Diaphragm Or Bellows Patents (Class 267/122)
  • Patent number: 10630142
    Abstract: An electromagnetic actuator including: a stator and a mover configured to have an oscillation force exerted between them, the stator and the mover being arranged in a direction orthogonal to a direction of oscillation with a space in between; and at least one plate spring connecting the stator and the mover to each other, the plate spring permitting relative displacement of the stator and the mover in the direction of oscillation while positioning the stator and the mover with respect to each other in the direction orthogonal to the direction of oscillation, wherein at least one through hole piercing the plate spring in a thickness direction is formed in a portion of the plate spring that corresponds to the space between the stator and the mover.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: April 21, 2020
    Assignee: SUMITOMO RIKO COMPANY LIMITED
    Inventors: Tomohiro Kanaya, Akira Ohji
  • Patent number: 10557511
    Abstract: The invention relates to an air spring (1) for a vehicle, comprising an air-spring module (2) having an air-spring module connection element (3) as connecting part with the load to be suspended, and air-spring module bellows (4), wherein the air-spring module bellows (4) are connected, on the side facing the air-spring module connection element (3), to the air-spring module connection element (3) at least in an airtight manner, a rolling piston (8), wherein the air-spring module (2) has at least one connecting element (5) for at least airtight connection of the air-spring module (2) to the rolling piston (8), wherein the air-spring module bellows (4) are arranged in an airtight connecting manner between the air-spring module connection element (3) and the connecting element (5), wherein the connecting element (5) is arranged directly adjacent to the rolling piston (8) at least in certain sections and the connecting element (5) is placed onto the rolling piston (8), and wherein one or more guide rib(s) (7
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: February 11, 2020
    Assignees: Thyssenkrupp Bilstein GmbH, thyssenkrupp AG, Dunlop Systems and Components
    Inventors: Jens Priess, Thomas Kampschulte, Kyle Cooper, Christopher Ross
  • Patent number: 10519302
    Abstract: An air spring bellow comprising a vulcanized rubber component including the at least partially vulcanized residue of EPDM and a rubber other than EPDM. A method for preparing an air spring bellow is also provided.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: December 31, 2019
    Assignee: Firestone Building Products Company, LLC
    Inventors: Jason Donald Nieten, Michael Christopher Howard
  • Patent number: 10435044
    Abstract: An air spring includes: an outer cylindrical member; an inner cylindrical member; a diaphragm which couples the outer and inner cylindrical members and forms an internal space; a stopper assembly disposed in the internal space; and a pivoting mechanism which causes this stopper assembly to pivot on the inner cylindrical member. The stopper assembly has a stopper portion protruding towards the outer cylindrical member, and the outer cylindrical member has as a set four or more protrusion portions provided at a position to face the stopper portion and protruding toward the inner cylindrical member. Each of the protrusion portions belonging to the set is disposed successively and also different in height. Each of the protrusion portions belonging to the set is arranged without having a protrusion portion belonging to the set smallest in height adjacent to a protrusion portion belonging to the set largest in height.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: October 8, 2019
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Takayuki Sawa, Hideki Kitada, Yasuhiko Ura, Takehiro Nishimura, Keiichiro Kamura, Yoshi Sato
  • Patent number: 10336147
    Abstract: A spring guide includes: a mounting portion formed so as to be depressed, the rubber sheet being fitted to the mounting portion; and a plurality of lock pieces formed to stand at an outer periphery of the mounting portion. At least one of the plurality of the first lock pieces and the second lock piece is disposed at a position that restricts deformation of a circumferential end portion of the rubber sheet to an outside in a radial direction, in a state where the rubber sheet is fitted to the mounting portion.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: July 2, 2019
    Assignees: KYB Corporation, HONDA MOTOR CO., LTD., SUMITOMO RIKO COMPANY LIMITED
    Inventors: Masahiro Miwa, Kazuma Ando, Yasutaka Ohta
  • Patent number: 10337577
