Swagelok Company Patent applications |
Patent application number | Title | Published |
20160131264 | SELF-ALIGNING VALVE SEAL - A valve includes a valve body, a valve seat, and a poppet assembled with the valve body. The poppet includes an axially extending poppet stem and a radially extending poppet sealing surface. The poppet is axially movable between a closed position and an open position. The poppet sealing surface is defined by a sealing member disposed on the poppet stem. The sealing member is laterally movable on the poppet stem. When the poppet is moved from the open position to the closed position, the sealing member is laterally moved to align the sealing surface with the seating surface. | 05-12-2016 |
20140252758 | PULL-UP BY TORQUE FITTING WITH FEMALE THREADED NUT AND INTEGRAL DYNAMIC WEDGE - A fitting is provided that may optionally be pulled-up to its final assembled condition by torque rather than by turns. In one embodiment, at least one fitting component includes a structure that facilitates pull-up by torque. The structure may take a wide variety of different forms. | 09-11-2014 |
20140217321 | DIAPHRAGM VALVE WITH WELDED DIAPHRAGM SEAT CARRIER - A diaphragm valve with an assembly or cartridge that facilitates replacement of the diaphragm, the valve seat or both. The assembly may be a valve assembly having a diaphragm, a seat carrier and a valve seat that are combined into a discrete subassembly or cartridge for a diaphragm valve. The assembly as a discrete cartridge can be easily removed and replaced in order to change out the diaphragm or the valve seat or both. In one embodiment, the diaphragm has a perimeter that is welded to one side of the seat carrier. Flow capacity is favored by providing a gap between a seat carrier and a flow port of the valve body where the gap in part defines a flow area that is the same or greater than the flow area of the flow port. Methods for installing and replacing a valve assembly into a valve body are also disclosed. | 08-07-2014 |
20140191149 | CLAMP RING FOR WELDED DIAPHRAGMS - A diaphragm sealed flow cavity comprises a first body comprising a support surface, a diaphragm comprising an outer portion that is joined by a weld to the first body, a clamped portion, and an inner portion that is movable along an axis, with the clamped portion of the diaphragm being compressed between the bearing surface and the support surface. The diaphragm sealed flow cavity may include a cylindrical body having a crimped portion for joining the cylindrical body to the first body. The diaphragm sealed flow cavity may also include a member that applies a live load to the clamped portion of the diaphragm. In the exemplary embodiments, the diaphragm sealed flow cavity may be realized as part of a diaphragm flow control valve having a valve body, diaphragm and a housing. | 07-10-2014 |
20140130904 | ACTUATOR WITH VISUAL INDICATOR SLEEVE - A device, for example a flow control device, and actuator or both are provided with a heat shrinkable sleeve about an exterior surface of a housing for the device. The heat shrinkable sleeve may contain indicia or information relating to the device. The heat shrinkable sleeve may also be used to contain fluid and contaminants that escape from the device from exposure to an environment that is exterior the heat shrinkable sleeve. The housing may include structure that retains the heat shrinkable sleeve in an installed position. Such structure may be, for example, a recessed surface, a flange, a crimp or other structure. | 05-15-2014 |
20140103240 | ACTUATOR WITH DUAL DRIVE - A manually operated actuator is provided with an over-travel feature. The over-travel feature may be realized with a controlled thread backlash or with a biasing member such as a Belleville spring. When used with a flow control device such as a diaphragm valve, the over-travel feature allows the valve to open and close at actuator positions other than full stop positions. Embodiments for manual actuators and hybrid actuators are presented. | 04-17-2014 |
20140034619 | WELDING PURGE CONTROL USING ELECTRONIC FLOW CONTROL - A purging arrangement for a welding system uses automatic flow control function, such as an MFC, to control purge gas flow rate and/or pressure at the weld site. | 02-06-2014 |
20140034177 | BIO-PHARMACEUTICAL HOSE - A hose for use in bio-pharmaceutical applications includes an innermost tubular layer made from a fluoropolymer material. The tubular layer has an inner, relatively smooth and pure surface that defines an opening for transfer of various media. A layer of silicone is disposed next to an outer surface of the innermost tubular layer through use of, for example, an extrusion method. The outer surface of the tubular layer may first be modified by various treatments or chemicals to facilitate the adhesion of the silicone layer thereto. The silicone material may be solid or foamed. A reinforcement layer may be disposed adjacent to an outer surface of the silicone layer. The reinforcement layer may be formed of a wire braid having gaps. An outer jacket of silicone may be attached to the reinforcement layer and to the inner silicone layer through the gaps in the reinforcement layer. | 02-06-2014 |
