Nonmetallic Part Patents (Class 403/130)
  • Patent number: 11549552
    Abstract: A ball joint includes an outer race having an exterior surface extending from an outer axial end to an inner axial end thereof and having an interior that has an opening proximate the outer axial end. The ball joint includes a ball with a stem extending therefrom. The ball is disposed in the interior area with the stem extending out of the opening. The ball joint has an anti pull-out collar disposed around the outer race and located entirely beyond a center point of the ball towards the outer axial end of the outer race. The anti pull-out collar has a radial thickness configured to prevent radial expansion of the outer race.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: January 10, 2023
    Assignee: Schaublin SA
    Inventors: Chris Wilhelm, Girolamo Toscano
  • Patent number: 11415213
    Abstract: Apparatus and method for promptly repairing the shift cable end in various motor vehicles. The prompt repair of the shift cable end in various motor vehicles without the replacement of the entire shift cable apparatus is accomplished using a specialized hushing made to fit securely within the shift cable and engage the shift lever, thus operably coupling the shift lever and shift cable end. In particular embodiments, a drilling tool is used to enlarge the coupling aperture within the shift cable end and a specialized bushing is inserted into the shift cable end. The bushing has a coupling means to simulate the factory installed coupling mechanism and an alignment and securing means for maintain the bushing's alignment and securing it within the shift cable end. The shift lever is then inserted into the bushing.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: August 16, 2022
    Inventor: Loring Smith
  • Patent number: 9827072
    Abstract: Method of assembling a distalizer comprising a mesial element and a distal element, and an arm connecting the distal element with the mesial element, the arm comprising a ball member at one end of the arm and the distal element comprising a receptacle for receiving said ball member, the method comprising providing the distal element with an opening of the receptacle that is large enough to introduce the ball member substantially without deformation, providing the arm with the ball member, introducing the ball member into the receptacle, and reducing the opening of the receptacle. The disclosure further relates to a distalizer obtainable by such a method.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: November 28, 2017
    Assignee: ORTHODONTIC RESEARCH AND DEVELOPMENT, S.L.
    Inventor: Luis Carriere Lluch
  • Publication number: 20130272776
    Abstract: Provided is a ball joint having excellent wear resistance, corrosion resistance, and stability of sliding characteristics. A ball joint (1) according to the present invention includes: a ball stud (10) with a spherical surface section (11); and a resin seat (20) which holds and allows free rotation of the spherical surface section (11), wherein an amorphous hard carbon film with a hardness of 6 to 39 GPa is formed on the surface of the spherical surface section (11). In addition, in the ball joint (1) according to the present invention, the amorphous hard carbon film (DLC film) (12) preferably has a root mean square roughness of 60 nm or less. The resin seat (20) is preferably made of polyacetal, nylon, polyamide, polytetrafluoroethylene, polyether ether ketone, an elastomer, or a fiber-reinforced composite thereof.
    Type: Application
    Filed: December 5, 2011
    Publication date: October 17, 2013
    Applicant: HONDA MOTOR CO., LTD
    Inventor: Kentaro Komori
  • Publication number: 20130004233
    Abstract: The present disclosure relates to a ball joint unit, the unit including a ball member, a plurality of lubricant reception recesses formed on a surface of the ball member, each having a predetermined depth, a rod member connected to a first element to be integrally formed with the ball member, and a retainer connected to a second element and formed with a spherical ball member receptor corresponding in shape to the ball member, wherein the lubricant is accommodated and coated in an interior of the lubricant recesses and a surface of the ball member.
    Type: Application
    Filed: May 15, 2012
    Publication date: January 3, 2013
    Applicant: LG Innotek Co., Ltd.
