Elastomer Or Plastic Patents (Class 384/536)
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Patent number: 5511887Abstract: A tubular portion of the adaptor has a non-cylindrical outer surface to be received within an inner bearing ring bore and a non-cylindrical inner surface to receive a non-cylindrical shaft. Flanges are directed substantially radially outwardly from the tubular portion at the adaptor ends to engage the end surfaces of the inner bearing ring. Slots distributed along the perimeter of at least one adaptor end and extending longitudinally through the flange and part of the tubular portion form a plurality of retention fingers. The retention fingers may bend radially inwardly and outwardly to permit insertion into the inner bearing ring and to accommodate dimensional variation of the non-cylindrical bore and the non-cylindrical shaft.Type: GrantFiled: June 30, 1995Date of Patent: April 30, 1996Assignee: The Torrington CompanyInventor: Walter P. Waskiewicz
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Patent number: 5501531Abstract: A Cardan shaft bearing is disclosed in which the outer ring of an antifriction bearing and a retainer ring are connected together by a rubber ring which is vulcanized in place. The outer ring and the retainer ring rest with radial elasticity against each other. The rubber ring has a U-shaped profile which is open parallel to the axis of the Cardan shaft bearing. The rubber ring is fixed on the outer ring and on the retainer ring at least in part on the axial ends of these rings. The inner ring of the antifriction bearing is provided with rubberizing on the side facing the shaft.Type: GrantFiled: May 11, 1994Date of Patent: March 26, 1996Assignee: Firma Carl FreudenbergInventor: Arno Hamaekers
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Patent number: 5492418Abstract: An intermediate bearing (8) for a multi-component propeller shaft of a motor vehicle has a housing (9) which serves to receive a resilient bearing member (22) which, in turn, accommodates a sealed rolling contact bearing (37). To hold the bearing member (22) in the housing (9), a carrier (41) is provided which includes retaining tabs (44) which serve to retain the carrier (41) in the housing (9). Furthermore, the carrier (41) includes securing tabs (45) which axially hold the bearing member (22). The carrier may be connected to the housing (9) by a bayonet fixing mechanism. Furthermore, for securing purposes, a plate metal tab (50) is provided which is secured to the housing (9) by beading. The intermediate bearing is easy to assemble and its bearing member is secured against axial displacement.Type: GrantFiled: August 9, 1994Date of Patent: February 20, 1996Assignee: GKN Automotive AGInventor: Jean-Claude Brossard
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Patent number: 5482383Abstract: There is disclosed a bearing for mounting on a multi-sided shaft having an outer race and an inner race coaxial with and rotatable relative to the outer race. The inner race is formed with a central bore having a plurality of internal corners which accommodate a multi-sided shaft. The central bore is preferably adapted to accommodate hexagonal and square shafts. The central bore has at least one circumferential groove in the bore and an elastomeric ring mounted into the groove. The grooves are formed at such depth that the elastomeric ring is exposed at the internal corners of the central bore whereby when the bearing is mounted the elastomeric material will contact the shaft and dampen the relative motion between the bearing and the shaft.Type: GrantFiled: December 16, 1994Date of Patent: January 9, 1996Assignee: The Torrington CompanyInventors: Michael A. Gantt, John A. Larson
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Patent number: 5463861Abstract: The invention relates to a friction false twist unit for crimping synthetic filament yarns, the friction element shafts of which are movable with a radial play, and which are influenced in their movement by friction dampers.Type: GrantFiled: August 9, 1993Date of Patent: November 7, 1995Assignee: Barmag AGInventor: Hellmut Lorenz
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Patent number: 5452957Abstract: A center bearing assembly includes a roller bearing adapted to receive and rotatably support a coupling shaft and a bracket adapted to be secured to a vehicle frame. A support member is provided which supports the roller bearing within the bracket. The support member includes a bladder formed of an elastomeric material. The bladder contains a rheological fluid which exhibits a significant change in its ability to flow or shear upon the application of an appropriate energy field. Preferably, the bladder contains a magneto-rheological magnetic fluid. By varying the power supplied to an electromagnet located adjacent the bladder, the vibration dampening characteristics of the support member may be varied depending upon the operating conditions of the vehicle.Type: GrantFiled: November 22, 1994Date of Patent: September 26, 1995Assignee: Dana CorporationInventor: James A. Duggan
