US3124387A - Seating structures - Google Patents

Seating structures Download PDF

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US3124387A
US3124387A US3124387DA US3124387A US 3124387 A US3124387 A US 3124387A US 3124387D A US3124387D A US 3124387DA US 3124387 A US3124387 A US 3124387A
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members
frame members
chair
pivotally connected
crossing
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C4/00—Foldable, collapsible or dismountable chairs
    • A47C4/28—Folding chairs with flexible coverings for the seat or back elements
    • A47C4/286—Folding chairs with flexible coverings for the seat or back elements foldable side to side and front to back, e.g. umbrella type

Definitions

  • This invention relates to seating structures and is particularly concerned with folding chairs of the kind forming the subject of prior British Patents Nos. 666,871 and 816,179, wherein the chair legs when the chair is folded are brought together into close parallel or substantially parallel relationship, the chair seat and back being composed of a fabric or like flexible material.
  • the chief object of the invention is to evolve an improved form of seating structure and particularly a seating structure suitable for inclusion in a chair of the above type.
  • a further object of the invention is to evolve an improved construction of folding chair incorporating such a seating structure and which will be much lighter than the folding chairs previously proposed.
  • a seating structure in accordance with the present invention comprises two laterally spaced catenary cord or other flexible members attached at their extremities to fixed supports and carrying between them a seat proper composed of a woven fabric or other suitable flexible material, the sides of the seat proper being shaped to conform to the natural curvature of the cords under load coniditions.
  • a folding chair incorporating such a seating structure includes fore and aft pairs of crossed frame members, the members of each pair being pivotally connected together at their crossing points, the fore and aft frame members being connected by two pairs of laterally arranged crossed bracing members, the members of each pair being likewise pivotally connected at their crossing points and pivotally connected at their extremities to the frame members, the fore and aft pairs of frame members being connected by flexible arm rests, the frame members and/or bracing members carrying the flexible seating structure and a flexible back rest.
  • the upper ends of the aft frame members form or carry handle shaped portions which when the chair is folded lie adjacent one another and together provide a carrying handle.
  • FIGURE 1 is a perspective view of the chair
  • FIGURE 2 is a rear elevation
  • FIGURE 3 is a view of the chair folded
  • FIGURES 4, and 6 are fragmentary perspective views showing constructional details.
  • the frame and bracing members are constructed from lengths of light weight metal tubing and are connected together by suitable metal brackets.
  • the chair frame includes a pair of front crossing frame members 1 pivotally connected together at 2 and a pair of rear frame members 3 pivotally connected together at 4 and two pairs of laterally spaced bracing members 5 the bracing members of each pair being pivotally connected at 6
  • the bracing members 5 are pivotally connected at 7 to angle brackets 8 which in turn are pivotally connected to the fore and aft frame members 1 and 3 at 9.
  • Frame members 1 and 3 are provided with feet at their lower ends in the form of rubber or plastic rollers 10.
  • the rear frame members 3 are extended upwardly and at their upper ends carry plastic or other suitable forwardly directed handles 11 which can be grasped by the hands when folding or unfolding the chair, the handles when the chair is folded into the position shown in FIG- URE 3 lying sufiiciently close together to enable them to be grasped by the fingers of one hand to form a combined handle so that the chair in its folded condition can be easily carried and if desired used as a walking stick.
  • the aft frame members also carry between them a substantially triangular shaped piece of fabric 12 or similar flexible material forming a back rest.
  • the seat includes a pair of catenary cord members 13 consisting preferably of lengths of webbing which are curved in plan view and side elevation and are sewn or otherwise secured to the fabric or similar seat surface 14, the lateral edges of the surface 14 being similarly curved.
  • members 13 each may comprise two lengths of webbing which intersect at an angle and are stitched together in overlapping relationship
  • the members 13 may pass around metal plates 15 associated with the front and rear frame members 1 and 3 as shown in FIGURES 4, 5 and 6 and secured by mushroom headed nuts 16. The webbing is continued to provide an armrest 17.