    Inventor: Suhyoung Lee
  • Patent number: 7841799
    Abstract: A ball pivot (3) of a ball and socket joint for a motor vehicle, with a pivot (2) and with a joint ball (1) connected thereto. A recess (12) with a magnet (13) arranged therein is provided in the ball pivot (13). An intermediate space (17), which is filled with a nonmagnetic material (16) for fixing the magnet (13), is formed between the jacket surface (14) of the magnet (13) and the inner wall (15) of the recess (12).
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: November 30, 2010
    Assignee: ZF Friedrichshafen AG
    Inventors: Joachim Spratte, Michael Klank
  • Publication number: 20080124167
    Abstract: A ball pivot (3) of a ball and socket joint for a motor vehicle, with a pivot (2) and with a joint ball (1) connected thereto. A recess (12) with a magnet (13) arranged therein is provided in the ball pivot (13). An intermediate space (17), which is filled with a nonmagnetic material (16) for fixing the magnet (13), is formed between the jacket surface (14) of the magnet (13) and the inner wall (15) of the recess (12).
    Type: Application
    Filed: February 7, 2008
    Publication date: May 29, 2008
    Inventors: Joachim SPRATTE, Michael KLANK
  • Patent number: 7281695
    Abstract: A pivotable suspension element includes a support member having a part-spherical bearing surface clamp element and a body portion, the body portion having an integral formation of a slot to receive a part of a component to which the pivotable suspension element may be secured; a locator formation for the clamp element whereby, in use, the clamp element may be operated to clamp a flange in the slot; a part-spherical seat, and a through-passage extending through the body from the part-spherical seat, wherein the curvature of the part-spherical seat of the body portion corresponds substantially with that of the bearing surface of the support member and wherein the cross-sectional size of the through-passage increases in a direction away from the part-spherical seat.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: October 16, 2007
    Assignee: Access Technologies Limited
    Inventor: Matthew Edward Jordan
  • Patent number: 7249893
    Abstract: A rolling bearing and a rod end bearing are provided with a tilt mechanism and a rotary mechanism that are mutually independent. The tilt mechanism has a non-lubricated type spherical sliding bearing structure. The rotary mechanism has a rolling bearing structure which may or may not be sealed. By means of the non-lubricated type spherical sliding bearing structure, a tilt of the shaft center is made possible, and by means of a sealed rolling bearing structure, problems such as a lubrication oil leak are avoided, and carrying out high speed rotation and continuous rotation become possible. Because the sealed rolling bearing structure of the rotary mechanism does not call for a shaft center tilt function at all, the material of the seal can be chosen such that it emphasizes sliding resistance and high durability.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: July 31, 2007
    Assignee: Minebea Co. Ltd
    Inventors: Gen Sasaki, Shinichi Akao, Makoto Fujino
  • Patent number: 6857810
    Abstract: A ceramic ball-and-socket joint for a motor vehicle, especially for the chassis of the motor vehicle, is provided, in which the ball-and-socket joint has a ball-and-socket joint housing (5) provided with a joint opening (7) and a ball pivot provided with a joint ball (1) and with a pivot (13), which said ball pivot is mounted rotatably and pivotably with its joint ball (1) in a bearing shell (2) arranged in the ball-and-socket joint housing (5), wherein the ball pivot protrudes with its pivot (13) from the ball-and-socket joint housing (5) through the joint opening (7). The bearing shell (2) is divided into at least two separate bearing shell parts (3, 4), wherein the joint ball (1) and the bearing shell (13) are made of a ceramic material.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: February 22, 2005
    Assignee: ZF Lemförder Metallwaren AG
    Inventors: Metin Ersoy, Martin Rechtien
  • Patent number: 6698963
    Abstract: A ball and socket joint in a vehicle control link and methods therefor including a ball with a connecting member coupled thereto disposed and pivotally retained in a socket by molding a plastic ball in the socket or by molding a plastic socket about the ball. The ball and socket joint may generally be formed of different materials, and in one embodiment the ball and socket joint is plastic formed by insert molding.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: March 2, 2004
    Assignee: Illinois Tool Works Inc.
