Three-wheel Patents (Class 280/62)
  • Patent number: 5568934
    Abstract: The adjustable tricycle of the present invention encompasses a body having a front and a rear, a front wheel rotatably attached to the front of the body, a handle bar member pivotally connected to the front of the body for steering the front wheel, a pivotable link mounted on the body; a pair of rear wheels rotatably mounted on the pivotable link, and a positioning device pivotally connected to the pivotable link for controlling the position of the body with respect to the rear wheels. The pivotable link and pivoting positioning device form an angular positioning device which controls the position of the body with respect to the rear wheels. In the preferred embodiment, the positioning device is a support bar capable of interlocking the rear end of the body in at least two locations.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 29, 1996
    Assignee: Roadmaster Corp.
    Inventor: Duane J. Niemeyer
  • Patent number: 5562300
    Abstract: A jogging stroller includes a tricycle wheeled frame adapted for the installation of an existing vehicle child safety seat therein. Most such seats include clips which are attachable to a metal rod structure, as found in the typical grocery shopping cart, and the present stroller includes such structure providing for the rigid clipping of such seats to the stroller frame. Alternatively, the seats may be strapped to the frame if desired. Preferably, the frame structure is formed of steel tubing for strength and durability. The wheels are relatively large, preferably being of fifteen inch diameter, in order to provide for ease of movement over uneven terrain, and are quickly and easily removable without need for tools in order to provide for compact storage. The handles are foldable over the remainder of the structure when the seat is removed, for further compact storage. The handle grips are forwardly angled, for optimum ergonomics for a person pushing the stroller.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: October 8, 1996
    Inventor: Richard L. Nelson
  • Patent number: 5536033
    Abstract: A three-wheeled jogging stroller with demountable wheels, a removable cloth-like seat and a collapsible frame assembly. The frame assembly includes a primary structural rear axle assembly having a member of an enlarged diameter tubular construction with couplers at opposite ends thereof for supporting demountable or removable large diameter spoked wheel pneumatic tires with the axles thereof canted so that the wheels are downwardly divergent relative to the ground. The rear axle assembly has pivotally coupled thereto a pair of upright support members and a fork assembly. A pair of generally parallel fork members support the removable front wheel at one end thereof, while at the other end, the fork members are pivotally coupled to the rear axle member by means so that the pivotable coupling is displaced, or offset, a given distance from the axis of the rear axle member so that, on folding, the fork and the upright support members are generally parallel to one another.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: July 16, 1996
    Inventor: Paul Hinkston
  • Patent number: 5524917
    Abstract: Disclosed is a new lightweight snowplow dolly for aiding in removing and attaching a lightweight pickup truck-type snowplow blade assembly and also moving and storing the removed blade assembly. The lightweight snowplow dolly comprises a generally horizontal trapezoidal frame structure formed of side, front, and rear tubular steel members. The front member is longer than the rear member for supporting a plow blade whereas the rear member is spaced from the front member for supporting a plow frame. A downwardly depending fixed caster wheel assembly is mounted to the front member proximal each end thereof and a downwardly depending swivel caster wheel assembly is centrally mounted to the rear member. An upwardly projecting guide post is integrally mounted proximal each end of the front member whereby a plow vehicle operator may align the plow blade when positioning the plow assembly on the frame prior to removal from a vehicle.
    Type: Grant
    Filed: August 3, 1994
    Date of Patent: June 11, 1996
    Inventors: Leroy P. Iverson, Gloria M. Iverson
  • Patent number: 5503411
    Abstract: A rocker/tricycle combination toy is provided that can be used as either a rocking toy for children or a conventional tricycle. A tricycle can detachably connect to a rocking base so that a child can sit on the tricycle and rock back and forth. The rocking base is curved about a transverse axis for allowing rocking motion in a longitudinal direction. The tricycle is connected to the base through a support that includes a locking post that engages a socket provided in the underside of the tricycle. The rocking base can include troughs for receiving the rear wheels of the tricycle to retain the tricycle in alignment with the base. The rocking base can also include a trough for receiving the front wheel of the tricycle that allows a child to pedal the front wheel when the tricycle is mounted on the base. In another embodiment, the trough for receiving the front wheel can be configured to allow a child to steer the front wheel when the tricycle is mounted on the base.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: April 2, 1996
    Assignee: Safety 1st, Inc.
