Folding Patents (Class 280/639)
  • Patent number: 6371235
    Abstract: A collapsible vehicle having a frame, a non-steerable wheel assembly and a steerable wheel assembly. The frame includes a longitudinal member, a transverse member, an upright member proximal to one end of the longitudinal member, and a steering member proximal to another end of the longitudinal member. The longitudinal member and the transverse member define a base plane. The non-steerable wheel assembly includes a non-steerable-wheel movable between a storage position within the periphery of the frame to a deployed position outside the periphery of the frame and extending below the base plane. The steerable wheel assembly includes a steerable wheel movable between a storage position within the periphery of the frame to a deployed position outside the periphery of the frame and extending below the base plane. A method of using the collapsible vehicle is also disclosed.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: April 16, 2002
    Inventor: Warren R. Wisecarver
  • Publication number: 20020038942
    Abstract: An expandable pediatric walker is provided which has two U-shaped frames which are pivotally connected so as to scissor, and a link is provided between the crossbars of the respective U-shaped frames to define the height of the handgrips supported on the frames, and to allow the walker to be collapsed.
    Type: Application
    Filed: July 24, 2001
    Publication date: April 4, 2002
    Inventors: Paul Gilles, Jason Gustwiller
  • Publication number: 20020017773
    Abstract: A baby rider of simple construction wherein all the components can be dis-assembled and stored within the main ride-on body when packaged, and furthermore, all components can be easily re-assembled by the consumer once the baby rider has been purchased. The baby rider comprises a main body, a front wheel assembly and a rear wheel assembly, wherein both the front wheel assembly and rear wheel assembly are detachably mountable on the main body, and are sized and shaped so as to be packagable within the main body, whereby the front and rear wheel assemblies can be packaged within the main body for subsequent removal from, and assembly to, the main body.
    Type: Application
    Filed: December 18, 2000
    Publication date: February 14, 2002
    Inventor: Man Nelson Chow
  • Publication number: 20020005628
    Abstract: A child seat structure for attachment to a stroller frame includes a child seat having a seat cushion and a seat back support. The seat cushion has a front portion with at least one tab affixed thereto. The child seat structure also includes a passenger support base attachable to the stroller frame. The passenger support base has a trough and at least one opening through the trough. The passenger support base also has at least one projection thereon, such that the tab can pass through the opening and connect to the projection to secure the front portion of the seat cushion in the trough of the passenger support base.
    Type: Application
    Filed: May 8, 2001
    Publication date: January 17, 2002
    Inventors: Curtis M. Hartenstine, Peter Tuckey
  • Patent number: 6328329
    Abstract: The present invention would be a collapsible shopping cart fabricated from plastic or metal. The front and rear sides of the shopping cart of the present invention would be connected to a lower frame at pivot points, allowing the sides to fold down against the lower frame as needed. Four wheels would also be attached to this lower frame. One side of the cart would be curved or rounded at its top, serving as the cart's push handle, with a cross member support bar attached between the outer support arms. The other side of the cart would have additional horizontal support arms attached to the pivot points at the top of its outer support arms, with these horizontal support arms having incorporated hooks at their ends that would allow the horizontal supports to be secured to the cross member support bar on the opposite side of the cart, creating the cart's upper support frame.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: December 11, 2001
    Inventor: William L. Smith
  • Patent number: 6254117
    Abstract: A folding trailer is described including a wheeled first frame portion having a tongue secured thereto which extends forwardly therefrom for connection to a hitch adapter which is mounted on the hitch of the an all-terrain vehicle. A second frame portion is pivotally secured to the rearward end of the wheeled frame portion and a rear frame portion is pivotally secured to the rearward end of the second frame portion in such a manner that it may be pivotally moved upwardly from a horizontally disposed position on the rearward end of the second frame portion to an upwardly extending position. The rear frame portion may be folded onto the second frame portion with those frame portions being folded upon the wheeled frame portion. The trailer may then be pivotally moved upwardly and secured to the rack of the all-terrain vehicle.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: July 3, 2001
    Assignee: Cycle Country Accessories, Corp.
    Inventor: Gary Cross
  • Patent number: 6241275
    Abstract: A link configuration for a wheelchair having laterally spaced side frames comprises a plurality of links extending between the wheelchair side frames. Each link has opposing ends. One of the ends of each link is pivotally coupled to one of the side frames. The other end of each link is pivotally coupled to the other side frame. Each link has a hinge to permit the links to fold. The links are foldable in non-parallel planes relative to one another. An interference member coupled to the hinge of one of the links is engageable with the hinge of the other link upon unfolding the links to couple the links together.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: June 5, 2001
    Assignee: Sunrise Medical HHG Inc.
