Compound Patents (Class 267/259)
  • Publication number: 20140217664
    Abstract: The invention relates to a pneumatic spring device for a motor vehicle, including a rolling piston (4), a pneumatic spring cover (5) axially movable thereto, and an interposed elastomer covering as rolling bellows (6) with a trapped compressible air volume. According to the invention, at least one additional spring element (3) is connected in series to the pneumatic spring (2), with a radial bearing (14) of the rolling piston (4) and/or the pneumatic spring cover (5) being integrated as torsion compensation.
    Type: Application
    Filed: July 27, 2012
    Publication date: August 7, 2014
    Inventor: Marco Willems
  • Publication number: 20140061987
    Abstract: A jounce bumper can be dimensioned for securement along an end member of a gas spring assembly adjacent a sensing device. The jounce bumper can include a bumper body with a sensing passage extending their through such that the sensing device can communicate through the sensing passage. A gas spring assembly including a sensing device and such a jounce bumper as well as a suspension system including one or more of such gas spring assemblies are also included.
    Type: Application
    Filed: August 30, 2013
    Publication date: March 6, 2014
    Applicant: FIRESTONE INDUSTRIAL PRODUCTS COMPANY, LLC
    Inventors: Brian S. DeBruler, Todd A. Chapman
  • Patent number: 8567770
    Abstract: To expand a body weight adjustment range and achieve thinning. An initial position adjusting member 15 which can adjust initial resilient forces of two torsion bars 31, 41 is provided. Therefore, a body weight adjustment range is expanded as compared with a conventional configuration where a resilient force of only one torsion bar is adjusted.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: October 29, 2013
    Assignee: Delta Tooling Co., Ltd.
    Inventors: Etsunori Fujita, Yutaka Sakamoto, Hiroki Oshimo
  • Patent number: 8501062
    Abstract: A composite includes a first preform and a second preform spaced from and in overlying relationship to the first preform. The second preform defines at least one first opening extending therethrough along an axis transverse to the first preform. A first surface layer is disposed adjacent to the second preform and on an opposite side of the second preform from the first preform. A polymeric composition including the reaction product of an isocyanate component and an isocyanate-reactive component is disposed between the first preform and the second preform. The polymeric composition adheres the first surface layer to the second preform through the at least one first opening. The surface layer is adhered to the second preform during molding of the composite article and in the absence of additional adhesive, thereby reducing production time and cost of the composite article.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: August 6, 2013
    Assignee: BASF Aktiengesellschaft
    Inventors: James F. Turnbach, David R. Phelps, Danny Snider
  • Publication number: 20130127132
    Abstract: A suspension system for a vehicle has an upper control arm and an associated lower control arm for mounting a wheel on the vehicle body. A hydro-pneumatic spring is connected between one of the control arms and the vehicle body. A compensating spring is associated with the hydro-pneumatic spring and is operable to act in opposition to the force exerted by the hydro-pneumatic spring as the hydro-pneumatic spring approaches full extension.
    Type: Application
    Filed: January 18, 2013
    Publication date: May 23, 2013
    Inventors: Sean Timoney, Colin James Anderson
  • Publication number: 20130009350
    Abstract: The invention relates to a wheel suspension which has a spring system (1) which has a first spring element (2) and at least one second spring element (3), the first spring element (2) being held between two supporting elements (4, 5). The first spring element (2) has a first actuator (6), the second spring element (3) at the same time also having a second actuator (7) which is independent of the first actuator (6).
    Type: Application
    Filed: June 25, 2012
    Publication date: January 10, 2013
    Inventor: Friedrich Peter Wolf-Monheim
  • Patent number: 7621705
    Abstract: Representative embodiments include a support apparatus that can be positioned between a load element and a support element to cushion the load element against vibration with respect to the support element. A receiving member and a base member are movably engaged along an axis of movement. An element engaging surface is defined on one of the members and is configured to releasably engage one of the elements. A vibration reduction device mounted between the members and configured to yieldably resist relative movement of the members toward one another.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: November 24, 2009
    Inventors: Dee J. Hillberry, Mark C. Mortimore
  • Publication number: 20080067770
    Abstract: A hydraulic control circuit (100) comprises a source (180) of fluid pressure having a fluid inlet (201) and a fluid outlet (202); a fluid reservoir (181) fluidly connected to the fluid inlet of the pressure source; an attenuation means (111) having a fluid inlet (203) fluidly connected to the fluid outlet of the pressure source, and a fluid outlet (204); a pressure control valve (199) fluidly connected to the fluid inlet of the attenuation means and to the fluid reservoir or the fluid inlet of the pressure source; and one or more valves (82-84) fluidly connected to the fluid outlet of the attenuation means.