    Inventors: Brian C. Sundberg, Michael S. Bernstein, Edward C. Owen
  • Patent number: 5503416
    Abstract: An undercarriage for heavy diagnostic equipment having a selectably engageable swivel mechanism activated by the movement of a cam to allow the undercarriage to be turned when desired and rolled in a straight line when necessary, a selectably engageable braking mechanism to prevent movement of the undercarriage when desired, but allowing the undercarriage to be moved quickly if needed, and a balance wheel assembly to prevent the undercarriage and equipment from becoming unstable when encountering obstacles, while allowing the undercarriage to be rolled up inclines. An aspect of the invention allows the swivel and braking mechanisms to be selectively engaged from the same point along the undercarriage, thereby providing superior control of the undercarriage and the equipment which it carries.
    Type: Grant
    Filed: March 10, 1994
    Date of Patent: April 2, 1996
    Assignee: OEC Medical Systems, Inc.
    Inventors: Gary Aoki, Timothy D. Bowman
  • Patent number: 5501478
    Abstract: An occupant propelled three wheeled vehicle, e.g., a tricycle, includes a frame, a seat, a front driven wheel, two laterally spaced steerable rear wheels and handlebar steering mechanism. The front wheel is driven via a gear and chain arrangement by a pedal assembly which is located at least partially rearwardly of the front wheel axis. The handlebar steering mechanism is located forward of the seat and controls the steering of the rear wheels by simultaneously rotating each rear wheel about a respective vertical axis. The handlebar steering mechanism includes levers which independently control the braking of the two rear wheels and the front wheel. The handlebar steering mechanism also includes a gear shift lever permitting the user to selectively choose a desired gearing ratio between the pedal assembly and the front drive wheel. The seat is positioned with respect to the pedal assembly for substantially upright pedalling, as opposed to recumbent pedalling.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 26, 1996
    Assignee: Robert L. Doan
    Inventor: David G. Doan
  • Patent number: 5499835
    Abstract: A motorcycle stroller including a trike frame. The trike frame has a front end, a rear end and a base with brackets on a lower area thereof. The front end has a housing attached and seated on a front section of the base. The housing has seated thereon a casing. The casing has a front portion with a throat with a front fork, an upper surface and a cavity therein. Included is a handlebar that is attached to the throat at a side opposite the front fork. The rear end of the frame has positioned thereon a storage unit. The storage unit has a bottom wall integral a rear section of the base of the frame, a rear wall, a front wall with a horizontal projection in a plane above the bottom wall and a pair of opposed side walls and an opening along an upper edge. The side walls each have a side opening. Included is a lid that has a rear edge hingeablly coupled to the horizontal projection. A front wheel and two rear wheels to support the frame. A seat positioned on the base.
    Type: Grant
    Filed: June 22, 1995
    Date of Patent: March 19, 1996
    Inventors: Samuel Skirchak, Jr., Jacqueline A. Skirchak
  • Patent number: 5486015
    Abstract: This invention discloses a front wheel steering, front wheel drive, light weight, foldable, ground transportation vehicle. The disclosed vehicle is constructed for convenient manual transformation between a deployed operating configuration, for transporting one or more passengers, and a compactly folded position, for facilitating toting the vehicle about as well as stowing it away. Two-wheel and three-wheel versions of the vehicle are set forth. Both such embodiments can utilize basically the same drive and steering constructions.
    Type: Grant
    Filed: April 13, 1994
    Date of Patent: January 23, 1996
    Inventor: James C. K. Lau
  • Patent number: 5476275
    Abstract: An all terrain baby stroller using an axle assembly that allows the rear wheels to be easily and quickly mounted and removed from the stroller frame without tools. The axle assembly has each rear wheel rotatably mounted on an outward end portion of a stub axle. A tubular rear axle defines a cylindrical interior chamber with an outward end opening sized to slidably receive the stub axle inward end portion therethrough for positioning of the stub axle inward portion coaxially within the interior chamber. When so positioned, a circumferential groove of the stub axle inward end portion is positioned within the interior chamber. The tubular sidewall of the rear axle has an aperture positioned axially inward from the interior chamber outward opening and at a location to coincide with the circumferential groove. A lock pin is carried by a strip spring and is movably disposed in the sidewall aperture for selective movement between an engagement position and a disengagement position.