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Patent number: 5407282Abstract: A single-thrust bearing is disclosed. The bearing includes a rolling-contact bearing having an inner ring and an outer ring, as well as a thrust ring concentrically surrounding the outer ring of the rolling-contact bearing with radial clearance. The outer ring and the thrust ring are braced against one another by an intermediate ring of rubber-elastic material that is formed by at least two web members, which are distributed in the circumferential direction and are separated by a circumferential clearance. The design of the web members is such that they are inclined with an involute shape in the same direction of rotation.Type: GrantFiled: September 1, 1993Date of Patent: April 18, 1995Assignee: Firma Carl FreudenbergInventors: Karl-Heinz Bade, Michael Schutz
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Patent number: 5314255Abstract: A bearing includes two hollow cylindrical prop rings coaxially surrounding a central axis. A bellows element formed from a thermoplastic elastomer material elastically couples the prop rings in the radial direction. The bellows element has a radially extending profile that includes at least one fold protruding in the axial direction. The bellows element also has an axial length that does not overlap the axial length of said prop rings. At least one bumper is provided axially outside the axial length of the fold. The bumper has a profile that radially extends, during normal operational use, from at least one of the prop rings in the direction of the other prop ring. The bumper and the fold partially overlap.Type: GrantFiled: December 2, 1992Date of Patent: May 24, 1994Assignee: Firma Carl FreudenbergInventor: Hans-Werner Schwerdt
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Patent number: 5309529Abstract: A bearing arrangement for a bearing seat for a radial bearing adapted to be disposed in an acceleration-proof gyroscope, on which a brief acceleration produced forces act perpendicularly to a rotational axis of the gyroscope. The bearing seat includes a cylindrical half shell, with a longitudinal center axis of the cylinder of the half shell coinciding with a rotational axis of the radial bearing, and with an open side of the half shell facing in a direction in which the acceleration forces act on the radial bearing. An elastic element urges or biases a support ring into the half shell with a preset force, with the elastic element having a spring characteristic such that the support ring and the radial bearing may be lifted out of the half shell when a predetermined acceleration is exceeded.Type: GrantFiled: December 11, 1992Date of Patent: May 3, 1994Assignee: Deutsche Aerospace AGInventor: Ernst Gruber
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Patent number: 5295744Abstract: A resilient central bearing such as for a propeller shaft for motor vehicle drives, having a roller bearing held in a housing which is disclosed and claimed. A bracket for being secured to the motor vehicle body holds the bearing. The inner bearing race of the roller bearing is associated with a carrying ring having resilient member for receiving the shaft to be supported.Type: GrantFiled: April 8, 1993Date of Patent: March 22, 1994Assignee: GKN Automotive AGInventors: Miloslav Petrzelka, Werner Hoffmann
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Patent number: 5286118Abstract: A journal including a cap engaged on a head tube of the bicycle, a bowl rotatably engaged on the cap, a nut engaged on the bowl, a sleeve extended downward from the nut and an annular notch formed in the lower portion of the nut, two elastomeric rings engaged in the annular notch of the nut, one of the rings engaged between the nut and the bowl, and the other ring engaged between the sleeve and the bowl in order to absorb shocks and vibrations transmitted to the journal.Type: GrantFiled: June 4, 1992Date of Patent: February 15, 1994Inventor: Yi Chen Chi
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Patent number: 5247855Abstract: An improved rolling element bearing assembly is provided which is particularly applicable for use in gas turbine engine gearboxes. The rolling element bearing includes an inner ring mounted to a rotatable shaft and an outer ring mounted to a stationary structure. The inner and outer rings define a raceway for a plurality of rolling elements. The rolling element bearing assembly includes the bearing and a compliant anti-rotation ring compressed between the bearing outer ring and the stationary structure. The compliant ring provides improved frictional engagement and improved bearing damping between the bearing outer race and the stationary structure preventing outer ring rotation within the stationary housing.Type: GrantFiled: March 10, 1992Date of Patent: September 28, 1993Assignee: Allied Signal Inc.Inventors: Charles J. Alten, Nagaraj K. Arakere
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Patent number: 5193917Abstract: A rolling bearing, in particular for steering columns of automotive vehicles, comprising rolling elements in the form of balls arranged between an inner ring and another ring, and a tolerance ring made of a polymeric material which is at least partially surrounded by the inner ring and is pressed axially against the inner ring in the direction of the balls by a spring, characterized in that the spring (7, 17) is made of a polymeric material.Type: GrantFiled: April 30, 1992Date of Patent: March 16, 1993Assignee: INA Walzlager Schaeffler KGInventors: Hellmut Adler, Alexander Zernickel