  • the chair When folded the chair can be maintained in its folded condition by an elastic strap 18 secured to one of the frame members, the strap being fitted with a ring 19 which can be engaged with a hook 20 also carried by the strap.
  • the material forming the seat or back may be provided with a ring and hook whereby the material can be wrapped around the chair frame when folded and secured, thus enabling the frame and bracing members to be brought closer together when the chair is folded.
  • the seating structure as hereinbefore described can be applied alternatively to a childs push chair or an invalid chair or carriage, the seating structure in either case including a pair of catenary cord members anchored to the frame of the push chair, invalid chair or carriage, the cords carrying between them a fabric or similar type of seat proper.
  • a folding chair comprising a frame consisting of a front pair of vertical crossing frame members and a rear pair of vertical crossing frame members, said front frame members being pivotally connected to each other adjacent their crossing points, said rear frame members being pivotally connected to each other adjacent their crossing points, two side pairs of crossing brace members spaced laterally of each other, each of said side pairs being pivotally connected at their crossing points, said side pairs of bracing members being pivotally connected at their upper and lower ends to the upper and lower ends respectively of said front and rear frame members, said side pairs of brace members having their lower ends disposed inwardly of their upper ends so said side pairs are disposed in planes converging inwardly and toward each other adjacent the lower portion of said brace members, said rear frame members being substantially longer than said front frame members and extending upwardly a greater distance than said front frame members to provide a back rest support, a flexible back rest connected between the rear frame members, flexible arm rests connected between said front and rear frame members, a pair of catenary cord seat support members, one of said cord members having its
  • a folding chair comprising a frame including a pair of front crossing frame members, a pair of rear crossing frame members, the frame members of each pair being pivotally connected at their crossing points, two laterally spaced pairs of crossing bracing members, pivotally connected at their upper and lower extremities to the parts of the frame members lying above and below their crossing points, the bracing members of each pair being piv otally connected at their crossing points, the bracing members in front and rear elevation converging downwardly, the said rear frame members projecting upwardly above said front frame members to form a back rest support,

Description

March 10, 1964 o. F. MACLAREN SEATING STRUCTURES 3 Sheets-Sheet 1 Filed Sept. 6, 1962 INVENTOR 71 My Wat/Q re) ATTORNEYS M h 10, 19 4 o. F. MACLAREN SEATING STRUCTURES 3 Sheets-Sheet 2 Filed Sept. 6, 1962 mlvslvfop March 10, 1964 o. F. MACLAREN SEATING STRUCTURES 3 Sheets-Sheet 3 Filed Sept. 6, 1962 INVENTOR m 7% r m m %T .w HYN M aw United States Patent 3,124,387 SEATING STRUCTURES Owen Finlay Maclaren, Arnold House, Barby, near Rugby, England Filed Sept. 6, 1962, Ser. No. 221,822 2 Claims. (Cl. 29716) This invention relates to seating structures and is particularly concerned with folding chairs of the kind forming the subject of prior British Patents Nos. 666,871 and 816,179, wherein the chair legs when the chair is folded are brought together into close parallel or substantially parallel relationship, the chair seat and back being composed of a fabric or like flexible material.
The chief object of the invention is to evolve an improved form of seating structure and particularly a seating structure suitable for inclusion in a chair of the above type.
A further object of the invention is to evolve an improved construction of folding chair incorporating such a seating structure and which will be much lighter than the folding chairs previously proposed.
Further objects of the invention will become apparent as this specification proceeds.
A seating structure in accordance with the present invention comprises two laterally spaced catenary cord or other flexible members attached at their extremities to fixed supports and carrying between them a seat proper composed of a woven fabric or other suitable flexible material, the sides of the seat proper being shaped to conform to the natural curvature of the cords under load coniditions.