    Type: Grant
    Filed: September 15, 1993
    Date of Patent: December 19, 1995
    Assignee: Racing Strollers, Inc.
    Inventors: Philip A. Baechler, Matthew Eichenberger, William J. Setter, Bruce A. Sully
  • Patent number: 5468006
    Abstract: A golf cart for transporting a golfer and golf clubs about a golf course. The inventive device includes a manually powered cycle having a steerable front wheel and a pair of rear wheels. A golf bag holding assembly is secured to the cycle between the rear wheel for supporting and securing a golf bag. A drink holder and writing pad are also secured to the cycle for holding a beverage and a golf scorecard, respectively.
    Type: Grant
    Filed: September 28, 1994
    Date of Patent: November 21, 1995
    Inventor: Robert J. Delserro
  • Patent number: 5468009
    Abstract: A collapsible jogging infant stroller that has a contractible lower frame portion having a rear end supporting two wheels, an intermediate portion and a front fork end supporting a front wheel. A contractible upper frame portion has a lower end pivotally attached to the lower frame portion and an upwardly and rearwardly extending intermediate seat portion supporting a flexible infant seat holder and an upper handle end. A stabilizer strut is connected to the lower frame portion and the upper frame portion to secure the frame portions together for safe and smooth carrying of an infant. A releasable locking means secures the stroller in its upright erect position for use, and when released, permits contraction of the upper and lower frame portions inwardly upon themselves as to move the stroller to a collapsed condition for transportation and storage.
    Type: Grant
    Filed: July 6, 1994
    Date of Patent: November 21, 1995
    Assignee: TRI Industries, Inc.
    Inventors: David Eyman, Thomas J. Schmidlin
  • Patent number: 5460399
    Abstract: An all-terrain stroller having a pair of rear wheels, each having a receiver fixedly attached thereto for rotation therewith. The receiver has a plurality of circumferentially distributed receiver openings which open inward toward the opposite rear wheel. A pair of brake rods is movably supported by the rear axle of the stroller for lateral movement of each toward and away from one of the receivers under the urging of a coil spring. A foot pedal actuator is rotatable between brake engaged and disengaged positions. The foot pedal carries a cam which moves the brake rods toward and into one of the receiver openings of the corresponding receiver when the brake pedal is rotated to engaged position to lock the rear wheels against rotational movement. The cam permits withdrawal of the brake rods from the receiver openings when the foot pedal is rotated to the disengaged position. The foot pedal is provided with stops to limit rotation of the foot pedal beyond the engaged and disengaged positions.
    Type: Grant
    Filed: September 15, 1993
    Date of Patent: October 24, 1995
    Assignee: Racing Strollers, Inc.
    Inventors: Philip A. Baechler, Timothy O. Armstrong
  • Patent number: 5375861
    Abstract: An improved stroller allows a runner to bring a baby along while running. The improvement comprises an elongate connector which flexes near each end and is rigid in the middle. One end of the connector is attached to the stroller and the other to the user, thus eliminating the need for the runner to use his or her hands to control the stroller. This allows the runner to freely swing his or her arms in a natural running motion.
    Type: Grant
    Filed: March 30, 1993
    Date of Patent: December 27, 1994
    Inventor: Henry Gifford
  • Patent number: 5356171
    Abstract: A collapsible jogging infant stroller that has a contractible lower frame portion having a rear end supporting two wheels, an intermediate portion and a front fork end supporting a front wheel. A contractible upper frame portion has a lower end pivotally attached to the lower frame portion and an upwardly and rearwardly extending intermediate seat portion supporting a flexible infant seat holder and an upper handle end. A stabilizer strut is connected to the lower frame portion and the upper frame portion to secure the frame portions together for safe and smooth carrying of an infant. A releasable locking means secures the stroller in its upright erect position for use, and when released, permits contraction of the upper and lower frame portions inwardly upon themselves as to move the stroller to a collapsed condition for transportation and storage.
