Plural Concentric Elastomeric Rings Patents (Class 267/282)
  • Patent number: 11105381
    Abstract: A bearing assembly is for movably coupling a first member having a centerline and displaceable about a rotation axis perpendicular to the centerline and a second member displaceable about the centerline and/or another axis perpendicular to the centerline. The bearing assembly includes a laminated bearing having an inner axial end coupled with the second member and an outer axial end spaced from the inner end along the first member centerline and coupleable with the first member. A clutch mechanism releasably couples the bearing outer axial end with the first member when the first member angularly displaces about the rotation axis. The clutch mechanism preferably has a first portion connected with the bearing outer axial end, a second portion coupled with the first member and engageable with the first portion to couple the two members, and a biasing member spaces apart the two clutch portions when the first member is non-rotational.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: August 31, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventors: Mike F. Kaiser, Warren A. Lange, Patrick McInerney, Daniel L. Riedl
  • Patent number: 10233992
    Abstract: A component of a laminated bearing assembly is for movably coupling an inner member and an outer member, the inner member having a central axis and the outer member having a bore. The component includes a laminated body disposeable within the outer member bore and having an inner radial end connectable with the inner member and an outer radial end connectable with the outer member. The body is formed of a plurality of alternating, generally arcuate elastomeric and metallic laminae nested generally about the central axis, each one of the elastomeric and metallic laminae having opposing first and second arcuate ends and inner and outer circumferential surfaces extending circumferentially between the first and second arcuate ends. Each metallic lamina has a radial thickness varying circumferentially between a first value at the first, radially-widest arcuate end and a second, lesser value at the second, radially-narrowest arcuate end.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: March 19, 2019
    Assignee: Aktiebolaget SKF
    Inventor: Jeffrey L. George
  • Patent number: 10005553
    Abstract: An apparatus comprising a drivelink comprising a housing including a socket, wherein the socket comprises a cross-sectional area, and a bearing cartridge disposed within the socket, wherein a cross-sectional area of the cartridge is less than the cross-sectional area of the socket. An apparatus comprising a drivelink comprising a housing having a socket, and a bearing cartridge positioned within the socket and comprising a first portion and a second portion, wherein the first portion is configured to undergo compression when a load is applied to the drivelink, and wherein the second portion is configured to not be in tension when the load is applied to the drivelink.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: June 26, 2018
    Assignee: BELL HELICOPTER TEXTRON INC.
    Inventors: Emily Schofield, Chad Jarrett, Dan Sottiaux, Frank B. Stamps
  • Patent number: 9297435
    Abstract: A vibration absorber for a vehicle. The vibration absorber includes a bushing assembly and a mass. The bushing assembly includes an elastomeric element. The mass is mounted relative to the bushing assembly. Movement of the mass articulates the elastomeric element in shear to absorb vibration of the vehicle.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: March 29, 2016
    Assignee: The Pullman Company
    Inventor: Joseph F. Cerri
  • Patent number: 8911153
    Abstract: An elastomeric spherical bearing includes a multiple of shims, at least two of which have different thicknesses. In one exemplary embodiment, each of the shims has a different thickness with a generally equivalent stress on each shim.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: December 16, 2014
    Assignee: Sikorsky Aircraft Corporation
    Inventors: Robert Cunningham, Francis Edward Byrnes
  • Patent number: 8607935
    Abstract: A patient side-system includes a column with a rail and a counterbalance subsystem. The patient side-system may further include a braking subsystem. The counterbalance subsystem includes a spring assembly coupled at one end to the column with a spring member, and a housing movably coupled to the rail. The housing includes a drum to receive the spring member and a plurality of roller elements to guide a movement of the spring member winding or unwinding on the drum. If present, the braking subsystem includes a first pulley rotatably coupled to the column, a second pulley with a locking mechanism spaced apart from the first pulley and rotatably coupled to the column, and at least one brake cable wrapped around the first pulley and the second pulley with ends coupled to the housing. The locking mechanism can set a position of the housing along the column.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: December 17, 2013
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Randal P Goldberg, Henry Hazebrouck, Dean Hoornaert, David Lidgey
  • Patent number: 7441759
    Abstract: An elastomeric bush bearing is designed as a slotted bush. To reach a high ratio of static radial stiffness to torsion spring rate along with a high axial stiffness at the same time, a beading is formed at least at one axial end but preferably at both axial ends of the slotted bush. In case of an especially advantageous embodiment, a slotted bush with additional intermediate parts inserted into the elastomeric bearing body, two encapsulated rubber packets are created by the simultaneous special geometric design of the inner part. The individual stiffnesses of the two rubber packets are thus compensated and thus there is a homogeneous increase in the overall stiffness of the bush. The beadings are prepared before the components of the bearing are assembled and vulcanized to the parts of the later outer sleeve.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: October 28, 2008
    Assignee: ZF Friedrichshafen AG
    Inventors: Tim-Malte Franke, Christine Schumacher, Claudia Hartfiel, Nicole Cieslack
  • Patent number: 6942205
    Abstract: A laminated bushing is formed from a metal sheet having resilient material disposed on one side by spirally winding the metal sheet about a longitudinal axis to form a spirally shaped cavity. The resilient material is disposed within the spirally shaped cavity and the metal sheet forming the spiral shaped cavity either mechanically compresses the resilient material disposed within the cavities, or the resilient material is vulcanized once the laminated bushing is formed. The spirally wound laminated bushing includes inner and outer sleeves concentric about the longitudinal axis that are movable relative to one another in direct proportion to the material deformation properties of the resilient material.