According to a further feature of the invention a folding chair incorporating such a seating structure includes fore and aft pairs of crossed frame members, the members of each pair being pivotally connected together at their crossing points, the fore and aft frame members being connected by two pairs of laterally arranged crossed bracing members, the members of each pair being likewise pivotally connected at their crossing points and pivotally connected at their extremities to the frame members, the fore and aft pairs of frame members being connected by flexible arm rests, the frame members and/or bracing members carrying the flexible seating structure and a flexible back rest.
According to a still further feature of the invention the upper ends of the aft frame members form or carry handle shaped portions which when the chair is folded lie adjacent one another and together provide a carrying handle.
Referring to the accompanying drawings:
FIGURE 1 is a perspective view of the chair;
FIGURE 2 is a rear elevation;
FIGURE 3 is a view of the chair folded; and
FIGURES 4, and 6 are fragmentary perspective views showing constructional details.
In a preferred embodiment of the invention the frame and bracing members are constructed from lengths of light weight metal tubing and are connected together by suitable metal brackets.
The chair frame includes a pair of front crossing frame members 1 pivotally connected together at 2 and a pair of rear frame members 3 pivotally connected together at 4 and two pairs of laterally spaced bracing members 5 the bracing members of each pair being pivotally connected at 6 The bracing members 5 are pivotally connected at 7 to angle brackets 8 which in turn are pivotally connected to the fore and aft frame members 1 and 3 at 9.
Frame members 1 and 3 are provided with feet at their lower ends in the form of rubber or plastic rollers 10.
3,124,387 Patented Mar. 10, 1964 The rear frame members 3 are extended upwardly and at their upper ends carry plastic or other suitable forwardly directed handles 11 which can be grasped by the hands when folding or unfolding the chair, the handles when the chair is folded into the position shown in FIG- URE 3 lying sufiiciently close together to enable them to be grasped by the fingers of one hand to form a combined handle so that the chair in its folded condition can be easily carried and if desired used as a walking stick. The aft frame members also carry between them a substantially triangular shaped piece of fabric 12 or similar flexible material forming a back rest.
The seat includes a pair of catenary cord members 13 consisting preferably of lengths of webbing which are curved in plan view and side elevation and are sewn or otherwise secured to the fabric or similar seat surface 14, the lateral edges of the surface 14 being similarly curved.
To obtain the required curvature of the webbing, members 13 each may comprise two lengths of webbing which intersect at an angle and are stitched together in overlapping relationship,
The members 13 may pass around metal plates 15 associated with the front and rear frame members 1 and 3 as shown in FIGURES 4, 5 and 6 and secured by mushroom headed nuts 16. The webbing is continued to provide an armrest 17.
When folded the chair can be maintained in its folded condition by an elastic strap 18 secured to one of the frame members, the strap being fitted with a ring 19 which can be engaged with a hook 20 also carried by the strap.
To fold the chair the handles are brought together causing the frame and bracing members to be moved about their pivotal points into a position in which they lie almost but not quite parallel with each other.
To unfold the chair the strap is released and the handles grasped by the right and left hand, the handles being moved apart in opposite directions until the chair is unfolded and ready for use.
Alternatively the material forming the seat or back may be provided with a ring and hook whereby the material can be wrapped around the chair frame when folded and secured, thus enabling the frame and bracing members to be brought closer together when the chair is folded.
The seating structure as hereinbefore described can be applied alternatively to a childs push chair or an invalid chair or carriage, the seating structure in either case including a pair of catenary cord members anchored to the frame of the push chair, invalid chair or carriage, the cords carrying between them a fabric or similar type of seat proper.