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Patent number: 5172985Abstract: A multidirectional propeller shaft bearing is disclosed which includes a body made of two die-stamped plates, the first being provided with a cylindrical box having an anchoring flange on one side and the opposite side has an attached, welded and equally shaped other flange made by the plate itself. In addition, within the cylindrical part, an equally cylindrical rubber part is housed, the inside diameter of which includes a core of harder material which is provided with a grease nipple. The core of harder material provides an inner housing for a conventional bearing so that any type of propeller shaft may be accurately passed therethrough, with multidirectional springiness being provided by the rubber part whose outside diameter forms a flange or collar shaped so as to fit closely against the anchoring flange and so that it may be affixed thereto by means of an equally shaped, die-stamped plate, attached by means of nuts and bolts, in an arrangement that resembles a sandwich.Type: GrantFiled: January 3, 1992Date of Patent: December 22, 1992Assignee: Industria E Commercio de Auto Pecas Rei LtdaInventor: Silvio J. C. Constancio
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Patent number: 5161903Abstract: An intermediate bearing support for a drive shaft of a vehicle is required when three or more universal joints are embodied in a driveline between a transmission and a differential. Special bearings of particular dimensions and having wider inner races than outer race have heretofore been employed for this particular application. Such bearings are substantially more costly than standard ones. The new drive shaft support uses standard bearings with special adapter components for use with the supports. The adapter components include special adapter rings located between the inner race of the bearing and the shaft being supported. In most instances, adapter rings are also located around the outer race between the outer race and a grease retainer and rubber mounted block of the support.Type: GrantFiled: October 3, 1990Date of Patent: November 10, 1992Assignee: The Zeller CorporationInventor: Gary L. March
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Patent number: 5159166Abstract: The drawroll unit has a heatable galette in which the shaft of the gallette is mounted in bearings which, in turn, are mounted via vibration damping devices in a stationary housing. The vibration damping devices may be in the form of bodies of interlaced wire, O-rings or the like. The vibration damping devices serve to damp vibrations of the shaft in a critical speed range within the normal speed range of the rotor so that the galette can be operated at any speed within the normal speed range.Type: GrantFiled: June 28, 1989Date of Patent: October 27, 1992Assignee: Rieter Machine Works, Ltd.Inventors: Vittorino Arnosti, Konrad Boos, Bruno Gemperle, Felix Graf, Rodolf Leinhard, Emil Munz, Richard Rollin, Rolf Widmer, Armin Wirz
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Patent number: 5127218Abstract: A textile spindle for treating textile or the like, the spindle including a shaft driven by an individual motor. The rotor of the motor is on the shaft. A double row bearing includes an inner ring on the shaft. An outer ring of the bearing is supported in the spindle housing by two axially spaced apart rubber/metal elements. Two additional elastic damping elements attach the spindle housing to a spindle bearing plate. The motor stator is supported in a motor housing attached stationary with the spindle housing.Type: GrantFiled: July 3, 1990Date of Patent: July 7, 1992Assignee: Fag Kugelfischer Georg SchaeferInventors: Manfred Schiesser, Edwin Hey, Gunter Oppel, Gunther Schmitt, Wolfgang Schmucker
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Patent number: 5125755Abstract: A tolerance ring made of polymeric material arranged between a radial rolling bearing and a seating on a shaft or in the bore of a housing, wherein the tolerance ring bears against a radially directed surface of the seating on the shaft or housing bore in at least one axial direction and comprises a radially directed surface against which a bearing ring of the rolling bearing bears in the same axial direction with an end face, characterized in that the radially directed surface of the seating and the end face of the bearing ring do not overlap radially which avoids axial overloading.Type: GrantFiled: January 21, 1992Date of Patent: June 30, 1992Assignee: INA Walzlager Schaeffler KGInventors: Hellmut Adler, Alexander Zernickel
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Patent number: 5100217Abstract: The proposed wheel bearing has a hub 1 mounted on the preferably integral bearing shaft 4 of a wheel part 5. The hub 1 rotates on a ball bearing arrangement 2. The ball bearing inner ring or rings 3 are stressed via a washer 10 against a shoulder 6 on the bearing shaft 4. In order that the bearing shaft 4 can take greater operational forces the bearing shaft 4 has an axial bore 7, which accommodates a draw bolt 8 screwed into a plastics sleeve 13 so as to prestress the inner ring or rings 3. In this way the securing of the assembly avoids tensile stress in the shaft 4.Type: GrantFiled: February 20, 1991Date of Patent: March 31, 1992Assignee: Georg Fischer AGInventors: Fritz Mahnig, Edgar Becker