20130270814 | CONDUIT CONNECTION WITH SENSING FUNCTION - Apparatus and method for mechanically attached connections of conduits may include a conduit gripping member, a drive member, and a seal member, the drive member causing axial movement of the conduit gripping member to indent into an outer surface of the conduit when the assembly is pulled-up, the drive member causing the seal member to form a zero clearance seal at a location that is axially spaced from the conduit gripping member. The zero clearance seal may comprise a face seal arrangement including a gasket, and the conduit gripping member may be a ferrule, ring or other device that can grip and optionally seal against the conduit outer surface. The assembly may include a sensing function for detecting or sensing a characteristic or condition of an assembly component or the fluid or both. In one embodiment, a body coupling member has a two piece construction of a main body and a conduit socket insert. A flared fitting embodiment is also provided. Sensing functions are also incorporated into fittings other than just zero clearance fittings. | 10-17-2013 |
20130264817 | CONDUIT FITTING WITH PULL-UP INDICATION - A fitting for a tube or pipe capable of functioning a high pressures having a first fitting component adapted to receive the conduit end; a conduit gripping device such as a ferrule or ferrules and a second fitting component that can be joined to the first fitting component to cause the conduit gripping device to grip the conduit and seal when assembled. In one aspect of the invention, the first fitting component is constructed from a material that is softer than the material used to construct the second fitting component. An additional aspect of the invention include a retaining portion on the second fitting component that constrains the tube gripping device against pressure. The retaining portion can also be configured to retain the tube gripping device to the second fitting component prior to installation and in a finger-tight condition. A further aspect of the invention includes a first fitting component in which an exterior portion of the component is work hardened radially outward from the tube gripping device. The fitting may optionally be provided with a structure to effect the pull-up by torque functionality. | 10-10-2013 |
20130214192 | COATED SEALS - The seal made between two surfaces is enhanced by forming a coating, such as a self-assembled monolayer of a functionalized fluorinated macromolecule, on one or both of the surfaces. | 08-22-2013 |
20130214185 | VALVE ACTUATOR WITH VENT - The present application relates to valve and actuator assemblies. The valve actuator assemblies may include a capless valve actuating arrangement, include a replaceable passage defining member that includes seal members, include a valve member that is assembled in a valve chamber from an end of the valve body that is opposite an end that a piston is assembled in, and/or include a valve member that may be rotated in a valve body without affecting the ability of the valve member to perform its sealing functions. | 08-22-2013 |
20130207385 | PUSH TO CONNECT CONDUIT FITTING WITH FERRULE - A push to connect fitting includes a body member adapted to receive a conduit end, a conduit comprising a first end that can be axially inserted into the body member and a conduit gripping device attached to an exterior surface of the conduit, and a retainer that retains the conduit in place when said conduit is fully inserted into the body member. Additional embodiments include providing a seal with the fitting that seals the exterior surface of the conduit, an optional load retaining sleeve for the conduit gripping device, and an optional gimbal. The push to connect aspect may be realized in the form of a single action unthreaded mechanical connection. | 08-15-2013 |
20130186520 | CONCURRENT FLOW OF ACTIVATING GAS IN LOW TEMPERATURE CARBURIZATION - Low temperature gas carburization of stainless steel using acetylene as the carburizing specie is carried out under soft vacuum conditions in the presence of hydrogen or other companion gas. Carburization is made to go faster by including HCl or other carbon-free, halogen-containing activating compound in the carburizing gas being fed to the carburization reactor. | 07-25-2013 |
20130181445 | FITTING FOR JACKETED CONDUITS - A conduit fitting includes a conduit connecting device, a jacket sealing device, and a venting device. The conduit connecting device grips and seals against an unjacketed portion of a metal conduit when the conduit connecting device is assembled on the metal conduit. The jacket sealing device can be joined with at least one of the metal conduit and the conduit connecting device to seal against a jacketed portion of the metal conduit, to at least partially define a cavity between the conduit connecting device and the jacketed portion of the conduit. The venting device is configured to move from a sealing position to a venting position to vent pressure in the cavity. | 07-18-2013 |
20130154261 | PULL-UP BY TORQUE FITTING WITH FEMALE THREADED NUT AND INTEGRAL DYNAMIC WEDGE - A fitting is provided that may optionally be pulled-up to its final assembled condition by torque rather than by turns. In one embodiment, at least one fitting component includes a structure that facilitates pull-up by torque. The structure may take a wide variety of different forms. | 06-20-2013 |
20130140815 | FITTING NUT WITH ADAPTED ENGAGING SURFACES - A fitting assembly is provided with a first fitting component having a stepped wall surface; and a second fitting component radially spaced from the first fitting component when the fitting assembly is in a finger tight condition prior to pull-up. When the second fitting component is displaced into contact with the stepped wall surface during fitting pull-up, the stepped wall surface assists in separating the first fitting component from the second fitting component upon fitting disassembly. | 06-06-2013 |
