Resilient Leg Integral With Bottom Or Back Patents (Class 297/294)
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Patent number: 8893326Abstract: A frame suitable for use in a cradle for small children, or in similar devices, where a structure for containing a dynamic load requires support, consists of two flexible longitudinal laminae, parallel one to another and joined by one or more crosswise laminae. The longitudinal laminae are curved in a more or less central part of their length so forming a first section that rests on the ground and a second section inclined at an angle determined in relation to the first section to sustain the containing structure. In the curved part and along the whole of the second section the longitudinal laminae are subjected to torsion opposite in sign such as to incline them towards the inside of the frame; this lessens their flexibility sufficiently to limit elongation of the flexor oscillations.Type: GrantFiled: December 9, 2009Date of Patent: November 25, 2014Assignee: Bombol LimitedInventor: Frederic Frans Petrus Gooris
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Patent number: 8888182Abstract: In the specification and drawings a chair is described and shown with a resiliently flexible frame having a front seat support; a seat slidably engaged to the front seat support; and a back rotatably engaged to the frame, the back being rotatably engaged to the seat.Type: GrantFiled: October 21, 2013Date of Patent: November 18, 2014Assignee: Synergy Product Development, Inc.Inventor: Dragomir Ivicevic
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Patent number: 8851564Abstract: A chair with a foldable desk includes a support leg having a crossbar. A seat plate installed above said support leg includes an upper seat, a lower cover and a coupler into which the crossbar is rotatably inserted. The seat plate rotates between a vertical position and a horizontal position. A back installed above a rear side of the seat plate is capable of tilting forward and rearward with tilting means. A desk installed above a side of the support leg includes an upper plate with an attachment member on its bottom. The upper plate may swing between an upper position and a lower position within an angle range.Type: GrantFiled: November 18, 2011Date of Patent: October 7, 2014Inventor: Won ho Seo
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Patent number: 8657374Abstract: There is provided a chair (101) comprising: a seating portion (102) for occupation; a base portion (103) for location upon a support surface; and a connecting portion (104) connectedly extending between said seating portion (102) and said base portion (103); wherein said connecting portion (104) is configured to provide a degree of freedom of the position of said seating portion (101) relative to said base portion (103), such that said seating portion (102) is movable between a default unloaded position relative to said base portion (103) and each of a plurality of available loaded positions relative to said base portion (103), whereby when unoccupied, said seating portion (102) is in said default unloaded position relative to said base portion (103), and when occupied, said seating portion (102) is in one of said plurality of available loaded positions relative to said base portion (103), whereby said chair is configured to dynamically respond to changes in the posture of an occupant.Type: GrantFiled: June 17, 2009Date of Patent: February 25, 2014Inventor: Thomas Oliver Duncan Higgs
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Publication number: 20140042788Abstract: In the specification and drawings a chair is described and shown with a resiliently flexible frame having a front seat support; a seat slidably engaged to the front seat support; and a back rotatably engaged to the frame, the back being rotatably engaged to the seat.Type: ApplicationFiled: October 21, 2013Publication date: February 13, 2014Applicant: SYNERGY PRODUCT DEVELOPMENT, INC.Inventor: Dragomir Ivicevic
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Patent number: 8282166Abstract: A chair comprising, a base structure including two rear tubular elements open at the top, a backrest having two tubular portions open at the bottom and aligned to said tubular elements of the base structure, and two elastic devices, each of which has a top support inserted in a tubular portion of the backrest, a bottom support inserted in the corresponding tubular element of the base structure, and an elastic element flexurally deformable to enable tilting between the top support and the bottom support, wherein each of said elastic devices comprises a plurality of sectors stacked on top of one another and arranged between the top support and the bottom support, and wherein, in a resting position of the elastic element, a plurality of slits are formed on the rear side of each elastic device between each pair of adjacent sectors.Type: GrantFiled: November 5, 2009Date of Patent: October 9, 2012Assignee: Pro-Cord S.p.A.Inventor: Giancarlo Piretti
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Patent number: 7384100Abstract: A flexible chair that includes a seat member with seat bottom and back rest portions, first and second pairs of legs, and a plurality of cross members. The pair of first legs are pivotly connected to rearward positions of the seat bottom portion and extend downwardly and forwardly from the seat bottom portion. The pair of second legs are pivotly connected to forward positions of the seat bottom portion and extend downwardly and rearwardly from the seat bottom portion, such that the first legs cross the second legs. The plurality of cross members connect the first and second legs together such that the seat member is rearwardly reclinable against a resilient force provided by at least one of the first pair of legs, the second pair of legs and the plurality of cross members.Type: GrantFiled: May 6, 2005Date of Patent: June 10, 2008Inventors: Charles O. Perry, Marco C. Perry