    Abstract: A linear spring member having an annular region with a first thickness connected in series by cylindrical regions having a second thickness, wherein the first thickness is less than the second thickness. Outer portions of adjacent annular regions are coupled together by a first cylindrical region and inner portions of adjacent annular regions are coupled together by a second cylindrical region such that the effective spring rate of the bi-directional spring device increases symmetrically as it is displaced in either compression or tension.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: July 2, 2019
    Assignee: Raytheon Company
    Inventors: Andrew L. Bullard, Shane E. Wilson, Ricardo A. Aguilera, Ryan Yates
  • Patent number: 10302167
    Abstract: A molded piston for an air spring for a vehicle suspension has an outer shell, a non-cylindrical central column braced in its relation to the outer shell by outer radial webs, and an upper surface having a recessed lower end closure seating surface. The non-cylindrical central column may have a chordal surface and a mounting stud sleeve and hole for attachment to a vehicle suspension member. The mounting stud sleeve and hole may be braced in its relation to the non-cylindrical central column by inner radial webs. The non-cylindrical central column may further have a locating sleeve and hole. The outer radial webs may be provided with Y-shaped webs connecting the outer radial webs to the outer shell and/or web arches.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: May 28, 2019
    Assignee: Firestone Industrial Products Company, LLC
    Inventors: Edger ten Broeke, Machiel G. A. Wentink
  • Patent number: 10288089
    Abstract: An actuator includes a displaceable portion, first to fourth artificial muscles, a pressure adjuster that changes a pressure of a fluid filled in the first and second artificial muscles, an open-close valve that allows a fluid to flow into or out of the third and fourth artificial muscles, and a controller that drives the pressure adjuster and controls the open-close valve. Each of the first to fourth artificial muscles includes a coiled elastic tube. In an outer circumferential surface of the tube, grooves are helically formed about an axis of the tube. The tube is filled with a fluid. In the first artificial muscle, a direction in which the tube is coiled is opposite to a direction in which the grooves extend helically. In each of the second to fourth artificial muscles, a direction in which the tube is coiled is the same as a direction in which the grooves extend helically.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: May 14, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Katsuhiko Asai, Takayuki Nagata, Kazuo Inoue
  • Patent number: 10197126
    Abstract: Gas spring end members can include an end member body formed substantially entirely from a polymeric material. The end member body can have a longitudinal axis and can include a body wall with an end wall portion oriented transverse to the longitudinal axis. The end wall portion can at least partially define a mounting plane of the gas spring end member that is dimensioned to abuttingly engage an associated structural component. The body wall can also include an outer peripheral wall portion disposed radially outward of the end wall portion and that at least partially defines an outer peripheral edge of the gas spring end member. The outer peripheral wall portion can be axially offset from the end wall portion in a direction away from the mounting plane. Gas spring assemblies, suspension systems and methods are also included.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: February 5, 2019
    Assignee: Firestone Industrial Products Company, LLC
    Inventors: David D. Jackson, Jr., Jeremy M. Wiedmann, Matthew F. Byron
  • Patent number: 9770958
    Abstract: An assembly (AS1) in accordance with the subject matter of the present disclosure can include a gas spring (200), an internally-mounted device (300) and a mounting assembly (400, 500) operatively connecting the internally-mounted device to an end member (202, 204) of the gas spring (200). The mounting assembly (400, 500) can permit at least a portion of the internally-mounted device to undergo 360 degree rotational and pivotal displacement relative the end member (202, 204) of the as spring (200). The mounting assembly (400, 500) can include a device mount (402, 502) that can be operatively secured to the internally-mounted device (300) and a retainer (404, 504) that is secured to the end member (202, 204) and operatively retains the device mount (402, 502) adjacent the end member (202, 204).
