With Means To Vary Preliminary Tension Of Spring Patents (Class 267/89)
  • Patent number: 9796309
    Abstract: A lumbar support assembly disposed on a seat back frame within a vehicle seat and configured to support the back and waist regions of a passenger may include a fixing wire configured to be disposed on the seat back frame, a comfort mat provided with an upper end disposed on a cross wire combined with an upper end of the fixing wire so as to be rotatable and configured to support the back and waist regions of the passenger, a rotating device disposed on the fixing wire and rotating a lower end of the comfort mat toward the back region of the passenger, and an operating device disposed on the fixing wire and transforming the rotating device to protrude toward the comfort mat.
    Type: Grant
    Filed: November 7, 2015
    Date of Patent: October 24, 2017
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Daechang Seat Co., Ltd.
    Inventors: Hun Woong Song, Chan Ki Cho, Jin Oh Kim
  • Patent number: 9427093
    Abstract: Methods and systems for no-glue pocketed spring unit construction. Rows of pocketed springs, preferably arranged into modules of more than two pocketed springs surrounding a central hole, are welded together when paired probes and anvils press layers of pocketed spring fabric from the rows of pocketed springs together and a welding pulse of current is transmitted through wires on the probes to heat the wire it is pressed against the fabric. Non-stick material interposed between the wires and the fabric prevents melted fabric from sticking to the wires.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: August 30, 2016
    Inventor: Martin Wolfson
  • Patent number: 9409506
    Abstract: A conveyance seat includes: a seat frame; a seat pad that covers the seat frame; and a seat cover that covers the seat pad and that is fixed to the seat frame. The seat pad has a U-shaped portion formed by a supporting portion, a side surface portion that is continuous with the supporting portion, and a tension adjusting portion that is continuous with the side surface portion, the tension adjusting portion having a protruding portion as a portion of the tension adjusting portion that protrudes toward the seat cover. The protruding portion abuts against the seat cover.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: August 9, 2016
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Hideo Sahashi
  • Patent number: 8918928
    Abstract: The present invention relates to a bed system which comprises a mattress supporting structure. The bed system comprises a height adjustment system which comprises at least one rotatable multi-angular transverse beam comprising a plurality of transverse beam sides and an eccentric rotation axis which is accessible from outside said outer frame. The height adjustment system further comprises a rotation imparting member which is accessible from outside the outer frame and provided for rotating said at least one rotatable transverse beam about its eccentric axis. Said rotation imparting member is displaceable between a first and a second position. The first position is provided for rotating said at least one rotatable transverse beam about its eccentric axis and said second position is provided for blocking said at least one rotatable transverse beam in a desired height position with respect to said outer frame.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: December 30, 2014
    Assignee: LS Bedding
    Inventors: Frank Verschuere, Peter De Meyer
  • Patent number: 8899562
    Abstract: Apparatus for dispersing impact forces are provided. An apparatus for dispersing impact forces includes a housing having a contact end with an aperture; a contact member located at least primarily inside the housing; a biasing member biasing the contact member toward the housing aperture; and a sensor. The housing contact end is secured to an impact receiving surface. The sensor initiates an alert when an impact force received on the impact receiving surface causes the contact member to shift a predetermined distance from an initial position.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: December 2, 2014
    Inventor: Fielding B. Staton
  • Patent number: 8857799
    Abstract: Encased coil units with advance conforming properties have various interconnections and structures between individually encased or wrapped coils. In the various embodiments, encasement structures between coils such as closure or attachment of sheet material or fabric, which encase the coils, are configured to allow and enhance independent movement of coils with respect to adjacent coils and remote coils of the unit. Modifications in the sheet material or fabric which encases the coils include variations in the points of connection or disconnection between adjacent coils, proximate to top ends of the coils to allow more freedom of movement of the top or upper ends of the coils and with respect to adjacent coils, and to reduce load transfer or cratering of the coil springs about the locus of the force vector.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: October 14, 2014
    Assignee: Sealy Technology, LLC
    Inventor: Steven Tyree
  • Patent number: 8789818