    Type: Application
    Filed: July 24, 2007
    Publication date: March 20, 2008
    Inventor: Philippe A. Germain
  • Patent number: 7000910
    Abstract: A suspension unit includes a lower frame and an upper frame vertically movably mounted on the lower frame via a link mechanism. The suspension unit also includes a magneto-spring unit for resiliently supporting the upper frame relative to the link mechanism. The amount of motion of the magneto-spring unit is smaller than that of the suspension unit, making it possible to provide a relatively compact suspension unit having a large stroke.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: February 21, 2006
    Assignee: Delta Tooling Co., Ltd.
    Inventor: Hiroki Oshimo
  • Patent number: 6890137
    Abstract: An ambulance stretcher support is described for an ambulance having a floor with a top floor surface. In one embodiment, each support includes a stretcher leg receiving member that is adapted to releasably receive an ambulance stretcher leg. A base, configured to be mounted to the ambulance floor, mounts the stretcher leg receiving member for movement between a position substantially coplanar with the top floor surface, and a position below the top floor surface. A vibration reduction device is mounted between the base and the stretcher leg receiving member such that the stretcher leg can be releasably supported on the stretcher leg receiving member and the vibration reduction device will reduce transfer of vibration from the ambulance floor to the stretcher.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: May 10, 2005
    Inventors: Dee J. Hillberry, Mark C. Mortimore
  • Publication number: 20040239022
    Abstract: A suspension unit includes a lower frame and an upper frame vertically movably mounted on the lower frame via a link mechanism. The suspension unit also includes a magneto-spring unit for resiliently supporting the upper frame relative to the link mechanism. The amount of motion of the magneto-spring unit is smaller than that of the suspension unit, making it possible to provide a relatively compact suspension unit having a large stroke.
    Type: Application
    Filed: May 27, 2004
    Publication date: December 2, 2004
    Inventor: Hiroki Oshimo
  • Patent number: 6527263
    Abstract: A shock absorbing transport frame is provided. The frame comprises an inner frame and an outer frame capable of supporting a transportation device. The outer frame is secured to the inner frame in a manner that will control movement between the inner and outer frames. A four bar linkage operating between the inner and outer frame provides the movement control. The frame includes a pneumatic self-adjusting mechanism to maintain a constant gap between the inner and outer frame. The mechanism includes an air valve that adjusts air pressure to an air bag connected to the four bar linkage, wherein changes in the distance between the inner and outer frame create changes in the pressure to the air bag thereby exerting a counter acting force to return the inner and outer frame to a neutral position.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: March 4, 2003
    Inventor: Nick Verbrugge
  • Patent number: 6431532
    Abstract: Vibration dampening assembly alone and in vehicle trailing arm suspension has a link member, a shock absorber and a lever member. The link member has a first end pivotally interconnected with either of the trailing arm or the vehicle frame at a first support pivot. A lever member is pivotally interconnected with the link member second end at a link pivot intermediate the first and second ends of the lever member. A shock absorber has a first end of pivotally interconnected with the lever member second end at a shock pivot and has a second end pivotally interconnected with the other of the trailing arm or the vehicle frame at a second support pivot spaced from said first support pivot. The lever member is pivotally interconnected with either the trailing arm or the vehicle frame at a main pivot connection located at the first end of the lever member.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: August 13, 2002
    Assignee: The Holland Group, Inc.