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: September 26, 2017
    Assignee: Firestone Industrial Products Company, LLC
    Inventor: Joshua R. Leonard
  • Patent number: 9771956
    Abstract: An actuator converts the pressure of a fluid into a change in the length of the actuator and is formed such that an elastic tube is spirally wound. The tube is wound around the axis of the actuator. One or more grooves are spirally formed on the outer surface of the tube along the axial center of the tube. When the fluid contained in the inside of the tube is pressurized, a torsional force is applied to the tube along the spirals of the one or more grooves and causes the actuator to contract in the axial direction. Even when an external force acts in a direction in which the actuator is bent, the volume of the inside of the tube is not substantially varied. Accordingly, the actuator can be allowed to freely move in a bending direction.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: September 26, 2017
    Assignee: PANSONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Katsuhiko Asai, Takayuki Nagata, Kazuo Inoue
  • Patent number: 9707815
    Abstract: A flexible sleeve dimensioned for securement to an associated end member for an associated gas spring assembly includes a flexible wall. An annular reinforcement member is embedded within the flexible wall. A retainment element that includes an element surface is disposed along the flexible wall such that at least the element surface is outwardly exposed. At least one gas spring piston, at least one gas spring assembly and at least one method are also included.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: July 18, 2017
    Assignee: Firestone Industrial Products Company, LLC
    Inventors: Paul P. Koeske, Stephen C. Street
  • Patent number: 9587701
    Abstract: A negative stiffness apparatus includes a fluid filled bellows interposed between a first surface and a second surface wherein the bellows and the first and second surfaces have an orientation of substantial equilibrium between the first and second surfaces. The bellows and the first and second surfaces include other orientations wherein the first and second surfaces are displaced from the orientation of substantial equilibrium and the bellows exerts a displacement force to urge the first and second surfaces further away from the orientation of substantial equilibrium.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: March 7, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Dvir Brand, Avshalom Suissa, Alon Capua
  • Patent number: 9527358
    Abstract: A gas spring end member has an end member axis and is dimensioned for securement to an associated flexible spring member. The gas spring end member includes an end member wall with a base wall portion disposed transverse to the end member axis. An outer wall portion extends axially from along the base wall portion. A mounting wall portion is dimensioned to receivingly engage an associated end of the associated flexible spring member. An end wall portion extends peripherally about the end member axis and operatively connects the outer wall portion and the mounting wall portion to at least partially define an end member volume. An inner wall portion separates the end member volume into an end member reservoir disposed outward of the inner wall portion and an end member chamber disposed inward of the inner wall portion. Gas spring assemblies and suspensions systems are also included.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: December 27, 2016
    Assignee: Firestone Industrial Products Company, LLC
    Inventor: Joshua R. Leonard
  • Patent number: 9394962
    Abstract: A dust cover comprising a bellows tube portion with a plurality of main valleys being of a concave shape opening towards an outer periphery of the tube portion and arranged in a linked manner. Each of the main valleys includes a pair of slope wall portions that slope to opposite axial outsides while going to an outer peripheral side, and the slope wall portion has a slope angle at its outer peripheral portion smaller than a slope angle at its inner peripheral portion.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: July 19, 2016
    Assignee: SUMITOMO RIKO COMPANY LIMITED
    Inventor: Hiroyuki Matsumura
  • Patent number: 9382963
    Abstract: An air spring having an airsleeve, wherein at least one layer of said airsleeve includes the vulcanization product of an elastomer and syndiotactic 1,2-polybutadiene.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: July 5, 2016
    Assignee: FIRESTONE INDUSTRIAL PRODUCTS COMPANY, LLC
    Inventors: Sheel Agarwal, Steven Luo, John Rensel
  • Patent number: 9103395
    Abstract: An elasticity-adjustable air pressure spring designed by the invention solves the technical problems of complex structure and top-to-bottom air impenetrability in the current gas springs. The elasticity-adjustable air pressure spring comprises a spring body, and is characterized in that the spring body is formed by at least one hollow cavity column of a double-layer sidewall structure, a closed cavity containing pressure air is formed between the double layers of the sidewall, the cavity column is corrugated, and at least one vent hole communicated with the cavity is arranged on the sidewall of the cavity column.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: August 11, 2015
    Assignee: XILINMEN FURNITURE CO., LTD.