    Inventor: Murray G. Slagerman
  • Patent number: 6217056
    Abstract: The walking aid includes a stick body inclined in the forward-and-backward direction so that the lower end thereof is positioned forward, a support rod installed behind the stick body and inclined so that lower end thereof is positioned backward, and wheels provided on both sides of the lower end of the stick body and on both sides of the lower end of the support rod, steering being carried out by turning the stick body, wherein a rocking mechanism is provided at the wheel installation portion of the stick body to support an axle rotatably with respect to its axis in the forward-and-backward direction. With this kind of structure, even when the stick body is tilted or steered, the axle rocks automatically so that the wheels on both sides remain contact with the ground at all times, whereby it is possible to obtain a stable, easy-to-use walking aid.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: April 17, 2001
    Inventor: Kimihiro Tsuchie
  • Patent number: 6196566
    Abstract: This lightweight folding bicycle adopts the four-bar-linkage-folding-frame. Two diagonal-bar-hinges are added. Each diagonal-bar-hinge is made up of two parts. One end of the diagonal-bar-hinge hinge joints in the middle of a seat tube at the same point as a standing tube hinged, the other end of the diagonal-bar-hinge joints in the middle of a crossbar at the same point as a down tube hinged. There is a four-bar-linkage-speed-folding-fastener on a handlebar stem and a folding device on the pedal. This type of folding bike is of simple structure, reasonable design and easy to fold. The four-bar-linkage-speed-folding-fastener grips a large area, which can press half the circle as maximum, so as to enlarge the suffering area and balance the received force. It is easy and quick to fold the bike and safe to drive.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: March 6, 2001
    Inventor: Guanli Zhang
  • Patent number: 6173986
    Abstract: A wheel chair is provided, including a wheel chair frame including a seat portion, an axle structure and two lateral wheels mounted to the axle structure for rolling the wheel chair over a support surface; and a manual propulsion mechanism including first and second clutches mounted to the wheel axle structure, each of the clutches having an outer clutch drum which engages and rotates an internal clutch core affixed to the wheel axle structure when rotated in one direction and disengages the clutch core and spins freely when rotated in the opposing direction; a lever arm affixed to a lever arm axle rotatably fitted through the frame to a drive cable pulley; a drive cable engagingly wrapped around the drive cable pulley and engagingly around the first clutch drum, and extending from the first clutch drum engagingly around a reversing pulley rotatably mounted on a pulley stem secured to the frame, and from the reversing pulley engagingly around the second clutch drum wound in the opposite direction from its win
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: January 16, 2001
    Inventor: Jack Sicher
  • Patent number: 6120044
    Abstract: A rollerboard includes a tube having a front wheel secured to the bottom and having a handle. A bracket is pivotally coupled to the tube and has a lower portion pivotally coupled to a board for allowing the bracket to be folded relative to the board to a compact folded configuration. A beam has a lower portion pivotally coupled to the board and has an upper portion pivotally coupled to a bar at a pivot pin. The bar is pivotally coupled to the bracket. The pivot pin may be forced toward the bracket for securing the tube at the vertical position relative to the board.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: September 19, 2000
    Inventor: Suei Der Tsai
  • Patent number: 6050592
    Abstract: A combined golf bag and collapsible golf cart (10) comprising a golf bag assembly (12) for holding various golf clubs and supplies. A golf cart assembly (14) is permanently built into the golf bag assembly (12). A structure (16) is for moving the golf cart assembly (14) from a retracted position in which the golf cart assembly (14) nests against the golf bag assembly (12) to an extended position away from the golf bag assembly (12), so that the golf bag assembly (12) can be transported by the golf cart assembly (14) along the ground.
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: April 18, 2000
    Inventor: Hyung Ho Kim
  • Patent number: 6003894
    Abstract: A vehicle for transporting a removable product carrier having a pair of handles, such as a bag. The vehicle has a wheeled frame and a pivotal forward frame member which can be collapsed against the frame or positioned at a predetermined pivotal orientation in relation to the frame. A pair of suspension brackets, one each on the forward frame member and the frame, engage the handles of the product carrier to suspend it in the vehicle.
    Type: Grant
    Filed: June 19, 1998
    Date of Patent: December 21, 1999
    Assignee: Nelson-Whittaker, Ltd.