    Inventors: Eric G. Parker, Jason K. Trotter, Eric David Ross Thompson, Craig L. Simdon
  • Patent number: 6588967
    Abstract: A three-dimensional (spherical) joint for connecting mechanical links has its concave and convex concentrical spherical surfaces connected by preloaded in compression high shape factor (thin-layered) elastomeric elements, whose shear deformation provides for 3D mobility.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: July 8, 2003
    Inventor: Evgeny I. Rivin
  • Patent number: 6551006
    Abstract: The present invention provides a ball joint for use in interconnecting a pair of components to accommodate relative angular movement therebetween. The ball joint includes a socket assembly and a hybrid ball stud. The socket assembly includes a cup-shaped housing defining a cavity therein and an insert disposed within the housing cavity and which defines a spherical ball socket. The hybrid ball stud includes a standard bolt and a polymeric insert attached to, or encapsulating, the head of the bolt to define a spherical ball or a partial spherical ball. The polymeric insert is adapted to be retained in the ball socket. The bolt is a high-volume commercially-available component having a threaded shank segment and a head segment which is over-molded or fitted with the polymeric insert. As such, an inexpensive hybrid ball stud is provided for use in ball joints.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: April 22, 2003
    Assignee: American Axle & Manufacturing, Inc.
    Inventors: Jeffrey L. Kincaid, Neil A. Wasylewski, Brian A. Mattila
  • Patent number: 6520038
    Abstract: A drive device for a moveable part, in particular a hinged side window of a vehicle, with an actuating drive and with a threaded piece which is driven by the actuating drive and which meshes with an associated threaded piece, the associated threaded piece moving the part, there being provision, in order to reduce undesirable noises, for individual flights of at least one threaded piece (14) to be designed in such a way that they come to bear under the effective force in the respectively associated flights of the other threaded piece.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: February 18, 2003
    Assignee: Mannesmann VDO AG
    Inventor: Gerhard Pfanzer
  • Publication number: 20020172546
    Abstract: A three-dimensional (spherical) joint for connecting mechanical links has its concave and convex concentrical spherical surfaces connected by means of preloaded in compression high shape factor (thin-layered) elastomeric elements, whose shear deformation provides for 3D mobility.
    Type: Application
    Filed: April 6, 2001
    Publication date: November 21, 2002
    Inventor: Evgeny I. Rivin
  • Patent number: 6338589
    Abstract: The present invention provides a ball joint for use in interconnecting a pair of components to accommodate relative angular movement therebetween. The ball joint includes a socket assembly and a hybrid ball stud. The socket assembly includes a cup-shaped housing defining a cavity therein and an insert disposed within the housing cavity and which defines a spherical ball socket. The hybrid ball stud includes a standard bolt and a polymeric insert attached to, or encapsulating, the head of the bolt to define a spherical ball or a partial spherical ball. The polymeric insert is adapted to be retained in the ball socket. The bolt is a high-volume commercially-available component having a threaded shank segment and a head segment which is over-molded or fitted with the polymeric insert. As such, an inexpensive hybrid ball stud is provided for use in ball joints.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: January 15, 2002
    Assignee: American Axle & Manufacturing, Inc.
    Inventors: Jeffrey L. Kincaid, Neil A. Wasylewski, Brian A. Mattila
  • Patent number: 6206603
    Abstract: Low to medium pressure, high temperature, all ceramic, air-to-air, indirect heat exchangers, novel ball joints; connecting slip ring collars for ceramic tubes, that are useful in such heat exchangers, systems comprising several heat exchangers or systems comprising heat exchangers that are fabricated such that they provide more efficient heat exchangers than has been possible heretofore.