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Patent number: 6837539Abstract: A chair and tablet combination has a tablet movable from a generally horizontal, operative position above the seat and in front of the backrest to a vertical stored position beside the chair. The chair may have upright and reclined positions for the occupant, and the tablet remains stationary when the chair moves from one position to another.Type: GrantFiled: December 22, 2003Date of Patent: January 4, 2005Assignee: Chromcraft Corp.Inventor: David Casey
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Patent number: 6786548Abstract: A synchrotilt chair includes a base, a back, a seat, and a link(s) pivoted to a rear of the base and to a bottom of the back to form a four-bar linkage arrangement. In one form, the chairs are nestable and stackable for dense storage. In another form, the chairs are desk-type pedestal chairs. Several of the structural support members of the chair are gas-assisted injection molding to form a hollow tubular perimeter frame that is lightweight, strong, and dimensionally-accurate A flexible panel is integrally molded between opposing sides of the perimeter frame. Armrests are pivoted to the back and have a shape configured to allow nested stacking while also providing excellent comfort, durability, and style. Also, the armrests are movable to remote storage positions to provide unobstructed side access to the seat of the chair.Type: GrantFiled: September 26, 2002Date of Patent: September 7, 2004Assignee: Steelcase Development CorporationInventors: Peter J. Pearce, Kurt R. Heidmann, Robert J. Battey, Dale M. Groendal, Bruce M. Smith
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Patent number: 6634717Abstract: A tilting chair comprising: a support board integrating a seat and back support to be elastically transformable backwards when a user places pressure onto the back support; a frame having a back support part, horizontally coupled at an external surface of the back support, a pair of rear legs extending from both left and right sides of the back supporting part downwards the floor, a pair of feet bent at ends of the rear legs and extending forwardly along the floor surface, a pair of front legs extending upwardly from the front ends of the feet, a front side seat support part bent and extending at both upper ends of the front legs to support the front portion of the seat, and a rear side seat support part connecting a center portion of the rear legs to support the rear portion of the seat; and flanges and coupling units respectively assembled at an external surface of the back support part and the lower surface of the seat to make a user feel comfortable because the back support is smoothly tilted backwards whType: GrantFiled: November 15, 2001Date of Patent: October 21, 2003Assignee: Fursys IncorporationInventor: Dong-Yul Kown
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Patent number: 6412869Abstract: A synchrotilt chair includes a base, a back, a seat, and a pair of parallel links pivoted to a rear of the base and to a bottom of the back to form a four-bar linkage arrangement. A spring arrangement includes leaf springs that extend between each link and the base to bias the link and in turn the back and seat toward an upright position, with the back and seat pivoting with a synchronous motion upon recline of the back. The base, the back, the seat, and the links are shaped to receive identical chairs along a stacking direction to form a densely nested stacked arrangement for compact storage. The base has a distinctive horizontal U-shaped mid-frame structure defining a plurality of corners, and further having up legs and down legs extending upwardly and downwardly, respectively, from each of the corners, with the pair of links attached to the two rearmost ones of the up legs.Type: GrantFiled: May 27, 1999Date of Patent: July 2, 2002Assignee: Steelcase Development CorporationInventor: Peter Jon Pearce
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Patent number: 5887945Abstract: An infant seat consists of collapsible and intersecting frame members providing for a substantial base to accommodate elevation of an infant maintained therein. One of the frame members is articulated with the two pieces thereof being interconnected by a spring such that the seat itself may be caused to reciprocate or "rock." Wheels at one end of the base accommodate ease of movement of the infant seat. A toy bar is adapted for selective interconnection with the frame for the presentation of an array of toys over the infant. The frame members are collapsible upon themselves for ease of storage.Type: GrantFiled: October 20, 1997Date of Patent: March 30, 1999Assignee: Summit International, Ltd.Inventor: Mark A. Sedlack
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Patent number: 5071191Abstract: A chair comprising a combination of metal and wooden members provides a pleasing aesthetic warm appearance and a durable structure with a pivotal rocking action for the seat and backrest. A cut-out portion of the front leg houses a rectangular metal post constituting a metal bracket to support the pivotal function of a frame for the seat and backrest. A plate or panel can overlay the metal post inset in the front leg to retain an overall substantially wooden appearance to the chair.Type: GrantFiled: April 16, 1990Date of Patent: December 10, 1991Inventor: Roger K. Leib
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Patent number: 4946224Abstract: A chair comprising a combination of metal and wooden members provides a pleasing aesthetic warm appearance and a durable structure with a pivotal rocking action for the seat and backrest. A cut-out portion of the front leg houses a rectangular metal post constituting a metal bracket to support the pivotal function of a frame for the seat and backrest. A plate or panel can overlay the metal post inset in the front leg to retain an overall substantially wooden appearance to the chair.Type: GrantFiled: March 21, 1988Date of Patent: August 7, 1990Inventor: Roger K. Leib