    Inventor: Jay A. Maher
  • Patent number: 6000712
    Abstract: A folding collapsible golf cart includes a U-shaped base frame, a U-shaped upright frame pivoted to the base frame and turned between a horizontal position and a vertical position, a brace member pivoted to the base frame for supporting the upright frame in the vertical position, a U-shaped handle pivoted to the upright frame and turned between a first position where the handle and the upright frame are longitudinally aligned, and a second position where the handle is collapsed and closely attached to the upright frame, two front wheels and two rear wheels respectively mounted on the base frame and the upright for supporting the folding collapsible golf cart on the ground, a bottom golf bag cradle and a top golf bag cradle respectively mounted on the base frame and the upright frame for holding a golf cart.
    Type: Grant
    Filed: March 19, 1998
    Date of Patent: December 14, 1999
    Inventor: David Wu
  • Patent number: 5957482
    Abstract: A child's wagon movable between a use position and a folded, compact, storage configuration. The wagon has a transversely divided bed so that the bed can be hinged for folding from a flat position for use to a position in which the two bed halves are in face-to-face contact for storage. The wagon can be securely latched in either of the use and storage positions. Removable rail modules are provided with extending pegs that fit in holes through the bed along the edges of the bed. In use, the rail modules are installed in the bed to provide sidewalls while in the folded position the rail modules are installed in the same holes in what was the bottom of the wagon. Wings may be provided that can be fastened to side rails to extend upwardly and outwardly of the wagon sides. The wheels and their mounting assemblies may be removable.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: September 28, 1999
    Inventor: Thomas E. Shorter
  • Patent number: 5931488
    Abstract: A wheeled folding gateleg table having a frame member, table top and a pair of gatelegs. Each gateleg includes a foot and at least one wheel on one foot for rolling movement of the upright table.
    Type: Grant
    Filed: May 6, 1997
    Date of Patent: August 3, 1999
    Assignee: Bretford Manufacturing, Inc.
    Inventors: Salvatore S. Graziano, Mark Stenftenagel, James W. Brown
  • Patent number: 5863053
    Abstract: A mechanic's creeper composed of two separable sections. One of the sections is configured to be used as a seat, but is otherwise coupled with the other section to form the creeper. The separable sections are coupled in a manner that enables the sections to be coupled and uncoupled while a user remains seated on the seat portion. The creeper is also adapted to accommodate attachments that can be interchangeably coupled to the seat portion.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: January 26, 1999
    Inventor: Billy Joe Berry
  • Patent number: 5730449
    Abstract: A foldable creeper for supporting a person, the creeper articulated along a line which extends transversely along the approximate longitudinal centerline for movement between an open position and a folded storage position, and comprising articulating joints, a framework comprising longitudinal and transverse frame members, the longitudinal frame members constructed with a plurality of arches sized to accommodate the attachment of casters, the transverse frame members rigidly connecting left and right longitudinal frame members, the lower surface, and preferably the upper surface, of said transverse frame members positioned below the apex of the concave portion of the arched caster attachment points when said creeper is in the open position, support panels having top sides and bottom sides and connected to said transverse frame members, and casters connected to the frame members for supporting said frame members above the ground when said creeper is in the open position.
    Type: Grant
    Filed: October 31, 1995
    Date of Patent: March 24, 1998
    Assignee: Mechanic Accessory, Inc.
    Inventor: Joseph J. Miles
  • Patent number: 5667230
    Abstract: A rack lift assembly (10) includes a side mount plate (12) that can be connected to an equipment rack holding telecommunication equipment. A caster plate (14) connects to the side mount plate (12) by a loose pin hinge (26) and by a latch pin (18). The latch pin (18) has two apertures (22 and 24) that can receive a deadbolt (20) from caster plate (14). Caster plate (14) includes a wheel (34) that is placed in contact with the floor or ground when the deadbolt (20) is secured within the first aperture (22) of the latch pin (18), placing the caster plate (14) in its operating position. The caster plate (14) is placed in an inoperational position by securing the deadbolt (20) into the second aperture (24) of the latch pin (18). The side mount plate (12) includes rollers (16) that allow for transportation of telecommunication equipment during low clearance situations while the caster plate (14) is placed in its inoperational position.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: September 16, 1997
    Assignee: DSC Communications Corporation
    Inventors: David M. Riley, Curtis W. Olson, Jeffrey S. Williamson, Brian M. Attard, Michael K. Pratt
  • Patent number: 5664799
    Abstract: An integrated transport and display module has a plurality of wall panels that are pivotally interconnected to each other. The panels are movable from a transport mode position in which the panels complete, enclose and protect a merchandise transport space to a multitude of alternate positions in which panels present display surfaces.
