Friction Surface On Helical Spring Patents (Class 267/204)
  • Patent number: 10837511
    Abstract: A spring assembly having at least two canted coil spring lengths nested together are disclosed. Two sections of coils of a canted coil spring length can each be positioned between two adjacent coils of another canted coil spring. Each section of the coils of the canted coil spring length includes at least one coil and up to several coils or a plurality of coils. The canted coil spring lengths are nested together to increase the deflection force of the overall spring assembly. The spring assembly having two or more nested spring lengths can be used in connector applications.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: November 17, 2020
    Assignee: Bal Seal Engineering, LLC
    Inventor: Brian Carter
  • Patent number: 10508700
    Abstract: An arcuate spring having a plurality of coils which are configured and dimensioned to provide an arcuate shape to the spring and being substantially free of internal stresses which would tend to urge the coils into linear alignment. The spring is designed to function under load conditions while maintaining its natural arcuate shape. The spring is can be heated by use of an induction heating process.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: December 17, 2019
    Assignee: Barnes Group Inc.
    Inventors: Eugenio Ferreira Cunha, Sergio Roveri
  • Patent number: 9623883
    Abstract: In a railcar truck in which secondary springs are disposed between the railcar truck and a carbody of the railcar, the railcar truck has a pair of side beams having concavities configured to receive the secondary springs. Each of the side beams has a side beam outer wall, a side beam inner wall, a side beam lower wall and a side beam upper wall, and the side beam upper wall includes an opening through which the received secondary spring projects. The concavity is formed by the side beam outer wall, the side beam inner wall and the side beam lower wall, and receive the secondary spring through the opening.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: April 18, 2017
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yoshi Sato, Junichi Sakamoto
  • Patent number: 9162705
    Abstract: Disclosed herein is an adjustable suspension mount system that includes a first mount link pivotally attached to a mount feature and extending to a device used to support a load on a first wheel, the first mount link pivotally attached to the device. The mount feature is attached to or integrated into the frame of the vehicle. The system further includes a second mount link pivotally attached to at least one of the mount feature and a second mount feature, the second mount link extending to the first mount link, the second mount link pivotally attached to the first mount link. Further disclosed is a vehicle including the system, and a kit including the components to provide the system for a vehicle.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: October 20, 2015
    Inventor: Aaron L. Aldrich
  • Patent number: 9133899
    Abstract: The invention essentially relates to an energy-absorbing element (1?) comprising: an absorbing portion (2), a first (3) and second anchoring point (4), a first (2?) and second (2?) distal ends of said absorbing portion (2) being respectively secured to the first and second anchoring points (3, 4), characterized in that it also comprises: a pretensioning flange (12) installed between the first (2?) and second (2?) distal ends, the length (L) of said flange (12) exceeding the gap (E) between the two distal ends (2?, 2?) in order to pretension said absorbing element.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: September 15, 2015
    Assignee: AIRBUS HELICOPTERS
    Inventors: Vincent Delage, Catherine Sibottier, Julien Dhermand
  • Patent number: 8636271
    Abstract: A damper is shown for damping the movements of a valve spring in an engine. The valve spring can be housed within the damper or the damper may be located inside of the valve spring. The damper is made from a suitable polymer and has one or more tabs or slots located radially to a central axis and one or more helical springs, rings or bands housed in the slots or between the tabs. The helical springs, rings or bands are located on the outer surface of the damper where the valve spring is housed within the damper. The cross section, number and location of the tabs, slots, helical springs, rings or bands can be adjusted depending on the particular application of the damper and the amount of damping that is desired for the particular application. The damper can also incorporate a hub or stem seal and ports for receiving oil.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: January 28, 2014
    Inventors: Ronald N. Check, Jonathan E. Slade, Jason B. Youd
  • Patent number: 8556241
    Abstract: A damper is shown for damping the movements of a valve spring in an engine. The valve spring can be housed within the damper or the damper may be located inside of the valve spring. The damper is made from a suitable polymer and has one or more slots located radially to a central axis and one or more rings or bands. The rings or bands are located on the outer surface of the damper where the valve spring is located within the damper. The rings or bands are located on the inner surface of the damper where the valve spring surrounds the damper. The cross section, number and location of the slots, rings or bands can be adjusted depending on the particular application of the damper and the amount of damping that is desired for the particular application.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: October 15, 2013
    Inventors: Ronald N. Check, Jason B. Youd, Jonathan E. Slade
  • Patent number: 8393602
    Abstract: A coil spring with irregular cross section according to the present invention is made by subjecting a coil wire having an irregular cross section to a fatigue-strength improving treatment including a shot peening treatment after coiling the coil wire into a spring configuration, and the coil spring with irregular cross section has a vertical cross sectional profile whose coil inner-peripheral-side section is expressed by following Equation (1) and Equation (2) in a polar coordinate system and orthogonal coordinate system: x=(LR??b)cosnxr ?+?b??(1) y=SR sinnyr ???(2) wherein ? is a deflection angle in said polar coordinate system; and 0°??<90°, 270°??<360°, 0.7?nxr?0.9, 0.8?nyr?1.0, and 0.1SR??b?0.3SR; in said Equation (1) and Equation (2). In accordance with the present invention, it is possible to provide a coil spring with irregular cross section that exhibits more uniform and higher fatigue strength along a cross-sectional peripheral direction of the coil wire.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: March 12, 2013