    Type: Grant
    Filed: August 3, 1999
    Date of Patent: March 27, 2001
    Inventor: Robert G. Graham
  • Patent number: 6095611
    Abstract: A modular backrest system for a wheelchair is removably attached to backrest posts of the wheelchair. The backrest system includes a back support that provides a surface against which the back of a wheelchair user rests, and a support chassis mounted to the back support for supporting the back support at a desired incline with respect to the posts, and at a desired seat depth with respect to the seat. An attachment assembly is further included that is operably connected to the support chassis at two locations and to the posts to allow the support chassis and back support to be readily removed from or attached to the chair. The particular back support employed in conjunction with the support chassis is based upon the support needs of the wheelchair user. One embodiment of the back support includes a backing plate, and a cushion or insert attached to a forwardly presented face of the backing plate against which the back of the individual rests when sitting on the seat.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: August 1, 2000
    Assignee: Roho, Inc.
    Inventors: Christopher A. Bar, Dennis L. Clapper
  • Patent number: 5947627
    Abstract: A ball joint having a ball stud provided with an integral spherical portion at one end thereof. A unitary molded synthetic resin body forms a molded holder having a concavity in which the spherical ball portion is tightly held disposed rotatable omnidirectionally and tiltable therein. The concavity has an opening of a lesser diameter than a maximum diameter of the concavity so that the spherical portion of the ball stud can be pressure-fitted into the concavity with the ball stud extending axially laterally of the molded holder. A link rod having a circular annular end held by the molded holder extends laterally of the holder defining in assembly with the ball stud a ball joint. The annular end is embedded in the synthetic resin of the molded holder and has an internal diameter substantially coaxial with the ball stud and greater than the diameter of ball stud spherical portion so that the synthetic resin concavity and the spherical ball portion have opposed smooth surfaces.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: September 7, 1999
    Assignee: Chuouhatsu-jo Kabushiki Kaisha
    Inventors: Masato Uneme, Katsuyuki Kono
  • Patent number: 5758566
    Abstract: A piston with a slide shoe is described for a hydraulic piston engine, where the piston is designed with a ball socket, and where the slide shoe is provided with a corresponding ball head, whereby these are connected in a ball-and-socket joint, and where the ball head of the slide shoe is designed as a unit moulded into the ball socket in friction reducing material so that the ball head is captured in the ball socket. Hereby an improved fixation of the moulded-on all head on the slide shoe is achieved.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: June 2, 1998
    Assignee: Danfoss A/S
    Inventors: Hardy Peter Jepsen, Henry Madsen M.o slashed.ller
  • Patent number: 5672024
    Abstract: A prepackaged ball joint subassembly is adapted to be installed into a final housing that is then closed to retain the subassembly. The subassembly comprises a bearing and a stud with stud head and a shank which are received in an encasement. The encasement is then sealed. In one preferred embodiment, the encasement includes an upper hood with a lower hook and a lower bowl with an upper hook. One of the hooks extends radially outwardly and the other hook extends radially inwardly such that the upper hood and lower bowl may be snapped together without using special tools.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: September 30, 1997
    Assignee: Dana Corporation
    Inventors: Garth B. Maughan, Leane C. O'Daniel
  • Patent number: 5626057
    Abstract: Main and subsidiary levers 24 and 25 forming a change lever are intersected and coupled to each other to form a T-shape. A pair of hemispherical bodies forming a fulcrum member are formed, at their coupled end surfaces, with supporting recesses extended in three directions and fitted to outer peripheral surfaces of the intersected main and subsidiary levers. With this arrangement, it is possible to reliably and easily mount the spherical fulcrum member to the change lever.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: May 6, 1997
    Assignee: Kabushiki Kaisha Atsumitec
    Inventors: Yukio Nishigai, Shigeo Matsumoto, Takatoshi Harada
  • Patent number: 5615967
    Abstract: A ball joint link includes a center tube and a ball stud. A one-piece, thermoplastic, molded housing extends around the ball to form a ball joint and is secured to the tube. The tube and the ball of the ball stud are both insert molded in the housing in a single molding operation, and the housing is formed of a glass-filled nylon that forms the bearing surface for the ball joint.