    Type: Grant
    Filed: March 1, 1995
    Date of Patent: September 9, 1997
    Inventor: Michael J. Cavanaugh
  • Patent number: 5611552
    Abstract: A foldable creeper for supporting a person, the creeper articulated along a line which extends transversely along the approximate longitudinal centerline for movement between an open position and a folded storage position, and comprising articulating joints, a framework comprising longitudinal and transverse frame members, the transverse frame members rigidly connecting left and right longitudinal frame members, said transverse frame members including a central lower segment for supporting a support panel, the central lower segment positioned from one-half to four inches below said longitudinal frame members when said creeper is in the open position, support panels having top sides and bottom sides and connected to said transverse frame members, and casters connected to the frame members for supporting said frame members above the ground when said creeper is in the open position.
    Type: Grant
    Filed: September 11, 1995
    Date of Patent: March 18, 1997
    Assignee: Mechanic Accessories, Inc.
    Inventors: Joseph J. Miles, Joseph B. Miles
  • Patent number: 5599031
    Abstract: A dolly for movably supporting a load having an adjustable frame with side members and end members. Each side member and end member consists of slidable sections in telescoping relationship for adjusting the length and width of the frame. An adjustable leg is carried on each corner of the frame where adjacent ends of the side members and end members are joined and a load-bearing pad is carried on the end of each leg. Each leg is insertably disposed in the fixture which has a hold-down or tie-down opening provided therein. A wheeled support is carried on the underside of the frame for transport purposes.
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: February 4, 1997
    Inventor: Douglas Hodges
  • Patent number: 5577744
    Abstract: A multi-purpose utility cart having a rigid wheeled platform with a cushion secured to an upper surface of the platform and a set of interchangeable wheels along a lower surface. A support bracket having a rotatable pad is coupled to pivot members mounted on the platform by leg members. The leg members are movable and can be secured in most any angular position thereby allowing the support bracket to be used as a back support, a chest support, or a head support.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: November 26, 1996
    Inventor: James E. Parks
  • Patent number: 5570898
    Abstract: A folding trailer is disclosed for carrying a motorcycle including a front deck with a rear edge extending generally transversely of the trailer, a rear deck with a front edge extending generally transversely of the trailer and generally parallel to the front deck rear edge, hinge means including a pivot axis connecting the front deck to the rear deck so that the trailer folds around the pivot axis between an extended position in which the front and rear decks are generally co-extensive and a folded position in which the front and rear decks are positioned generally facing one another, an axle mounted generally transversely of the trailer to the rear deck rearwardly of the hinge means including a first and a second end, and a road wheel attached to the axle first end and a road wheel attached to the axle second end, so that the trailer is designed to move generally normal to the axle.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: November 5, 1996
    Assignee: Myco Trailers, Inc
    Inventor: Michael Albert
  • Patent number: 5503417
    Abstract: A merchandise display apparatus is disclosed, which comprises a foldable/erectable tubular structure formed of a series of foldably connected wall panels. When erected, the tubular support has at least three sides, at least one of which has an intermediate hinge line to accommodate a bellows fold. A plurality of caster assemblies is provided, one for each corner of the polygonal configuration formed by the erected tubular support. The caster assemblies include rigid channel-forming flanges, arranged at a predetermined angle corresponding to the corner angles of the erected polygon. When the foldable polygon is erected, the caster assemblies are applied over the lower end portions, at each corner, providing mobile support for the structure and simultaneously rigidly securing the otherwise foldable wall panels in the desired, erected cross sectional configuration. A rigid forming panel is inserted into the erected structure and is supported by the caster assemblies.
    Type: Grant
    Filed: February 13, 1995
    Date of Patent: April 2, 1996
    Inventor: Thomas V. Murphy
  • Patent number: 5393094
    Abstract: Part (1, 2, 3, 4, 5, 6, 7) of the column comprising the steering wheel (1) is movable between a utilization position and a retracted position in which the steering column occupies a reduced volume of the vehicle passenger compartment. The seat of the driver of the vehicle comprises a back, part of which is movable between a service position and a position inclined forward. The steering column comprises connection structure (16, 17, 19, 9, 12) connecting it to the movable part of the seat back and making it possible to control the movement of the movable part (1, 2, 3, 4, 5, 6, 7) of the steering column by the operation of the movable part of the seat back. Use in particular for convertible vehicles.