    Inventor: Ayu Chen
  • Patent number: 9039020
    Abstract: An end member for a gas spring assembly is dimensioned to receivingly engage an end of a flexible wall. The end member can be formed from polymeric material and can include a side wall receiving the end of the flexible wall. The end member can also include a base wall extending transverse to the side wall and dimensioned to abuttingly engage a jounce bumper of the gas spring assembly. The end member can include a mounting ridge or a mounting channel for engaging an associated structural component. A gas spring assembly including such an end member is also included.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: May 26, 2015
    Assignee: Firestone Industrial Products Company, LLC
    Inventors: Michael E. Ratz, Stephen C. Street, Paul P. Koeske
  • Patent number: 8998184
    Abstract: The invention relates to an air bellows for a pneumatic spring, in particular of a commercial vehicle, the air bellows including an axle-side region and a body-side region, wherein the axle-side region is arranged on a plunger and movable by a compression or extension movement between a first, compressed position and a second, extended position, and further including an interior space adapted to be filled with compressed air via a compressed air opening that is connectable to a compressed air line. The air bellows further comprises a valve connected to the atmosphere for ventilating the interior space, wherein by applying compressed air present in the interior space to the valve the valve is moved to a closed position.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: April 7, 2015
    Assignee: SAF-Holland GmbH
    Inventor: Josef Buttner
  • Patent number: 8979077
    Abstract: A gas spring end member is dimensioned for securement along an associated suspension member having an associated planar surface and at least an associated first side surface. The gas spring end member can include a base wall disposed transverse to a longitudinal axis and a bracket wall that extends longitudinally-outwardly from the base wall. The bracket wall can be adapted for operative connection to the associated suspension member such that the gas spring end member can be supported thereon with the base wall disposed in longitudinally spaced-apart relation to the associated planar surface of the associated suspension member. A gas spring assembly including such an end member can be included. A suspension system and a method of installation including such a gas spring assembly can also be included.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: March 17, 2015
    Assignee: Firestone Industrial Products Company, LLC
    Inventors: Stephen C. Street, Paul P. Koeske
  • Patent number: 8967648
    Abstract: An active air suspension system includes an air spring assembly that has a piston airbag and a primary airbag mounted around the piston airbag to provide a variable force and rate dual air spring configuration. The air suspension system is configured to accurately control pressure within the system in a closed-loop manner.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: March 3, 2015
    Assignee: ArvinMeritor Technology, LLC
    Inventor: John Ashley Peterson
  • Patent number: 8955830
    Abstract: A piston assembly includes an outer shell, an end plate and an attachment column. A first flowed-material joint is disposed between and fixedly attaches the end plate and the outer shell to one another such that a fluid-tight seal is formed therebetween. A second flowed-material joint is disposed between and fixedly attaches the attachment column and the end plate to one another such that a fluid-tight seal is formed therebetween. A gas spring assembly and method that include the piston assembly are also included.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: February 17, 2015
    Assignee: Firestone Industrial Products Company, LLC
    Inventor: Stephen C. Street
  • Patent number: 8899561
    Abstract: A flexible sleeve dimensioned for securement to an associated end member for an associated gas spring assembly includes a flexible wall. An annular reinforcement member is embedded within the flexible wall. A retainment element that includes an element surface is disposed along the flexible wall such that at least the element surface is outwardly exposed. At least one gas spring piston, at least one gas spring assembly and at least one method are also included.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: December 2, 2014
    Assignee: Firestone Industrial Products Company, LLC
    Inventors: Paul P. Koeske, Stephen C. Street
  • Patent number: 8869706
    Abstract: A bellows is provided as part of a crossway between two vehicles connected to each other in an articulated manner or as a telescopic gangway, with a material web which is provided with a layer of synthetic material. The material web has a top (upper) side made of a textile and a bottom (under) side made of textile (11, 12). The spacer fibers/pile threads (13) are provided between the top side and the bottom side, such that a space between the top side and bottom side results when the material web is in a non-loaded condition.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: October 28, 2014
    Assignee: Hübner GmbH
    Inventor: Claus-Ekkehard Koukal
  • Publication number: 20140300038
    Abstract: An air spring includes an upper surface plate, a lower surface plate, and a diaphragm connecting the upper surface plate and the lower surface plate. The diaphragm has an annular shape having an opening on an inner circumferential side. In the diaphragm, an upper surface plate contact portion, which is a region defining the opening and being in contact with the upper surface plate, includes a deformed portion elastically deformed to protrude toward the lower surface plate side by contact with a support plate. The deformed portion is in contact with a sliding member located on the lower surface plate side when viewed from the deformed portion.