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: October 18, 1994
    Assignee: TRI Industries, Inc.
    Inventors: Thomas J. Schmidlin, David Eyman
  • Patent number: 5351976
    Abstract: A three-wheeled sports equipment cart has a plurality of horizontal support surfaces mounted in tiers, Compartments mounted on or recessed in the frame are of a size and shape suitable to hold standard items of equipment for sports events.
    Type: Grant
    Filed: March 8, 1993
    Date of Patent: October 4, 1994
    Inventor: Joe R. Penson
  • Patent number: 5344171
    Abstract: A multi-purpose sports vehicle for the carriage of children which can readily be converted between a three wheeled stroller which is pushed by a person jogging or running to a two wheeled trailer for convenient towing behind a bicycle or the like. The wheels and seat are mounted on a light weight tubular frame. In a third configuration the wheels are removed and the vehicle can be used as a sled, or "pulk", to be pulled by a dog or a skier.
    Type: Grant
    Filed: January 4, 1993
    Date of Patent: September 6, 1994
    Inventor: Timothy Garforth-Bles
  • Patent number: 5328193
    Abstract: A scooting and coasting golf cart tricycle includes a frame having a main portion and a front portion rotatably mounted to the main portion, a center front wheel rotatably mounted to the front frame portion and a pair of right and left back wheels mounted to opposite rear sides of the main frame portion for rotation about a horizontal axis, a pair of right and left handlebars are connected to the front frame portion for steering the front wheel, and a platform supported by the main frame portion spaced below the horizontal rotational axis of the back wheels. The main frame portion includes a pair of right and left inverted U-shaped back forks rotatably mounting the right and left back wheels and a pair of spaced horizontal right and left support members. The platform is supported upon and between the spaced right and left support members.
    Type: Grant
    Filed: December 16, 1992
    Date of Patent: July 12, 1994
    Inventor: James A. Shiew
  • Patent number: 5303941
    Abstract: A mobile tripod support device for stable and secure engagement of a tripod for video cameras and auxiliary equipment. The device includes a triangular base component having ground-engaging wheels and tripod leg supports. A lidded storage compartment is disposed in part within the base component and provides for storage of auxiliary equipment and supplies. A storage battery is disposed in the storage compartment and is electrically connected to outlets affixed to a forward wall of the storage compartment.The tripod support device can be easily maneuvered into close spaces and the self-contained electricity power source eliminates the inconvenience of extensions cords and a remote power source.
    Type: Grant
    Filed: December 16, 1991
    Date of Patent: April 19, 1994
    Assignee: Dream Jeans Productions, Inc.
    Inventors: Ralph A. Volper, Joseph Guarino
  • Patent number: 5297808
    Abstract: The sidecar/stroller (200) includes a first wheel support assembly (222) which is movable between two positions. When the wheel support assembly (222) is in its first position, the apparatus is usable as a sidecar for bicycles, with upper and lower connections extending between the bicycle and the sidecar/stroller (200). When the wheel support assembly (222) is in its second position, forward of its first position, a rear wheel assembly (278) is secured to the sidecar/stroller and the apparatus is then useful as a stroller.
    Type: Grant
    Filed: March 13, 1992
    Date of Patent: March 29, 1994
    Inventor: Terence R. Ellard
  • Patent number: 5265912
    Abstract: A train apparatus includes a locomotive housing arranged for manual propulsion and for selective coupling to one of a first, second, and third cart assembly, wherein the first cart assembly includes amusement devices for motor skills, the second cart assembly includes various components relative to a simulation health emergency vehicle, and wherein the third cart assembly includes components relative to a kitchen assembly, and wherein the locomotive housing includes various selective bell, whistle, and audible signals operative relative to a passenger cockpit slot.