I claim:
1. A folding chair comprising a frame consisting of a front pair of vertical crossing frame members and a rear pair of vertical crossing frame members, said front frame members being pivotally connected to each other adjacent their crossing points, said rear frame members being pivotally connected to each other adjacent their crossing points, two side pairs of crossing brace members spaced laterally of each other, each of said side pairs being pivotally connected at their crossing points, said side pairs of bracing members being pivotally connected at their upper and lower ends to the upper and lower ends respectively of said front and rear frame members, said side pairs of brace members having their lower ends disposed inwardly of their upper ends so said side pairs are disposed in planes converging inwardly and toward each other adjacent the lower portion of said brace members, said rear frame members being substantially longer than said front frame members and extending upwardly a greater distance than said front frame members to provide a back rest support, a flexible back rest connected between the rear frame members, flexible arm rests connected between said front and rear frame members, a pair of catenary cord seat support members, one of said cord members having its ends connected between the front and rear frame members on the other side of said chair, said catenary members being disposed in lateral alignment with each other and disposed to curve downwardly with respect to a horizontal plane and curve inwardly with respect to a vertical plane, and a flexible seat having substantially parallel front and rear edges and curved side edges corresponding to the curvature of said cord members, each of said curved side edges being secured to one of said cord members.
2. A folding chair comprising a frame including a pair of front crossing frame members, a pair of rear crossing frame members, the frame members of each pair being pivotally connected at their crossing points, two laterally spaced pairs of crossing bracing members, pivotally connected at their upper and lower extremities to the parts of the frame members lying above and below their crossing points, the bracing members of each pair being piv otally connected at their crossing points, the bracing members in front and rear elevation converging downwardly, the said rear frame members projecting upwardly above said front frame members to form a back rest support,
a flexible back rest connecting the upper parts of said rear frame members together, flexible arm rests connecting said rear and front frame members and a rectangular flexible seat supported at its corners by said rear and front frame members, the lateral edges of said seat being curved and being secured to a pair of catenary cord members which are curved inplan view and side elevation and are secured at their extremities to said rear and front frame members.
References Cited in the file of this patent UNITED STATES PATENTS

Claims (1)