    Assignee: Togo Seisakusyo Corporation
    Inventors: Hisao Isobe, Jun Matsumoto
  • Patent number: 8052129
    Abstract: A damper is shown for damping the movements of a spring. The spring is housed within the damper. The side walls of the damper have inverted T-shaped cutouts and hinge members resulting in flexure of the side walls when the spring is compressed or released. A steel band can be housed on the outside surface of the side walls providing biasing of the inside of the side walls against the outside of the spring thereby damping movement of the spring.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: November 8, 2011
    Inventors: Jason B. Youd, Ronald N. Check, Jonathan E. Slade
  • Patent number: 7506560
    Abstract: An actuator, preferably a linear actuator, a reversible motor which drives an adjustment element via a transmission. To increase the self-clocking ability of the actuator, the actuator is equipped with a coil spring which has its one end secured to a rotating element in the actuator so that the spring is carried along in the rotation on the cylindrical part, which is static in relation thereto. When the motor is turned off, and the load on the actuator tries to displace the adjustment element, the movement of the coil spring is blocked, and the coil spring is tightened around the cylindrical part.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: March 24, 2009
    Assignee: Linak A/S
    Inventor: Norbert Klinke
  • Patent number: 7370855
    Abstract: A damper is shown for damping the movements of a valve spring in an engine. The valve spring can be housed within the damper or the damper may be located inside of the valve spring. The damper is made from a suitable polymer and has one or more slots located radially to a central axis and one or more rings or bands. The rings or bands are located on the outer surface of the damper where the valve spring is located within the damper. The rings or bands are located on the inner surface of the damper where the valve spring surrounds the damper. The cross section, number and location of the slots, rings or bands can be adjusted depending on the particular application of the damper and the amount of damping that is desired for the particular application.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: May 13, 2008
    Inventors: Jason B. Youd, Derek Saynor
  • Patent number: 6789790
    Abstract: A device for reducing the resonant vibrations of a helical valve spring of an internal combustion engine includes a member, such as a tension cable, attached between one end of the spring and a coil mid-section of the spring for limiting the movement of the coil mid-section away from the one end of the spring to about the distance between the coil mid-section and the one end of the spring when the spring is in a condition corresponding with a condition at which the spring is in static equilibrium.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: September 14, 2004
    Inventors: Frank H. Speckhart, Brian David Mongold, Hyunjun Chun, Von M Tyler, Jr.
  • Patent number: 6279765
    Abstract: A railcar cushioning device with a gas charged cylinder and a piston contained in the cylinder for cushioning buff and draft impacts. A spring assembly is contained in the cylinder between the piston and an end of the cylinder to locate the piston in a neutral position.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: August 28, 2001
    Assignee: ASF-Keystone, Inc.
    Inventor: Jay P. Monaco
  • Patent number: 5513730
    Abstract: A nonlinear shock absorber is disclosed. The device has a housing filled with hydraulic fluid and contains a relatively heavy mass or piston supported by a helical coil. The helical coils disposed and shaped so as to provide a nonlinear resistance to a shock applied to the housing. During shock absorption fluid flows contra to the piston movement with a corresponding elongation of the helical coil spring causing the coil spring to engage an inner wall of the housing to provide for frictional dampening.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: May 7, 1996
    Inventors: Paul A. Petrovich, David L. Kuhn
  • Patent number: 5482221
    Abstract: In a fly reel, drag is provided by use a helically wound wire spring mounted coaxially over a fixed post attached to the reel frame. The turns at one end of the helically wound spring loosely contact the fixed post, while at the other end of the spring the turns are in intimate contact with the post. One end of the spring is free and the other end is fixed to a spool axially straddling the spring-post combination. The spool contains a drag adjustment knob whose initial setting determines the angular travel of the spool until a pin on the knob contacts the free end of the spring. As line is stripped from the spool, the spool rotates and the loose turns incrementally tighten about the fixed post.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: January 9, 1996
    Assignee: Dean M. Peterson
    Inventors: Dean M. Peterson, Norman L. Stauffer
  • Patent number: 5390904
    Abstract: An attenuated hinge spring assembly for a trunk lid of an automotive vehicle includes a coiled spring which is connected to a bracket secured to the vehicle, a threaded stud which is secured to the bracket, a plate which is slidably mounted on the bracket and the stud, a nut rotatably attached to said threaded stud and selectively secured to an arm, and a washer which lies between the plate and the nut. The plate lies adjacent to the coiled spring. The arm is pivotally connected to the trunk lid and to the bracket. The spring is connected to the stud and the arm and uncoils as the arm pivots from a lowered position to a raised position to move the lid between a lowered position and a raised position. When the lid is raised, the arm rotates which causes the nut to rotate and translate along the stud, which in turn causes the washer and plate to translate along said stud.