    Type: Application
    Filed: April 1, 2013
    Publication date: October 9, 2014
    Inventors: Yoshiyuki Kita, Hirokazu Haraguchi
  • 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
  • Publication number: 20140252703
    Abstract: A roll-off piston made of plastic is for an air spring rolling-lobe flexible member (19) of the air spring. The roll-off piston (1) is configured as a plunge piston and has a preferably central support (2) for a stop buffer (3) acting in an axial direction of the air spring. The support (2) is preferably made of steel and can be received in a recess in the roll-off piston. The recess is of complementary configuration to the shape of the support and can be connected to the piston.
    Type: Application
    Filed: April 10, 2014
    Publication date: September 11, 2014
    Applicant: ContiTech Luftfedersysteme GmbH
    Inventors: Djuradj Zec, Boris Balachonzew
  • Publication number: 20140252702
    Abstract: The present invention discloses an air spring comprising a piston, a top plate, a clamp ring, a snap ring, and a flexible member which is affixed to the piston and the top plate, wherein the piston, the top plate and the flexible member define a pressurizable chamber, wherein the snap ring is affixed to the clamp ring, wherein the clamp ring affixes an upper portion of the flexible member to the top plate, wherein the clamp ring affixes the snap ring to the top plate, and wherein the top plate is affixed between the snap ring and the flexible member.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 11, 2014
    Applicant: VEYANCE TECHNOLOGIES, INC.
    Inventors: Mark G. Trowbridge, David A. Palky, David J. Maguire
  • Publication number: 20140225341
    Abstract: Flexible spring members can include a flexible spring wall and at least one girdle hoop. The flexible spring wall can include a plurality of convoluted wall portions disposed in longitudinally-spaced relation to one another. The girdle hoop can take the form of an annular ring that is at least partially formed from a non-metallic material and can be positioned longitudinally between adjacent ones of the plurality of convoluted wall portions. The girdle hoop can be at least partially embedded within the flexible spring wall and can operate to substantially inhibit radially-outward expansion of the flexible spring wall during inflated conditions and/or use. Gas spring assemblies and methods of manufacture can include one or more of such flexible spring members.
    Type: Application
    Filed: February 14, 2014
    Publication date: August 14, 2014
    Applicant: Firestone Industrial Products Company, LLC
    Inventors: Aaron E. Vetor, David D. Jackson, JR.
  • Patent number: 8801422
    Abstract: A machine and method to produce structural elements for the building trade made of cement material with one or more inserts made of polymer material. The machine comprises at least a molding member, a loading unit for loading the inserts and a depositing member to deposit the cement material. The molding member is open at the upper part and the loading unit and the depositing member are selectively positionable above the molding member in order to load and deposit from above, respectively, the inserts and the cement material into the molding member, in order to achieve the structural elements.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: August 12, 2014
    Assignee: S.A.C.M.E. Srl
    Inventor: Luciano Badin
  • Publication number: 20140217656
    Abstract: An air spring having an airsleeve, wherein at least one layer of said airsleeve includes the vulcanization product of a composition that includes an unsaturated chlorinated polymer; and a saturated chlorinated polymer.