    Type: Grant
    Filed: September 30, 1993
    Date of Patent: February 28, 1995
    Assignee: Hobbycar
    Inventor: Francois Wardavoir
  • Patent number: 5228712
    Abstract: A fully collapsible ramp trailer is disclosed which is provided with an adjustable axle for balancing the weight of a vehicle-towed motorcycle for optimum transport. In the assembled disposition, the ramp unfolds into three rigidly coupled sections with a hinged rear ramp. The forward section of the ramp trailer includes a fount wheel capturing well for receiving the front wheel of a motorcycle. The middle section of the ramp in the assembled disposition rigidly braces relative to the capturing wheel well portion at one end and rigidly braces to the axle section of the ramp at the other end to form a unitary and rigid bed upon which the motorcycle can be rolled for loading and unloading. The rear ramp hinges with respect to the three section ridged frame and moves from a ground engaged ramp position to an upwardly folded abutted position to the rear wheel of a loaded motorcycle.
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: July 20, 1993
    Inventor: Guenter O. Speier
  • Patent number: 5205573
    Abstract: The bicycle can be disassembled in a compact arrangement, and comprises front and rear foldable subassemblies, and first and second couplers for detachably connecting these front and rear subassemblies together. The couplers connect respectively a front end of the crossbar to the head tube, and a lower end of the down tube to the pedal crank axle housing. The front subassembly includes a down tube having an upper end pivotally connected to the head tube for folding the down tube over the front wheel fork.
    Type: Grant
    Filed: April 17, 1992
    Date of Patent: April 27, 1993
    Inventor: Sghaier Mhedhbi
  • Patent number: 5181731
    Abstract: A pivotable cart is disclosed which has a first and second support members for supporting a rolled material. The first and second support members are pivotable relative to each other to a storage position. In the pivoted storage position, the cart requires a minimum amount of space. The cart may be easily pivotable outwardly to a use position where it will adequately support an elongate rolled material. The support members are preferably identical, and connected to a pair of spaced wheels such that the support members pivot about the wheel axis relative to each other. A chain prevents the two support members from pivoting relative to each other beyond a predetermined amount. Further, the support members each include a support surface having a generally V-shape with an apex aligned with an apex of the other support member to provide a ditch for support of the coiled material.
    Type: Grant
    Filed: August 30, 1991
    Date of Patent: January 26, 1993
    Inventor: Willard Gustavsen
  • Patent number: 5069468
    Abstract: This invention relates to a collapsible bicycle and in particular to one including a top tube, a seat tube pivotally connected with one end of the top tube, a down tube pivotally connected at the lower end with a lower end of the seat tube and being collapsible at the intermediate portion, a reinforcing tube pivotally connected at the upper end with an intermediate portion of the top tube and having at the lower end two rollers and a spring-loaded positioning member adapting to groove and the recess of the down tube respectively, a head tube fixedly connected with down tube and pivotally connected with the top tube, a handlebar composed of a major bar and an auxiliary bar, and two crank arms pivotally connected with an axle of the bicycle and being able to be folded in alignment with center of the axle.
    Type: Grant
    Filed: August 14, 1990
    Date of Patent: December 3, 1991
    Inventors: Shu-Huey Tsai, Duan-Huey Tsai
  • Patent number: 5052706
    Abstract: A foldable bicycle which is characterized by a top bar of the main frame having two angled and pivotally connected sections allowing the front portion of the bicycle to be folded downwardly and backwardly toward the rear portion of the frame by a two-piece support bar provided between the main frame and the saddle pillar of the bicycle, which has a control lever to quickly separate the support bar for folding purposes, by a handle-bar stem having a locking mechanism at its lower portion which has a pulling arm for quickly controlling the bending or straightening of the handle-bar stem; and by a pair of pedals which may be turned inwardly due to a special connection thereof, the bicycle is easily folded.
    Type: Grant
    Filed: June 5, 1990
    Date of Patent: October 1, 1991
    Inventors: Duan-Huey Tsai, Shwu-Huey Tsai
  • Patent number: 4895382
    Abstract: A distribution system comprises box-shaped transport containers, (5) each provided with a bottom (18) and walls (20), and a truck (1) provided with wheels and having swinging side walls (3 and 4) in hinged connection with a vertical end wall (2). The side walls (3 and 4) have supporting elements placed oppositely in pairs, e.g. horizontal L-shaped rails (22) which are positively engageable with members formed on the transport trays (5), e.g. channels (21). The channel members are incorporated at the bottom (18) of the transport trays, to facilitate in cooperation with the L-shaped rail members loading by insertion of the transport trays (5) and securing of the side walls (3 and 4) when the side walls are in their active position.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: January 23, 1990
    Assignee: AB Tetra Pak
    Inventor: Kjell Andersson
  • Patent number: 4856810
    Abstract: A collapsible transport cart having down-folding side and end panels is disclosed. The side and/or end panels are spring biased in directions so as to assist the user in converting the cart from a collapsed to an operative configuration. A tow bar/handle is attached to the front of the cart so as to be generally pivotal in a vertical plane. Also provided is means whereby the tow bar/handle may be locked in a vertical "ready" position while not in use.
