PACIFIC BEARING COMPANY Patent applications |
Patent application number | Title | Published |
20150007676 | FLOATING NUT AND CARRIAGE ASSEMBLY - A linear guide including a guide rail, a carriage, a drive screw and a connection arrangement is provided. The guide rail defines a linear travel path. The carriage is mounted to the guide rail for motion along the linear travel path. The drive screw is operably mounted to the guide rail. The connection arrangement couples the drive screw to the carriage to convert rotary motion of the drive screw to linear actuation of the carriage along the linear travel path. The connection arrangement provides a single degree of linear freedom between the drive screw and the carriage in a direction that is generally perpendicular to the linear travel path. The single degree of linear freedom permits relative motion between the screw and the carriage to relieve internal binding between the relative components. | 01-08-2015 |
20140150239 | Guide Rail and Method for Manufacturing Same - A guide rail that includes a base rail having a channel therein and at least one finger extending from a portion of the channel. The guide rail further includes a race insert mounted against the at least one finger. In an embodiment of the invention, the race insert has a first and second raceway associated with the at least one finger extending from a portion of the channel. Further, the first and second raceways have different load transmission directions, wherein the load transmission directions of both the first and second raceways are oblique to the direction that the at least one finger extends from a portion of the channel. | 06-05-2014 |
20130160585 | Nut with Flexible Fingers and Radial Compression Members - A nut and lead screw assembly is disclosed. The nut includes a plurality of flexible fingers for adjusting the engagement of a threaded or unthreaded portion of the nut with corresponding threads of a lead screw. The engagement between the nut and the lead screw is adjusted by installing at least one radial compression member into a circumferential groove formed in the outer surface of the flexible fingers. | 06-27-2013 |
20130133448 | INVERTED SPLINE RAIL SYSTEM - A inverted spline rail system is provided. The inverted spline rail system includes a drive motor that rotates a drive screw. The drive screw has a associated nut body. The nut body includes a attachment portion that a user can attach a device that requires linear motion control. Furthermore, the nut body is located inside of a cylindrical body that encases the drive screw. The nut body has guide teeth that mate with an internally splined guide rail of the cylindrical body that contains both the nut and the drive screw. The reciprocating nature of the guide teeth of the nut and the internally splined guide rail of the cylindrical body translate the rotational motion of the drive screw into linear motion of the nut body. The inverted spline rail system is protected from its operating environment by a seal. | 05-30-2013 |
20120213457 | Linear Guide Unit - A linear guide is provided including a carriage configured to ride on a rail for linear motion along an axis of travel. The rail includes a base rail and a pair of side rail portions each coupled to a respective side of the base rail by an attachment portion. The surface of the each of the attachment portions forms an obtuse angle with the surface of the base rail portion. | 08-23-2012 |
20120186374 | LINEAR SLIDE HAVING INTEGRAL CARRIAGE AND NUT ASSEMBLY - A linear slide is provided. The linear slide includes a guide rail, a carriage arrangement and a drive mechanism. The carriage arrangement includes a sidecar or nut arrangement for engagement with a screw of the drive mechanism. The nut arrangement is laterally offset from a carriage of the carriage arrangement. | 07-26-2012 |
20110308066 | Simultaneous Integral Milling Operation Machine - A machining apparatus and method of machining a work piece are provided. The method generally includes machining a plurality of independent surfaces of the work piece as the work piece travels along a work path and through a plurality of machining stations in a single pass. The machining apparatus includes a frame and first and second machining stations mounted to the frame. Each machining station is configured to form an independent surface in a work piece passed through the machining apparatus. The machining apparatus also includes a feed arrangement for feeding the work piece through the apparatus along a feed path and relative to the first and second machining stations and the frame while machining is performed on the work piece. | 12-22-2011 |
20110232216 | BEAM HAVING INTERNAL TENSIONING AND METHODS - A structural support member is provided. The structural support member includes a tensioning mechanism for applying a preload to a beam member of the structural support member. The tensioning mechanism acting on a loading pin causing the beam member to bend. | 09-29-2011 |
20110029911 | Method for Configuring an Actuation System - A method of configuring a linear actuation system that includes establishing a connection via an electronic communication network with a linear actuation system customer, and receiving data that includes customer requirements for a linear actuation system, the data transmitted over the communication network. The method also includes presenting the customer with a series of options, based on the customer requirements, to select components for the linear actuation system, and displaying a scaled representation of the linear actuation system with those components selected by the customer. | 02-03-2011 |
