Comprising Compressible Fluid Patents (Class 267/64.11)
  • Patent number: 9778015
    Abstract: The present disclosure relates to a piston-cylinder unit with a cylinder jacket and a piston rod longitudinally shiftably guided in the cylinder jacket as well as an evaluation unit which determines the position of the piston rod with respect to the cylinder jacket by the intrinsic electrical properties of an interconnection of cylinder jacket, piston rod and piston, wherein the piston rod is short-circuited against the cylinder or the cylinder head in a manner suitable for high frequencies via one or more contact elements in the region of the exit opening of the piston rod out of the cylinder head.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: October 3, 2017
    Assignee: Liebherr-Elektronik GmbH
    Inventors: Markus Dropmann, Alfred Engler
  • Patent number: 9694801
    Abstract: A compressed air supply device for operating a pneumatic installation comprises an air supply unit configured to supply air, an air compression unit configured to compress air, a bleeding line comprising a controllable solenoid valve arrangement, the solenoid valve arrangement having a magnetic part and a pneumatic part, and a bleeding port configured to bleed air. The device also comprises a compressed air supply line having an air drier and a compressed air port, the compressed air supply line being configured to supply the pneumatic installation with compressed air, wherein the pneumatic part is open when the magnetic part is not activated.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: July 4, 2017
    Assignee: WABCO GMBH
    Inventors: Dieter Frank, Frank Meissner, Uwe Stabenow
  • Patent number: 9321525
    Abstract: The landing gear systems, methods and apparatuses disclosed herein may comprise a shrink pump and an unshrink valve that are capable of shrinking a landing gear shock strut up to about 40% of its available stroke. The shrink pump may be configured to pump fluid (e.g., a hydraulic fluid) between an oil chamber, where hydraulic fluid is likely present and a shrink chamber to shrink the landing gear. Moreover, the shrink pump and unshrink valve may be part of a strut shrink system.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: April 26, 2016
    Assignee: Goodrich Corporation
    Inventor: William E. Luce
  • Patent number: 9303711
    Abstract: A damper includes: an inner cylinder defining an inner chamber, having a slidable contact piston; an outer cylinder outside the inner cylinder and defining a reservoir chamber between the inner outer cylinders; and a damping-force control device controlling damping force by controlling a flow rate of an operating oil between the inner reservoir chambers. The control device includes a valve seat externally, projecting from the outer cylinder, having an opening for a first communicating channel connected to the inner chamber and an opening for a second communicating channel connected to the reservoir chamber, a valve element opening and closing on the valve seat by electromagnetic force, and a cap defining a variable pressure chamber between the cap and the valve element, and integrally holds the valve element and the valve seat. The variable pressure chamber can be connected to the first and the second communicating channels.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: April 5, 2016
    Assignee: Honda Motor Co., Ltd.
    Inventor: Kiyoshi Nakajima
  • Patent number: 9279469
    Abstract: A delay mechanism of a main rod of a gas spring is described, having an inner rod and a series of gas chambers which are defined in the interior of the body of the spring in such a manner that, by controlling the passage of gas between said chambers, the speed and delay of the main rod of the spring is controlled.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: March 8, 2016
    Assignee: Azol-Gas, S.L.
    Inventors: Felix Javier Estirado Vera, Oscar Alejos Perez
  • Patent number: 9234557
    Abstract: Flexible spring members can be dimensioned for securement to an associated gas spring end member. The flexible spring member can be at least partially formed from elastomeric material. The flexible spring member can also include a marking disposed along a surface thereof that includes one or more indicia. The marking can be at least partially formed by an indicia layer and an outer layer. The indicia layer can include one or more quantities of material that at least partially form the one or more indicia. The outer layer can be formed from a quantity of material that is disposed overtop of the indicia layer such that the one or more indicia of the indicia layer are substantially encapsulated. Gas spring assemblies, suspension systems, methods of manufacture and manufacturing systems are also included.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: January 12, 2016
    Assignee: Firestone Industrial Products Company, LLC
    Inventor: Graham R. Brookes
  • Patent number: 9157500
    Abstract: A gas cylinder actuator with a safety device for controlled ejection of the piston stem, which has, on the side of the region for fixing the head portion to the jacket, a region in low relief on the inner face of the jacket, designed to interrupt the seal provided selectively either by the gasket elements associated with the piston or by the gasket elements associated with the head portion, and normally operating against the inner face of the jacket, in case of separation of the head portion with an outward movement of the piston.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: October 13, 2015
    Assignee: SPECIAL SPRINGS S.R.L.