    Inventors: Thomas A. McKenzie, William J. Hicks
  • Patent number: 6220587
    Abstract: A vibration dampening assembly and a suspension system for use, for example, between a cab and a flame of a truck, has a link with a first end pivotably interconnected with a second plate at a first support pivot, a lever with a first end pivotably interconnected with the second end of the link at a link pivot, a shock absorber, the first end of which is pivotably interconnected with the lever second end at a shock pivot and the second end of which is pivotably interconnected to a first or the second plate at a second pivot support spaced from the first support pivot wherein the lever is pivotably interconnected with the first plate at a main pivot connection located intermediate the first and second ends thereof. In one embodiment, the shock absorber central axis and the lever longitudinal axis are parallel when the supporting body and the suspended body are in a static condition.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: April 24, 2001
    Assignee: Holland Neway International, Inc.
    Inventors: Thomas A. McKenzie, Richard L. Conaway
  • Patent number: 5558361
    Abstract: A suspension system for front wheels of a low-body bus includes a frame and a wheel carrier. A shock absorber, a strut bar, and a torsion bar are also provided, all of which are disposed horizontally and below a floor of the vehicle body enable positioning of the floor at a low position and allow a wider floor area.
    Type: Grant
    Filed: October 5, 1994
    Date of Patent: September 24, 1996
    Assignee: Hyundai Motor Company
    Inventor: Dong W. Shin
  • Patent number: 5398907
    Abstract: A hanger for suspending a first component from a second elevated component comprising a first body member formed of a thermoplastic elastomer having a first durometer hardness and a tensile strength sufficient to support the first component, and having a pair of spaced openings therein; a second body member formed of a thermoplastic elastomer having a durometer hardness less than the first durometer hardness, disposed within one of the openings of the first body member and being molded integrally therewith and having an opening therein for receiving an attachment element of the second elevated component; and a third body member formed of a thermoplastic elastomer having a durometer hardness less than the first durometer hardness, disposed within the other of the openings of the first body member and being molded integrally therewith and having an opening therein for receiving an attachment element of the first component; the materials of the second and third body member being compatible with the material of t
    Type: Grant
    Filed: June 12, 1992
    Date of Patent: March 21, 1995
    Assignee: Chemcast Corporation
    Inventor: James C. Kelchner
  • Patent number: 5390903
    Abstract: A variable force die spring is disclosed which combines high force, short axial compression distance spring assembly, such as belleville springs, and low force, high axial compression distance springs, such as coil springs, in a telescoping casing having an internal cavity. The springs are arranged within the cavity so that upon receiving a load the low force spring will compress first resulting in a large axial compression and low force resistance. The load applied to the telescoping casing will then transition from the low force spring to the high force spring. The high force spring then compresses as the load continues to be applied. In alternative embodiments, a third intermediate spring is added that compresses moderate distances under moderate pressure thereby increasing the overall axial compression and load capacity capabilities of the spring assembly.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: February 21, 1995
    Assignee: Connell Limited Partnership
    Inventor: Erich D. Fidziukiewicz
  • Patent number: 5378010
    Abstract: A suspension system for a vehicle having a support frame includes a set of wheel assemblies, a swing arm attached to each of the wheel assemblies, a torsion bar assembly interconnecting the swing arms and a shock absorbing and dampening device located between the supported frame and the torsion bar assembly whereby a load imposed on one of the wheel assemblies due to turning of the vehicle will transmit a torque to one portion of the torsion bar assembly, which torque is resisted by the shock absorbing device and another portion of the torsion bar assembly.
    Type: Grant
    Filed: September 23, 1992
    Date of Patent: January 3, 1995
    Assignee: Oshkosh Truck Corporation
    Inventors: Robert L. Marino, Donald J. Burns, Leo Davis
  • Patent number: 5058868
    Abstract: A shock absorber for automobile vehicle suspension comprises a cylinder containing a hydraulic fluid, a piston defining a first chamber and a second chamber in the cylinder, and a rod which extends through the second chamber and is connected to the piston. A hydraulic fluid reservoir is able to communicate with the first chamber via a restriction during a rapid compression movement. A control valve is capable of opening a fluid passage between the first and second chambers. The control valve is subject on one hand to the pressure of hydraulic fluid in the first chamber tending to open the valve and, on the other hand, to the actions tending to close the valve, of a return spring and of substantially constant pressure of a fluid contained in a reference chamber, one wall of which is movable with the control valve. An external compensation casing, integral with the rod, grips the shock absorber in sealed manner, and the compensation casing is connected by a pipe to an external source of variable pressure.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: October 22, 1991
    Inventor: Jacques Sirven
  • Patent number: 5005859
    Abstract: A suspension for supporting a wheel on a vehicle body includes a hollow shaft fixed to the vehicle body, an arm having one end coupled to the wheel and an opposite end pivotally supported on an outer peripheral surface of the hollow shaft, a rotary damper interposed between the hollow shaft and the arm, for dampening swinging movement of the arm with respect to the hollow shaft, and a torsion bar extending through the hollow shaft and having one end fixed to the vehicle body and an opposite end coupled to the opposite end of the arm for angular movement in unison with the arm.
