Class / Patent application number | Description | Number of patent applications / Date published |
072369000 | Bending | 23 |
20090007620 | Method and Device for Bending and Reshaping Profiles By Means of Roller Bending or Matrix Bending - A method and a device for bending and reshaping profiles by means of roller bending or matrix bending. The profile that is to be worked on is bent or reshaped under the influence of one or several bending tools. In order to be able to bend and reshape also brittle profiles that are difficult to bend, an oscillator whose oscillations are supplied to the profile that is to be bent or reshaped, at least in the reshaping zone, is assigned to at least one of the bending or reshaping tools, or both. | 01-08-2009 |
20090064752 | PROCESS FOR STRAIGHTENING TUBE AND METHOD FOR PRODUCING TUBE THEREWITH - In straightening a tube using a roll straightening machine provided with drum type straightening roll pairs vertically opposingly disposed, at least an outer layer portion of a roll main body is made of elastic material having spring type hardness Hs (JIS K 6301 A type) of 50 to 100 in at least three pairs of straightening rolls on an outlet side of the roll straightening machine, and an offset amount is imparted to a tube engaged in the three pairs, at least, of straightening opposing rolls such that η defined by an equation (1) ranges from 1.0×10 | 03-12-2009 |
20090090158 | WELLBORE MANUFACTURING PROCESSES FOR IN SITU HEAT TREATMENT PROCESSES - A method includes making coiled tubing at a coiled tubing manufacturing unit coupled to a coiled tubing transportation system. One or more coiled tubing reels are transported from the coiled tubing manufacturing unit to one or more moveable well drilling systems using the coiled tubing transportation system. The coiled tubing transportation system runs from the tubing manufacturing unit to one or more movable well drilling systems, and then back to the coiled tubing manufacturing unit. | 04-09-2009 |
20090158806 | Method For Bending Tubular Articles With A Relative Ratio Of The Bending Radius And The Outer Diameter Of The Finished Pipe Which Is Less Than 3 - Method for bending tubular articles with a relative ratio of the bending radius (R) and the outer diameter (D) of the finished pipe which is less than 3, comprising the following steps: forging an article made of material with a predefined composition depending on the final use and with a predefined length (L) in the longitudinal direction and an outer diameter (D); providing a die having an asymmetrical bottom die half with seat for the pipe; and a top die half with punch asymmetrically arranged in the longitudinal direction (X-X) with respect to the vertical centre axis of the die; heating the article in an oven to the required temperature for forging depending on the specific composition of the material; positioning the article inside the bottom die half in the longitudinal direction; closing of the two die halves so as to start bending of the article; opening the die; and extracting the bent article. | 06-25-2009 |
20090199612 | Hot bend pipe and a process for its manufacture - A high-strength hot bend pipe which has a balance between an excellent strength of at least X70 grade and toughness and which has excellent tensile properties and a weld metal with excellent low temperature toughness is manufactured. A UOE steel pipe having a base metal with a composition of C: 0.03-0.12%, Si: 0.05-0.50%, Mn: 1.4-2.2%, S: at most 0.01%, Al: at most 0.06%, N: at most 0.008%, and a remainder of Fe and impurities, with the carbon equivalent (Ceq) being at most 0.36% and the weld cracking parameter (Pcm) being at most 0.22%, and having a weld metal with a weld cracking parameter (Pcm) of at most 0.28%, a B content of at most 5 ppm, and an O content of at most 280 ppm is heated to a temperature range of 900-1100° C. and subjected to bending, and then is immediately cooled to a temperature range of 300° C. or lower at a cooling rate of at least 3° C./sec, and then is tempered in a temperature range of 300-500° C. | 08-13-2009 |
20090241630 | METHOD AND APPARATUS FOR BENDING A METAL MEMBER - A work is placed on a pair of dies and a knock out die, and a punch is caused to descend, whereby the work is subjected to bending into a box-shape. In order to reduce a camber generated by an internal stress after the bending, on a surface of the knock out die, widths of friction-reduced regions at side portions thereof are made to be larger than a width of the friction-reduced region at a center portion thereof, with the result that a distribution of friction at the respective portions of the knock out die during processing is improved. | 10-01-2009 |
20100011832 | APPARATUS AND METHOD FOR RAM BENDING OF TUBE MATERIAL - The present invention provides a new bending apparatus and bending method of a tube material which makes it possible to achieve all of bending by a large bending radius not requiring large scale equipment or die, bending resistant to wrinkling and buckling at an inner side of the bending, and bending with a high productivity, that is, a ram bending apparatus using a punch | 01-21-2010 |
20100281942 | METHOD FOR BENDING PIPES - Method for bending pipes (T) or similar elongated elements in a pipe bending machine includes a seat for positioning the pipe (T) to be bent, a forming roller (R) having a predetermined radius (RR) around which the pipe is bent and appropriated devices for seizing and moving the pipe. | 11-11-2010 |