    Type: Grant
    Filed: June 3, 1994
    Date of Patent: April 1, 1997
    Assignee: Maclean-Fogg Company
    Inventor: Keith Hellon
  • Patent number: 5611635
    Abstract: The invention pertains to a ball joint comprising a housing (1) provided with a cylindrical receptacle opening (1a) and a gudgeon (2) arranged in a ball socket (3) made of plastic such that it is able to rotate and pivot within a limited range, wherein the outer surface (3b) of the ball socket that corresponds with the inner diameter of the receptacle opening (1a) is, after the assembly process, fixed in the radial direction and secured in the axial direction by means of annular shoulders (3c,4a), one of which (3c) is situated on an annular flange that surrounds the opening (3a) of the ball socket (3) on the side of the gudgeon. In order to ensure a secure, i.e., large-surface, fixing of the ball socket (3) on the housing (1) in the axial direction despite a simplified manufacture, the annular shoulder (4a) that cooperates with the upper side of the housing (1) is arranged on a ring (4) connected with the ball socket (3), preferably in an inseparable manner by means of ultrasonic welding.
    Type: Grant
    Filed: September 15, 1995
    Date of Patent: March 18, 1997
    Assignee: TRW Fahrwerksysteme GmbH & Co. KG
    Inventors: Hans-Joachim Schutt, Lothar Broszat, Theo Heep, Wolfgang Prickler
  • Patent number: 5392693
    Abstract: Piston assemblies for use in fluid translating devices normally are made of hardened metal alloy materials which require very smooth surface and are always subject to varying degrees of thermal expansion when being operated at high operating temperatures. In the subject arrangement, a piston assembly is provided and is constructed of most, if not all, ceramic components. The piston assembly includes a ceramic piston having a spherical head portion at one end thereof which rests in a spherical cavity of a ceramic slipper and held therein by a cylindrical ring. The cylindrical ring can be of a one-piece or a two-piece design which is in contact with the spherical head portion and bonded to the ceramic slipper, thus, retaining the spherical head portion. The cylindrical ring could also be made of a metallic material. The metallic ring is bonded to the ceramic slipper and subsequently swaged to hold the spherical head portion within the spherical cavity.
    Type: Grant
    Filed: March 2, 1994
    Date of Patent: February 28, 1995
    Assignee: Caterpillar Inc.
    Inventors: William K. Engel, James C. Goade, Michael H. Haselkorn, Donald H. Sherman
  • Patent number: 5360282
    Abstract: A ball and socket joint arrangement for mounting a vehicle headlamp assembly to a vehicle is provided which in a preferred embodiment includes a body connected with the headlamp assembly and having an interior spheroid aperture intersected by first and second apertures with a plug in the second aperture, a portion of the plug forming the spheroid aperture; a ball for pivotally mounting within the body spheroid aperture having pivotal motion on at least two axes, the ball having a bore generally aligned with the first aperture and a circumferential groove, the circumferential groove forming a slot with the bore in two geometrically spaced locations; a rod connected with the vehicle for insertion into the bore of the ball and having a circumferential groove aligned with the circumferential groove of the ball; and an omega spring mounted within the circumferential groove of the ball retaining the rod to the ball after insertion of the rod into the bore of the ball by projecting into the slot of the ball and loca
    Type: Grant
    Filed: January 13, 1994
    Date of Patent: November 1, 1994
    Assignee: General Motors Corporation
    Inventors: William E. Nagengast, Leslie H. Hallgarth, Brian E. Witte, Paul E. Young, Jr.
  • Patent number: 5213002
    Abstract: A bearing system for a gear shift lever, which is held in a shift ball and surrounded by an assembly flange. An intermediate layer shaped in the form of a ring, which acts as insulation for vibrations, is arranged between the shift ball and the gear shift lever.