    Type: Application
    Filed: May 24, 2012
    Publication date: August 7, 2014
    Applicant: FIRESTONE INDUSTRIAL PRODUCTS COMPANY, LLC
    Inventor: Sheel P. Agarwal
  • Patent number: 8752812
    Abstract: Conversion assemblies and conversion assemblies combined with automotive shock absorbing assemblies for automotive use, such as shocks and struts. There is disclosed herein, in combination, a conversion assembly and an automotive shock absorbing assembly for automotive use, said automotive shock absorbing assembly being selected from the group consisting of shocks and, struts.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: June 17, 2014
    Inventor: Larry J. Verbowski
  • Publication number: 20140042679
    Abstract: An elasticity-adjustable air pressure spring designed by the invention solves the technical problems of complex structure and top-to-bottom air impenetrability in the current gas springs. The elasticity-adjustable air pressure spring comprises a spring body, and is characterized in that the spring body is formed by at least one hollow cavity column of a double-layer sidewall structure, a closed cavity containing pressure air is formed between the double layers of the sidewall, the cavity column is corrugated, and at least one vent hole communicated with the cavity is arranged on the sidewall of the cavity column.
    Type: Application
    Filed: April 24, 2012
    Publication date: February 13, 2014
    Applicant: XILINMEN FURNITURE CO., LTD.
    Inventor: Ayu Chen
  • Publication number: 20130264790
    Abstract: A piston assembly (204) including an integral piston chamber (218) with an increased volume that is maximized by providing a mounting arrangement whereby the piston can be mounted to a structural member (stz) such that the piston chamber (218) surrounds at least two sides of the structural member (stz). The piston chamber (218) can therefore utilize space adjacent the structural member (stz) to which it is mounted thereby resulting in a piston chamber of a greater volume than prior art designs. A gas spring assembly (200) utilizing such a piston is also included.
    Type: Application
    Filed: December 19, 2011
    Publication date: October 10, 2013
    Applicant: Firestone Industrial Products Company, LLC
    Inventor: Joshua R. Leonard
  • Patent number: 8540222
    Abstract: An air spring for a heavy-duty vehicle axle/suspension system includes a bellows chamber operatively connected to a piston chamber. An opening is disposed between the bellows chamber and the piston chamber in order to allow fluid to communicate between the bellows chamber and the piston chamber. The cross-sectional area of the opening and the volumes of the bellows chamber and the piston chamber are tuned in order to optimize the damping characteristics of the air spring.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: September 24, 2013
    Assignee: Hendrickson USA, L.L.C.
    Inventors: Andrew J. Westnedge, Michael J. Keeler
  • Patent number: 8534646
    Abstract: The invention relates to a seat suspension device for a vehicle seat, in particular a commercial vehicle seat, comprising at least one air spring, said air spring being disposed between an upper seat portion of the vehicle seat and a lower seat portion of the vehicle seat, and at least one hose-like member connected to the air spring via a first connection line for an extension volume of the air spring is provided, said hose-like member being arranged along at least one fold of a bellows-like facing extending between an upper seat portion and a lower seat portion of a vehicle seat.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: September 17, 2013
    Assignee: Grammer AG
    Inventors: Rupert Bauer, Nikolaus Haller, Johann Meier, Hubert Wittmann
  • Patent number: 8511652
    Abstract: A gas spring and gas clamper assembly includes a first end member, a second end member, a first flexible wall that at least partially defines a first spring chamber, and a second flexible wall that at least partially defines a second spring chamber. A damper piston and damper rod are operatively connected between the first and second end members and within the first spring chamber. A suspension system that includes a gas spring and gas damper assembly as well as a method of assembly are also included.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: August 20, 2013
    Assignee: Firestone Industrial Products Company, LLC
    Inventors: Pradipta N. Moulik, Graham R. Brookes
  • Patent number: 8474798