    Abstract: Apparatus for dispersing impact forces are provided. Provided in one embodiment is an apparatus for dispersing impact forces includes a housing having a contact end with an aperture; a contact member located at least primarily inside the housing; a biasing member biasing the contact member toward the housing aperture; and means for securing the housing contact end to a surface. When an impact force is received upon the impact receiving surface, the force is at least partially transferred to the contact member, which in turn temporarily alters the biasing member, which subsequently returns the contact member to an initial position. The return of the contact member imparts a second force on the impact receiving surface, which is less than the impact force transferred to the contact member.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: July 29, 2014
    Inventor: Fielding B. Staton
  • Patent number: 8740196
    Abstract: A linkage comprises a first rounded end providing a complimentary profile configured to mate with an inner radius of a loop element in a first drawbar spring, and a second rounded end opposite the first rounded end. The second rounded end provides a complimentary profile configured to mate with an inner radius of a loop element in a second drawbar spring. The linkage is configured to be positioned between the loop element in the first drawbar spring and the loop element in the second drawbar spring such that the first rounded end is mated with the loop element in the first drawbar spring and the second rounded end is mated with the loop element in the second drawbar spring to mechanically couple the first drawbar spring in series with the second drawbar spring.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: June 3, 2014
    Inventor: Jay Rodger Elrod
  • Patent number: 8695955
    Abstract: Apparatus for inhibiting glass breakage and glass products incorporating such apparatus are provided. In one embodiment, an apparatus for inhibiting glass breakage includes a housing having a contact end with an aperture, a contact member disposed at least primarily inside the housing, and a biasing member. The biasing member biases the contact member toward the housing aperture. In another embodiment, a glass product includes a sheet of glass and an apparatus for inhibiting glass breakage. The apparatus for inhibiting glass breakage includes: (a) a housing having a contact end with an aperture; (b) a contact member disposed at least primarily inside the housing; and (c) a biasing member biasing the contact member toward the housing aperture. The housing contact end is coupled to the sheet of glass, and the contact member rests upon the sheet of glass for receiving an impact force from the sheet of glass.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: April 15, 2014
    Inventor: Fielding B. Staton
  • Publication number: 20130334746
    Abstract: A suspension device (510?) for a bed base or a seat, comprising an upper section fitted with a top plate capable of supporting a mattress, a lower section (520?) adapted to be attached to a bed base, said lower section being connected to the upper section by a suspension means, a mobile element (540?), which is movable relative to the suspension device so that said mobile element can be shifted at least between a first position and a second position for modifying a stiffness of the suspension device. The mobile element (540?) is fitted with at least one first elastic body which is configured to deform elastically when the mobile element is brought from one position to the other.
    Type: Application
    Filed: May 22, 2013
    Publication date: December 19, 2013
    Inventors: Jacques LOBRY, Pascal LOBRY, GĂ©raud CAILLEY
  • Patent number: 8245896
    Abstract: A hand-operated drive-in power tool for fastening elements is disclosed. The tool has a drive arrangement for a drive-in ram displaceably arranged in a guide, which has at least one drive element for the drive-in ram made at least partially of an elastomer that is tensible via a tensioning device. To improve the drive-in power tool, a heating device for the at least one elastomer drive element is provided.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: August 21, 2012
    Assignee: Hilti Aktiengesellschaft
    Inventors: Hans Gschwend, Robert Spasov
  • Patent number: 7823232
    Abstract: Device for preventing decubitus, consisting of a number of adjacent members (1) which are attached to a base and which members (1) are covered with a layer (2) of elastic material which defines a reclining surface for a patient. Each member comprises at least one elastic panel whose two opposite ends are connected to one another via a pulling element (6, 13) in order to pull the two ends towards one another, while bending the said panel, so that the vertical height of the member increases. The device also comprises a control device (3) for activating the pulling element for one or more of the said members as desired. The pulling element preferably consists of a wire, rod or strip of memory metal, which can assume its original contracted position by means of heating.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: November 2, 2010
    Assignee: Hans Voorwinde Beheer B.V.
    Inventors: Cornelis Willem Tinke, Hans Voorwinde
  • Publication number: 20100033856
    Abstract: A total length of members (11, 13, 15, 17, 19, 21, 23, 25) formed in an X-axis direction of a spring (1) is larger than a spring length of the spring (1) and larger than a total length of members (12, 14, 16, 18, 20, 22, 24) formed in a Y-axis direction. With this arrangement, spring constants of respective axes can be increased, and a spring constant in a direction R can be set appropriately and freely within a wider range.