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Patent number: 5078510Abstract: A two-piece bearing isolator assembly for mounting roller or ball bearing races to a mounting structure for journalling a shaft. An outer Z-shaped metallic ring has outwardly and inwardly extending flanges on opposite axial margins. The outward flange retains the ring axially in a mounting structure; whereas, the inner flange retains plastic energy absorbing pads receiving the outer race, in line-to-line contact, of a bearing to be mounted. In one embodiment separate pads are disposed in circumferentially spaced apertures in the metallic ring. In another embodiment, separate pads are spaced circumferentially about an integrally formed plastic ring received in the metallic ring. The inner flange also serves as a stop for limiting radial movement of the bearing with respect to the mounting structure.Type: GrantFiled: August 27, 1990Date of Patent: January 7, 1992Assignee: Eaton CorporationInventors: John J. Bair, Edward J. Bantz, Gerald D. Damon
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Patent number: 5062721Abstract: A sleeve for supporting a rolling bearing comprising a metal core with a high degree of dimensional elasticity to produce a larger radial thickness in the free state, and a cylindrical synthetic resin spacer section laminated with the core, so that the sleeve can follow up the increase of the size of the space in which the sleeve is accommodated.Type: GrantFiled: April 27, 1990Date of Patent: November 5, 1991Assignee: Nippon Seiko Kabushiki KaishaInventor: Moichi Chiba
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Patent number: 5059041Abstract: A bearing is provided with a rolling element interposed between an outer ring and an inner ring thereof. The outer ring of the bearing is formed by integrating three elements, a metallic outer ring body having a path of rotation for the rolling elements, an insulating thin film made of a polymer elastic material having an electrical insulating property and covering a portion where the outer ring body is mounted to a housing, and a thin metallic plate provided on an outer surface of the insulating thin film.Type: GrantFiled: September 11, 1990Date of Patent: October 22, 1991Assignees: Railway Technical Research Institute, Bando Chemical Industries, Ltd.Inventors: Tomoki Watanabe, Yukio Nitta, Kouichi Sato, Yoshiya Fuse, Koji Kinoshita
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Patent number: 5048980Abstract: The bearing housing has a ring which is molded within the housing and is in front of a leading face of the outer race. The ring molded in the housing restricts diametrical expansion of that portion of the housing which is forward of the leading face of the outer race.Type: GrantFiled: November 19, 1990Date of Patent: September 17, 1991Assignee: The Torrington CompanyInventor: Thorn W. Dickinson
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Patent number: 5044785Abstract: An integrally formed annular plastic bearing isolator for ball and tapered roller bearings journalling power transmission shafts. The isolator has a plurality of circumferentially spaced energy absorbing pads extending radially from the inner periphery thereof. The inner surface of the energy absorbing pads are at least an interference fit with the outer bearing race and have a predetermined radial spring rate for absorbing bearing movement. A plurality of circumferentially spaced stop pads alternate with the energy absorbing pads and are spaced radially from the outer race to permit limited radial compression of the energy absorbing pads. For tapered roller bearings a plurality of radially inwardly extending circumferentially spaced tabs each having axially extending pads thereon are provided for absorbing axial movement of the outer race.Type: GrantFiled: June 18, 1990Date of Patent: September 3, 1991Assignee: Eaton CorporationInventors: John J. Bair, Edward J. Bantz, Gerald D. Damon
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Patent number: 5044784Abstract: A bearing isolator having an outer metal mounting ring adapted for attachment to a mounting structure, an inner metal mounting ring, adapted for registration on the outer race of a bearing for journalling a shaft, and an energy-absorbing ring of composite material radially intermediate the metal rings. A first plurality of relatively short spokes extends between the composite ring and the outer metal ring; and, a second plurality of relatively short spokes extends between the composite ring and the inner metal ring and is circumferentially staggered from the first plurality of spokes. Resilient wave-like radial deflection of the composite ring occurs between the spokes to absorb vibration and acoustic energy.Type: GrantFiled: July 31, 1990Date of Patent: September 3, 1991Assignee: Eaton CorporationInventor: Bohdan Lisowsky
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Patent number: 5033875Abstract: A support bearing of a rotary shaft, of the type comprising an inner ring (12) and an outer ring (10) coaxial with one another and elastic connecting strips (14a, 14b) between the two rings.The connecting strips comprise a series of first elastic strips (14a) which connect a first edge (10a) of the outer ring (10) to an axially opposite first edge (12a) of the inner ring (12), in such a way that the mid-plane of each of the first strips (14a) forms a first angle (A) with the axis (X--X) common to the two rings, and a series of second elastic strips (14b) which connect the second edge (10b) of the outer ring (10) to the second edge (12b) of the inner ring (12), in such a way that the mid-plane of each of the second strips forms a second angle (B) with the common axis (X--X).The invention is used particularly for supporting a motor-vehicle transmission shaft.Type: GrantFiled: November 2, 1989Date of Patent: July 23, 1991Assignee: Glaenzer SpicerInventor: Francois Moulinet