    Inventors: Augusto Cappeller, Massimo Fiorese, Daniel Fantinato
  • Patent number: 9150075
    Abstract: A method and apparatus for a shock absorber for a vehicle having a gas spring with first and second gas chambers, wherein the first chamber is utilized during a first travel portion of the shock absorber and the first and second chambers are both utilized during a second portion of travel. In one embodiment, a travel adjustment assembly is configured to selectively communicate a first gas chamber with a negative gas chamber.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: October 6, 2015
    Assignee: Fox Factory, Inc.
    Inventors: Andrew Laird, Sante M. Pelot, William M. Becker, Dennis K. Wootten
  • Patent number: 9080629
    Abstract: A shock absorber includes a piston disposed within a pressure tube. A valve assembly is attached to the piston. The valve assembly defines a first fluid flow through an always open fluid passage; a second fluid flow due to elastic deformation of a valve disc of the piston assembly; and a third fluid flow due to movement of the entire valve disc away from the piston. In one embodiment, the valve assembly is designed to be pre-assembled at an off-line and/or off-site location.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: July 14, 2015
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: M'Hand Nait Oukhedou, Gert Mangelschots, Ward Opdekamp, Werner Bosmans
  • Publication number: 20150100206
    Abstract: A shock absorber includes a gas spring cylinder containing a piston moveable between an extended position and a compressed position within the gas spring cylinder. A mechanical actuator is arranged whereby a bleed port is automatically closed when the gas spring is compressed to a predetermined position corresponding to a desired sag setting. In one embodiment, the position corresponds to a predetermined sag setting whereby the gas spring is partially compressed. In another embodiment, a proper sag setting is determined through the use of a processor and sensor that in one instance measure a position of shock absorber components to dictate a proper sag setting and in another instance calculate a pressure corresponding to a preferred sag setting.
    Type: Application
    Filed: December 12, 2014
    Publication date: April 9, 2015
    Inventors: Mario GALASSO, Dennis K. WOOTTEN, Joseph FRANKLIN
  • Patent number: 8985562
    Abstract: The invention relates to a diameter-variable cylindrical air pressure spring. The current air pressure spring has the shortcomings of complex structure, insufficient deformation stroke and poor ventilation effect.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: March 24, 2015
    Assignee: Xilinmen Furniture Co., Ltd.
    Inventor: Ayu Chen
  • Publication number: 20150054247
    Abstract: A shock absorber includes a first portion and a second portion that reciprocate relative to one another. The shock absorber includes a gas spring chamber defined between an interior wall and a plunger. A seal including a lip portion minimizes gas pressure loss and friction between the two portions.