20130119659 | SINGLE AXIS PUSH TO CONNECT CONDUIT FITTING - A push to connect conduit fitting includes a first fitting component and a second fitting component and a releasable retaining structure for retaining the two fitting components in one or more retained axial positions as an unthreaded mechanical connection. In one of the retained axial positions a conduit may be inserted and a conduit retainer holds the conduit in position. A seal mechanism may also be provided to seal an outer surface of the conduit fitting assembly. Embodiments for a threaded mechanical connection are also disclosed. | 05-16-2013 |
20130025725 | PROCESS INTERFACE VALVE ASSEMBLY - A valve assembly includes a valve body having a fluid access passage extending from a process fluid port to an access port, a block valve disposed in the fluid access passage and movable between open and closed conditions, an access blocking device disposed in the fluid access passage between the access port and the block valve, and a valve interlock arrangement. The access blocking device is movable from an access blocking condition in which access to the block valve through the access port is blocked, to an access permitting condition in which access to the block valve through the access port is permitted. The valve interlock arrangement is configured such that the block valve is prevented from being moved to the closed condition when the access blocking device is in the access permitting condition. | 01-31-2013 |
20120318373 | METHOD OF ASSEMBLING A BALL VALVE - A ball valve includes a valve element and a single piece packing that seals the valve element within a valve cavity. The single piece packing is installed over the valve element at room temperature or may be molded thereon. The valve element may include a flow control element such as a ball and upper and lower trunnions. The various dimensions of the valve element and packing are selected to facilitate room temperature assembly and to substantially reduce the volume of packing material, thereby improving the performance of the valve over wider temperature ranges and pressure ratings. | 12-20-2012 |
20120187678 | TUBE FITTING - Fittings are provided for use with different types of tubing. One such fitting includes a gripping member having a sharp tube indenting edge that provides a seal between the tube gripping member and the tube. Another such fitting includes a tube gripping member having a body indenting edge that provides a seal between the tube gripping member and a fitting body. | 07-26-2012 |
20120043757 | CONDUIT FITTING WITH ATTACHED TORQUE COLLAR - A conduit fitting of the type having first and second threaded fitting components and at least one conduit gripping device, further includes a stroke limiting member that allows the fitting to be pulled up by applying a predetermined torque. In one embodiment, the stroke limiting member may be a non-integral torque collar. Alternatively, the fitting may also be pulled up by turns or may have an integral torque collar. In still another embodiment, a stroke limiting member is provided that may be used to enable a fitting that is designed to be pulled up by turns to also be pulled up by torque. In other embodiments, the non-integral torque collar may be installed onto one of the fitting components, and then deformed so as to prevent or make it more difficult to remove the torque collar after installation onto the fitting component. | 02-23-2012 |
20120038150 | TAPERED DRIVE NUT FOR CONDUIT FITTING - A drive nut for a fitting includes an interior socket centered on a central axis and configured to receive at least a rearward portion of a conduit gripping member. The socket is defined by a radial drive surface positioned to engage the conduit gripping member during pull-up, a first longitudinal surface radially outward of said drive surface and a radially tapered second longitudinal surface between the drive surface and the first tapered longitudinal surface, wherein a conduit gripping device contact the second longitudinal surface upon an initial pull-up and each remake. This geometry facilitates a greater number of available remakes by reducing lost stroke, and can provide less stroke loss for fittings pulled up by torque. | 02-16-2012 |
20120032439 | FITTING FOR TUBE AND PIPE WITH TAPERED FERRULE - A ferrule for a conduit fitting includes in one embodiment a generally annular body comprising a cylindrical interior wall, a rearward portion with a frusto-conical recess that presents a camming surface, and a tapered outer surface. The tapered outer surface extends radially outwardly from a forward portion of the generally annular body towards the rearward portion, with the rearward portion further comprising an outer wall portion that tapers radially inwardly at an angle μ towards a back end of the annular body. | 02-09-2012 |
20120025119 | Anti-Extrusion Packing Support - A seal arrangement for providing a fluid seal of an annulus between two conforming surfaces such as a stem and a bore. The seal arrangement may include a pair of packing support rings. Preferably, two pairs of the packing support rings are used in order to provide double ended or two sided axial support for the packing. The first and second support rings support a load on the packing during normal or rated temperature use, with preferably an interference fit with the stem to resist extrusion of the packing along the stem. The support rings may be nested together and comprises different materials. For example, one support ring may comprise metal and the other support ring comprise a softer material such as a polymer or elastomer. An example of a packing material is a fire resistant material. The metal support ring may be used to maintain load on the fire resistant packing in the event that the other support ring has been destroyed by fire or other cataclysmic event. | 02-02-2012 |
