Rigid With Armrest Patents (Class 297/28)
  • Patent number: 11001346
    Abstract: An attachable watercraft chair. The attachable watercraft chair includes a chair formed by a back member and a seat member that are pivotally connected. The back member has a first end placed distally to the seat member and a second end placed proximally to the seat member. A first pair of brackets are connected to the back member. The first pair of brackets have suction cups mounted on them. Also, a second pair of brackets are connected to the back member. The second pair of brackets have a support bar that spans across the back member. The attachable watercraft chair can be attached and removed from a watercraft.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: May 11, 2021
    Inventor: Ronald H. Barwick
  • Patent number: 10542820
    Abstract: Provided herein are compositions, systems, kits, methods and uses for a chair designed for outdoor use. In particular, provided herein are compositions, systems, kits, methods and uses wherein a swivel mounted chair reclines while maintaining a user's center of gravity.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: January 28, 2020
    Inventor: Robert McGucken, III
  • Patent number: 10159349
    Abstract: A folding sofa that includes symmetrical armrest bars on both sides, front support bars and rear support bars, as well as a fabric seat. The armrest bar consists of a curved U-shaped bar with a symmetrical armrest section and U-shaped portion. The armrest section is formed in a wave shape that starts low in the front and rises high in the rear, with the front lower portion also being attached to an armrest auxiliary bar to provide support for resting the forearms. The rear support bars, after hinging to the armrest bars, have extended sections protruding forward to support the front edge of the fabric seat cushion.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: December 25, 2018
    Assignee: Zenithen USA, LLC
    Inventors: Andrew David Frankel, Shi-Ping Zheng, Tian-Xia Zheng
  • Patent number: 9801366
    Abstract: A fold out fishing chair for providing an easily portable seating and rod holding apparatus that provides shade for daytime fishing and illumination for nighttime fishing. The fold out fishing chair includes a base seat with an integral holder assembly and an integral shade assembly, each of which can be selectively moved into a deployed position. The holder assembly defines a fold out fishing rod holding structure that can hold fishing rods at a desirable angle without requiring ongoing user attention. The shade assembly includes a roll out shade having integrated lighting elements so as to improve comfort in direct sunlight and low lighting conditions. The holder assembly and shade assembly can both be moved to a retracted position in which the base seat can be folded into a closed configuration sized substantially the same as a folded conventional fold out chair.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: October 31, 2017
    Inventor: Calvin Robert Ruybal
  • Patent number: 7954891
    Abstract: A foldable chair has an armrest retracting structure that includes two plate elements placed below each armrest, each plate element having a guide slot with a linear section and a reverse turn section. A first pivotal axle passes through the plate elements and connects with the front leg frame. A support beam has an end through which a second pivotal axle is mounted, the second pivotal axle being connected with the front leg frame. An opposite end of the support beam is secured in the slots through a bolt. By moving the support beam, the armrest can be deployed or retracted. When the bolt is lodged in the reverse turn section, the armrest can be locked in the deployed position.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: June 7, 2011
    Inventors: Mei Chuen Lin, Tzu Mei Wang
  • Patent number: 7950734
    Abstract: A recliner includes a folding frame including two arm rests, a chair frame coupling with the folding frame, and a locking mechanism. The chair frame includes a seat frame, a back frame, and a leg frame, wherein the chair frame is adapted to be selectively adjusted an inclination angle thereof to adjust the corresponding position of each of the seat frame, the back frame, and the leg frame in responsive to the sliding movement of the arm rest. The locking mechanism is provided at a bottom side of each of the arm rests to lock up the chair frame at the inclination angle.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: May 31, 2011
    Inventor: Edward Zheng
  • Patent number: 7195310
    Abstract: A chair includes a support assembly comprised of a first leg set having two space first bars and a second leg set having two space second bars located between and pivoted to the first bars. A backrest has is rotatable with respect to the support assembly to selectively change a tilting angle thereof. A tubular slide is movably fit over a free end of each first bar and is pivoted to the backrest. The slide has a fastening device to selectively secure the slide with respect to the first bar thereby releasably securing the backrest at a desired tilting angle. A wire and a spring are selectively connected between the slide and the first bar to prevent the slide from undesired separation from the first bar and to induce a returning force to move the backrest from a tilted position back to a regular position.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: March 27, 2007
    Inventor: Benjamin P Reese
  • Patent number: 7147277
    Abstract: A chair. The chair folds by a plurality of hinges between an expanded position and a collapsed position to seat a person substantially horizontal while the chair is positioned on an angled surface. The chair comprises a back assembly, a seat assembly, a leg assembly, a seat, an arm assembly, and a foot assembly. The chair further comprises at least one anchor that is configured to penetrate the angled surface in order to stabilize the chair on the angled surface.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: December 12, 2006
    Inventor: Greg Miller
  • Patent number: 6979056
    Abstract: The folding chair with a movable shade includes a back support frame and a flexible back support, a seat support frame and a flexible seat and a cross frame member pivotally mounted between the back frame and the seat support frame to provide an angular seating position for the user. A shade member includes a shade frame and a shade element. The shade member is pivotally mounted to a top portion of the back support frame. A control member coupled either to the shade frame or the back support frame establishes the angular shade position of the shade with respect to the back support and the seat support.