    Type: Application
    Filed: August 22, 2014
    Publication date: February 26, 2015
    Inventors: Darek C. Barefoot, Eric Prinster, Scott Winans
  • Patent number: 8950735
    Abstract: Shock absorbers for integration into protective structures generally take the form of hollow, compressible cells. The cell enclosure may be configured to provide for two or more compression stages. For example, in various embodiments, the cell enclosure includes one or more corrugations descending from the top wall, which, upon contact with the bottom wall, contribute to impact absorption.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: February 10, 2015
    Assignee: Xenith, LLC
    Inventors: Alexander Reynolds, Kyle Lamson
  • Patent number: 8950764
    Abstract: A jounce bumper can include a mounting wall and at least one helical thread. An end member can be at least partially formed from a quantity of polymeric material and can include a base wall and at least one helical thread integrally formed from the quantity of polymeric material. The end member and the jounce bumper can form a gas spring assembly. A method of assembly is also included.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: February 10, 2015
    Assignee: Firestone Industrial Products Company, LLC
    Inventors: Stephen R. Egolf, Stephen C. Street
  • Patent number: 8939090
    Abstract: In a guided vehicle of air spring suspension for running along exclusive guideways, decreasing of center distance of the left and right air spring to mount air springs of increased dimension and increased load carrying capacity, which decreasing of the center distance induces decrease in rolling stiffness of the vehicle resulting in deteriorated ride quality and also induces difficulty in adjusting vehicle height resulting in spending long time in height adjusting operation, will not be required even when load carrying capacity of air springs is required to be increased in order to comply with increased vehicle load. A plurality of air spring elements are mounted tandem along the longitudinal direction of the vehicle with the air spring elements connected with each other so that air pressure thereof is always equal.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: January 27, 2015
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Tokumitu Tomada, Masahiro Inui
  • Patent number: 8934948
    Abstract: An air dampening assembly for an electronic device comprises a base member. A first piston housing is disposed on the base member. A second piston housing is disposed on the based member opposite the first piston housing. A sliding member is disposed between the first and second piston housing. A first piston is disposed on a first elongated member of the sliding member. The first piston housing is configured to receive the first piston. A second piston is disposed on a second elongated member of the sliding member. The second piston housing is configured to receive the second piston.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: January 13, 2015
    Assignee: BlackBerry Limited
    Inventors: Martin Earl Holman, IV, Bruce Alan Ivanik, Douglas Wayne Moskowitz
  • Publication number: 20140367900
    Abstract: An air spring attachment system for motor vehicles. The air spring attachment system includes at least one air spring and at least one link for the suspension of a wheel on a chassis. The air spring attachment system also includes a plug-in connection connecting the air spring to the link.
    Type: Application
    Filed: June 17, 2014
    Publication date: December 18, 2014
    Inventors: Michael Weber, Stephan Dehlwes
  • Publication number: 20140327197
    Abstract: In one embodiment, a gas spring having a travel control includes positive and negative chambers and a valve mechanism that controls the fluid communication between the chambers. The valve mechanism includes a valve bore that while only moving a small amount, allows for large changes in gas spring travel length.
    Type: Application
    Filed: July 21, 2014
    Publication date: November 6, 2014
    Inventors: Joseph Franklin, Robert C. FOX
  • Patent number: 8864113
    Abstract: An end member for a gas spring assembly includes an end member wall with a first wall portion at least partially defining a substantially-flat surface area in a first plane, a second wall portion at least partially defining an outer peripheral extent of the end member wall and a third wall portion at least partially defining a substantially-flat surface area in a second plane. A valley can extend lengthwise along the third wall portion. A gas spring assembly and method of assembly are also included.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: October 21, 2014
    Assignee: Firestone Industrial Products Company, LLC
    Inventors: Leonardus J.B. Peeters, Machiel G.A. Wentink, Daniel I. Levy, Daniel P. Steele
  • Publication number: 20140291945
    Abstract: A gas spring for a vehicle suspension system includes a cylinder, a rod disposed within the cylinder, a relative movement between the rod and the cylinder changing the volume of a chamber formed between the rod and the cylinder, and an accumulator in communication with the chamber. Compression of gas in the chamber at least partially provides a first spring rate for deflections of the gas spring below a threshold, compression of gas in the chamber at least partially provides a second spring rate for deflections of the gas spring above the threshold, and the first spring rate is greater than the second spring rate.