1. A FOLDING CHAIR COMPRISING A FRAME CONSISTING OF A FRONT PAIR OF VERTICAL CROSSING FRAME MEMBERS AND A REAR PAIR OF VERTICAL CROSSING FRAME MEMBERS, SAID FRONT FRAME MEMBERS BEING PIVOTALLY CONNECTED TO EACH OTHER ADJACENT THEIR CROSSING POINTS, SAID REAR FRAME MEMBERS BEING PIVOTALLY CONNECTED TO EACH OTHER ADJACENT THEIR CROSSING POINTS, TWO SIDE PAIRS OF CROSSING BRACE MEMBERS SPACED LATERALLY OF EACH OTHER, EACH OF SAID SIDE PAIRS BEING PIVOTALLY CONNECTED AT THEIR CROSSING POINTS, SAID SIDE PAIRS OF BRACING MEMBERS BEING PIVOTALLY CONNECTED AT THEIR UPPER AND LOWER ENDS TO THE UPPER AND LOWER ENDS RESPECTIVELY OF SAID FRONT AND REAR FRAME MEMBERS, SAID SIDE PAIRS OF BRACE MEMBERS HAVING THEIR LOWER ENDS DISPOSED INWARDLY OF THEIR UPPER ENDS SO SAID SIDE PAIRS ARE DISPOSED IN PLANES CONVERGING INWARDLY AND TOWARD EACH OTHER ADJACENT THE LOWER PORTION OF SAID BRACE MEMBERS, SAID REAR FRAME MEMBERS BEING SUBSTANTIALLY LONGER THAN SAID FRONT FRAME MEMBERS AND EXTENDING UPWARDLY A GREATER DISTANCE THAN SAID FRONT FRAME MEMBERS TO PROVIDE A BACK REST SUPPORT, A FLEXIBLE BACK REST CONNECTED BETWEEN THE REAR FRAME MEMBERS, FLEXIBLE ARM RESTS CONNECTED BETWEEN SAID FRONT AND REAR FRAME MEMBERS, A PAIR OF CATENARY CORD SEAT SUPPORT MEMBERS, ONE OF SAID CORD MEMBERS HAVING ITS ENDS CONNECTED BETWEEN THE FRONT AND REAR FRAME MEMBERS ON THE OTHER SIDE OF SAID CHAIR,
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Cited By (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635520A (en) * 1970-02-02 1972-01-18 Arnold L Roher Collapsible chair
US3838883A (en) * 1973-10-11 1974-10-01 J Machen Folding chair frame
US3897056A (en) * 1973-10-16 1975-07-29 Turco Mfg Co Safety strap swing seat
US4186959A (en) * 1978-03-27 1980-02-05 Sacha Thebaud Foldable chair
US4547015A (en) * 1981-11-06 1985-10-15 Yasuo Wakimoto Folding canvas chair
US4652047A (en) * 1984-06-19 1987-03-24 Alexander Guy Chan Folding chairs
US4685725A (en) * 1985-05-14 1987-08-11 Helfrich Robert H Seating apparatus
EP0256837A2 (en) * 1986-08-18 1988-02-24 Christopher John Jacobs Foldable frame assembly
US4836601A (en) * 1987-12-18 1989-06-06 U.S. Brands Folding chair
US5054849A (en) * 1990-08-13 1991-10-08 Richard Hoff Ultra-portable collapsible chair
US5482398A (en) * 1995-02-23 1996-01-09 Finke; Gerald E. Collapsible safety signal and traffic barricade
US5499857A (en) * 1994-11-18 1996-03-19 Lynch, Jr.; Robert W. Folding chair
US5876091A (en) * 1997-03-15 1999-03-02 Chernomashentsev; Alan Collapsible tripod stool
US5882068A (en) * 1998-03-23 1999-03-16 Coastal Sales Associates, Inc. Folding reclining chair apparatus
US5921621A (en) * 1998-07-21 1999-07-13 Cook; David G. Collapsible chair
US5984406A (en) * 1997-05-16 1999-11-16 Lee; Howard Folding chair
US6045177A (en) * 1998-07-13 2000-04-04 Grace; Daniel R. Portable collapsible chair
USD432325S (en) * 1999-07-12 2000-10-24 Tofasco Of America, Inc. Collapsible chair
US6170907B1 (en) * 1999-08-03 2001-01-09 Ming-Liang Tsai Collapsible chair
US6209951B1 (en) * 1998-10-29 2001-04-03 Sanghwan Han Portable, foldable chair
US6264271B1 (en) * 1999-10-12 2001-07-24 The Game Tracker, Inc. Adjustably reclinable folding chair
US6276548B1 (en) 2000-10-05 2001-08-21 David Mitchell Collapsible basket
GB2364905A (en) * 2000-07-25 2002-02-13 Tsai Ting Sheng Infant chair with cross legs
US6364410B1 (en) * 2000-06-15 2002-04-02 Larry Tang Collapsible cot
US6547322B2 (en) 2001-08-17 2003-04-15 Edward Michael Marx Collapsible reclining chair
US6647560B1 (en) * 2002-05-02 2003-11-18 Kimberly Lynn Hingley Collapsible portable potty trainer