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: August 15, 1989
    Inventor: Gordon N. Smith
  • Patent number: 4758008
    Abstract: In a folding trailer (1) comprising at least a bottom (2), two wheels (17) connected to the bottom by a wheel suspension, and a towing bar (7) for coupling the trailer to a tractive vehicle. The bottom comprises a central section (3) at the height of the wheels (17), a front and rear sections (5,4) each of which can be moved relatively to the central section (3) between a working position in which they lie in one plane with the central section and a folded position in which they lie parallel to each other and transversely to the central section. The wheel suspension (42) is shaped in such a way that the wheels (17) can be accomodated within the space defined in the folded state by the central section and the front and rear bottom sections.
    Type: Grant
    Filed: March 4, 1987
    Date of Patent: July 19, 1988
    Inventor: Albertus Moddejonge
  • Patent number: 4580799
    Abstract: A foldable and convertible creeper device is disclosed having two portions hinged together such that one portion may be folded over onto the other portion. In its folded position, the creeper device is compact and easy to transport. In its extended condition, in which the two portions are adjacent each other, the device provides support for a person in a generally horizontal position. Casters attached to the undersides of the portions allow the device to be readily moved by the user. A foldable seat may be attached to the underside of one of the portions, the seat being movable between folded and extended positions to enable the device to be used as a movable stool. When the device is used as a creeper, the seat is folded beneath one of the portions. When the device is to be utilized as a movable stool, the portions are folded over such that the seat is on the upper surface and then it may be placed in its extended position to support the user.
    Type: Grant
    Filed: November 28, 1983
    Date of Patent: April 8, 1986
    Inventor: Silvio C. Quinonez
  • Patent number: 4540196
    Abstract: A folding caddy comprising a foldable bottom consisting of at least two bottom members with wheels attached thereto, a handle for pushing or pulling the device, and a rear wall which is also foldable and consists of at least two rear-wall members. The rear-wall members are hinged to wheel guards and the bottom is, on opposite sides, also hinged to the wheel guards.
    Type: Grant
    Filed: February 14, 1983
    Date of Patent: September 10, 1985
    Assignee: Maxilin B.V.
    Inventors: Max G. Paping, Bjorn O. Goossens
  • Patent number: 4522425
    Abstract: A two wheel trailer comprising a trailer body having a deck and a pair of vertically oriented side portions which mount trunnions carrying the suspension arms of a pair of wheels. Locking mechanisms are actuable to permit downward and inward rotation of the trunnions to locate the wheels beneath the upper deck of the trailer body in a compact, recessed relation. Combined spring and shock absorber devices are carried by the trailer body for engagement with the suspension arms. An elongated towing tongue is telescopable within the trailer body. In a preferred embodiment the trailer body includes two hinged together sections, the rearward section mounting the tail lights being pivotable to underlie and enclose the retracted wheels located within the forward section. The folded sections are designed to fit within the trunk of a typical passenger vehicle.
    Type: Grant
    Filed: December 7, 1982
    Date of Patent: June 11, 1985
    Inventors: Harry J. Cornwall, Daniel E. Hanebrink
  • Patent number: 4506897
    Abstract: A collapsible luggage carrier has a base with depending peripheral walls forming a boundary enclosed underside in which hinged wheel brackets are affixed to the underside at hinge points spaced from one another a distance sufficient to allow wheels carried by the brackets to be collapsed inwardly in opposed folded non-overlapped relation. A U-shaped cross-section lock bracket is hinged to one of the peripheral walls or to a cross wall with the legs of the bracket directed inwardly towards the underside of the base, the legs being spaced apart a distance sufficient to engage the wheel brackets in both the wheel collapsed and wheel extended positions and to retain the wheels respectively in each of said positions.