    Type: Grant
    Filed: August 21, 1991
    Date of Patent: May 25, 1993
    Assignee: Firma Carl Freudenberg
    Inventors: Rolf Langhof, Michael Schutz
  • Patent number: 5178482
    Abstract: A ball joint 10 comprises a ball stud 14 having a ball portion 40 and a shank 42 extending from the ball portion 40. A thermoplastic plastic layer 16 encapsulates the ball portion 40 of the ball stud 14 and is adhered to the ball portion 40 of the ball stud 14. A synthetic elastomeric bushing 18 encapsulates the plastic layer 16 and the ball portion 40 of the ball stud 14. The bushing 18 is adhered to the plastic layer 16.
    Type: Grant
    Filed: January 22, 1992
    Date of Patent: January 12, 1993
    Assignee: TRW Inc.
    Inventor: Ruey E. Wood
  • Patent number: 5163772
    Abstract: A ball joint has an elastomeric bearing which encapsulates the ball end of a stud. The bearing has a preformed molded shape that supports the bearing and the stud in predetermined positions relative to the socket during assembly of the ball joint. The preformed molded shape of the bearing defines a rib extending circumferentially around the bearing and the ball. The rib is inserted into a corresponding cavity defined by a mating inner surface of the socket.
    Type: Grant
    Filed: February 8, 1991
    Date of Patent: November 17, 1992
    Assignee: TRW Inc.
    Inventor: Ruey E. Wood
  • Patent number: 5128841
    Abstract: A flashlight holder clamp assembly having a mounting bracket which contains one or, optionally, two elastomeric substantially spherical gripping members having a centrally disposed cylindrical channel therein for receiving a portion of the barrel of a small flashlight and for receiving a cylindrical support member. The gripping members also define a plurality of uniformly spaced longitudinal slots which communicate along their inner ends with the central channel so as to allow the gripping member to be uniformly constricted by the mounting bracket upon clamping the flashlight holder clamp assembly to a cylindrical member, such as a bicycle handlebar.
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: July 7, 1992
    Assignee: Mag Instrument, Inc.
    Inventors: Anthony Maglica, Armis L. Lewis, Fred R. McAlister
  • Patent number: 5062026
    Abstract: A flashlight holder clamp assembly having a mounting bracket which contains one or, optionally, two elastomeric substantially spherical gripping members having a centrally disposed cylindrical channel therein for receiving a portion of the barrel of a small flashlight and for receiving a cylindrical support member. The gripping members also define a plurality of uniformly spaced longitudinal slots which communicate along their inner ends with the central channel so as to allow the gripping member to be uniformly constricted by the mounting bracket upon clamping the flashlight holder clamp assembly to a cylindrical member, such as a bicycle handlebar.
    Type: Grant
    Filed: June 13, 1990
    Date of Patent: October 29, 1991
    Assignee: MAG Instruments
    Inventors: Anthony Maglica, Armis L. Lewis, Fred R. McAlister
  • Patent number: 5037122
    Abstract: A cover for a trailer hitch, to prevent inadvertent injury to personnel when the hitch is not being used. An upstanding dome is provided for use with hitches of the type having a ball. The dome incircles the ball, and in addition provides a clearance space above the top of the ball, such that the cover can yield when jarred by the knee or leg of a person, thereby preventing injury. The cover has a base which is preferably oversize with respect to the dimensions of the hitch bar, and is provided with internal ribs or other cushinong structures that are yieldable. The ribs engage the surface of the bar such that when the cover is inadvertently bumped, the ribs yield, again preventing injury to the leg of a person. The cover also serves to protect parts of the hitch from corrosion.
    Type: Grant
    Filed: July 13, 1990
    Date of Patent: August 6, 1991
    Inventor: Frank S. Beckerer, Jr.