    Type: Application
    Filed: December 26, 2006
    Publication date: February 11, 2010
    Inventors: Shingo Uchiyama, Makoto Sato, Fusao Shimokawa
  • Patent number: 7194777
    Abstract: A mattress comprising coil springs arranged as spring units in covering pockets, a so-called pocket mattress, is provided. The spring units of the mattress are arranged in succession in elongate strings, the mattress comprising a plurality of such interconnected strings arranged side by side. A distinguishing feature of the mattress is that at least one spring unit within at least one string has a height that differs from the height of the other spring units within the same string. A method and a device for manufacturing such a mattress are also provided.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: March 27, 2007
    Inventors: Kenneth Edling, Mikael Johansson
  • Patent number: 7021610
    Abstract: A spring device comprising at least one annular support plate defining a ring with a central axis; a plurality of circumferentially spaced, parallel oriented coil springs disposed about the at least one annular plate; and, a plurality of lock assemblies spaced about the plate. Each of the lock assemblies being in position within a spring cavity of one of the coil springs to allow additional springs to be provided on the spring device. In addition, the lock assemblies are dimensioned so that the coil spring is retained in a prestressed condition.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: April 4, 2006
    Assignee: Barnes Group Inc.
    Inventors: Philip G. Costello, Frank R. Hrovat
  • Patent number: 6966091
    Abstract: An innerspring assembly comprising at least two sets of coil springs. In one embodiment, a first set of coil springs has a first elevation, a second set of coil springs has a second elevation different from the first elevation, and wherein one of the first and second sets of coil springs is compressed upon initial loading of the innerspring assembly, and wherein each of the first and second sets of coil springs is compressed upon continued loading of the innerspring assembly. In another embodiment, a first set of coil springs is pre-loaded to a first compressed state and a second set of the coil springs is pre-loaded to a second compressed state that exhibits a different degree of firmness relative to the first compressed state. In yet another embodiment, a first set of the coil springs has a barrel-shaped outer profile while a second set of the coil springs has an hourglass-shaped outer profile.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: November 22, 2005
    Assignee: Barber Manufacturing Company, Inc.
    Inventor: James R. Barber
  • Patent number: 6966549
    Abstract: A spring device comprising at least one annular support plate defining a ring with a central axis; a plurality of circumferentially spaced, parallel oriented coil springs disposed about the at least one annular plate; and, a plurality of lock assemblies spaced about the plate. Each of the lock assemblies being in position within a spring cavity of one of the coil springs to allow additional springs to be provided on the spring device. In addition, the lock assemblies are dimensioned so that the coil spring is retained in a prestressed condition.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: November 22, 2005
    Assignee: Barnes Group, Inc.
    Inventors: Philip G. Costello, Frank R. Hrovat
  • Publication number: 20040104523
    Abstract: A spring device comprising at least one annular support plate defining a ring with a central axis; a plurality of circumferentially spaced, parallel oriented coil springs disposed about the at least one annular plate; and, a plurality of lock assemblies spaced about the plate. Each of the lock assemblies being in position within a spring cavity of one of the coil springs to allow additional springs to be provided on the spring device. In addition, the lock assemblies are dimensioned so that the coil spring is retained in a prestressed condition.
    Type: Application
    Filed: September 30, 2002
    Publication date: June 3, 2004
    Applicant: Barnes Group, Inc., a corp. of Delaware
    Inventors: Philip G. Costello, Frank R. Hrovat
  • Patent number: 6575439
    Abstract: A spring device comprising a pair of spaced-apart first and second annular support plates defining a ring with a central axis; a plurality of circumferentially spaced, parallel oriented coil springs disposed between said annular plates; and, a plurality of guide assemblies located at circumferentially spaced positions around said ring, each of the guide assemblies including a first tab extending from one of the plates, a second top extending from the other of the plates to form a generally sliding contact between the first and second tabs as the plates move vertically to compress and/or release the coil springs wherein the first tab has a guide slot extending in a direction perpendicular to the plates and the second tab carries an assembled elongated guide member extending through the slot to guide vertical movement between the plates.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: June 10, 2003
    Assignee: Barnes Group Inc.
    Inventors: Philip G. Costello, Frank R. Hrovat
  • Publication number: 20030075846
    Abstract: A damped sleeve having a damping layer attached to a backing layer is disclosed. The damping layer is formed from a non-woven energy absorbing felt and is attached to the backing layer by lines of attachment which define pockets between the layers. The layers are positioned coaxially around an axis and define a central space for receiving elongated items to be protected from vibration. Resilient filamentary support members are arranged between the damping and backing layers to support the layers radially in spaced relation relative to the axis. The support members may be helically wrapped around the axis, circumferentially positioned or arranged in a zig-zag pattern transversely to the axis. A slit in the layers provides access to the central space.