    Type: Grant
    Filed: December 13, 1982
    Date of Patent: March 26, 1985
    Inventor: Sidney M. Libit
  • Patent number: 4471969
    Abstract: A combination portable dolly and collapsible stool for transporting photography equipment and the like, and for providing an elevated platform for taking photographs. The legs of the stool are pivotally mounted at opposite ends of a rectangular box platform and are braced by members (which may be U-shaped) that are pivotally secured to vertical portions of the stool legs and which have free ends that are secured by a latching means in either extended leg bracing position or in collapsed carrying position.Rollers are mounted on the exterior of the legs adjacent the pivots so that when the legs are collapsed the rollers support the base platform as a dolly. In such collapsed condition, the legs rest within each other and are secured together by an interlocking means.
    Type: Grant
    Filed: March 24, 1982
    Date of Patent: September 18, 1984
    Assignees: Teresa Ann Zabala, Judith Ann Olson
    Inventors: Teresa A. Zabala, David L. Affleck
  • Patent number: 4471972
    Abstract: A propulsion and steering device for a conventional wheelchair or the like which includes a frame and attachment instrumentalities extending from the frame to the wheelchair, propulsion and steering instrumentalities which form a part of the frame and include a steerable wheel, and a folding instrumentality integrally formed with the frame to collapse the frame for storage, in which the folding mechanism is relatively adjustable which changes the steering rake angle to accommodate people of different dimensions, and the propelling area is rotatably adjustable to similarly accommodate people of different dimensions.
    Type: Grant
    Filed: April 20, 1982
    Date of Patent: September 18, 1984
    Inventor: Raymond L. Young
  • Patent number: 4460191
    Abstract: A foldable bicycle frame includes a lower frame and a front frame pivotally mounted on the lower frame, the lower frame having fork elements supporting a rear wheel axle. A seat tube is pivotally mounted on the lower frame. A front support stay is pivotally mounted on the front frame and is also pivotally mounted on the seat tube. A seat stay has an upper section and a lower section, the upper section being pivotally connected to the seat tube, the lower section being pivotally connected to the lower frame at the fork elements, the upper and lower sections each having a pair of upper and lower stay members respectively and a locking plate device connecting the upper and lower sections and operable to selectively provide a pivotal connection between the upper and lower sections to provide for folding of the bicycle and to effect a rigid connection between the upper and lower sections to provide assembled operability of the bicycle frame.
    Type: Grant
    Filed: May 14, 1982
    Date of Patent: July 17, 1984
    Assignee: Bridgestone Cycle Co., Ltd.
    Inventors: Hideyuki Ishibashi, Kikuzo Takamiya
  • Patent number: 4460192
    Abstract: A frame for a folding bicycle includes a base frame having a triangular configuration, the base frame having a pair of back forks and a pair of lower stays joined to a pair of end members respectively. A main pipe is interconnected between the pair of back forks and the pair of lower stays, and a quadric link is connected to the triangular base frame. The guadric link includes the main pipe, a seat pipe, a front pipe, and an upper stay, along with a first pivot pivotally connecting the main pipe and the seat pipe to provide pivotal movement of the seat pipe relative to the main pipe, a second pivot pivotally connecting the main pipe and the front pipe to provide pivotal movement of the front pipe relative to the main pipe, a third pivot pivotally connecting the front pipe and the upper stay to provide pivotal movement between the front pipe and the upper stay, and a fourth pivot pivotally connecting the seat pipe and the upper stay to provide pivotal movement between the seat pipe and the upper stay.
    Type: Grant
    Filed: November 12, 1982
    Date of Patent: July 17, 1984
    Assignee: Bridgestone Cycle Co., Ltd.
    Inventors: Kikuzo Takamiya, Hideyuki Ishibashi
  • Patent number: 4362316
    Abstract: A folding trailer is provided having a chassis supported by at least one pair of road wheels and a load bearing platform supported by the chassis, the load bearing platform being formed in two sections which are foldable between a first position in which the sections lie in a common plane and a second position in which the sections lie juxtaposed in parallel planes. When in the second position the trailer can be moved into a substantially vertical plane for stowage.
    Type: Grant
    Filed: August 27, 1980
    Date of Patent: December 7, 1982
    Inventor: John O. Wright
  • Patent number: 4338872
    Abstract: A multiple section grain drill has a main frame with a transverse segment; a grain container mounted on the frame for receiving grain; an auger mounted on the main frame and in communication with the grain in the container for bidirectionally moving the grain; at lease one wing frame slidably engaging the main frame; hydraulic power for moving the wing frame; a wing auger mounted on the wing frame for receiving grain from the auger; furrow openers connected to the transverse segment and to the wing frame for generating furrows; grain distributing tubes in communication with the auger and wing auger for depositing the grain in the generated furrows; furrow closing and pressing members attached to the transverse segment and to the wing frame; and power for driving the auger and wing auger, for pivoting the furrow opener and furrow closing, for pressing, and for rendering power to the hydraulic power.