  • Patent number: 4986689
    Abstract: A ball joint including a socket defining a chamber and having an opening. The ball joint also includes a ball stud having a ball portion and a shank portion. The ball portion is located in the chamber of the socket. The shank portion of the ball stud projects through the opening in the socket. The chamber has a shape generally conforming to the shape of the ball portion of the ball stud. Electrorheological fluid is interposed between the ball portion of the ball stud and the socket for resisting relative movement between the ball stud and socket. The viscosity of the electrorheological fluid is variable as a function of the magnitude of an electric field applied thereto to vary the resistance to relative movement between the ball stud and the socket. The electric field applied to the electrorheological fluid is controlled to control the viscosity of the electrorheological fluid and thereby control the relative movement between the ball stud and the socket.
    Type: Grant
    Filed: September 11, 1989
    Date of Patent: January 22, 1991
    Assignee: TRW Inc.
    Inventor: Gilbert H. Drutchas, deceased
  • Patent number: 4955968
    Abstract: A cover for a trailer hitch, to prevent inadvertent injury to personnel when the hitch is not being used. An upstanding dome is provided for use with hitches of the type having a ball. The dome encircles the ball, and in addition provides a clearance space above the top of the ball, such that the cover can yield when jarred by the knee or leg of a person, thereby preventing injury. The cover has a base which is preferably oversize with respect to the dimensions of the hitch bar, and is provided with internal ribs or other cushioning structures that are yieldable. The ribs engage the surface of the bar such that when the cover is inadvertently bumped, the ribs yield, again preventing injury to the leg of a person. The cover also serves to protect parts of the hitch from corrosion.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: September 11, 1990
    Inventor: Frank S. Beckerer, Jr.
  • Patent number: 4927285
    Abstract: A ball joint construction having a ball-stud member with a ball portion and a shank portion and an open-ended socket member in which the ball portion is contained. An elastomeric covering is permanently bonded to the ball stud and then deformed for inserting in the socket thereby resiliently interconnecting the socket and ball members. The socket member is provided with an inner wall portion with an outwardly tapered portion toward the bottom end of the socket.
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: May 22, 1990
    Assignee: The Pullman Company
    Inventors: Steven P. Kotz, John H. Lane
  • Patent number: 4746247
    Abstract: An improved keyhole latch is provided for securing offshore structures in place. The back flange of the flex joint and latch assembly has a male portion and the load ring of the receptacle has a female portion. By matching the male and female portions, rolling of the load ring and flex joint and latch assembly is minimized and the noncontinuous surface on the load ring is strengthened.
    Type: Grant
    Filed: January 30, 1987
    Date of Patent: May 24, 1988
    Assignee: Lockheed Corporation
    Inventors: Edward J. Arlt, III, Frank J. Kovitch, Donald MacLachlan, Charles M. Reinhardt
  • Patent number: 4643608
    Abstract: A pivotal joint assembly including a socket housing having a cavity essentially of the shape of the bearing end of the stud member to receive the bearing member in operative relationship, said bearing member of said stud member being essentially cylindrical in shape and at least covered with sufficient elastomer to form a head and shoulder appearing elastomer ring thereon and to cause the elastomer in the head portion to be compressed 25 to 35% and preferably 27 to 32% in the assembled state.
    Type: Grant
    Filed: July 16, 1984
    Date of Patent: February 17, 1987
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Vernon C. Warner
  • Patent number: 4555198
    Abstract: This invention provides a rubberized stud (10), preferably the molded configuration has a ball shape with a rubber height (28) to thickness (29) ratio of 2.0 to 3.0 and preferably 2.2 to 2.7 which can be compressed sufficiently to be inserted into a smaller diameter shaped socket to maintain the rubber under compression of 20 to 30% of its thickness and thereby produce a spring effect when the ball rod is rotated or twisted.