    Type: Grant
    Filed: November 9, 2004
    Date of Patent: December 27, 2005
    Assignee: JGR Copa, LLC
    Inventor: Jacob Goldszer
  • Patent number: 6502899
    Abstract: A chair includes a backrest member, a seat member and a pair of armrest members. The backrest member has opposite lateral sides, upper and lower ends, and an intermediate portion between the upper and lower ends. The seat member has a rear end pivoted to the lower end of the backrest member. The armrest members are disposed on the lateral sides of the backrest member. Each of the armrest members has a rear end pivoted to the intermediate portion of the backrest member, and an outer wall surface formed with a mounting recess. Each of the armrest members includes a face panel disposed fittingly and detachably in the mounting recess.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: January 7, 2003
    Assignee: Shin Yeh Enterprise Co., Ltd.
    Inventor: Chuen-Jong Tseng
  • Publication number: 20020135210
    Abstract: A chair includes a backrest member, a seat member and a pair of armrest members. The backrest member has opposite lateral sides, upper and lower ends, and an intermediate portion between the upper and lower ends. The seat member has a rear end pivoted to the lower end of the backrest member. The armrest members are disposed on the lateral sides of the backrest member. Each of the armrest members has a rear end pivoted to the intermediate portion of the backrest member, and an outer wall surface formed with a mounting recess. Each of the armrest members includes a face panel disposed fittingly and detachably in the mounting recess.
    Type: Application
    Filed: March 22, 2001
    Publication date: September 26, 2002
    Inventor: Chuen-Jong Tseng
  • Patent number: 6056172
    Abstract: A backpack unit comprising a frame of a material selected from a metal alloy, including, but not limited to, aluminum, aluminum alloy, steel, and steel alloy or plastic. The frame includes a U-shaped seat frame pivotally coupled at its ends to ends of a U-shaped back frame through a cross-member, a U-shaped front leg frame pivotally coupled to the seat panel and pivotally coupled at its ends to ends of a U-shaped back leg frame. The frame is capable of being folded such that the back frame, the seat frame, the front leg frame, and the back leg frame folds substantially parallel and adjacent to one another.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: May 2, 2000
    Inventor: Kerry L. Welsh
  • Patent number: 6030032
    Abstract: An armrest for a chair includes an armrest frame formed with an elongated channel with a bottom opening, a hollow mounting seat disposed in the channel, and a shaft extending slidably through the mounting seat along an axis parallel to the armrest frame and having opposite ends secured to the armrest frame. The mounting seat has inner surfaces formed with retaining grooves that are registered with one another. Each of the retaining grooves is defined by a front vertical shoulder and a rear inclined shoulder. The inclined shoulder inclines downwardly and forwardly relative to the vertical shoulder. A locking plate is disposed in the mounting seat, and extends into the retaining grooves. The locking plate is formed with a locking hole between upper and lower sections thereof. The locking hole is slightly larger than cross-section of the shaft to permit extension of the shaft therethrough.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: February 29, 2000
    Assignee: Shin Yen Enterprise Co., Ltd.