20120006443 | BIO-PHARMACEUTICAL HOSE - A hose for use in bio-pharmaceutical applications includes an innermost tubular layer made from a fluoropolymer material. The tubular layer has an inner, relatively smooth and pure surface that defines an opening for transfer of various media. A layer of silicone is disposed next to an outer surface of the innermost tubular layer through use of, for example, an extrusion method. The outer surface of the tubular layer may first be modified by various treatments or chemicals to facilitate the adhesion of the silicone layer thereto. The silicone material may be solid or foamed. A reinforcement layer may be disposed adjacent to an outer surface of the silicone layer. The reinforcement layer may be formed of a wire braid having gaps. An outer jacket of silicone may be attached to the reinforcement layer and to the inner silicone layer through the gaps in the reinforcement layer. | 01-12-2012 |
20120005878 | CONDUIT FITTING WITH FLEXIBLE TORQUE COLLAR - A conduit fitting of the type having first and second threaded fitting components and at least one conduit gripping device, further includes a stroke limiting member that allows the fitting to be pulled up by applying a predetermined torque. In one embodiment, the stroke limiting member may realized as an integral or integrated load bearing member that functions as a torque collar and deflects under load. The disclosure also presents a gauging structure and method for fittings that can be pulled up by turns, by torque or both. | 01-12-2012 |
20110309615 | FITTING WITH ADAPTED ENGAGING SURFACES - A fitting assembly is provided with a first fitting component having a stepped wall surface; and a second fitting component radially spaced from the first fitting component when the fitting assembly is in a finger tight condition prior to pull-up. When the second fitting component is displaced into contact with the stepped wall surface during fitting pull-up, the stepped wall surface assists in separating the first fitting component from the second fitting component upon fitting disassembly. | 12-22-2011 |
20110308655 | CLAMP RING FOR WELDED DIAPHRAGMS - A diaphragm sealed flow cavity comprises a first body comprising a support surface, a diaphragm comprising an outer portion that is joined by a weld to the first body, a clamped portion, and an inner portion that is movable along an axis, with the clamped portion of the diaphragm being compressed between the bearing surface and the support surface. The diaphragm sealed flow cavity may include a cylindrical body having a crimped portion for joining the cylindrical body to the first body. The diaphragm sealed flow cavity may also include a member that applies a live load to the clamped portion of the diaphragm. In the exemplary embodiments, the diaphragm sealed flow cavity may be realized as part of a diaphragm flow control valve having a valve body, diaphragm and a housing. | 12-22-2011 |
20110302762 | FITTING ASSEMBLY EVALUATING APPARATUS AND METHODS - The present application discloses methods and apparatus for installing fitting components, such as a conduit gripping device, on a conduit to form an assembly. The assembly is joinable with at least one other fitting component to form a fitting. The present application also discloses methods and apparatus for evaluating characteristics of components of a mechanically attached connection. Characteristics that may be evaluated include, but are not limited to, the position of a conduit gripping device on a conduit, an amount of axial compression or stroke of the conduit gripping device, an amount of clamping force applied to the conduit gripping device as the conduit gripping device is compressed, and an amount of torque applied to members that compresses the conduit gripping device. | 12-15-2011 |
20110298211 | CONDUIT FITTING WITH SPLIT TORQUE COLLAR - A conduit fitting of the type having first and second threaded fitting components and at least one conduit gripping device, further includes a stroke limiting member that allows the fitting to be pulled up by applying a predetermined torque. In one embodiment, the stroke limiting member may be a torque collar. Alternatively, the fitting may also be pulled up by turns, hi still another embodiment, a stroke limiting member is provided that may be used to enable a fitting that is designed to be pulled up by turns to also be pulled up by torque. Different embodiments are provided for the stroke limiting member, including a visual indication as well as a torque indication. | 12-08-2011 |
20110278840 | FERRULE WITH INTERNAL RECESS AND CYLINDRICAL WALL - A ferrule for a metal tube fitting includes an annular body having a generally cylindrical radially interior wall extending through the center of the ferrule. An outer radial wall extends from the ferrule front end to a rearward flange portion of the annular body. The outer radial wall has: a first tapered portion extending from the ferrule front end with an increasing radial dimension towards the rearward flange portion, the first tapered portion extending to a crown portion, the crown portion including a convex surface that tapers radially inwardly towards the rearward flange portion. | 11-17-2011 |