20100260446 | Guide Rail and Method for Manufacturing Same - A guide rail that includes a base rail having a channel therein and at least one finger extending from a portion of the channel. The guide rail further includes a race insert mounted against the at least one finger. In an embodiment of the invention, the race insert has a first and second raceway associated with the at least one finger extending from a portion of the channel. Further, the first and second raceways have different load transmission directions, wherein the load transmission directions of both the first and second raceways are oblique to the direction that the at least one finger extends from a portion of the channel. | 10-14-2010 |
20100239192 | Guide Rail and Method for Manufacturing Same - A guide rail includes a base rail with at least one finger extending from a first portion of the base rail, and at least one finger extending from a second portion of the base rail. A race insert is mounted against the fingers. A first race way is associated with the at least one finger extending from the first portion of the base rail. A second race way is associated with the at least one finger extending from the second portion of the base rail. The first and second race ways have different load transmission directions. The load transmission direction of the first race way is non-parallel to the at least one finger extending from the first portion of the base rail. The load transmission direction of the second race way is non-parallel to the at least one finger extending from the second portion of the base rail. | 09-23-2010 |
20100206670 | Guide Wheel Assembly - A guide wheel assembly for a carriage of a guide system is provided. The guide wheel assembly includes guide wheel and a stud shaft. The stud shaft operably supports the guide wheel for rotation about a guide wheel axis. The stud shaft includes a tool engagement section. The tool engagement section has a generally cylindrical periphery and includes a plurality of angularly spaced apart flats formed in the cylindrical periphery. Adjacent ones of the flats are separated by an arcuate section of the cylindrical periphery. The stud shaft may also include a locating pilot region for locating the stud shaft within a bore of a device to which the guide wheel assembly is mounted. | 08-19-2010 |
20100129013 | Guide Rail Having Base Rail And Gear Rack, Method Of Making Same, Guide Assembly Including Same - A guide rail is provided. The guide rail includes a base rail and a gear rack mounted to the base rail. The guide rail also provides at least one race upon which a guide roller can ride. The guide rail defines a reference point related to the raceway that has a parallelism relative to the gear rack of less than or equal to 0.005 inches per foot along the length of the guide rail. Preferably, the reference point is defined directly by the raceway and the parallelism is less than or equal to 0.001 inches per foot. A method of forming the guide rail is also provided. The method includes machining the reference point into the guide rail and using the reference point to locate machining a seat for mounting the gear rack. A guide assembly including a guide rail and a carriage or frame structure is also provided. | 05-27-2010 |
20100126073 | ACTUATOR FOR ELEVATOR DOORS, ELEVATOR DOOR ARRANGEMENT INCLUDING SAME AND METHODS - A double door actuation system is provided. The actuation system includes a base frame, a drive motor, first and second guide rails and a pair of rail support arrangements. The drive motor is mounted to the base frame and includes a pinion gear rotatable about an axis of rotation. The guide rails include opposed raceways and a gear rack. The gear rack engages the pinion gear opposite sides such that the pinion gear simultaneously drives the guide rails in opposite directions parallel to a drive axis. The rail support arrangements are mounted to the base frame and support guide rails. The rail support arrangements maintain a substantially constant lateral location of the guide rails in a direction perpendicular to both the drive axis and axis of rotation to maintain a substantially constant mesh between the pinion the gear racks. | 05-27-2010 |
20090315238 | Modular Adjustable Vise - A modular adjustable vise is provided. The modular adjustable vise includes a base and a plurality of vise units mounted to the base. The plurality of vise units are spaced apart. Each vise unit includes a pair of jaws movable toward and away from one another to form an adjustable gap therebetween. Each of the vise units are independently adjustable such that the adjustable gap of each vise unit can be adjusted independent of the gap of the other vise units. A method for configuring a vise is also provided that includes machining a clamping surface of a jaw of the vise unit after the jaw has been mounted to the base. | 12-24-2009 |
20090314816 | Material Feed Device - A material feeder apparatus for feeding stock material to a machining device is provided. The material feeder apparatus includes a drive motor, a drive wheel, a guide wheel and a positioning mechanism. The drive wheel is operably coupled for rotation to the drive motor. The guide wheel is spaced apart from the at least one drive wheel defining a stock material slot therebetween. The positioning mechanism is to at least on of the drive wheel and the guide wheel for adjusting the stock material slot defined by the spacing between the at least one guide wheel and the at least one drive wheel. The material feeder apparatus may include both a drive and slave stock material feeder that are daisy chained together for being simultaneously driven by a single drive motor. | 12-24-2009 |