    Inventor: Chuen-Jong Tseng
  • Patent number: 5613737
    Abstract: A lawn chair includes a backrest frame and two arm support frames provided at two opposite sides of the backrest frame. Each of the arm support frames has an armrest portion and a positioning member secured to the armrest portion and formed with a first longitudinal slot therethrough. A slide plate is sleeved slidably on the positioning member and has a second longitudinal slot unit of predetermined shaped formed therethrough. A positioning bolt extends through the first slot of the positioning member and the second slot unit of the slide plate and is threaded to the backrest frame. A protective sleeve member is sleeved over the armrest portion and is connected securely to the slide plate in such a manner that the protective sleeve member is movable together with the slide plate and that the protective sleeve member encloses the entire length of the positioning member therein.
    Type: Grant
    Filed: November 21, 1995
    Date of Patent: March 25, 1997
    Inventor: Chuen-Shyan Tseng
  • Patent number: 5611594
    Abstract: A portable folding chair that is provided with a pair of telescoping side mounting members each made up of an inner and outer telescoping tube that are prevented from having sliding movement relative to each other when the chair is in its erected state, in order to stabilize the chair when sat upon. The outer tube constitutes the upper tube so that any sand or dirt entering into the interior of the telescoping members will fall right out again. The front support legs are sloped forwardly to allow for the chair to be more fully collapsed.
    Type: Grant
    Filed: April 13, 1995
    Date of Patent: March 18, 1997
    Inventor: Robert Findlay
  • Patent number: 5588696
    Abstract: A convertible backpack assembly for carrying items therewithin, yet providing a readily adaptable assembly for conversion into a beach-type chair. The assembly includes a front panel which is disposed generally parallel to a back panel when the assembly is in a backpack configuration. The front panel is rigidly attached to a base. The back panel is pivotally mounted to the base. Armrests are provided which extend forwardly from the back panel when the assembly is converted from a backpack configuration to a chair configuration. When the assembly is in the chair configuration, the armrests are adjustable to move the back panel between reclined and an upright positions. Webbing material is disposed over the frame portions to define the front and the back of the backpack as well as the back and seat of the chair. A bag made of a material such as canvas is placed between the front and back panels when the assembly is in the backpack configuration.
    Type: Grant
    Filed: June 29, 1995
    Date of Patent: December 31, 1996
    Inventors: John C. Jay, Clay A. Burns
  • Patent number: 5570926
    Abstract: An easychair having a frame which forms the back of the chair, two side members forming the seat of the chair and a pair of spaced apart arm rests. The side members and arm rests are mounted or articulated upon the frame. A U-shaped frame forms the leg rest of the chair and the base is formed by a pair of leg units that are secured to the side members and which articulate about a forked yoke. Each arm rest contains a slide rod in parallel alignment with the side members. The end of the front leg unit is arranged to slide along the slide rod and a locking means for holding the chair in an unfolded position. The legs of the leg units are connected by a linkage so that they move together as the chair is folded and unfolded.
    Type: Grant
    Filed: June 23, 1995
    Date of Patent: November 5, 1996
    Assignee: Lafuma S.A.
    Inventors: Elie Papiernik, Yann Le Gal
  • Patent number: 5464270
    Abstract: A stagelessly folding deck chair comprising a back frame, a seat frame pivotally connected with the back frame, a leg frame pivotally connected with the seat frame, two adjusting armrests each having an adjusting rod, and a support frame, wherein the adjusting rod is pivotally connected with both the leg frame and back frame so that when folding the chair, by means of controlling the adjusting rod, the back frame and leg frame are simultaneously moved to quicken the folding operation.