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Patent number: 4786105Abstract: The present invention provides a chair with a seat cushion thickened toward the front thereof, and thinned toward the rear, positioned on a support frame having a pair of legs extending down to a pair of curved rails which flair apart from one another toward the rear thereof. These rails extend forward sufficiently that the chair can be tilted forward along the rails on a horizontal surface until the top of the seat cushion slopes downward, and these rails extend rearward sufficiently such that the chair can be tilted rearward therealong until the seat cushion top again slopes downward. The backrest extending from underneath the cushion, and then upward therefrom, carries a cushion which is thickened toward the top thereof and thinned toward the bottom. This cushion is adjustably positionable up or down along the backrest to be available to be positioned against a user's lumbar region depending on the length of the user's back.Type: GrantFiled: February 24, 1988Date of Patent: November 22, 1988Assignee: All Day Chair CompanyInventors: Kelly J. Sheehan, Dennis A. Woggon
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Patent number: 4674795Abstract: A chair frame for supporting a seat and seat back in a novel manner. The material of the seat, such as fabric or leather, is supported by the frame in partial tension to avoid sagging and to allow independent torsional movement of the seat portions supporting each leg of the chair user. The chair frame geometry and the tensioned seat provide a flexible chair that provides a new seating experience that combines lounge and rocking chair type characteristics. Additionally, the chair frame can be provided as a one piece rigid frame or a stackable, foldable, or collapsible frame.Type: GrantFiled: July 10, 1986Date of Patent: June 23, 1987Inventor: Jonathan M. Nelson
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Patent number: 4618185Abstract: An ergonomic chair comprising:a substantially rigid seat structure (2,2'),a substantially rigid back structure (1,1'), articulated to the seat structure,a base (5,5') resting on the floor,a legs structure comprising on each side a pair of crossing legs (3,3', 4,4'), one (4,4') of which is articulated at the upper end to the front portion of the seat structure (2,2'), is provided with a slider (8,8') for the other leg (3,3') and is bound at the lower end to the base (5,5'), whereas the other leg (3,3'), which is elastically bending deformable, is articulated at the upper end to the back structure (1,1'), leans against a back stud (9,9') applied to the seat structure (2,2') engages with the slider (8,8') foreseen in the other leg (4,4') and is bound at the lower end to the base (5,5').Type: GrantFiled: September 18, 1985Date of Patent: October 21, 1986Inventor: Yaacov Kaufman
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Patent number: 4595235Abstract: A chair, especially suited for use by sitters lacking in normal strength which provides a rocking motion without shifting the base of the chair, and which provides support and assistance to the sitter in exiting the chair, is described.Type: GrantFiled: April 15, 1982Date of Patent: June 17, 1986Inventor: Roger K. Leib
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Patent number: 4545615Abstract: A seating unit comprises a pair of armrests, a first backrest secured between rearward ends of the armrests and disposed in cantilevered relationship therewith on the seating unit, a second backrest disposed in unattached relationship below the first backrest, and a seat secured in the seating unit between front and rearward sides thereof. The arm and backrests, as well as front and rear legs adapted to be used with the seating unit, are covered with a replaceable and exposed protective covering. The covering is composed of an elastomeric cushioning material, such as foamed neoprene, adapted to absorb impact loads imposed thereon. Each backrest preferably includes a semi-rigid flexible plastic strap adapted to flex and deform to at least substantially conform to the contour of the back of a person resting thereagainst.Type: GrantFiled: September 6, 1983Date of Patent: October 8, 1985Assignee: Metropolitan Furniture Corp.Inventor: Brian J. Kane
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Patent number: 4529246Abstract: A chair is provided which finds primary, although not exclusive, use as a patient's chair in a hospital room. The chair is formed of both rigid and flexible resilient members, composed respectively, for example, of tubular and flat barstock spring steel, which is configured to form a frame for the chair, and which provides a base, front legs, and support for the seat, back and arm rests of the chair; and a web-like member attached to the frame to constitute the seat and back of the chair. The seat and back are supported on the frame for resilient reciprocal movement. A pair of arm rests are attached to the frame, on either side of the seat. The web-like member, for example, may be formed of polyester mesh. An upholstered cover may be provided which may be attached to the web-like member by strips of Velcro and plastic rivets. The upholstered cover may be formed of vinyl, or other appropriate material, although the patient may sit directly on the web-like material.Type: GrantFiled: March 30, 1981Date of Patent: July 16, 1985Inventor: Roger K. Leib
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Patent number: 4049315Abstract: A chair of unique styling and design having discrete members constituting a back and support therefor, a seat support and a seat. The back and support and seat support are connected together along the lower portions thereof at selected discrete points. The seat is also connected to the seat support at selected discrete points.Type: GrantFiled: December 13, 1976Date of Patent: September 20, 1977Inventor: John D. Jacobson