20110259075 | Pipe Bending Machine - A pipe bending machine has a beam mounted in see-saw pivotal relation on a fulcrum and spaced apart cradles support the pipe. An actuator initially drives the second cradle and the beam apart to pivot the pipe about the first cradle until the pipe is in contact with the die and thereafter drives the beam away from the second cradle to bend the pipe against the die. The mechanical advantage of the levered operation requires only a single actuator motion to bend the pipe. An external mandrel allows the pipe to be incrementally fed through the bending machine and secures the pipe against cross-sectional distortion during the bending process. | 10-27-2011 |
20110271734 | Wedge Driven Pipe Bending Machine - A pipe bending machine has a stiff-back which is driven by a pivoting wedge. A linkage applies force from the actuator to the wedge in a direction parallel to a longitudinal axis of the stiff-back. The stiff-back pivots on a first fulcrum and the wedge slides on a bed which pivots on a second fulcrum. The actuator drives the wedge between the stiff-back and the bed to rotate the stiff-back at the first fulcrum and bend the pipe seated in the stiff-back against the pipe bending face of a die. The conversion of the longitudinal force applied to the wedge into a transverse force applied to the stiff-back provides a significant mechanical advantage which varies directionally as the stiff-back rotates about its fulcrum to maintain a constant force on the stiff-back. | 11-10-2011 |
20110277529 | METHOD OF PROFILING A TUBE OF GIVEN LENGTH - An embodiment of a method for profiling a tube of given length, whereby, after inserting the tube between at least one pair of rolls having respective coplanar, parallel axes of rotation crosswise to the tube, the rolls are moved onto the tube and pressed gradually against the tube, which, at the same time, is moved axially back and forth. | 11-17-2011 |
20120067103 | Method of Forming a Drug-Eluting Medical Device - A method of forming a stent includes the steps of forming a composite member into a stent pattern, forming openings through an outer member of the composite member, processing the composite member to remove a portion of the composite member without adversely affecting the outer member, and swaging the outer member to create a plurality of lumens. The composite member may be formed of an outer member with an hourglass-shaped inner member, wherein the processing step removes the inner member and the swaging step forms two lumens from the hourglass shaped cavity. The composite member may be formed of an outer member, an inner member, and an intermediate member, wherein the processing step removes the intermediate member and the swaging step presses portions of the outer member into contact with the inner member to form two lumens separated by the inner member. | 03-22-2012 |
20120192612 | PIPE MANIPULATOR - A pipe manipulator is configured to move a pipe in an apparatus for bending a pipe. The apparatus includes a feeding device, a heating device configured to annularly surround the pipe. at least one bending arm disposed axially downstream from the heating device in a pipe feed direction, and a bending lock disposed on the at least one bending arm and configured to grasp a pipe section to be bent and to move around a bending axis of rotation during a feeding of the pipe. The pipe manipulator includes a receiving sleeve axially displaceable in the pipe feed direction and disposed displaceably in the feeding device at an end of the pipe. The receiving sleeve is configured to reach into the pipe and to firmly clamp the pipe from an inside of the pipe and to guide the pipe in a defined manner axially through the heating device. | 08-02-2012 |
20130098133 | MOTOR VEHICLE PEDALS AND MANUFACTURING METHODS THEREOF - According to an implementation a method for manufacturing a pedal for a motor vehicle is provided. The method comprising inserting into a hollow profile a flexible yet substantially incompressible retainer member and subsequently applying one or more forces to an external surface of the hollow profile to induce a change in shape of the hollow profile from a first shape to a second shape. The substantial incompressibility of the retainer member inhibiting deformations in the internal wall surface of the hollow profile as the one or more forces are applied to the external wall surface of the hollow profile so that the internal wall surface is substantially free of deformations upon the hollow profile assuming the second shape, the flexibility of the retainer member allowing it to bend in the direction of the applied one or more forces to accommodate a change in shape of the hollow profile from the first shape to the second shape. | 04-25-2013 |
20130152657 | CURVED CANNULA - The cross section of a curved portion of a curved cannula is oval shaped. The oval is oriented such that a major axis of the oval is generally aligned with the curved portion's bend radius. In one aspect, the cannula tube is ovalized so that the radius of curvature of an interior wall approaches the outer radius of an instrument component that contacts the curved portion during instrument insertion. In this first aspect, a wider contact patch area between the instrument component and the cannula results, which reduces friction and stick-slip during insertion. In another aspect, the cannula tube is ovalized so that the radius of curvature of an interior wall is less than the outer radius of an instrument component that contacts the curved portion during instrument insertion. In this second aspect, two contact patches are established between the instrument component and cannula, which also reduces friction and stick-slip during instrument insertion. Also disclosed is a cannula orientation marking that changes circumferential orientation along a length the curved cannula to help a person who is inserting the cannula to properly twist the cannula during insertion. | 06-20-2013 |