20090285513 | Linear Rail System Having Preload Adjustment Mechanism - A guide carriage assembly that permits adjustment of a relative position of a bearing device, typically a guide wheel, relative to a carriage body is provided. The guide carriage assembly includes a carriage body, at least one support shaft and a guide wheel mounted to the support shaft. The support shaft provides a locating axis about which the support shaft may rotate when mounted to the carriage body. The support shaft further defines an offset bearing axis about which the guide wheel rotates. The offset relationship between the bearing axis and locating axis permits adjustment of the relative position of the guide wheel, or support surface, and the carriage body by rotating the support shaft about the locating axis. The guide carriage assembly may further including locking structure that applies opposing torques about the locating axis to secure the support shaft, and consequently the guide wheel, in the desired location. | 11-19-2009 |
20090145252 | Anti-Backlash Nut, Lead Screw Assembly And Method - A nut for a lead screw assembly, a lead screw assembly and a method for preventing backlash in a lead screw assembly are provided. The nut of the lead screw assembly includes a one-way clutch that permits relative motion of between two nut bodies in a first direction but prevents relative motion in an opposite direction. The one-way clutch preferably includes at least one sprag element that acts between the two nut bodies to permit or prevent relative motion between the two nut bodies of the nut. The lead screw assembly generally incorporates a nut incorporating such a nut. The method generally includes binding the first nut body relative the second nut body to prevent relative motion of the nut bodies in one direction while permitting relative motion in an opposite direction. | 06-11-2009 |
20090127348 | Multifaceted Guide Rail, Guide Assembly And Method Of Forming Guide Assemblies - A guide assembly, a guide rail for a guide assembly, and a method for forming guide assemblies are provided. The guide rail includes a plurality of facets angularly spaced from one another such that guide wheels for use with a guide carriage can ride on the guide rails in varying angular orientations. The guide rail preferably includes a pair of running rails that include at least four facets that extend the longitudinal length of the guide rail. The method includes providing a plurality of identical guide rails and a plurality of different carriages that have different characteristics, such as the orientation at which the guide wheels of the carriages engage the guide rails. | 05-21-2009 |
20090126521 | Nut With Flexible Gripping Fingers And Apparatus - A nut and lead screw assembly that includes a nut are disclosed. The nut includes at least one flexible finger for adjusting the engagement of a threaded portion of the nut with corresponding threads of a lead screw. The threaded portion is preferably formed of a different material than the flexible finger. The material of the threaded portion is preferably of a lower coefficient of friction than the flexible finger. The nut also includes an adjustment mechanism that adjust the radial position of the flexible finger and also the threaded portion. A preferred adjustment mechanism includes a spring finger that provides a radially extending biasing load to a free end of the flexible finger to adjust the position of the flexible finger. The adjustment mechanism more preferably includes a an adjustment member that adjusts the radial load provided by the spring finger. | 05-21-2009 |
20090080816 | Bearing Assembly And Method Of Making A Bearing Assembly - A method of making a bearing assembly and a bearing assembly is provided. The method includes the steps of extruding a support rail, providing a mounting surface on the support rail, mounting a bearing rail on the mounting surface and machining a bearing surface on the bearing rail. The bearing assembly includes an extruded support rail and a bearing rail. The bearing rail is of a harder material than the material of the support rail to which the bearing rail is mounted. The bearing rail further provides a machine polished linear contact. | 03-26-2009 |
20080247693 | Snap-In Bearing Insert - An improved sliding bearing apparatus and method utilize a snap-in polymer bearing insert having one or more identically shaped locking lugs, each of which are configured for locking engagement with a corresponding depression in a bearing housing, to thereby lock the bearing insert in place against relative movement either radially or axially with respect to the bearing housing. In a free-standing state, the insert may have a variety of shapes including cylindrical, non-cylindrical, or be flat and planar. An insert for a closed bearing is configured such that it may be trimmed to form an insert for an open bearing. | 10-09-2008 |
20080247692 | Extrudable Polymer Bearing Insert - A bearing insert, apparatus, and method use a bearing insert of polymer material, defining a longitudinal axis along which the bearing insert may be net-shape-formed by extrusion. Arrangements and methods are also provided for retaining the extrudable bearing insert within either open or closed bearing housings. | 10-09-2008 |
20080245641 | Tamper-Proof Roller Mounting Arrangement and Method - A roller-guided track apparatus is provided. The roller-guided track apparatus includes a support member and a track roller arrangement. The track roller arrangement includes an axle and a roller, with the axle having first and second axial ends thereof. The first axial end of the axle is attached to the support member in such a manner that the second axial end of the axle forms a distal end of the axle projecting away from the support member. The roller defines an inner side of the roller and an outer side of the roller and has an aperture formed therethrough configured for receiving the axle. The axle passes through the aperture of the roller such that the roller is rotatable about the axle, the inner side of the roller faces the support member, and the distal end of the axle extends beyond the outer side of the roller. The distal end of the axle is orbitally deformed to form a head for retaining the roller upon the axle. | 10-09-2008 |