    Type: Grant
    Filed: January 2, 2002
    Date of Patent: September 13, 2005
    Assignee: Meritor Light Vehicle Technology, LLC
    Inventors: Robert P. Carlstedt, Daniel E. Whitney, Mark C. Smith, Eric Stephen Geib, Steven M. Foster, Richard M. Clisch, Shan Shih, Juan Jose Marcos Munoz
  • Patent number: 6752411
    Abstract: A multi-stage torsion axle that has a first stage torsion assembly positioned within a second stage torsion assembly. The first stage torsion assembly has a square first stage shaft within a first elastomeric bushing. The second stage torsion assembly has a square tubular second stage shaft within a second elastomeric bushing, the second stage shaft fitting around the first stage torsion assembly. A hollow square tubular housing fits around the second stage assembly. The resilience of the first stage torsion assembly is less than the resilience of the second stage torsion assembly. A stop mechanism directly transfers torque from the first stage shaft to the second stage shaft when the first stage has rotated more than a predetermined amount relative to the second stage shaft.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: June 22, 2004
    Assignee: Norco Industries, Inc.
    Inventor: Jeffrey P. Few
  • Patent number: 5603490
    Abstract: Fiber-reinforced composite springs having a unidirectional fiber wind. The present invention is a cylindrical torsion bar, or a helical tension or compression spring having a core that is either unreinforced, axial-fiber reinforced, or twisted fiber-reinforced, and a continuous-fiber-reinforced composite cladding having most or all of its fibers helically arrayed around the core. The core may be solid or hollow. The sense of the helical winding is that which places the fibers in tension when the spring is used as intended. A cladding fiber winding helix angle of approximately 55.degree. is used with a weak and unreinforced core, while larger or smaller helix angles are used only with a cores having sufficient stiffness to resist axial-normal stress.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: February 18, 1997
    Inventor: Mark F. Folsom
  • Patent number: 5338055
    Abstract: A wheel suspension for a motor vehicle in which one of the wheel suspension links forms a wheel suspension strut and has a shock absorber which is elastically supported by means of its piston rod in an upper guiding joint which is fixed to the body. The upper guiding joint is prestressed to generate a countermoment counteracting bending moments in a transverse plane of the vehicle about the hinge point.
    Type: Grant
    Filed: January 8, 1992
    Date of Patent: August 16, 1994
    Assignee: Mercedes-Benz AG
    Inventor: Uwe Mauz
  • Patent number: 5188728
    Abstract: A fluid filter clogging display comprising a case of non-magnetic material divided into an upper housing, at atmospheric pressure, and a lower housing by an impermeable membrane, a piston movable in the lower housing and dividing the lower housing into a high chamber and a low chamber, the high chamber communicating with an upstream side of a filter and the lower chamber communicating with a downstream side of the filter, a magnet mounted on the piston and disposed in the high chamber, a magnetizable detector in the upper housing for sensing a position of the magnet, a return spring located in said low chamber biasing the piston towards the impermeable membrane and a helical spring made of a shape memory alloy (SMA) which is stiff above a specific temperature and compliant below such a temperature and mounted such that the SMA spring joins the magnet to the piston depending upon the temperature thereof.
    Type: Grant
    Filed: July 19, 1991
    Date of Patent: February 23, 1993
    Assignee: Le Bozec et Gautier
    Inventors: Jean-Michel Traonvoez, Philippe Pottier, Dominique Tertre
  • Patent number: 5112144
    Abstract: An elastomeric bearing for use at elevated temperatures. The elastomeric bearing is particularly suited for use as an aircraft engine mount to isolate the aircraft cabin from engine noises. The bearing assembly incorporates fulcrums at selected locations to provide clearances which accommodate thermal expansion and contraction of the elastomeric layers.
    Type: Grant
    Filed: January 29, 1991
    Date of Patent: May 12, 1992
    Assignee: Lord Corporation
    Inventor: Thomas R. Law
  • Patent number: 5033722
    Abstract: Resilient mount assemblies provide absorption of induced loads while permitting some degree of relative rotation between the elements. It is desirable to have resilient mount assemblies which can withstand heavy operating loads while having high angular rotation. In this arrangement, a resilient mount assembly is provided having a segmented assembly interconnecting a first member having a spherical outer surface with a second member having a transverse bore therein. The segmented assembly includes first and second semi-circular half shells with first, second, third, and fourth semi-circular elastomeric layers disposed on respective first and second sides thereof. The first and second semi-circular half shells and their respective first, second, third, and fourth semi-circular elastomeric layers are disposed in intimate contact with the spherical outer surface of the first member.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: July 23, 1991
    Assignee: Caterpillar Inc.
    Inventor: Bryan G. Lammers
  • Patent number: 4796862
    Abstract: An improved compensating winch (10, 200) is disclosed which incorporates elastomeric elements (20, 118, 202, 204) which are deformable in torsional shear about the rotational axis of the drum of the winch to absorb shock loading of the cable (22) to increase the service life of the cable and winch and resist catastrophic failure. The elastomeric element can comprise a series of alternating elastomeric rings and rigid rings bonded together to form a unitary structure. Concentric elastomeric elements (202, 204) can be connected in a series relationship to provide for greater annular deflection of a drum versus a drive element.
    Type: Grant
    Filed: December 4, 1987
    Date of Patent: January 10, 1989
    Assignee: Lockheed Corporation
    Inventor: George W. Peppel