20110277309 | PULL-UP BY TORQUE FERRULE FITTING - A ferrule type, flareless fitting is provided that may optionally be pulled-up to its assembled condition by torque rather than by turns. In one embodiment, at least one fitting component includes a structure that facilitates pull-up by torque and allows the fitting to be remade. The structure may take a wide variety of different forms. Examples of fitting component structures that facilitate pull-up by torque and allow the fitting to be remade include, but are not limited to, deformable or compressible devices or structures that are configured to increase the torque required to further tighten the fitting components when the fitting is properly pulled up, resiliently deformable structures that bias a tube gripping device into engagement with a conduit when the fitting is remade to an initial pull-up position, and plastically deformable retaining structures that maintain a tube gripping device in sealing en a ement with a conduit when a fittin is disassembled. | 11-17-2011 |
20110266485 | VALVE AND ACTUATOR ASSEMBLIES - The present application relates to valve and actuator assemblies. The valve actuator assemblies may include a capless valve actuating arrangement, include a replaceable passage defining member that includes seal members, include a valve member that is assembled in a valve chamber from an end of the valve body that is opposite an end that a piston is assembled in, and/or include a valve member that may be rotated in a valve body without affecting the ability of the valve member to perform its sealing functions. | 11-03-2011 |
20110204618 | FITTING FOR FLUID CONDUITS - A fitting for a conduit is provided with first and second fitting components, a gripping member, and a live-loading mechanism. The first fitting component is adapted to receive a conduit along a central axis. The gripping member includes a gripping portion adapted to engage the conduit when the gripping member is tightened to the conduit. The second fitting component is adapted to be joined to the first fitting component to provide a seal between the gripping member and at least one of the first and second fitting components. The live-loading mechanism is adapted to hold the gripping portion in live-loaded engagement with the conduit when the first fitting component is separated from the second fitting component. | 08-25-2011 |
20110181042 | CONDUIT GRIPPING DEVICE HAVING RETAINING STRUCTURE FOR CONDUIT FITTING - The disclosure presents exemplary embodiments of a cartridge nut concept for conduit fittings. The cartridge nut concept may include the feature of loosely retaining one or more conduit gripping devices with a fitting component such as a male or female threaded nut. The cartridge nut concept may be realized using one or more geometry or shape features or characteristics of one or more conduit gripping devices. Still further, the cartridge nut concept may be realized in combination with a ferrule cartridge concept. | 07-28-2011 |
20110089687 | MODULAR FITTING WITH GRIPPING DEVICE FOR CONDUITS - A modular fitting for conduits such as tube and pipe comprises a universal body ( | 04-21-2011 |
20110049877 | FERRULE WITH RELIEF TO REDUCE GALLING - High localized loading, galling, and high torque forces have been generally eliminated or greatly reduced in a two ferrule tube fitting assembly through suitable modification of the rear ferrule so as to redirect the reaction forces acting between the front ferrule and the drive nut. The rear ferrule has a cylindrical interior wall that closely surrounds the tube end and is provided on the interior cylindrical wall with a circumferentially continuous radial recess that is located between the nose and rear wall of the rear ferrule. The rear ferrule also has a radially external wall that is substantially conical and additionally shaped to extend radially outward toward the enlarged diameter portion or flange of the rear ferrule. The rear ferrule further includes a contoured face on the rear driven surface of the ferrule that engages the drive surface of the drive nut. | 03-03-2011 |
20110030849 | LOW TEMPERATURE CARBURIZATION UNDER SOFT VACUUM - Low temperature carburization of stainless steel using acetylene as the carburizing specie is carried out under soft vacuum conditions in the presence of hydrogen or other companion gas. As a result, formation of soot and the undesirable thermal oxide film that normally occurs during low temperature carburization is eliminated virtually completely. | 02-10-2011 |
20110006521 | FITTING FOR METAL PIPE AND TUBING - A tube fitting that uses only two components, namely a fitting body and a fitting nut. The nut and body are adapted to be threadably coupled together by relative rotation therebetween. The nut includes an integral tube gripping ring that cooperates with a camming surface on the body when the fitting is made-up. The camming surface preferably has a steep camming angle. The ring is radially compressed against the tube outer wall to form a seal and a tight tube grip. The ring also forms a line contact-type seal against the camming surface. The ring is designed to have a hinging action and to plastically deform during pull-up to embed into the tubing for excellent tube grip, and an axially adjacent swage or collet zone that isolates any stress riser resulting from the embedding action from vibration effects. The fitting components, and particularly the ring, may be case hardened. The fitting may include a self-gauging feature to indicate sufficient pull-up and to prevent excessive pull-up. Also provided is a single ferrule tube fitting that uses a steep camming surface and has a hardness ratio that is at least about 3.3 times the hardness of the stainless steel tube end on the Vickers scale. | 01-13-2011 |