    Type: Grant
    Filed: November 17, 1989
    Date of Patent: April 9, 1991
    Assignee: Kabushiki Kaisha Showa Seisakusho
    Inventors: Yutaka Satoh, Yoshinori Takeuchi
  • Patent number: 4984777
    Abstract: A flexible bearing for supporting a body, in particular, for supporting an internal-combustion engine, includes a journal bearing that may be attached to a supporting foundation and a support that may be attached to the engine. An elastic spring is connected between the journal bearing and the support while a bearing spring made of a non-creeping material is connected between the journal bearing and the support in parallel with the elastic spring. The bearing spring comprises at least one disk spring having an S-shaped spring constant curve. The disk spring and the elastic spring have load carrying capacities such that, after the weight of the body to be supported is applied to the flexible bearing, the spring rate of the disk spring is essentially zero and the rubber spring is essentially free of elastic tensions.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: January 15, 1991
    Assignee: Firma Carl Freudenberg
    Inventors: Klaus Kurr, Hans-Gerd Eckel, Heinz Seifert, Werner Idigkeit, Armin Barth
  • Patent number: 4974820
    Abstract: A bellows type shock absorber comprises a sealed bellows, a shock absorbing column which is provided with a chamber around it inside the bellows and which is along the axial line of the bellows and combined with the bellows so that it physically varies in conjunction with expansion and contraction of the bellows. Also, the bellows type shock absorber may have a through hole which communicates the internal chamber and the outside, and preferably the shock absorbing column is made of a kind of gelled material with a penetration value of approximately 50 to 200. This shock absorber is provided with the main bellows and a sub-bellows having a spring constant differing from that of the main bellows and a through hole which communicates the internal chamber of the main bellows and the internal chamber of the sub-bellows.
    Type: Grant
    Filed: May 22, 1989
    Date of Patent: December 4, 1990
    Assignee: Suzuki Sogyo Kabushiki Kaisha
    Inventor: Motoyasu Nakanishi
  • Patent number: 4930336
    Abstract: A single action cylinder is used with a machine. The machine has a first part and a second part having reciprocating motion relative to each other. The single action cylinder affects the reciprocation between the first and second parts. The cylinder includes a base adapted for attachment to one of said parts. The cylinder includes a plurality of open ended longitudinally extendable resilient actuators stacked one above the other. A first actuator of said actuators has one end connected to the base. Each of the actuators is interconnected to an adjacent actuator to allow a fluid to flow between the actuators. A second actuator of the actuators has one end connected to an apparatus for attaching the second actuator to the other of the parts. An elongated guide is connected to one of the actuators to limit movement of that actuator in a direction transverse to the length of the guide.
    Type: Grant
    Filed: January 30, 1989
    Date of Patent: June 5, 1990
    Assignee: Kenneth L. Smedberg
    Inventors: Kenneth L. Smedberg, George J. Bozich, Robert J. Kotynski
  • Patent number: 4688777
    Abstract: A pair of stacked springs are connected between a main railway car body and a truck. At least one of the springs include an elastomeric member having a center opening therein. Restricting members are provided to limit the lateral movement of one of the springs while permitting free vertical movements of both of the springs.
    Type: Grant
    Filed: November 1, 1985
    Date of Patent: August 25, 1987
    Assignee: The Budd Company
    Inventor: George Mekosh, Jr.