    Type: Application
    Filed: June 16, 2014
    Publication date: October 2, 2014
    Inventors: Roy Venton-Walters, Aaron J. Rositch, Jesse L. Knoble, Erik S. Ellifson, Mark L. Steckling
  • Patent number: 8844910
    Abstract: A gas strut assembly includes a housing defining an interior space. A rod is coupled to the housing, and is slideably moveable between an extended position and a retracted position. A flexible member is secured in position relative to the housing. A rigid member is coupled to and moveable with the rod. The flexible member includes at least one displaceable member that moves radially away from the central axis in response to a second radial force component of a closing force when engaged by the rigid member moving from the extended position into the retracted position. The flexible member includes a multi-layered structure that changes shape in response to a change in temperature to affect the magnitude of the second radial force component required to move the displaceable member.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: September 30, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Gary W Krajenke, Alvin N Standard, Babu R Amarnath
  • Patent number: 8844912
    Abstract: A shock absorber for a vehicle, having a bellows piston, bellows, and a fluid as the damping medium. The shock absorber has a first partition wall, which is situated on the bellows piston, and is implemented to separate a volume area of the bellows piston from a volume area of the bellows. The first partition wall has a first opening, which is implemented to limit a fluid flow between the volume area of the bellows piston and the volume area of the bellows. The shock absorber further has a sprung mass, which is situated inside the shock absorber to influence the fluid flow inside the shock absorber.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: September 30, 2014
    Assignee: Knorr-Bremse Systeme fuer Nutzfahrzeuge GmbH
    Inventor: Thomas Naber
  • Patent number: 8840062
    Abstract: A pylon mounting system with vibration isolation is provided. The system generally includes a housing that defines a first fluid chamber and a second fluid chamber, a fluid disposed within the fluid chambers; a piston assembly at least partially disposed within the housing, and a tuning passage defined by the piston assembly for providing fluid communication between the fluid chambers. The piston assembly has a first arm and a second arm, and each arm has a tubeform bearing for providing pitch and roll stiffness.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: September 23, 2014
    Assignee: Textron Innovations Inc.
    Inventors: Michael R. Smith, Steven Spears, Frank B. Stamps, Michael S. Seifert
  • Publication number: 20140239565
    Abstract: A spring for a suspension is described. The spring includes: a spring chamber divided into at least a primary portion and a secondary portion, and a fluid flow path coupled with and between the primary portion and the secondary portion. The fluid flow path includes a bypass mechanism, wherein the bypass mechanism is configured for automatically providing resistance within the fluid flow path in response to a compressed condition of the suspension.
    Type: Application
    Filed: May 5, 2014
    Publication date: August 28, 2014
    Inventor: Sante Pelot
  • Patent number: 8814150
    Abstract: Shock absorbers for integration into protective structures generally take the form of hollow, fluid-filled, compressible cells. In various embodiments, the cell enclosure includes one or more orifices, or vents, through which a fluid (such as air or water) can escape from the inner chamber formed by the enclosure.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: August 26, 2014
    Assignee: Xenith, LLC
    Inventors: Vincent Ferrara, Alexander Reynolds
  • Patent number: 8807542
    Abstract: A method and apparatus for a vehicle shock absorber comprising a main damper cylinder, a first reservoir and a second reservoir. One embodiment includes a first operational mode where both reservoirs are in fluid communication with the cylinder. In a second operational mode, only one reservoir communicates with the cylinder during fluid evacuation from the cylinder. In each mode, rebound from either or both reservoirs may travel through a single, user-adjustable metering device.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: August 19, 2014
    Assignee: Fox Factory, Inc.
    Inventors: Mario Galasso, Dennis K. Wootten, Bryan Wesley Anderson
  • Publication number: 20140210146
    Abstract: In a spring leg of a front fork, the capacity of a rebound air spring chamber is expanded and a stable rebound reaction force is ensured, and the spring leg of the front fork is provided with a sub-tank including an air chamber communicating with a rebound air spring chamber.