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Patent number: 5020924Abstract: The bearing unit comprises a plurality of bearing elements rotatable relative to each other. A shell encircles the plurality of bearing elements. A body of resiliently compressible material is located between the shell and the plurality of bearing elements and possesses a predetermined compressibility. This body of resiliently compressible material retains the plurality of bearing elements relative to the shell and permits free adjustment of the plurality of bearing elements relative to the shell within limits determined by the predetermined compressibility of the resiliently compressible material.Type: GrantFiled: January 19, 1989Date of Patent: June 4, 1991Assignee: Rieter Machine Works, Ltd.Inventors: Robert Demuth, Walter Hefti, Urs Keller, Daniel Hanselmann
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Patent number: 4974973Abstract: A separate crankshaft bearing sleeve which in situ surrounds the crankshaft bearings in a combustion engine. The sleeve consists of a ring-shaped part as well as a disc-shaped part (22, 21). The ring-shaped part encircles the roller bearing (17) in the bearing seat in the crankcase end wall and the disc-shaped part incorporates a sealing ring (25) with lips (26, 27) sealingly engaging the crankshaft.Type: GrantFiled: January 31, 1990Date of Patent: December 4, 1990Assignee: Aktiebolaget ElectroluxInventor: Rolf G. Janeke
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Patent number: 4960334Abstract: A support for rotatbly supporting a portion of a shaft, specifically a drive shaft of a vehicle, is disclosed. An intermediate drive shaft support is required when three or more universal joints are embodied in a drive line between a transmission and a differential of the vehicle. An intermediate drive shaft is sufficiently long that it tends to bend or whip to an objectionable extent. The shaft support features a simplified, lower-cost bearing having fewer rolling elements in the form of balls or rollers between inner and outer races, there being from three to six and preferably four. Two rings are located on the sides of the rolling elements to uniformly circumferentially space the elements and can also provide lubricant seals. Each of the rings has a plurality of uniformly-circumferentially spaced recesses in which portions of the rolling elements are received.Type: GrantFiled: March 2, 1989Date of Patent: October 2, 1990Assignee: The Zeller CorporationInventor: Philip J. Mazziotti
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Patent number: 4957013Abstract: A spindle drive for a coordinate measuring machine, wherein a spindle nut which is fastened within a receiving member is seated on a driven threaded spindle. Intermediate the receiving member and a retaining member, the spindle is fixedly connected with a component which is to be driven, through the interposition of roll bodies for producing a compensating clearance radially relative to the spindle axis and a compensating or equilibrating for wobbling motions of the spindle.Type: GrantFiled: August 15, 1989Date of Patent: September 18, 1990Assignee: Mauser-Werke Oberndorf GmbHInventors: Heinz Broghammer, Gerhard Band
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Patent number: 4951796Abstract: A self-aligning clutch release bearing and carrier sleeve assembly includes a carrier sleeve which defines a first axis and a bearing adapted to be brought into engagement with rotating clutch fingers or the like of a clutch mechanism, which clutch fingers rotate about a second axis which may not be exactly coincidental with the first axis. The bearing and carrier sleeve assembly is adapted to adjust the rotation orientation of the bearing to coincide with the second axis of rotation of the clutch fingers. This bearing and carrier sleeve assembly comprises: a bearing including a generally annular thrust face for engagement with the clutch fingers and first and second annular raceways having a plurality of bearing elements disposed therebetween, one of the raceways rotating in unison with the thrust face and the other of the raceways being coupled with the carrier sleeve. A mounting arrangement is provided for grippingly engaging the second raceway for mounting the same to the carrier sleeve.Type: GrantFiled: May 30, 1989Date of Patent: August 28, 1990Assignee: Aetna Bearing CompanyInventors: Richard F. Harrington, James Selgrad