    Type: Grant
    Filed: April 14, 1980
    Date of Patent: July 13, 1982
    Inventor: Lester H. Decker
  • Patent number: 4326731
    Abstract: A material transporting cart, including a horizontal platform upwardly pivotable about a transverse hinge across its center, the opposite ends of the platform being pivoted on vertical end frames, the lower ends of the end frames and the upwardly foldable central portion of the platform being mounted upon wheels for travel on a ground, and the platform divided by the hinge into two components additionally including a swivel pin near the hinge so that one component pulls the other when the cart is in use.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: April 27, 1982
    Inventors: Stephen Woychio, George Spector
  • Patent number: 4239258
    Abstract: An improved retractable fold-up and extensible trailer typically for towing behind automotive vehicles, wherein the respective load accommodating sections of the trailer are interfittable and foldable into a compact configuration for storage and are extensible to form an enlarged trailer or bed for use. Essentially the trailer bed is in three sections, a center section attached to a wheel and axle assembly, and forward and rearward sections hingedly connected thereto. Latches are provided to retain the sections in either folded or unfolded positions, and a retractable tongue is provided on the front section for towing. The trailer may have nesting side portions or may be adapted to accommodate removable sides constructed in conventional stake body form.
    Type: Grant
    Filed: December 11, 1978
    Date of Patent: December 16, 1980
    Inventor: Frank H. Burris
  • Patent number: 4181315
    Abstract: A tractor with two engines arranged in tandem, each carried by a frame portion pivotable relative to the other about a vertical axis under the rear engine. The body of the tractor is narrow forward and to the rear wherein axles for front and rear sets of ground engaging wheels extend laterally and mount six wheels each. The front engine and rear engine extend forward of the respective front and rear sets of ground wheels. The front frame portion is turnable axially relative to the rear frame portion and steering is accomplished by the relative pivoting of the portions about the aforesaid vertical axis. A fuel tank forms a guard over the rear set of wheels and includes a depression for an operator's seat. The fuel tank has a central partition and is optionally hinged in its outer portions whereby the width of the tractor is reduced by removing the outer wheels and pivoting the outer portions of the fuel tank to the rear. A lifting device extends aft between the central rear wheels.
    Type: Grant
    Filed: July 8, 1976
    Date of Patent: January 1, 1980
    Inventor: Cornelis van der Lely
  • Patent number: 4119331
    Abstract: A collapsible trailer has a rigid base framework formed from longitudinal members and transverse stringers supporting an axle having wheels. On the framework in a seat support structure having a forward, rearwardly angling arm, and a rearward, forwardly angling bracket that are joined in a T-shaped sleeve assembly that includes a transverse sleeve pivotable on the rear bracket and a longitudinal sleeve that engages the arm in socketed relationship. A turnbuckle tensions the bottom of the seat against the framework to hold the supporting structure at any desired degree of firmness. A rear cargo platform is firmly attached to the framework at its forward end and has a foldable rearward end that rests against the wheel axle when in unfolded position.
    Type: Grant
    Filed: September 26, 1977
    Date of Patent: October 10, 1978
    Inventor: R. Kelley Jackson
  • Patent number: 4089542
    Abstract: A foldable vehicle is adapted to be transported in its own container on the back of a motor home, yacht, or the like, for storage or shipping. The vehicle is motorized and has a chassis and a plurality of wheels along with passenger seats. The vehicle has means for raising and lowering the wheels relative to the chassis between an operative position and a collapsed position. In addition, the hood, window frame, steering wheel column, steering wheel, seats, and roll bar fold to provide a compact, folded vehicle for a shipping or storage container.
    Type: Grant
    Filed: August 16, 1976
    Date of Patent: May 16, 1978
    Inventor: William J. Westerman
  • Patent number: 3971594
    Abstract: An apparatus for milling road surfaces, the apparatus including an elongated milling roller having hard metal cutters and being adapted to be driven around its central horizontal axis. A pair of end supports extend across opposed ends of the roller normal to the axis thereof, these end supports having projections which extend forwardly of the roller.
    Type: Grant
    Filed: July 9, 1974
    Date of Patent: July 27, 1976
    Inventor: Reinhard Wirtgen