    Type: Application
    Filed: September 13, 2013
    Publication date: July 31, 2014
    Applicant: SHOWA CORPORATION
    Inventor: Yasuhiro Aoki
  • Patent number: 8776964
    Abstract: A gas cylinder actuator with overtravel safety device, comprising a tubular jacket which is closed by a bottom provided with a gas filling valve and at the opposite end by a head portion, which is provided with a hole for the passage of a stem with a piston; the gas cylinder actuator has, on the inner face of the jacket, in the compression chamber, a region in low relief designed to interrupt the seal provided by a gasket of the piston or the head portion, which act against the inner face.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: July 15, 2014
    Assignee: Special Springs S.r.l.
    Inventors: Augusto Cappeller, Massimo Fiorese, Daniel Fantinato
  • Patent number: 8757600
    Abstract: The invention concerns a pneumatic springing system for vehicles with at least a first and a second part (3, 4), wherein the two parts (3, 4) are mounted vibration-mobile and pneumatically sprung in relation to each other by means of at least one pneumatic spring (8), wherein a first control device (10) is arranged to supply air to and extract air from the pneumatic spring (8), which carries out the extraction of air after a first travel end zone (62) of the springing system has been reached in which the pneumatic spring (8) is in a compressed state, and which carries out the supply of air after a second travel end zone (63) of the springing system has been reached in which the pneumatic spring (8) is in an extended state, wherein a second control device (20) is provided to supply air to the pneumatic spring (8) and disable the extraction of air from the pneumatic spring (8) during a pre-determinable first time interval (61) after a first travel end stop (58) in the first travel end zone (62) has been reached
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: June 24, 2014
    Assignee: Grammer AG
    Inventor: Erwin Haller
  • Patent number: 8746661
    Abstract: The invention relates to a hydro-pneumatic piston accumulator (1), particularly for vehicle suspension systems, consisting of an accumulator housing (2) and a separating piston (6), which is disposed free-floating inside the accumulator housing in a displaceable manner in the direction of the movement axis (4). The separating piston separates an accumulator area (8) for a hydraulic medium from a pressure area (10) that is filled or is to be filled with a compressible medium, and is guided with an interior guide opening (30) on an elongated guide element (32), which is axially fixed within the accumulator housing (2).
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: June 10, 2014
    Assignee: Hemscheidt Fahrwerktechnik GmbH & Co. KG
    Inventor: Walter Runkel
  • Publication number: 20140138885
    Abstract: A pneumatic spring device with a housing (1) surrounding an air-filled annular chamber (2) and with a piston (3) sliding axially in the annular chamber (2), for the reduction or avoidance of flow noises, at least one cushion (K) made from metal wire netting being integrateable directly into the annular space (2) so as to be capable of throughflow.
    Type: Application
    Filed: November 21, 2013
    Publication date: May 22, 2014
    Applicants: Continental Teves AG & Co. OHG, Dr. Ing. h.c. F. Porsche AG
    Inventors: Daniel MAY, Richard Legierski, Ingo Tetzlaff
  • Patent number: 8727081
    Abstract: A restraint device for being secured on a telescopic suspension comprising a first portion, which may be a fork band comprising a first restraining hook, a second portion comprising a body, a trigger, at least one magnetic member, and a second restraining hook, wherein the first restraining hook and the second restraining hook are configured to selectively engage one another to secure the suspension in a compressed position, and wherein the at least one magnetic member is configured to retract the second restraining hook when the device is disengaged to permit normal operation of the suspension.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: May 20, 2014
    Assignee: Works Connection, Inc.