    Abstract: An air spring has at least one working space which is filled with compressed air and which is delimited at least partially by a rolling bellows which is fastened at its ends to connecting parts. At least one of its ends, the air spring has a wall which is thicker in relation to the rest of the rolling bellows body, wherein the rolling bellows has, at least one of its thickened ends, a continuously vulcanized layer cover which is folded back to such a length that, after the assembly of the air spring, at least one region of the rolling bellows which is highly loaded by chassis forces falls into the region of the layer cover.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: July 2, 2013
    Assignee: Continental Aktiengesellschaft
    Inventor: Joachim Jeischik
  • Publication number: 20130152284
    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: Application
    Filed: December 14, 2011
    Publication date: June 20, 2013
    Inventors: VINCENT FERRARA, Alexander Reynolds, Kyle Lamson
  • Publication number: 20130147100
    Abstract: An air spring has a rolling-lobe flexible member terminating in a conically-shaped bead defining a conically-shaped opening of the flexible member. A-roll-off piston has an end facing toward the flexible member and has a conical seat formed thereon for receiving the bead of the flexible member to conjointly define therewith an airtight force fit connection. The roll-off piston further has a support shoulder beneath the conical seat whereon the flexible member is supported when deflected and the roll-off piston has an annular groove formed therein between the end thereof and the conical seat. An annular locking member is seatable in the annular groove after assembly of the flexible member on the conical seat so as to hinder the bead from slipping off of the conical seat.
    Type: Application
    Filed: February 7, 2013
    Publication date: June 13, 2013
    Applicant: ContiTech Luftfedersysteme GmbH
    Inventor: ContiTech Luftfedersysteme GmbH
  • Publication number: 20130093132
    Abstract: A gas spring assembly includes an end member, a piston assembly and a flexible sleeve secured therebetween. An end closure secures an end of the flexible sleeve to the piston assembly. A connector fitting connects the end closure to a support post of the piston assembly. The connector fitting includes a fitting passage and a first annular groove. A jounce bumper assembly is supported on the connector fitting. The jounce bumper assembly includes a bumper body and a bumper mount. The bumper mount includes securement pin having a second annular groove. A retaining member is received within the first and second annular grooves such that the jounce bumper assembly can freely rotate relative to the connector fitting while substantially restricting axial displacement of the jounce bumper assembly relative to the piston assembly during such rotation.
    Type: Application
    Filed: April 26, 2010
    Publication date: April 18, 2013
    Applicant: FIRESTONE INDUSTRIAL PRODUCTS COMPANY, LLC
    Inventors: Stephen C. Street, James D. Boomer
  • Patent number: 8397577
    Abstract: A system for measuring and indicating pressure that uses as its pressure sensing element an outer resilient tube, an inner resilient tube, and a rolling diaphragm connecting the inner and outer tubes, and held inside a protective enshrouding structure where pressure applied to the annulus between the tubes causes the diaphragm to deform and roll to axial extend the outer tube by an amount proportional to the applied pressure. The structure has features that enable visual correlation of the partially rolled tube's unrolled state with the applied pressure. The system can be incorporated into a syringe to create a pressure measuring syringe for inflating endotracheal cuffs while providing a reading of the cuff pressure.
    Type: Grant
    Filed: March 6, 2011
    Date of Patent: March 19, 2013
    Inventors: Alexander Henry Slocum, Sr., Alexander Henry Slocum, Jr.
  • Publication number: 20130001840
    Abstract: An elastomer product having an elastomer component, in particular an air spring having a bellows, wherein an electrical component is embedded in the elastomer component of the elastomer product, and the elastomer component including at least one electrically conductive path. The electrical component is located on a carrier material. The electrically conductive path is designed to be elastically flexible and connected to the carrier material and the carrier material is connected to the surrounding elastomer of the elastomer component in a firmly bonded manner.