20130333438 | Wedge Driven Pipe Bending Machine - A pipe bending machine has a stiff-back which is driven by a pivoting wedge. A linkage applies force from the actuator to the wedge in a direction parallel to a longitudinal axis of the stiff-back. The stiff-back pivots on a first fulcrum and the wedge slides on a bed which pivots on a second fulcrum. The actuator drives the wedge between the stiff-back and the bed to rotate the stiff-back at the first fulcrum and bend the pipe seated in the stiff-back against the pipe bending face of a die. The conversion of the longitudinal force applied to the wedge into a transverse force applied to the stiff-back provides a significant mechanical advantage which varies directionally as the stiff-back rotates about its fulcrum to maintain a constant force on the stiff-back. | 12-19-2013 |
20140033790 | Stent - A radially expansible annular stent is disclosed. The stent comprises a plurality of stenting turns around a lumen centred on a longitudinal axis. Adjacent turns of the stent are joined by connector struts. The stent annulus has a wall thickness related to the material from which it is formed. The radial thickness of the connector struts is smaller than that of the stent annulus. A method of making such a stent is also disclosed. The method includes cutting the connector struts from a tubular workpiece with a laser beam. The laser beam is aimed so as to be offset from a longitudinal axis of the workpiece to provide the reduced radial thickness of the connector struts. | 02-06-2014 |
20140144201 | MOBILE CONDUIT FABRICATION WORK CART FOR JOBSITE USE - An apparatus and associated method for bending a metal conduit. A structural framework defines an elongated rectangular planar layout surface sized to continuously contact the metal conduit in support while making a bend mark on the metal conduit. A coordinate reference measures a placement of the bend mark on the metal conduit. A grooved bending shoe is mounted to the framework and configured to bend the metal conduit. | 05-29-2014 |
20140208820 | Lever Bender and Related Method of Use - A lever bender includes a first handle pivotally attached to a second handle. The first handle includes a forming mandrel around which a pipe is bent and a stop member for receiving and substantially holding the pipe in place prior to bending. The second handle includes a forming head that engages and bends the pipe around the forming mandrel. The stop member includes a pipe-engaging member that receives a pipe and a locking member adjacent to the pipe-engaging member. The locking member includes a retaining member moveable between a projecting position where the retaining member secures the pipe between the pipe-engaging member and the locking member and a retracted position permitting a pipe to either be received within the pipe-engaging member or removed from the pipe-engaging member. | 07-31-2014 |
20150027193 | PIPE BENDING MACHINE WITH REAR CALENDER AND ITS RESPECTIVE CALENDERING PROCEDURE - A machine to bend pipes and the like, equipped with at least one bending die working table more than the machines used to bend pipes and the like, | 01-29-2015 |
20150075247 | MANUFACTURING PROCESS FOR TUBE-IN-TUBE INTERNAL HEAT EXCHANGER - A method of bending a tube arrangement including an inner tube disposed within an outer tube is performed using a bending die having a concave groove including a curved portion extending around a peripheral surface of the bending die, the curved portion of the concave groove having at least one ridge projecting therefrom. The tube arrangement is located within the concave groove and a force is applied to the tube arrangement in a direction toward the curved portion of the bending die to cause the tube arrangement to conform to the shape of the concave groove. The at least one ridge projecting from the concave groove causes the outer tube to deform such that an interior surface of the outer tube contacts an exterior surface of the inner tube, securing a position of the inner tube within the outer tube. | 03-19-2015 |
20150314354 | Cable Bender - A system and method for bending a cable. The system has a stationary portion which has at least one stationary pivot. A moveable portion has at least one pivot. The moveable portion moves inwardly and outwardly relative to the stationary portion. A cable is inserted between the moveable portion and the stationary portion. The moveable portion is retracted inwardly and a cable is bent. | 11-05-2015 |
20160030991 | Pipe Bending for Reel-Lay Operations - A method and an apparatus bend a pipe to mitigate internal wrinkling, with particular benefit when bending a lined pipe upon spooling. Bending is performed continuously by advancing the pipe through a bending zone while an internal mandrel is held at the bending zone to resist wrinkling In one variant, the mandrel includes longitudinally-spaced pipe-engaging elements and a tensile link between the elements allows relative movement between the elements. A hold-back connection on one of the elements applies hold-back force to that element to be transmitted to the other element via the tensile link. In another variant, the mandrel includes an elongate pipe-engaging body with a hold-back connection at one end of the body. The body is flexible to bend with the pipe and is shaped to engage an inner surface of the pipe along most of the length of the body. | 02-04-2016 |