    Inventor: Eric Phipps
  • Patent number: 8695764
    Abstract: A system for monitoring a liquid level in an aircraft shock strut includes a cylinder having an internal chamber sealed by a piston telescopically movable within the cylinder. The chamber contains a gas and a liquid, and a sensor assembly is provided for monitoring a condition of a level of the liquid in the chamber. The sensor assembly includes at least one probe within the chamber, and a fitting assembly allows one or more leads from the probe to pass through the wall of the strut while maintaining pressure in the chamber. The fitting assembly includes a plug molded to the one or more leads extending from the probe. The fitting assembly also includes a retainer for holding the plug in sealed relationship with a through passage in the strut.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: April 15, 2014
    Assignee: Goodrich Corporation
    Inventor: William E. Luce
  • Publication number: 20140062040
    Abstract: An air spring that can be used in an air suspension system includes a hollow piston, a hollow shaft and a body. The hollow piston has a hole through it. The hollow shaft has a shaft interior volume in communication with the hole in the piston. The body has a body interior volume in communication with the hole in the hollow piston. The hole in the hollow piston in communication with the shaft interior volume and the body interior volume provides a total interior volume. Wherein, the total interior volume is greater than the body interior volume thereby providing a linearized spring rate.
    Type: Application
    Filed: September 3, 2013
    Publication date: March 6, 2014
    Applicant: MSI Defense Solutions, LLC
    Inventors: David J. Holden, Andrew M. Wizorek, Todd J. Holbert
  • 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
  • Publication number: 20130264784
    Abstract: A gas spring for a vehicle suspension system includes a cylinder, a rod, and an accumulator. The rod is disposed within the cylinder, and relative movement between the rod and the cylinder changes the volume of a chamber formed between the rod and the cylinder. The accumulator is in gaseous communication with the chamber such that a continuous body of gas extends between the chamber and the accumulator.
    Type: Application
    Filed: June 3, 2013
    Publication date: October 10, 2013
    Inventors: Roy Venton-Walters, Aaron J. Rositch, Jesse L. Knoble, Erik Ellifson, Mark L. Steckling
  • Patent number: 8528708
    Abstract: An air damper is provided which can exhibit an appropriate braking force in accordance with an input load. There is provided an air damper including: a tubular cylinder 1 in which both end portions are opened; a piston 2 which moves within the cylinder 1; and a cap 3 which closes a one-end opening of the cylinder 1, wherein the cylinder 1 has an annular seal surface 4 formed on a circumferential surface of the one-end opening, wherein the cap is mounted on the one-end opening side of the cylinder 1 so as to be moveable or deformable along an axial direction of the cylinder 1, wherein the cap is brought into contact with or separated from the seal surface 4 in accordance with a pressure change due to a movement of the piston 2 within the cylinder 1, and wherein a first orifice 14 is opened in a base plate 12 of the cap, characterized in that: a second orifice having an inlet area smaller than the first orifice is defined between the cap 3 and the cylinder 1 during an operation of the first orifice 14.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: September 10, 2013
    Assignee: Piolax Inc.
    Inventors: Takahiro Sakai, Tomoyoshi Ohnuki, Takao Nagai
  • Publication number: 20130134687
    Abstract: A method and apparatus for a shock absorber for a vehicle having a gas spring with first and second gas chambers, wherein the first chamber is utilized during a first travel portion of the shock absorber and the first and second chambers are both utilized during a second portion of travel. In one embodiment, a travel adjustment assembly is configured to selectively communicate a first gas chamber with a negative gas chamber.
    Type: Application
    Filed: January 28, 2013
    Publication date: May 30, 2013
    Inventors: Andrew Laird, Sante M. Pelot, William M. Becker, Dennis K. Wootten
  • Patent number: 8398091
    Abstract: A suspension system for a vehicle, including: an electromagnetic actuator configured to generate an actuator force and including a sprung-side unit supported by a sprung portion, an unsprung-side unit supported by an unsprung portion, a screw mechanism, and an electromagnetic motor; a connecting mechanism including a support spring for permitting one of the sprung-side and unsprung-side units to be floatingly supported as a floating unit by a unit-floatingly support portion that is one of the sprung and unsprung portions by which the floating unit is supported; and a controller including a sprung-vibration-damping control portion and a relative-vibration-damping control portion that is configured to execute a relative-vibration damping control for damping a vibration of the floating unit caused by the structure in which the floating unit is floatingly supported by the support spring.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: March 19, 2013
    Assignees: Toyota Jidosha Kabushiki Kaisha, Kayaba Industry Co., Ltd.