20100276624 | SEAL WITH SEAL SUPPORT SHOULDER - A seal arrangement for a fluid device includes a seal member that is disposed in a first groove formed in a body and one or more backup members disposed in a second groove formed in the body, with a shoulder between the first and second grooves against which the seal member is supported. The fluid device may be any device that contains a fluid, such as, for example, a valve, a regulator or a fluid connector. The body may be, for example, a stem-like member or other device that is disposed in a bore and for which a fluid-tight seal is needed to prevent fluid flow along the annulus between the stem and the bore wall. The shoulder may be used, for example, to provide a rigid support for the seal member under pressure, in one embodiment supporting about half of the bulk material of the seal member under pressure. | 11-04-2010 |
20100219631 | CONDUIT FITTING WITH PULL-UP INDICATION - A fitting for a tube or pipe capable of functioning a high pressures having a first fitting component adapted to receive the conduit end; a conduit gripping device such as a ferrule or ferrules and a second fitting component that can be joined to the first fitting component to cause the conduit gripping device to grip the conduit and seal when assembled. In one aspect of the invention, the first fitting component is constructed from a material that is softer than the material used to construct the second fitting component. An additional aspect of the invention include a retaining portion on the second fitting component that constrains the tube gripping device against pressure. The retaining portion can also be configured to retain the tube gripping device to the second fitting component prior to installation and in a finger-tight condition. A further aspect of the invention includes a first fitting component in which an exterior portion of the component is work hardened radially outward from the tube gripping device. The fitting may optionally be provided with a structure to effect the pull-up by torque functionality. | 09-02-2010 |
20100213705 | CONDUIT FITTING WITH TORQUE COLLAR - A conduit fitting of the type having first and second threaded fitting components and at least one conduit gripping device, further includes a stroke limiting member that allows the fitting to be pulled up by applying a predetermined torque. In one embodiment, the stroke limiting member may be a non-integral torque collar and in another embodiment the stroke limiting member may be two engaging surfaces integrally formed with the fitting components. Alternatively, the fitting may also be pulled up by turns. In still another embodiment, a stroke limiting member is provided that may be used to enable a fitting that is designed to be pulled up by turns to also be pulled up by torque. The stroke limiting member facilitates many remakes of the fitting, including remakes by torque. | 08-26-2010 |
20100201118 | CONDUIT CONNECTION WITH SENSING FUNCTION - Apparatus and method for mechanically attached connections of conduits may include a conduit gripping member ( | 08-12-2010 |
20100200078 | METHOD OF ASSEMBLING A BALL VALVE - A ball valve includes a valve element and a single piece packing that seals the valve element within a valve cavity. The single piece packing is installed over the valve element at room temperature or may be molded thereon. The valve element may include a flow control element such as a ball and upper and lower trunnions. The various dimensions of the valve element and packing are selected to facilitate room temperature assembly and to substantially reduce the volume of packing material, thereby improving the performance of the valve over wider temperature ranges and pressure ratings. | 08-12-2010 |
20100194107 | TUBE FITTING - A ferrule type, flareless fitting is provided that includes a first fitting component ( | 08-05-2010 |
20100148501 | FERRULE ASSEMBLY FOR CONDUIT FITTING - Two conduit gripping devices that are to be used together in a conduit fitting assembly are interconnected or held together as a cartridge or subassembly prior to assembly with fitting components to form a fitting assembly. In a more specific embodiment, one or both of the conduit gripping devices comprises a retaining structure by which the devices are mechanically connected together as a subassembly. For example, in one embodiment a front ferrule and a back ferrule for a tube fitting may be snapped together. | 06-17-2010 |
20100140932 | TAPERED NUT FOR TUBE OR PIPE FITTING - A drive nut ( | 06-10-2010 |
20100140527 | COATED SEALS - The seal made between two surfaces is enhanced by forming a coating ( | 06-10-2010 |
20100138051 | METHOD AND ARRANGEMENT FOR ACTUATION - The present application relates to an arrangement for selectively providing a plurality of output forces, such as for example, a higher and a lower output force or a predetermined, time dependent output force. In one embodiment, a first piston assembly is moveable between a first and a second position and a second piston assembly moveable between a third and a fourth position. When the first piston assembly is in the first position, the second piston assembly is selectively movable between the third position and the fourth position. When the first piston assembly moves the second position, it moves the second piston assembly to the fourth position. | 06-03-2010 |
20100133812 | Tube Fitting - Fittings are provided for use with different types of tubing. One such fitting includes a gripping member having a sharp tube indenting edge that provides a seal between the tube gripping member and the tube. Another such fitting includes a tube gripping member having a body indenting edge that provides a seal between the tube gripping member and a fitting body. | 06-03-2010 |