    Type: Grant
    Filed: October 8, 1993
    Date of Patent: February 21, 1995
    Assignee: Illinois Tool Works, Inc.
    Inventors: Corey M. Rivard, Eric G. Parker, Robert K. Dutzi
  • Patent number: 5290096
    Abstract: A pressure control valve is disclosed comprising a valve tappet (1) guided in a valve housing (3) and accommodating a compression spring (4), with a valve closure member (10) on one end of the valve tappet (1) and mating with a valve seat (9) establishing a connection between a pressure supply port (11) that emanates from a pressure fluid source and a pressure return channels (12) once the pressure attains a specific preset desired valve. In order to diminish noise, at least one friction element (2) is engagement with the valve tappet (1) movable to abut on radial friction surfaces of the valve housing (3) and/or the valve tappet (1).
    Type: Grant
    Filed: May 8, 1992
    Date of Patent: March 1, 1994
    Assignee: Alfred Teves GmbH
    Inventors: Erhard Beck, Anton David, Helmut Weisbrod, Horst Kornemann
  • Toy
    Patent number: 4869704
    Abstract: Spring-like element for use as a toy or the like consisting of a coil of copper tape of high width-to-thickness ratio forming an elongated frusto-conical structure that exhibits spring characteristics combined with dry friction damping.
    Type: Grant
    Filed: April 11, 1988
    Date of Patent: September 26, 1989
    Assignee: Fisher Industries, Inc.
    Inventor: Martin Fisher
  • Patent number: 4830348
    Abstract: A noise suppressing device for a coil spring, and the combination of a spring equipped with such a device, in which the noise suppressing device takes the form of at least one spring metal sleeve of arcuate C-shaped cross section extending about and tightly engaging a portion of the spring intermediate the length thereof. A lug portion of the sleeve projects into the spacing between a pair of adjacent coils and limits the extent of sliding movement of the sleeve along such coils as the spring expands and contracts.
    Type: Grant
    Filed: February 17, 1988
    Date of Patent: May 16, 1989
    Assignee: Perfection Spring & Stamping Corp.
    Inventor: Peter G. Seyler
  • Patent number: 4779854
    Abstract: A vibration damper for bodies which extend substantially parallel to one another, consisting of a clip made of a permanently elastic material and adapted to be slipped undislodgeably onto one of the bodies, and of at least two lugs projecting therefrom in the direction of at least one further body which clasp the latter with elastic initial tension, permitting relative displacement.
    Type: Grant
    Filed: September 22, 1987
    Date of Patent: October 25, 1988
    Assignee: Firma Carl Freudenberg
    Inventors: Werner Idigkeit, Benno Jorg, Heinz Seifert
  • Patent number: 4732372
    Abstract: Damping elements physically contact some of the coils on one or more mechanical coil springs disposed between a railway car body and a truck. The coils contacted may be at the ends of the springs or at areas between the ends. When double springs are involved, with one being spaced within the other, the damping elements are disposed in the space between the springs at the ends thereof.
    Type: Grant
    Filed: July 11, 1986
    Date of Patent: March 22, 1988
    Assignee: Budd Company
    Inventors: William W. Dickhart, III, James M. Herring, Jr.
  • Patent number: 4726574
    Abstract: A vibration damper for bodies which extend substantially parallel to one another, consisting of a clip made of a permanently elastic material and adapted to be slipped undislodgeably onto one of the bodies, and of at least two lugs projecting therefrom in the direction of at least one further body which clasp the latter with elastic initial tension, permitting relative displacement.
    Type: Grant
    Filed: March 13, 1987
    Date of Patent: February 23, 1988
    Assignee: Firma Carl Freudenberg
    Inventors: Werner Idigkeit, Benno Jorg, Heinz Seifert