    Type: Grant
    Filed: September 4, 1984
    Date of Patent: November 26, 1985
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Thomas J. Wenning, Charles E. Lynn
  • Patent number: 4305676
    Abstract: A bore extends radially inward from the top side of the ball component of a ball and socket trailer hitch coupling and removably receives the stem projecting from the underside of a thin pad of plastic material having a low coefficient of friction, whereby when the socket component is coupled to the ball the pad is interposed between their confronting surfaces. The pad may be formed as a hollow segment of a sphere approximately matching the radius of the ball, or it may be flat but sufficiently flexible to be bent to conform to the spherical surface of the ball when the ball and socket components are coupled together.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: December 15, 1981
    Inventor: Ronald M. Wallbank
  • Patent number: 4235558
    Abstract: A ball joint construction having a ball-stud member with a ball portion and a shank portion and an open-ended socket member into which the ball portion is inserted. An elastomeric covering is permanently bonded to both the ball member and a part of the shank portion to provide increased bond life and strength and then deformed for inserting in the open end of the socket thereby resiliently interconnecting the socket and ball members. An additional rib or lip of elastomer is provided on the covering of the ball adjacent the shank which collapses into a continuous multiple curved pattern during insertion into the socket. The rib provides for increased life of the elastomer by improved surface tension parameters and also keeps stones and other debris out of the open-ended portion of the socket. A further bonding between the socket and elastomer after insertion provides a completely bonded system capable of accepting very substantial angular movement without slippage or pullout.
    Type: Grant
    Filed: June 23, 1978
    Date of Patent: November 25, 1980
    Assignee: Gould Inc.
    Inventors: Daniel S. Snyder, Harold L. Kaufman
  • Patent number: 4113979
    Abstract: A device for spacing individual conductors of an overhead transmission line having a hub provided with at least two cavities each opening onto the periphery of the hub, at least two arms each having a conductor clamp at one end and a knob at the other end, the knob being received with clearance within a cavity to permit limited articulation of each arm with respect to the hub, and an elastomeric bush mechanism substantially encircling the arm in the clearance gap between the knob and the cavity wall, the cross-section of each half of the bush on opposing sides of a maximum diameter portion of the knob having been deformed by compression during assembly of the device such that the edge or side portions of the deformed cross-sections include elastomeric material displaced from the central portions of the uncompressed cross-sections.
    Type: Grant
    Filed: February 3, 1977
    Date of Patent: September 12, 1978
    Assignee: Andre Rubber Company Limited
    Inventors: Ralph Percival Torr, Miles Albert Beauchamp
  • Patent number: 4060331
    Abstract: A ball-joint coupling comprises a male coupling member and a female coupling member. The male coupling member includes a ball to which a layer of elastomeric material is bonded. A part-spherical cap is received on the ball over said elastomeric layer and is bonded to such layer. The female coupling member has a part-spherical socket to receive the cap. Retaining means are operative between the cap and the female coupling member to prevent relative rotation of the cap in the socket at least in the horizontal plane, so that relative movement between the male and female coupling member results in deformation of the elastomeric layer and consequent damping of the movement.
    Type: Grant
    Filed: May 21, 1976
    Date of Patent: November 29, 1977
    Assignee: Societe Paulstra
    Inventors: Michel Domer, Jean-Yves Hay
  • Patent number: 3978276
    Abstract: There is disclosed a spacer-damper for electrical transmission cables or the like. A rigid spacer composed of mating half-sections has defined at its extremities hollow spherical sockets for receiving the spherical end portions of individual cable connector structures. The opposite ends of the connectors are fashioned for effecting a gripping connection with a cable. A resilient damping material is interposed between the spherical connector end portions and their associated receiving sockets and the damping material is secured to both the ball and the socket so that on pivoting of the connector arm attendant cable vibration or oscillation the damping material is placed in shear to effect a damping action.
    Type: Grant
    Filed: May 2, 1975
    Date of Patent: August 31, 1976
    Assignee: Preformed Line Products Company
    Inventors: James C. Poffenberger, William F. Corkran, Ralph B. Siter, Jr., Raymond J. Champa