    Type: Grant
    Filed: July 29, 1994
    Date of Patent: November 7, 1995
    Inventor: I-Shan Chang
  • Patent number: 5310246
    Abstract: A foldable lawn chair includes a seat frame, a backrest frame connected pivotally to a rear end of the seat frame, and two arm support frames at two sides of the seat frame. Each of the arm support frames has an armrest portion provided with a positioning member that has a longitudinal slot, front and rear ends, upper and lower peripheries extending between the front and rear ends, a row of positioning notches along the upper periphery, and an access hole integrally formed with the longitudinal slot. A slide plate is sleeved slidably on the positioning member and has a longitudinal slot and a through-hole that is formed integrally with and that is communicated with the longitudinal slot thereof. When the slide plate slides together with a positioning stud of the backrest frame along the positioning member, the positioning notches in the positioning member are respectively covered by the slide plate and are exposed through the through-hole of the slide plate.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: May 10, 1994
    Inventor: Chun-Chu Tseng
  • Patent number: 5282664
    Abstract: A lawn chair includes a seat frame assembly which has a seat frame and a rear leg frame, a backrest frame connected pivotally to the rear end portion of the seat frame at the lower end portion thereof, two spaced arm supporting frames provided on two sides of the backrest frame, two elongated positioning members secured to the rear end portions of the arm supporting frames, and two positioning studs extending outwardly from the two sides of the backrest frame. Each of the arm supporting frames has an intermediate portion connected pivotally to the seat frame, a front leg portion extending downwardly and forwardly from the intermediate portion, and an armrest portion extending upwardly and rearwardly from the intermediate portion. Each positioning member has an access hole and a longitudinal slot communicating with the access hole and having a horizontal row of upwardly extending positioning portions.
    Type: Grant
    Filed: June 14, 1993
    Date of Patent: February 1, 1994
    Inventor: Chun-Chu Tseng
  • Patent number: 5244250
    Abstract: A portable, fold-up sports chair includes fabric seat and back portions, attached to and extending between a lightweight, collapsible tubular frame. The transverse frame members are hinged to allow the chair to be folded into a compact bundle for transportation or storage. Straps attached to the underside of the legs help prevent the chair legs from penetrating or sinking when used on a soft surface such as sand. The angle of the seat back is adjustable by means of straps which also serve as arm rests when the chair is in use.
    Type: Grant
    Filed: January 31, 1992
    Date of Patent: September 14, 1993
    Inventor: Robert A. Nordmeyer
  • Patent number: 4906042
    Abstract: This invention relates to a device for locking an adjusting finger in any one of the notches of a rack, wherein the first mobile element provided with the rack defines windows for the passage of retractable stops capable of being placed opposite the notches to stop the finger of the second mobile element, these stops being located at the free ends of flexible arms inclined in herringbone fashion and integral at their other ends with a sliding element provoking, when it is actuated, bending of said arms which abut on an edge of the windows and thus retraction of the stops.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: March 6, 1990
    Assignee: Grosfillex S.A.R.L.
    Inventor: Marc Ollat
  • Patent number: 4898421
    Abstract: A furniture with a guide groove in each back leg for the purpose of folding up the furniture is provided with catch elements in the region of the guide groove. This makes it possible to adjust the seat at various inclinations with respect to the horizontal plane. According to a first embodiment a plurality of catch recesses are provided on one end of each guide groove. According to a second embodiment catch grooves are provided at one end of the guide groove which are substantially parallel to one another and extend at an obtuse angle from the guide groove. An adjustment means for a folding furniture comprises catch means provided in the region of one of the arm rests and protruding downwardly. The adjustment means operates together with an element which projects laterally in the region of a connection section between a front and back leg of the piece of folding furniture.
    Type: Grant
    Filed: February 20, 1987
    Date of Patent: February 6, 1990
    Inventor: Oswald Brunn
  • Patent number: 4890881
    Abstract: This invention relates to a multi-position, foldable armchair whose backrest inclination and seat height are adjustable, comprising, on each side, a crossed support of which the rear leg is articulated about a pivot pin under the front part of a seat and of which the front leg is connected to the rear part of the latter by a finger-rack arrangement. It also comprises a backrest articulated about a pivot pin on the front leg. Finally, it comprises an armrest articulated about a pin on the backrest and connected by a pin-rack arrangement to a compass element of which the front arm is articulated about a pin on the seat and of which the rear arm is articulated about the pin on the front leg. According to the invention, the rack of the seat is disengageable from the finger of the front leg and the rack of the armrest is releasable from the finger of the compass element, so that the armchair can be folded down flat.