    Type: Grant
    Filed: October 19, 1992
    Date of Patent: November 30, 1993
    Inventor: Jeffrey A. Natividad
  • Patent number: 5263730
    Abstract: A stroller arrangement includes an elongate planar platform, having first and second seat members arranged in an aligned relationship relative to one another, with a first seat positioned forwardly of a rearward most seat mounted to the platform structure. The arrangement is directed to include a surrounding framework relative to the seat structure, having a rearwardly projecting handle, with rear wheels of a first diameter at a rear distal end of the platform, with a forward pivotally mounted wheel at a forwardmost end of the platform and frame assembly for pivotal mounting relative to the framework, with the forward wheel of a second diameter less than a first diameter of the rear wheels permitting ease of maneuverability of the organization in use.
    Type: Grant
    Filed: February 12, 1993
    Date of Patent: November 23, 1993
    Inventors: Douglas R. Roach, Louise A. Roach
  • Patent number: 5248158
    Abstract: The sidecar (12) includes a sidecar frame assembly (14) which is joined by two connecting assembles (76, 77), one near the lower end of the sidecar frame assembly (10) and one near the upper end thereof, such that there is defined a parallelogram-like structural arrangement. Swivel connections are provided at each connection point, so that the sidecar (12) is free to follow the action of the bicycle (10).
    Type: Grant
    Filed: July 18, 1991
    Date of Patent: September 28, 1993
    Inventor: Terence R. Ellard
  • Patent number: 5234307
    Abstract: Three-wheeled motorcycle dolly adapted for use in conjunction with roll-back tow truck has wide wheel base and low elevation decking. Rigid eyes are provided along frame for strapping motorcycle in upright position to dolly. Convex wheel stop rigidly attached to front of dolly provides permanent chocking for forward wheel of motorcycle. On-loading and off-loading of motorcycle are accomplished by single person with aid of detachable ramp, and inclined push rails on sides of dolly.
    Type: Grant
    Filed: February 7, 1992
    Date of Patent: August 10, 1993
    Inventor: Gerald W. Scott
  • Patent number: 5224720
    Abstract: A multi-purposed stroller includes a chair having a cover for shielding the same from sunshine and rain. The chair has a first and second recess respectively extending from a bottom and a front of the chair. A frame fixedly attached to the chair adjacent to its bottom has two ends carrying detachably a pair of rear wheels. The chair also has a pair of first toothed wheels respectively fixed on both sides of the chair adjacent to its top portion and a foot rest extending from the front and having a third recess therethrough and in communication with the second recess. A forked frame that includes two arms carrying a second wheel therebetween is inserted detachably into the second and third recesses. An inverted U-shaped frame is disposed on both sides of the chair that includes two arms, each with a second toothed wheel adapted to be meshed with the first toothed wheel such that the position of the inverted U-shaped frame can be altered relative to the back portion of the chair.
    Type: Grant
    Filed: April 21, 1992
    Date of Patent: July 6, 1993
    Inventors: Natural Chaw, Herng-Der Hwang
  • Patent number: 5188389
    Abstract: An all-terrain baby stroller using an axle assembly that permits the stroller frame to be collapsible. The axle assembly has a coupler at each end of a tubular axle. Each coupler assembly employs two coupler members, one connected to an upright frame member and the tubular axle, and the other one connected to a horizontal frame member. The couplers are rotatably connected to each other by a hub member. A portion of one coupler rotatably fits within the other coupler, and the hub member extends coaxially through both couplers and allows the one coupler to rotate about it. A stub axle carrying one of the rear wheels is removably received within the hub member. A locking pin is inserted into a hole formed through the stub axle, hub member, an inward one of the couplers, and the tubular axle to releasably retain the stub axle in place. A pair of upper frame members is pivotally connected to the upright frame members and removably connected to the horizontal frame members to permit folding of the frame.
    Type: Grant
    Filed: April 6, 1992
    Date of Patent: February 23, 1993
    Assignee: Racing Strollers Inc.
    Inventors: Philip A. Baechler, Timothy O. Armstrong
  • Patent number: 5176395
    Abstract: A multi-purpose sports vehicle for the carriage of children which can readily be converted between a wheeled stroller which is pushed by a person jogging or running to a wheeled trailer for convenient towing behind a bicycle or the like. In a third configuration, the wheels are removed and the vehicle can be used as a sled, or "pulk", to be pulled by a dog or a skier. The ready conversion between uses is particularly convenient and economic to the year round sports person.