US20030222484A1 (en) * 2001-03-05 2003-12-04 Gette Brian Edward Le Collapsible support and methods of using the same
US20040007903A1 (en) * 2002-01-30 2004-01-15 Chang Tony Wei-Sin Foldable chair with reclining back
US6698827B2 (en) 2001-03-05 2004-03-02 Gray Matter Holdings, Llc Collapsible support and methods of using the same
US20040081510A1 (en) * 2002-10-28 2004-04-29 Edward Zheng Folding joint arrangement for foldable furniture
US6752414B1 (en) * 2002-05-09 2004-06-22 Darcy Waldron Collapsible wheelchair
US6817671B1 (en) * 2000-11-06 2004-11-16 Edward Zheng Collapsible reclining chair
US6820927B2 (en) 2001-03-05 2004-11-23 Kelsyus, Llc Collapsible support and methods of using the same
US7100975B1 (en) 2000-08-30 2006-09-05 Tofasco Of America, Inc. Collapsible rocking chair
US20060219181A1 (en) * 2005-03-29 2006-10-05 The Coleman Company, Inc. Elevated sleeping bed for pets
US7131364B2 (en) 2003-08-25 2006-11-07 Eastway Fair Company, Ltd. Collapsible stand for a bench-top power tool
US20070200395A1 (en) * 2006-02-27 2007-08-30 Edward Zheng Collapsible quad chair with integrated back and armrest
US20090019631A1 (en) * 2007-07-11 2009-01-22 Alice Ruttler Shower chair dignity mat
US20090026809A1 (en) * 2005-07-22 2009-01-29 David Reeb Canopy chair
US7654611B1 (en) * 2009-01-30 2010-02-02 Roy Elias Kesrouani Collapsible seat
US20100026056A1 (en) * 2008-08-04 2010-02-04 Lee Pil Yul Foldable chair
US20100069740A1 (en) * 2008-04-14 2010-03-18 Blake Timothy Larson Tissue-stabilization device and method for medical procedures
US7681267B1 (en) * 2006-09-27 2010-03-23 Carmelina Hall Collapsible and portable baby changing table
US7802844B1 (en) 2004-02-23 2010-09-28 Charles T. Vencill Collapsible inclement weather chair
US20110043004A1 (en) * 2009-08-20 2011-02-24 Idea Nuova, Inc. Foldable chair
US20110174812A1 (en) * 2010-01-15 2011-07-21 Shelby Ray Ainsworth Collapsible Garbage Container
USD691384S1 (en) 2012-10-18 2013-10-15 Idea Nuova Foldable chair
US8801090B2 (en) 2012-08-09 2014-08-12 Idea Nuova, Inc. Foldable chair
USD712185S1 (en) 2014-02-28 2014-09-02 Idea Nuova, Inc. Trampoline chair
USD716574S1 (en) 2014-02-28 2014-11-04 Idea Nuova, Inc. Webbed saucer chair with central pad
US8894139B1 (en) * 2013-06-22 2014-11-25 Rambling Raven Designs, Ltd Collapsible lightweight hammock chair
USD718549S1 (en) 2014-06-11 2014-12-02 Idea Nuova, Inc. Trampoline saucer chair
USD720550S1 (en) 2014-06-11 2015-01-06 Idea Nuova, Inc. Webbed saucer chair with seat pad
US8991920B2 (en) 2012-02-21 2015-03-31 Tiny Love Ltd. Infant bouncer
USD752890S1 (en) 2015-01-08 2016-04-05 Idea Nuova, Inc. Foldable club chair
USD755549S1 (en) 2014-08-15 2016-05-10 Idea Nuova, Inc. Checkered saucer chair
USD755552S1 (en) 2014-12-02 2016-05-10 Idea Nuova, Inc. Wicker saucer chair
USD755551S1 (en) 2014-12-02 2016-05-10 Idea Nuova, Inc. Wicker web chair
USD756156S1 (en) 2014-12-02 2016-05-17 Idea Nuova, Inc. Wicker saucer lounge chair
USD756155S1 (en) 2014-10-15 2016-05-17 Idea Nuova, Inc. Woven chair
USD761605S1 (en) 2014-08-15 2016-07-19 Idea Nuova, Inc. Webbed saucer chair with seat pad
US11203278B2 (en) * 2017-07-13 2021-12-21 Jennifer CAYZER Collapsible travel support device
US11490732B2 (en) * 2018-04-12 2022-11-08 Stannah Stairlifts Limited Stairlift chair