    Type: Application
    Filed: August 8, 2002
    Publication date: April 24, 2003
    Inventors: Samuel B. Fryberger, Brian M. Snyder
  • Publication number: 20030057617
    Abstract: An exemplary pocket spring assembly comprises a plurality of elongate fabric tubes disposed adjacent each other. Each fabric tube has a plurality of pockets, with at least some of the pockets of adjacent fabric tubes being welded together at midpoints on the adjacent pocket. Further, a spring is disposed in each of the pockets.
    Type: Application
    Filed: October 8, 2002
    Publication date: March 27, 2003
    Applicant: Springquilt Industries Ltd.
    Inventor: Milton Zysman
  • Publication number: 20020011698
    Abstract: An exemplary pocket spring assembly comprises a plurality of elongate fabric tubes disposed adjacent each other. Each fabric tube has a plurality of pockets, with at least some of the pockets of adjacent fabric tubes being welded together at midpoints on the adjacent pocket. Further, a spring is disposed in each of the pockets.
    Type: Application
    Filed: July 27, 2001
    Publication date: January 31, 2002
    Inventor: Milton Zysman
  • Patent number: 6315275
    Abstract: An exemplary pocket spring assembly comprises a plurality of elongate fabric tubes disposed adjacent each other. Each fabric tube has a plurality of pockets, with at least some of the pockets of adjacent fabric tubes being welded together at midpoints on the adjacent pocket. Further, a spring is disposed in each of the pockets.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: November 13, 2001
    Assignee: Furniture Row Technologies, LLC
    Inventor: Milton Zysman
  • Patent number: 6186483
    Abstract: A bedding or furniture spring product comprising a plurality of coil springs arranged in linear rows and columns. Each of the coil springs is preloaded by an endless strip of fabric, the strip of fabric encircling the exterior of one of the coil springs. The interior surface of the strip of fabric may be coated with a non-slip material so as to prevent the strip from falling or moving off the coil spring. Alternatively, the coil spring itself may be coated with a non-slip material. The strip of fabric leaves a portion of the end turns of the coil springs uncovered enabling the coil springs to be secured to a wire grid as for example by being wrapped around or clipped or laced to wires of the grid assembly. Alternatively, traditional hand 8-way tie may be used to connect the precompressed coil springs together and to a frame.
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: February 13, 2001
    Assignee: L&P Property Management Company
    Inventor: Larry I. Bullard
  • Patent number: 6131892
    Abstract: Disclosed are pocketed upholstery springs in strip form characterized by placement of the closing seam midway between the ends of the springs of the strip, with the marginal flaps of the pocket strip fabric outwardly of the closing seam folded over as a two-ply belt and incorporated into the cross seams which define the pockets about the springs. Adjacent rows of such strips are joined together by tacking through their respective belts at the cross seams to form two-row modules for ease of mattress/cushion assembly, or to form full-size mattress/cushion constructions by joining row upon row.
    Type: Grant
    Filed: July 6, 1999
    Date of Patent: October 17, 2000
    Assignee: Sidhil Technology, LLC
    Inventor: Walter Stumpf
  • Patent number: 6029957
    Abstract: In the production of a pocket spring assembly, fabric is secured along multiple parallel seam zones so as to form a quilt defining a plurality of parallel fabric tubes connected to each other at uniformly spaced intervals. The tubes so formed are supported on guides extending longitudinally through the tubes, portions of the quilt are repeatedly drawn from the guides at their one ends and folds formed in each layer of fabric in the drawn off portion are secured to form pockets from the drawn off portions of the quilt, and precompressed coil springs are passed through the guides and released into the pockets between each drawing of the quilt, with their axes perpendicular to both the axes of the fabric tubes and the direction of advancement of the quilt, so that secured folds in the fabric of the tubes in front of and behind the released springs retain them in the pockets.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: February 29, 2000
    Assignee: Furniture Row Technologies, LLC
    Inventor: Milton Zysman
  • Patent number: 5924681
    Abstract: A bedding or furniture spring product comprising a plurality of coil springs arranged in linear rows and columns. Each of the coil springs is preloaded by an endless strip of fabric, the strip of fabric encircling the exterior of one of the coil springs. The interior surface of the strip of fabric may be coated with a non-slip material so as to prevent the strip from falling or moving off the coil spring. Alternatively, the coil spring itself may be coated with a non-slip material. The strip of fabric leaves a portion of the end turns of the coil springs uncovered enabling the coil springs to be secured to a wire grid as for example by being wrapped around or clipped or laced to wires of the grid assembly. Alternatively, traditional hand 8-way tie may be used to connect the precompressed coil springs together and to a frame.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: July 20, 1999
    Assignee: L&P Property Management Company
    Inventor: Larry I. Bullard
  • Patent number: 5490714
    Abstract: The invention relates to an improved metal crib structure for an armchair, having a fixed frame, constituted by two opposite lateral elements and a front and a back elements; a cradle-shaped seat support frame of the seating plane oscillating about a horizontal oscillation axis on the fixed frame, which has two opposite v-shaped lateral elements and straight front and back elements; two helix springs oppose oscillation, mounted between the fixed frame and the seat support frame the crib structure further a stiffening device for the helix springs and apparatus for locking the seat support frame in a horizontal position.