    Inventors: Hirofumi Inoue, Takuhiro Kondo
  • Patent number: 8382077
    Abstract: A gas spring assembly includes a first end member and a second end member. A flexible wall is secured between the first and second end members and at least partially defines a spring chamber therebetween. A fitting is supported on the first end member and is rotatable between a first position in which the fitting can be axially displaced and a second position in which the fitting is axially restrained. A method is also included.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: February 26, 2013
    Assignee: Firestone Industrial Products Company, LLC
    Inventor: Joshua R. Leonard
  • Patent number: 8382076
    Abstract: A support column with a vertical tube has a coaxially installed gas spring including a cylinder divided by a piston into first and second working chambers. A piston rod passes through the second working chamber in a sealed manner to the outside, where it is attached to a bottom support piece of the vertical tube. The cylinder projects out of the vertical tube and is guided with freedom to slide back and forth in a guide sleeve installed in the end of the vertical tube opposite the bottom support piece. A connection between the first and second working chambers can be blocked by a manually actuatable valve. A second valve between the chambers, which is closed when the gas spring is under load, can be switched to the open position after the load on the gas spring has been absent for a certain period of time.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: February 26, 2013
    Assignee: Stabilus GmbH
    Inventors: Matthias Etzkorn, Manfred Metzdorf, Thomas Müller
  • Patent number: 8348250
    Abstract: A pneumatically damping mount, in particular an engine mount for motor vehicles, includes a bearing spring of elastomeric material for supporting a mount core and delimiting a working chamber. The working chamber is filled with a gas, in particular air, and communicates with the ambient atmosphere through a nozzle opening. A progression element of elastomeric material is disposed opposite the bearing spring and delimits the working chamber together with the bearing spring, to enable further deformation of the mount after closing of the working chamber.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: January 8, 2013
    Assignee: Trelleborg Automotive Germany GmbH
    Inventors: Manfred Hofmann, Arndt Graeve
  • Patent number: 8302945
    Abstract: A cover assembly for an air spring for vehicles includes a cover (1) and a buffer (2) in the cover (1). The cover (1) is made from plastic and has reinforcing ribs (3) on the inside. The stop buffer (2) has slots on the side thereof facing the cover (1) in a manner corresponding to the reinforcing ribs (3) of the cover (1). The ribs (3) of the cover (1) are inserted into the slots (8). Damage to the buffer (2) by impact of the ribs (3) on the buffer (2) is thus avoided.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: November 6, 2012
    Assignee: ContiTech Luftfedersysteme GmbH
    Inventors: Hubertus Gawinski, Christoph Bank, Hans Werner Kopplow, Rolf Steinbach
  • Patent number: 8282281
    Abstract: A vertically and horizontally effective air bearing comprising a base, an interface part that is movably arranged on the base, a piston that is movably arranged inside the interface part and supports a load, and a coupling element that couples the piston with the load. The load is supported in a manner to be isolated from vibration in the horizontal and vertical directions with respect to the base, and the coupling element preferably comprises a pin that is coupled to the piston. The coupling element is spaced from the load by at least one quarter of the length of the piston.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: October 9, 2012
    Assignee: Integrated Dynamics Engineering GmbH
    Inventor: Peter Heiland
  • Publication number: 20120217686
    Abstract: A spring for a suspension is described. The spring includes: a spring chamber divided into at least a primary portion and a secondary portion, and a fluid flow path coupled with and between the primary portion and the secondary portion. The fluid flow path includes a bypass mechanism, wherein the bypass mechanism is configured for automatically providing resistance within the fluid flow path in response to a compressed condition of the suspension.