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Patent number: 4921229Abstract: A fluid-filled elastic mount for flexibly supporting a vehicle propeller shaft to the vehicle body, having an elastic body interposed between an inner and an outer sleeve. The mount has a pressure-receiving chamber, and a generally arcuate void which extends axially of the sleeves and which is located opposite to the pressure-receiving chamber in the diametric direction of the sleeves. The mount further has a first and a second equilibrium chamber adjacent to the circumferential ends of the pressure-receiving chamber and are partially defined by a first and a second flexible diaphragm. The pressure-receiving chamber communicates with the first and second equilibrium chambers through differently tuned first and second orifice, respectively. An elastic stop is disposed within the pressure-receiving chamber for limiting the relative displacement of the inner and outer sleeves.Type: GrantFiled: September 8, 1989Date of Patent: May 1, 1990Assignee: Tokai Rubber Industries, Ltd.Inventor: Hiroaki Hori
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Patent number: 4909641Abstract: The bearing has an expanded load zone for better distribution of the load among the rollers, if used, or balls, if used, and allows the bearing to perform better under conditions of misalignment. As an example, the bearing may include a non-rotating ring which has an elastomer of non-uniform thickness bonded to it. The non-uniform thickness of the elastomer will cause a bearing race to go out of round when under load to the point that each roller or ball in approximately 180.degree. of the load zone has the same load, thus reducing maximum rolling element stress. Plastic, lead, alloys, or babbitt materials may be used as an alternative to elastomeric material.Type: GrantFiled: August 25, 1988Date of Patent: March 20, 1990Assignee: The Torrington CompanyInventor: Myron R. Mc Kenzie
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Patent number: 4909642Abstract: A shiftable elastic support bearing is described for a vibration damper, which is sloped in transverse and longitudinal direction of the vehicle. This support bearing is used in vehicles with different wheel track widths. It has an outer bearing flange which is arranged in an oblique plane, supports itself at the vehicle body and is held by fastening devices. It comprises a receiving element having an inserted ball bearing, this receiving element being connected by an elastic element. The vibration damper can be fixed by the bearing flange in two spaced positions in bearing receiving devices of the body of vehicles. In the bearing receiving device, the bearing flange with the damper is arranged so that it can be rotated around its center line by an angle of approximately 180.degree.. By means of a ball bearing, which can be shifted in height in the receiving element, the damper, in both positions, is arranged at the same height with respect to the bearing receiving device.Type: GrantFiled: February 6, 1989Date of Patent: March 20, 1990Assignee: Dr. Ing. h.c.F. Porsche AGInventor: Klaus Hoermandinger
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Patent number: 4901014Abstract: Known rotational signal generators for generating signals that correspond to the rotational speed and/or the angle of rotation of a rotatable component part may be connected with the rotatable component part, by means of a coupling or the like. This coupling results in higher space requirements and in an expensive assembly of the rotational signal generator. The rotational signal generator according to the invention is equipped with a hollow shaft and can be fitted onto the rotatable component part. For the compensation of misalignments or the like of the rotatable component part, the rotational signal generator is mounted elastically. The rotational signal generator may be used for measuring the rotational speed, for measuring the angle of rotation, for measuring the length and for similar operations in the fields of driving technology, systems construction, automatization technology and the like.Type: GrantFiled: August 4, 1988Date of Patent: February 13, 1990Assignee: Hohner Elektrotechnik KGInventors: Johannes Riegger, Walter Blochle
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Patent number: 4900165Abstract: A bearing support system providing axial thrust load control of bearing supporting a rotating element, by retaining the bearings with a slotted inner ring and supporting the inner ring with a radially spaced outer ring by means of a plurality of circumferentially spaced supports which are radially stiff but axially flexible.Type: GrantFiled: August 15, 1988Date of Patent: February 13, 1990Assignee: Union Carbide CorporationInventors: Leslie C. Kun, Neno T. Nenov
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Patent number: 4896239Abstract: This invention provides a technique for effectively floating the rotor of a disc drive motor, thereby permitting small motions in the axial (non-critical) direction while maintaining significant stiffness in the radial (critical) direction. This is achieved by providing an electromagnetic actuator including a stepper motor having a housing, a stator located within the housing, and a rotor positionable relative to the stator driving a motor shaft to wind and unwind a band and thereby position the carriage. The drive shaft passes through ball bearings which support the shaft for rotation. The ball bearings themselves fit within an annular end bell portion of the motor housing which defines a channel for the bearing. An injected elastomer forms a tight-fitting ring between the bearings and the internal wall of the end bell, thereby radially supporting the outer race of the bearing.Type: GrantFiled: October 17, 1988Date of Patent: January 23, 1990Assignee: Seagate Technology, Inc.Inventor: Sanjoy Ghose