20100116377 | HYBRID CARBURIZATION WITH INTERMEDIATE RAPID QUENCH - A carbon hardened surface is produced in a metal workpiece without forming carbide precipitates by carburizing the workpiece at high temperature carburization conditions, rapidly quenching the workpiece, and then carburizing the workpiece under low temperature carburization conditions. | 05-13-2010 |
20100090146 | VALVE SEALING ARRANGEMENTS AND METHODS - A valve includes a valve body, a valve element to selectively control flow through the valve, and a seal member and seat member together providing a fluid-tight seal between a valve cavity and a fluid passage in the valve body. A live-loaded biasing member is adapted to apply a live-loaded sealing force to the seat member to bias the seat member toward sealing engagement with the valve element. When the pressure in the fluid passage exceeds the pressure in the valve cavity, an unbalanced passage pressure load biases the seat member toward sealing engagement with the valve element. When the pressure in the valve cavity exceeds the pressure in the fluid passage, an unbalanced cavity pressure load biases the seat member toward sealing engagement with the valve element. The live-loaded sealing force is in parallel with each of the unbalanced passage pressure load and the unbalanced cavity pressure load. | 04-15-2010 |
20100038566 | VALVE AND ACTUATOR ASSEMBLIES - The present application relates to valve and actuator assemblies. The valve actuator assemblies may include a capless valve actuating arrangement, include a replaceable passage defining member that includes seal members, include a valve member that is assembled in a valve chamber from an end of the valve body that is opposite an end that a piston is assembled in, and/or include a valve member that may be rotated in a valve body without affecting the ability of the valve member to perform its sealing functions. | 02-18-2010 |
20100037991 | DIFFUSION PROMOTERS FOR LOW TEMPERATURE CASE HARDENING - Low temperature carburization of a workpiece surface is accomplished faster by impregnating the surface with a diffusion promoter prior to or during the low temperature carburization process. | 02-18-2010 |
20100025990 | FERRULE WITH RADIAL CROWN - A ferrule for a metal tube fitting includes an annular body having a generally cylindrical radially interior wall extending through the center of the ferrule. An outer radial wall extends from the ferrule front end to a rearward flange portion of the annular body. The outer radial wall has: a first tapered portion extending from the ferrule front end with an increasing radial dimension towards the rearward flange portion, the first tapered portion extending to a crown portion, the crown portion including a convex surface that tapers radially inwardly towards the rearward flange portion. | 02-04-2010 |
20100012625 | WELDING PURGE CONTROL USING ELECTRONIC FLOW CONTROL - A purging system for an arc welder is disclosed wherein the purging system comprises a control system ( | 01-21-2010 |
20090314087 | ULTRASONIC TESTING OF FITTING ASSEMBLY - Apparatus and method for determining relative and/or absolute axial position of a conduit end within a fluid coupling includes application of input ultrasonic energy in the form of transient shear waves and analyzing the reflected energy. Application of the input energy collected at different radial positions about a first axial location is used with wavelet based correlation techniques to better analyze the reflected energy signals. Quality of the abutment between the conduit end and a surface associated with the coupling may also be determined as a separate or combined feature of the axial position determination. | 12-24-2009 |
20090299514 | FITTING ASSEMBLY EVALUATING APPARATUS AND METHODS - Methods and apparatus for evaluating characteristics of components of a mechanically attached connection are disclosed. Characteristics that may be evaluated include, but are not limited to, the position of a conduit gripping device on a conduit, an amount of axial compression or stroke of the conduit gripping device, and an amount of clamping force applied to the conduit gripping device as the conduit gripping device is axially compressed or stroked. | 12-03-2009 |
20090289452 | PULL-UP BY TORQUE FITTING - A fitting is provided that may optionally be pulled-up to its final assembled condition by torque rather than by turns. At least one fitting component includes a structure that facilitates pull-up by torque. The structure may take a wide variety of different forms. In one embodiment, at least one of the external surface of the first threaded fitting component ( | 11-26-2009 |
20090160133 | FITTING FOR TUBE AND PIPE WITH CARTRIDGE - A fitting for a tube or pipe capable of functioning a high pressures having a first fitting component adapted to receive the conduit end; a conduit gripping device such as a ferrule or ferrules and a second fitting component that can be joined to the first fitting component to cause the conduit gripping device to grip the conduit and seal when assembled. In one aspect of the invention, the first fitting component is constructed from a material that is softer than the material used to construct the second fitting component. An additional aspect of the invention include a retaining portion on the second fitting component that constrains the tube gripping device against pressure. The retaining portion can also be configured to retain the tube gripping device to the second fitting component prior to installation and in a finger-tight condition. A further aspect of the invention includes a first fitting component in which an exterior portion of the component is work hardened radially outward from the tube gripping device. The fitting may optionally be provided with a structure to effect the pull-up by torque functionality. | 06-25-2009 |