    Type: Grant
    Filed: June 8, 1989
    Date of Patent: January 2, 1990
    Assignee: Grosfillex S.A.R.L.
    Inventors: Marc Ollat, Norbert Kleinklaus
  • Patent number: 4792181
    Abstract: This invention relates to a foldable armchair incorporating adjustable backrest and footrest, in which the connecting elements which control orientation of the footrest are connected to the backrest by pivoting crank pins provided with bearing faces cooperating with stops on said backrest, so as to make a unidirectional angular connection which ensures modification of the orientation of the footrest during any angular modification of the backrest, while allowing the armchair to be completely folded.
    Type: Grant
    Filed: July 28, 1987
    Date of Patent: December 20, 1988
    Assignee: Grosfillex S.A.R.L.
    Inventor: Jean-Paul Guichon
  • Patent number: 4784432
    Abstract: An article of furniture such as a chair (10) includes a seat member (13), a back member (11) pivotally attached to the seat member (13), leg members (14,16) attached to the seat member (13), and arm members (20) attached to the back member (11). The arm members (20) are associated with the leg members (14,16) such that the angular relationship between the seat member (13) and the back member (11) may be adjusted to a plurality of positions. A track system (26) defines a plurality of adjacent stop positions (29) with a pin member (46) interacting with the track system(26) to engage a stop position (29) therealong. The track system (26) is configured so that upon relative movement of the track system (26) and the pin member (46), the pin member (46) engages the next adjacent stop position (29) thereby moving the back member (11) with respect to the seat member (13 ) only to the next adjacent plurality of relative angular positions.
    Type: Grant
    Filed: August 7, 1987
    Date of Patent: November 15, 1988
    Assignee: Rubbermaid Incorporated
    Inventor: Jerrold G. Brown
  • Patent number: 4776634
    Abstract: Armchair structure with independently adjustable back, seat and foot-rest, wherein the back is hinged at one end of the seat frame, and the foot-rest is hinged at the opposite end, the frame itself being hinged at the support structure beyond the center line of its length and towards its end facing the back. Each longitudinal element of the seat frame is provided, at the fulcrum of the back, with a toothing as a rack against which acts the extremity of an angle lever hinged at the support structure in the proximity of the armrest, the actuation of the free end of said lever allowing the disengagement of the lever itself from the rack and the engagement thereof with said rack in the new position taken on by the seat, the angle levers being interconnected in correspondence of the ends that engage with the racks.
    Type: Grant
    Filed: May 21, 1987
    Date of Patent: October 11, 1988
    Inventor: Francesco Pugliese
  • Patent number: 4719653
    Abstract: An adjustable body support device comprises a seating portion for supporting the lower torso of the body and a back portion for supporting the upper torso of the body. An arm rest is fixedly secured to the seating portion for supporting the arms of the body and is selectively engageble and disengageable with the back portion to hold the latter in a predetermined position relative to the seating portion. An adjustable leg is hingedly connected to the back portion for selectively adjusting the back portion with respect to the support surface. An adjusting rack and bale may be provided for selectively adjusting the back portion in a series of stepped levels.
    Type: Grant
    Filed: January 2, 1986
    Date of Patent: January 19, 1988
    Inventors: Randy A. Bishop, Victoria A. Bishop
  • Patent number: 4715650
    Abstract: A collapsible folding lawn chair is provided. Employing a chair of the folding frame and "sling seat" variety, a second level of compactness is achieved by addition of flexible locking hinges intermediate certain straight members of the frame. The chair remains a readily assembled single unit yet collapses to an easily transported and stored size. Additional features such as fully reclinability can be readily provided with minimal increase in the storage size of the chair.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: December 29, 1987
    Inventors: Cary Berman, Steven Kiss
  • Patent number: 4682816
    Abstract: This invention relates to an easy chair comprising a seat surface fixed to the frame and with respect to which are pivotally mounted, to the rear, a backrest with several positions and, at the front, a leg rest composed of two hinged panels. The backrest is maintained in its various positions by means of the armrests.