    Type: Grant
    Filed: August 8, 1994
    Date of Patent: February 13, 1996
    Assignee: Industrie Natuzzi S.p.A.
    Inventor: Alberto de Santis
  • Patent number: 5306086
    Abstract: A spring assembly particularly adapted for use in vehicular automatic transmissions comprising a pair of annular plates having a multiplicity of circumferentially spaced, parallel-oriented compression springs mounted therebetween. The annular plates are interconnected at circumferentially spaced points around their periphery so that the compression springs are held in a precompressed state. The interconnection means are designed so as to permit the overall axial length of the spring assembly to constrict as the springs are compressed. Two alternative embodiments of the present invention are disclosed: a first embodiment wherein the annular plates are made from stamped sheet metal and a second embodiment wherein the annular plates are made from injected molded plastic.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: April 26, 1994
    Assignee: Kuhlman Corporation
    Inventors: Henry Orlowski, Richard Margaritondo
  • Patent number: 5063625
    Abstract: A mattress construction includes upper and lower structures defining generally parallel planes, and coil springs operatively connected to such structures and located between those lanes, and with at least one of the upper and lower structures including a first tensionable sheet; a member or members extending at the periphery of the mattress and connected with the first tensionable sheet to interact therewith and transmit force for tensioning the tensionable sheet; and a device for adjusting the tension exerted by said member or members. The mattress construction also enables treating of a patient having a spinal condition for which traction is recommended by suspending the patient's body to extend generally horizontally on a "trampoline" grid mattress surface which interacts with the mattress border perimeter structure to create a surface lift and therefore stretch reflex on the patient's body.
    Type: Grant
    Filed: May 15, 1990
    Date of Patent: November 12, 1991
    Inventor: Leroy R. Perry
  • Patent number: 4986518
    Abstract: An encapuslated spring for use with mattresses, cushions, or the like, including a spring enclosed within flexible sheet material, the material being formed in a tubular configuration such that its longitudinal edges are in a flat overlap configuration. The flat overlap configuration reduces a phenomenon known as false loft.
    Type: Grant
    Filed: May 19, 1989
    Date of Patent: January 22, 1991
    Assignee: Simmons U.S.A. Corporation
    Inventor: Walter Stumpf
  • Patent number: 4886250
    Abstract: An adjustable coil seat is provided which utilizes the combination of a plurality of parallel rows of sinuous springs which are connected at opposite ends of the frame, at least one row of tapered conical coil springs in transverse relation to the sinuous springs and positioned in supporting relationship under the sinuous springs at a location between the ends of the sinuous springs, and a rigid cross-support beam structure which supports the bottom end of the tapered coiled springs. The cross support structure may be of adjustable height to vary pretension of the spring mechanism.
    Type: Grant
    Filed: August 7, 1987
    Date of Patent: December 12, 1989
    Assignee: Schweiger Industries, Inc.
    Inventor: Thomas H. Lucas
  • Patent number: 4858459
    Abstract: An inertia force balancing apparatus for a machine haivng a reciprocating heavy object, such as a Pilger rolling mill provided with a heavy object stand having a pair of Pilger mill rolls and horizontally supported such as to be reciprocable and with a drive device for imparting reciprocating motion to the Pilger mill stand by a motive power converted from rotational motion, into reciprocating motion. A spring device secured at its end to the heavy object and adapted to balance the inertial force of the reciprocating motion of the heavy object. A control device is provided for changing the spring force of the spring device in accordance with the rotational speed of the rotational motion of the drive device.