US20230092646A1 (en) * 2021-09-17 2023-03-23 Z Company/Zenithen Folding Swing Chair Support and Swing Chair

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Cited By (92)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635520A (en) * 1970-02-02 1972-01-18 Arnold L Roher Collapsible chair
US3838883A (en) * 1973-10-11 1974-10-01 J Machen Folding chair frame
US3897056A (en) * 1973-10-16 1975-07-29 Turco Mfg Co Safety strap swing seat
US4186959A (en) * 1978-03-27 1980-02-05 Sacha Thebaud Foldable chair
US4547015A (en) * 1981-11-06 1985-10-15 Yasuo Wakimoto Folding canvas chair
US4652047A (en) * 1984-06-19 1987-03-24 Alexander Guy Chan Folding chairs
US4685725A (en) * 1985-05-14 1987-08-11 Helfrich Robert H Seating apparatus
EP0256837A3 (en) * 1986-08-18 1988-05-04 Christopher John Jacobs Foldable frame assembly
EP0256837A2 (en) * 1986-08-18 1988-02-24 Christopher John Jacobs Foldable frame assembly
US4836601A (en) * 1987-12-18 1989-06-06 U.S. Brands Folding chair
US5054849A (en) * 1990-08-13 1991-10-08 Richard Hoff Ultra-portable collapsible chair
US5499857A (en) * 1994-11-18 1996-03-19 Lynch, Jr.; Robert W. Folding chair
US5718473A (en) * 1994-11-18 1998-02-17 Lynch, Jr.; Robert W. Folding chair
US5482398A (en) * 1995-02-23 1996-01-09 Finke; Gerald E. Collapsible safety signal and traffic barricade
US5876091A (en) * 1997-03-15 1999-03-02 Chernomashentsev; Alan Collapsible tripod stool
US5984406A (en) * 1997-05-16 1999-11-16 Lee; Howard Folding chair
US5882068A (en) * 1998-03-23 1999-03-16 Coastal Sales Associates, Inc. Folding reclining chair apparatus
US6045177A (en) * 1998-07-13 2000-04-04 Grace; Daniel R. Portable collapsible chair
US5921621A (en) * 1998-07-21 1999-07-13 Cook; David G. Collapsible chair
US6209951B1 (en) * 1998-10-29 2001-04-03 Sanghwan Han Portable, foldable chair
USD432325S (en) * 1999-07-12 2000-10-24 Tofasco Of America, Inc. Collapsible chair
US6170907B1 (en) * 1999-08-03 2001-01-09 Ming-Liang Tsai Collapsible chair
US6264271B1 (en) * 1999-10-12 2001-07-24 The Game Tracker, Inc. Adjustably reclinable folding chair
US6364410B1 (en) * 2000-06-15 2002-04-02 Larry Tang Collapsible cot
GB2364905A (en) * 2000-07-25 2002-02-13 Tsai Ting Sheng Infant chair with cross legs
US7100975B1 (en) 2000-08-30 2006-09-05 Tofasco Of America, Inc. Collapsible rocking chair
WO2002028729A1 (en) * 2000-10-05 2002-04-11 David Mitchaell Collapsible basket
US6276548B1 (en) 2000-10-05 2001-08-21 David Mitchell Collapsible basket
US6817671B1 (en) * 2000-11-06 2004-11-16 Edward Zheng Collapsible reclining chair
USRE43847E1 (en) 2001-03-05 2012-12-11 Kelsyus, Llc Collapsible support and methods of using the same
US20030222484A1 (en) * 2001-03-05 2003-12-04 Gette Brian Edward Le Collapsible support and methods of using the same
US7198324B2 (en) 2001-03-05 2007-04-03 Kelsyus, Llc Collapsible support and methods of using the same
US6698827B2 (en) 2001-03-05 2004-03-02 Gray Matter Holdings, Llc Collapsible support and methods of using the same
US20050285436A1 (en) * 2001-03-05 2005-12-29 Cooley Godward Llp Collapsible support and methods of using the same
US6926355B2 (en) 2001-03-05 2005-08-09 Kelsyus, Llc Collapsible support and methods of using the same
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