    Type: Application
    Filed: February 24, 2012
    Publication date: August 30, 2012
    Inventor: Sante Pelot
  • Patent number: 8251354
    Abstract: A gas spring includes a rod body that has a base end side movable into and out of a cylinder body. The rod body is urged in a direction outward of the cylinder body by pressure from a gas sealed inside the cylinder body. A cylindrical cover body includes a base end portion connected to a distal end portion of the rod body that projects outside of the cylinder body. An end portion of the cover body receives a head end portion of the cylinder body inside a cylindrical cover member at an end portion of the cylinder body. The cover member covers a portion of the spring that would otherwise be exposed to the air between the end portion of the cover body and the end portion of the cylinder body when the cylinder body is contracted inside the cover body.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: August 28, 2012
    Assignees: Kayaba Industry Co., Ltd, KYB-YS Co., Ltd.
    Inventors: Takashi Asa, Yasushi Saito
  • Patent number: 8240643
    Abstract: The invention relates to a combined pneumatic bellow (14) for a pneumatic suspension (10), wherein an axle-sided area (18) of pneumatic bellow (14) comprises, in a base state, a preshaped adapted from 928) and said adapted form (28) is embodied in such a manner that the axle-sided area (18) can be arranged on a protruding part (30) of a plunger 914) and the axle-sided area (18) is configured in such a manner that, in the event of the axle-sided area 918) moving towards a frame-sided area (16) of the pneumatic bellow (14), the axle-sided area (18) adapts to the adapted form (28). The invention also relates to a pneumatic suspension, a vehicle axle system wherein the inventive pneumatic bellow is used and to a method for producing said pneumatic bellow.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: August 14, 2012
    Assignee: SAF-Holland GmbH
    Inventor: Helmut Hock
  • Patent number: 8240642
    Abstract: A monotube shock absorber assembly includes a housing (20), a gas cup (32) slidably disposed in the interior (28) of the housing (20), and a piston (42) slidably disposed in the interior (28) of the housing (20) to define an oil compression chamber (48) between the piston (42) and the gas cup (32). A cushion (58) engages one of the piston (42) and the gas cup (32) and extends axially into the oil compression chamber (48) for intermittent contact with the other of the piston (42) and the gas cup (32). The cushion (58) is a resilient material and deforms in response to the cushion (58) contacting the other of the piston (42) and the gas cup (32). In a preferred embodiment, the cushion (58) defines a central opening (60) for decreasing the axial stiffness of the cushion (58) and engages the gas cup (32) for intermittent contact with the piston (42).
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: August 14, 2012
    Assignee: BWI Company Limited S.A.
    Inventors: James P. Hamberg, Michael W. Hurtt
  • Patent number: 8235351
    Abstract: A shock load isolation mounting system that incorporates a dashpot into each shock load isolation mount to provide damping. Each shock load isolation mount includes a shock mount portion having a first end fixed to the object to be isolated from shock loads, a second end, and an intermediate section between the first end and the second end. Each isolation mount also includes a dashpot mounted in series with the shock mount portion. The dashpot includes a moveable piston and a cylinder that receives the piston therein. The piston is fixed to the second end of the shock mount portion, and the cylinder is fixed to a support that is fixed relative to the object so that the dashpot provides damping in directions parallel to compression and tension directions of the shock mount portion.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: August 7, 2012
    Assignee: Lockheed Martin Corporation
    Inventor: Brian T. Van Lear
  • Patent number: 8210330
    Abstract: A gas damper includes a gas pressurized working chamber and valving within the piston to control flow of the gas through the piston. A system is in communication with the working chamber to control the gas pressure within the working chamber in order to control the damping characteristics of the damper. An electronic control unit is utilized to control the opening and closing of the valving within the piston to also control the damping characteristics of the damper.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: July 3, 2012
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventor: Bart Vandewal