    Type: Application
    Filed: September 4, 2012
    Publication date: January 3, 2013
    Inventor: Siegfried Reck
  • Publication number: 20120313304
    Abstract: A piston assembly includes an outer shell, an end plate and an attachment column. A first flowed-material joint is disposed between and fixedly attaches the end plate and the outer shell to one another such that a fluid-tight seal is formed therebetween. A second flowed-material joint is disposed between and fixedly attaches the attachment column and the end plate to one another such that a fluid-tight seal is formed therebetween. A gas spring assembly and method that include the piston assembly are also included.
    Type: Application
    Filed: December 28, 2009
    Publication date: December 13, 2012
    Applicant: Firestone Industrial Products Company, LLC
    Inventor: Stephen C. Street
  • 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
  • Publication number: 20120267836
    Abstract: A gas spring end member is dimensioned for securement along an associated suspension member having an associated planar surface and at least an associated first side surface. The gas spring end member can include a base wall disposed transverse to a longitudinal axis and a bracket wall that extends longitudinally-outwardly from the base wall. The bracket wall can be adapted for operative connection to the associated suspension member such that the gas spring end member can be supported thereon with the base wall disposed in longitudinally spaced-apart relation to the associated planar surface of the associated suspension member. A gas spring assembly including such an end member can be included. A suspension system and a method of installation including such a gas spring assembly can also be included.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 25, 2012
    Applicant: FIRESTONE INDUSTRIAL PRODUCTS COMPANY, LLC
    Inventors: Stephen C. Street, Paul P. Koeske
  • Publication number: 20120248667
    Abstract: A modular piston assembly is associated with an air spring assembly that has a bellows roiling over a surface of the piston assembly. The modular piston assembly includes a first piston portion adapted to fasten to an associated air spring bellows. A second piston portion separate from the first portion, is adapted to fasten to an associated mounting component. Interlocking members are provided to secure the first and second piston portions together, and/or any desired intermediate piston portions. Discrete air reservoirs may also be included in the modular piston assembly to increase the volume of the air spring.
    Type: Application
    Filed: April 30, 2012
    Publication date: October 4, 2012
    Applicant: FIRESTONE INDUSTRIAL PRODUCTS COMPANY, LLC
    Inventor: Joshua R. Leonard
  • Patent number: 8272627
    Abstract: Disclosed is an air spring device having a free-standing air spring bellows and an outer guide which is fastened to the air spring bellows by means of an inner clamping ring, wherein the outer diameter of the inner clamping ring is greater than the outer diameter of the air spring bellows in the unpressurized state, and the inner clamping ring generates a radially outwardly pointing encircling bulge in the unpressurized air spring bellows.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: September 25, 2012
    Assignee: Continental Aktiengesellschaft
    Inventors: Holger Oldenettel, Mark Philipps
  • Publication number: 20120217688
    Abstract: A piston for use in forming a gas spring assembly includes a longitudinally extending axis, a first end wall extending approximately transverse to the axis, and an outer side wall extending longitudinally from adjacent the first end wall. The outer side wall includes a first side wall portion that forms a fully circumferential outer surface and a second side wall portion that forms a partially circumferential outer surface that extends longitudinally beyond the fully circumferential outer surface. A gas spring assembly including such a piston is also included.
    Type: Application
    Filed: May 8, 2012
    Publication date: August 30, 2012
    Applicant: FIRESTONE INDUSTRIAL PRODUCTS COMPANY, LLC
    Inventors: Stephen R. Egolf, Andrew Grabarz, Stephen C. Street, Pradipta N. Moulik
  • Publication number: 20120205844
    Abstract: A flexible sleeve dimensioned for securement to an associated end member for an associated gas spring assembly includes a flexible wall. An annular reinforcement member is embedded within the flexible wall. A retainment element that includes an element surface is disposed along the flexible wall such that at least the element surface is outwardly exposed. At least one gas spring piston, at least one gas spring assembly and at least one method are also included.
    Type: Application
    Filed: March 19, 2012
    Publication date: August 16, 2012
    Applicant: FIRESTONE INDUSTRIAL PRODUCTS COMPANY, LLC
    Inventors: Paul P. Koeske, Stephen C. Street