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Patent number: 4865470Abstract: An intermediate bearing support for a drive shaft of a vehicle is set forth. An intermediate drive shaft support is required when three or more universal joints are embodied in a drive line between a transmission and a differential. The new drive shaft support is more compact, uses fewer parts which is brought about in part by the use of symmetrical designs, and is easier to assemble on a drive shaft. Bearing shields or flingers of the support are mounted on the drive shaft adjacent a bearing of the support so that the shields do not have to be specially designed to fit particular drive shafts. For replacement purposes, one replacement kit can be used to rebuild a number of different drive shaft bearing supports.Type: GrantFiled: October 24, 1988Date of Patent: September 12, 1989Assignee: The Zeller CorporationInventor: Philip J. Mazziotti
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Patent number: 4856374Abstract: In known combinations of a planetary gear transmission with a continuously variable friction drive transmission, unsatisfactory accuracy in operation and excessive overall dimensions are found to be disadvantageous.The transmission according to the invention comprises a planetary gear transmission (11) operatively connected to a continuously variable friction drive transmission (12) with spherical rolling members (19).The transmission according to the invention is finely or infinitesimally adjustable over a wide range of positive or negative transmission ratios and particularly suitable for employ in a closed control system.Type: GrantFiled: February 26, 1988Date of Patent: August 15, 1989Assignee: planetroll Antriebe GmbHInventor: Hubert Kreuzer
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Patent number: 4854751Abstract: An antifriction bearing, in which the outer ring is supported in the bore of a rotating machine part and secured by a retaining ring against axial displacement. The retaining ring is snapped into a circumferential groove of the bore and is supported, freely movable towards the outside in the radial direction, in the axial direction on the side of a conical surface facing away from the inner ring. By this structure, the axial contact pressure of a gasket of a polymeric material, which is disposed between the retaining ring and the radial antifriction bearing, and which bridges the gap between the outer ring and the inner ring of the antifriction bearing, increases as the rotational speed increases.Type: GrantFiled: May 10, 1988Date of Patent: August 8, 1989Assignee: Firma Carl FreudenbergInventors: Volker Grassmuck, Benno Jorg, Eberhard Sommer
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Patent number: 4854437Abstract: A self-aligning clutch release bearing and carrier sleeve assembly includes a carrier sleeve which defines a first axis and a bearing adapted to be brought into engagement with rotating clutch fingers or the like of a clutch mechanism, which clutch fingers rotate about a second axis which may not be exactly coincidental with the first axis. The bearing and carrier sleeve assembly is adapted to adjust the rotation orientation of the bearing to coincide with the second axis of rotation of the clutch fingers. This bearing and carrier sleeve assembly comprises: a bearing including a generally annular thrust face for engagement with the clutch fingers and first and second annular raceways having a plurality of bearing elements disposed therebetween, one of the raceways rotating in unison with the thrust face and the other of the raceways being coupled with the carrier sleeve. A mounting arrangement is provided for grippingly engaging the second raceway for mounting the same to the carrier sleeve.Type: GrantFiled: November 10, 1987Date of Patent: August 8, 1989Assignee: Aetna Bearing CompanyInventors: Richard F. Harrington, James Selgrad
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Patent number: 4852230Abstract: A freerunning roller for use in a roller conveyor system comprises a cylindrical tube having saw cut ends providing a rough edge on each end which is relied upon to effect frictional interengagement with a relatively soft plastic cup dimensioned for force fitting into the tube and also dimensioned internally to receive a ball bearing in force fitted relation. The bearing assembly is completed by a bushing which is force fitted into the bearing and also has a hexagonal bore for receiving a hexagonal shaft by which the roller is mounted in a conveyor frame.Type: GrantFiled: April 4, 1988Date of Patent: August 1, 1989Assignee: The Buschman CompanyInventor: Thomas C. Yu
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Patent number: 4848938Abstract: A ring-shaped machine part of relatively hard material with an essentially cylindrical seating surface which has at least one ring-shaped milled section on which a machine part of relatively soft material with a corresponding seating surface can be seated coaxially in a form-locking manner. The milled section is provided on at least one axial end of the hard machine part and extends, starting from the cylindrical seating surface, to the end surface.Type: GrantFiled: October 9, 1987Date of Patent: July 18, 1989Assignee: SKF GmbHInventors: Roland Haas, Manfred Brandenstein, Gerhard Herrmann, Karl Thurn