    Type: Grant
    Filed: July 7, 1986
    Date of Patent: July 28, 1987
    Inventor: Henry Massonnet
  • Patent number: 4674793
    Abstract: A folding chair includes two pairs of front and rear legs which are arranged at opposite sides of a seat and support the same in a substantially horizontal orientation in a position of use of the folding chair. A backrest is pivotally connected to the rear portion of the seat for movement between a plurality of inclined positions. Two armrests are hingedly connected to the backrest and extend frontwardly therefrom. The front and rear legs of each pair assume a configuration of an inverted V, and are connected to one another at their upper ends by a hinge which includes two insertable members articulated to one another, each having an insertion portion fittingly received in a hollow end portion of the respective leg. Each insertion portion has two resilient tongues at opposite sides thereof, which carry respective protuberances that are received in corresponding openings of the legs.
    Type: Grant
    Filed: December 10, 1985
    Date of Patent: June 23, 1987
    Inventor: Heinz Kettler
  • Patent number: 4522446
    Abstract: The present invention relates to a reclining chair or lounge having a pivotally connected back portion. The preferred form is a molded plastic sun lounge which can recline to function as a couch or bed. The sun lounge is able to be stacked when in the fully reclined position, and has arm rests which are adjusted in attitude according to the position of the back rest so as to maintain comfortable arm support throughout all back rest positions.
    Type: Grant
    Filed: March 4, 1983
    Date of Patent: June 11, 1985
    Assignee: Sebel Operations Pty. Ltd.
    Inventor: Denise Sheridan
  • Patent number: 4482184
    Abstract: Chair support pivotably carries parallelogramic support arms which are pivoted to seat rails. One of the support arms continues above the seat rail to become an arm support and adjacent the top thereof carries one end of a telescoping unit. The other end of the telescoping unit is pivoted to the seat rail. The telescoping unit is of such length that, when the support arms are in the erected position, the telescoping unit bottoms out to become a rigid compression member and provide a firm, erected position.
    Type: Grant
    Filed: September 17, 1982
    Date of Patent: November 13, 1984
    Inventor: Christopher D. Mincey
  • Patent number: 4421358
    Abstract: There is provided an arm rest assembly for a chair or the like, including an arm rest member and a support member which are pivoted together. The arm rest member has a top surface and the support member terminates below the top surface and is pivoted thereto at a location slightly rearwardly of the forward end. These members define an angle which changes as the chair is adjusted, and the arm rest member includes stop means forwardly of the support member and below the top surface, the stop means being adapted to come into contact with the support member when the angle enlarges to a predetermined size less than 180.degree.. This prevents the arm rest and support members from reaching a dead center position, and avoids the risk that the user's finger will become trapped between the support member and the forward end of the arm rest member.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: December 20, 1983
    Inventor: James A. Lehnen
  • Patent number: 4319779
    Abstract: A relatively straight back curves forward at the lower end at a small angle to the longitudinal axis of the back to form an integral supporting foot portion, and at the approximate center of the length of each side member of the back a pivot journal or stud projects inwardly to selectively engage in detents in the lower edge of an armrest when used as a chair. The armrest is pivoted adjacent the opposite end to the top portion of a pivotable foot which is pivoted to the supporting foot portion to form an adjustable cross therewith. The pivot journal engages the armrest lower edge adjacent the pivot connection with pivotable foot when used as a chaise lounge. A seat is pivoted at one end to the side member in proximity to the pivot journal and is supported in a chair position by a removable crossbar engaging the underside thereof and recesses in strips connected on the inside of the pivotable foot.
    Type: Grant
    Filed: June 11, 1980
    Date of Patent: March 16, 1982
    Inventor: Xaver F. Leonhart
  • Patent number: RE39022
    Abstract: A backpack unit comprising a frame of a material selected from a metal alloy, including, but not limited to, aluminum, aluminum alloy, steel, and steel alloy or plastic. The frame includes a U-shaped seat frame pivotally coupled at its ends to ends of a U-shaped back frame through a cross-member, a U-shaped front leg frame pivotally coupled to the seat panel and pivotally coupled at its ends to ends of a U-shaped back leg frame. The frame is capable of being folded such that the back frame, the seat frame, the front leg frame, and the back leg frame folds substantially parallel and adjacent to one another.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: March 21, 2006
    Inventor: Kerry L. Welsh