20090033093 | FITTING FOR METAL PIPE AND TUBING - A tube fitting that uses only two components, namely a fitting body and a fitting nut. The nut and body are adapted to be threadably coupled together by relative rotation therebetween. The nut includes an integral tube gripping ring that cooperates with a camming surface on the body when the fitting is made-up. The camming surface preferably has a steep camming angle. The ring is radially compressed against the tube outer wall to form a seal and a tight tube grip. The ring also forms a line contact-type seal against the camming surface. The ring is designed to have a hinging action and to plastically deform during pull-up to embed into the tubing for excellent tube grip, and an axially adjacent swage or collet zone that isolates any stress riser resulting from the embedding action from vibration effects. The fitting components, and particularly the ring, may be case hardened. The fitting may include a self-gauging feature to indicate sufficient pull-up and to prevent excessive pull-up. Also provided is a single ferrule tube fitting that uses a steep camming surface and has a hardness ratio that is at least about 3.3 times the hardness of the stainless steel tube end on the Vickers scale. | 02-05-2009 |
20080296895 | FERRULE WITH RELIEF TO REDUCE GALLING - High localized loading, galling, and high torque forces have been generally eliminated or greatly reduced in a two ferrule tube fitting assembly through suitable modification of the rear ferrule so as to redirect the reaction forces acting between the front ferrule and the drive nut. The rear ferrule has a cylindrical interior wall that closely surrounds the tube end and is provided on the interior cylindrical wall with a circumferentially continuous radial recess that is located between the nose and rear wall of the rear ferrule. The rear ferrule also has a radially external wall that is substantially conical and additionally shaped to extend radially outward toward the enlarged diameter portion or flange of the rear ferrule. The rear ferrule further includes a contoured face on the rear driven surface of the ferrule that engages the drive surface of the drive nut. | 12-04-2008 |
20080246278 | TUBE FITTING FOR STAINLESS STEEL TUBING - A tube fitting that uses only two components, namely a fitting body and a fitting nut. The nut and body are adapted to be threadably coupled together by relative rotation therebetween. The nut includes an integral tube gripping ring that cooperates with a camming surface on the body when the fitting is made-up. The camming surface preferably has a steep camming angle. The ring is radially compressed against the tub e outer wall to form a seal and a tight tube grip. The ring also forms a line contact-type seal against the camming surface. The ring is designed to have a hinging action and to plastically deform during pull-up to embed into the tubing for excellent tube grip, and an axially adjacent swage or collet zone that isolates any stress riser resulting from embedding action from vibration effects. The fitting components, and particularly the ring, may be case hardened, the fitting may include a self-gauging feature to indicate sufficient pull-up to percent excessive pull-up. Also provided is a single ferrule tube fitting that uses a steep camming surface and is at least about 3.3 times harder than the stainless steel tube end. | 10-09-2008 |
20080238090 | Fitting With Lubricated Ferrule - A union in which a conduit is joined to a fitting so as to form a contact zone of high gripping pressure between the wall of the conduit and an engaging surface of the fitting, this contact zone being outboard of the region of highest stress formed in the wall of the conduit, an open volume being formed in the union adjacent this contact zone, the fitting including an abundance of liquid lubricant in at least a portion of this open volume. | 10-02-2008 |
20080210312 | FLOW CONTROL DEVICE - A flow control device having a control member for forming a seal with another part of the flow control device. The control member having a base material and a portion or surface that is a softer or more deformable than the base material or the portion of the control device that the control member forms a seal with. The differences in hardness and/or the ability of the control member portion to deform, aids in forming the seal. | 09-04-2008 |
20080202615 | Modular surface mount manifold - A modular manifold system is provided for interconnecting fluid components of a fluid system in a reduced area. The system is comprised of a one or more bridge fittings having an internal fluid passageway which has an inlet end in fluid communication with an outlet port of a first fluid component, and an outlet end in fluid communication with an inlet port of a second fluid component. The bridge fittings may be mounted within a channel of a backing plate for structural support. An optional locator plate may be utilized which is mounted over the ends of the bridge fittings in order to align the inlet and outlet ports of the fluid components with the inlet and outlet ends of the bridge fittings. The bridge fittings may also be mounted to the locator plate in multiple directions forming multiple flow paths. Additionally, the bridge fittings may be stacked to form multiple layers where bridge fittings of one layer may be in fluid communication with bridge fittings of another layer. The invention may further comprise seals provided in a recess between the fluid ports and the mating bridge fittings ends. | 08-28-2008 |