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Patent number: 4848686Abstract: A tube-supporting cradle mechanism for a filament, especially a yarn or thread take-up system is provided with a resiliently deformable body enabling relative adjustment of relatively rigid parts which adjoin the resiliently deformable body in order to permit line contact between a bobbin tube or its package wound thereupon, which is supported by the cradle, and a friction drive roll.Type: GrantFiled: December 18, 1986Date of Patent: July 18, 1989Assignee: Rieter Machine Works Ltd.Inventors: Robert Demuth, Walter Hefti, Urs Keller, Daniel Hanselmann
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Patent number: 4796722Abstract: A drive shaft apparatus for transverse engine vehicles including an opening portion formed in a bracket in the radial direction into which a pressing mechanism with an elastic body is fitted from the outside of the bracket, thereby pressing the outer peripheral surface of a bearing against the inner peripheral surface of a through hole which is formed in the bracket.Type: GrantFiled: January 29, 1987Date of Patent: January 10, 1989Assignee: Toyota Jidosha Kabushiki KaishaInventor: Tadanobu Kumagai
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Patent number: 4746231Abstract: A bearing device for small rotary machinery having such a construction that a cylindrical bearing having therein a ball bearing is housed in a housing, made of a synthetic resin, for rotatably holding a rotating shaft having a rotor, in which a cap having a flange portion is interposed between the housing and the bearing to stably retain the rotating shaft.Type: GrantFiled: September 28, 1987Date of Patent: May 24, 1988Assignee: Mabuchi Motor Co., Ltd.Inventor: Michio Hoshino
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Patent number: 4742902Abstract: A clutch release bearing and bearing carrier assembly comprising a bearing support flange at one end of a carrier member, the bearing support flange having elastically outwardly spreadable fingers or lugs with a retaining ledge or shoulder at their end for holding a clutch throw-out bearing against the flange by snap fit. The carrier member has a peripheral groove, preferably in the form of a pair of parallel flanges disposed at the other end of the carrier member, the opposite ends of the pins of a clutch control fork being engageable in the groove for abutment against a longitudinal wall in the groove and for snap fit between that longitudinal wall and at least one deflectable projection on an inner wall of the groove.Type: GrantFiled: March 1, 1984Date of Patent: May 10, 1988Assignee: Automotive Products plcInventor: Keith V. Leigh-Monstevens
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Patent number: 4739867Abstract: A self-aligning clutch release bearing and carrier sleeve assembly includes a carrier sleeve which defines a first axis and a bearing having a generally annular thrust face adapted to be brought in engagement with rotating clutch fingers or the like of a clutch mechanism, which clutch fingers are rotating about a second axis which may or may not be coincidental with said first axis. The bearing and carrier sleeve assembly is adapted to adjust the rotational orientation of the bearing to coincide with the second axis of rotation, and comprises a bearing including a radially inwardly extending shoulder portion which terminates at a position radially spaced apart from the carrier sleeve.Type: GrantFiled: June 30, 1986Date of Patent: April 26, 1988Assignee: Aetna Bearing CompanyInventor: Richard F. Harrington
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Patent number: 4722618Abstract: A center bearing supporting device adapted to support a center bearing mounted on a propeller shaft in the vicinity of a joint section. The center bearing supporting device consists of an annular elastic insulator connecting an inner tube mounted on the center bearing and an outer tube connected to a vehicle body. The intermediate major section of the insulator bends in its axial direction along its whole periphery to form an annular projection coaxial with the center bearing. The inner surface of the intermediate major section defines an annular groove. Additionally, an elastomeric stopper is secured to the center bearing and located contactable with the insulator. At least a part of the outer peripheral section of the stopper is inserted into the insulator annular groove.Type: GrantFiled: September 19, 1986Date of Patent: February 2, 1988Assignee: Nissan Motor Co., Ltd.Inventors: Shuji Matsumoto, Takashi Tsutsumi
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Patent number: 4718781Abstract: The invention concerns ball bearings which automatically take up play, are self-centering and self-adaptable to the stress. The bearing comprises an inner ring (1), an outer ring in two parts (2a, 2b), balls (3), an elastically yieldable element (4) and a case (5). One of the rings is formed of two parts (2a, 2b) which are relatively movably fitted together and some of the four rolling raceways along which the balls roll have set-back depressions arranged along their circumference. Application in particular in the automobile industry.Type: GrantFiled: February 3, 1987Date of Patent: January 12, 1988Assignee: NadellaInventor: Stephan Gerard