    Type: Grant
    Filed: July 29, 1987
    Date of Patent: August 22, 1989
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventor: Muneharu Takahashi
  • Patent number: 4682763
    Abstract: An adjustable cushion support device for adjusting the holding pressure applied to support a seat cushion. The adjustable support device includes a frame member having a first end and a second end to support the cushion. A spring member is mounted on the frame member between the first end and the second end for flexibly supporting a load. A control mechanism is mounted on the frame member and is connected to the spring member for adjusting the holding pressure applied to the spring member. The control mechanism includes an enforcing member pivotally supported on the frame member for pushing the spring member upwards, a biasing member for biasing the enforcement member, and an operating lever to control the inclination of the biasing member to regulate the holding pressure applied to the spring member.
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: July 28, 1987
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Kenichi Kazaoka, Hiroshi Okazaki, Yasuhisa Inaba
  • Patent number: 4671569
    Abstract: A resilient back-up mechanism for a seat back structure of a vehicle seat for supporting a waist portion of a passenger sitting on the seat. An adjusting member is mounted on a seat back frame for pivotal movement and back-up means is also pivotably mounted on the seat back frame. An adjustable spring having one end engaged with the adjusting member and the other end engaged with the back-up means applies a resilient support to the back-up means against rearward movement. The amount of resilient support may be adjusted by swingably moving the adjusting member by an actuating means.
    Type: Grant
    Filed: September 17, 1985
    Date of Patent: June 9, 1987
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Kenichi Kazaoka, Hiroshi Okazaki
  • Patent number: 4588172
    Abstract: In order to soften or stiffen the support offered by an elastic sheet, and in particular a vehicle seat back, the device comprises a flat spring (1) which is at each of its ends connected to the sheet (38), and fixed to a case (2, 3) containing an inclined disc (10, 12). Two discs are fixed to a control rod (24) which is mounted in the frame (36) of the seat and, when this rod is rotated, they cause the cases to be pivoted symmetrically, so that the spring is extended and stiffens the sheet or is shortened and renders the seat more soft.
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: May 13, 1986
    Assignee: Cycles Peugeot
    Inventors: Francois Fourrey, Patrice Ciciliani
  • Patent number: 4547918
    Abstract: The present invention relates to a body supporting network suitable for use with a load supporting system. The network includes at least first and second pluralities of elongate support members securable with the system for supporting a load. The first and second support members respectively extend in first and second directions to provide potential load receiving intersections where the first support members cross the second support members. The network includes adjustment means to vary network pressure response at each intersection and to permit changes in network contour. The network includes interconnecting means for connecting the elongate members at the intersections to maintain network integrity when the network is subjected to the load.
    Type: Grant
    Filed: August 16, 1983
    Date of Patent: October 22, 1985
    Assignee: Ontario Crippled Children's Centre
    Inventors: Frederick D. Ginpil, Morris Milner, John W. Senders
  • Patent number: 4162807
    Abstract: A vehicle seat of the type having a seat back with a plurality of transverse serpentine springs therein is provided with a regulating apparatus for adjusting the firmness of the lower most springs to adjust the firmness of the seat back in the lumbar region. A torsion spring is wrapped about a vertically extending post in the lower corner of the seat back with the ends thereof operatively engaged with a lumbar plate engaging the seat spring adjacent the lower center portion of the seat back and with an intermediate portion of the spring extending outwardly from the post in engagement with a rotatable cam having surfaces of different radii engagable with the intermediate portion of the spring to vary the force of the torsion spring on the seat spring.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: July 31, 1979
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventor: Noboru Yoshimura
  • Patent number: 4162063
    Abstract: The typical helical springs used to support the bed within the frame of a trampoline or the like are modified to incorporate adjustable hooks threadedly anchored within the springs at one end so that their overall length, and thus the tension on the bed, can be varied and overstretching accommodated. Two principal versions are disclosed, the more preferred one including an additional inner spring biasing the adjustable hook to a retracted position.
    Type: Grant
    Filed: January 15, 1976
    Date of Patent: July 24, 1979
    Assignee: Nissen Corporation
    Inventors: George P. Nissen, Harlan J. Kelly
  • Patent number: 4111070
    Abstract: A spring resistance cartridge assembly for a valve actuator is disclosed which offers resistance to movement in either direction of an axial member extending therein. The cartridge assembly has a base plate securable to an axial member and an opposing fixed plate which is secured in a non-movable position. Between the base plate and the fixed plate are two compression plates having spring members trapped therebetween. Bolts and studs attach the compression plates one to each, the base plate and the fixed plate.
    Type: Grant
    Filed: April 4, 1977
    Date of Patent: September 5, 1978
    Assignee: Dresser Industries, Inc.
    Inventor: Andrew Stratienko