    Type: Grant
    Filed: October 22, 1991
    Date of Patent: January 5, 1993
    Inventor: Timothy Garforth-Bles
  • Patent number: 5149114
    Abstract: A nestable cargo cart 10 suitable for carrying a plurality of cargo items is disclosed. The cart includes a lower frame 11 disposed about a longitudinal axis having longitudinally spaced forward and aft ends 11a and 11b respectively, wheels operatively connected to the lower frame 11, aft upright members 20a and 20b operatively connected to the lower frame 11 adjacent to the aft end 11b and rising generally vertically upward in the first vertical orientation, forward upright members 15a and 15b operatively connected to the lower frame adjacent to the forward end 11a and rising generally vertically upward in the second vertical orientation, and first and second cargo retainers 33a and 33b operatively connected to the aft upright members 20a and 20b and disposed generally inward.
    Type: Grant
    Filed: June 25, 1991
    Date of Patent: September 22, 1992
    Assignee: Smarte Carte Inc.
    Inventors: Mark S. Lewandowski, David M. Gessner, Robert C. Anthony
  • Patent number: 5123797
    Abstract: A transport carriage for the operating table platform of an operatng table with a liftable operating table platform, with at least two transport rolls of the transport carriage being supported on their axes for slidable movement in the axial direction.
    Type: Grant
    Filed: July 12, 1990
    Date of Patent: June 23, 1992
    Assignee: Stierlen-Maquet AG
    Inventors: Eberhard Schnelle, Matthias Dornauer
  • Patent number: 5123670
    Abstract: A stroller has a base frame which includes a front fork end connected to a front wheel and a rear end connected to two rear wheels. An elongated U-shaped tube member has its lower ends detachably connected to two sides of the base frame. A pair of rear support rods are pivoted to both the base frame and the U-shaped tube member. The stroller can be folded when the U-shaped tube member is detached from the base frame. The rear wheels can be detached from the base frame for convenient storage.
    Type: Grant
    Filed: June 22, 1990
    Date of Patent: June 23, 1992
    Inventor: Franys Chen
  • Patent number: 5101920
    Abstract: A personal mobility vehicle including rear and front frame sections which are quickly and easily engageable and disconnectable one to another. The rear frame section has a pair of coaxial rear spaced wheels and a pair of locator pins laterally extending preferably from each side margin adjacent each forward corner of the rear frame section. These locator pins engage with a locking bar rearwardly extending from and adjacent each rear corner of said front frame section. Each bar has a notch formed into its lower and upper margins adapted to engage the locator pins in a pivotal motion to guide the front and rear frame sections into abutting generally coplaner assembled relationship, thus preventing fore and aft and vertical movement therebetween. A latch-type connector preferably centrally positioned releasibly secures this coplaner relationship during use of the vehicle.
    Type: Grant
    Filed: October 22, 1990
    Date of Patent: April 7, 1992
    Assignee: Alpha Mobility, Inc.
    Inventor: Gordon L. Peterson
  • Patent number: 5088751
    Abstract: A lawn or garden cart is disclosed comprising a circular flanged frame providing support and retainment of a separable receptacle such as a bucket or tub, used for the purposes of gardening and lawn care. The cart's simplicity of construction and ease of use allow a user to operate and conveniently store the cart.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: February 18, 1992
    Inventor: Jerry A. Zint
  • Patent number: 5040812
    Abstract: This invention relates to an inclinable vehicle having three or more wheels. The invention provides a stabilizer system for the vehicle so that the stationary vehicle does not fall. The vehicle comprises a primary part including two wheels (1a, 1b) and a distortable suspension structure (2) connecting the wheels, and a structural member (4) mounted on a chassis member to tilt with the suspension structure. The tilting rotates an arm (5) with a multiplication ratio, and a roller on the arm (5) runs on a cross-member (19). The secondary part (6) of the vehicle slides on the structural member (4) and is carried by the cross-member (19) so that rotation of the arm (5) on tilting of the vehicle lifts the secondary part and raises the overall center of gravity of the vehicle. In a variant, the rise of the center of gravity is obtained by rotation of the secondary part of the vehicle. A clutch may be provided to disengage the stabilizer while the vehicle is moving.
    Type: Grant
    Filed: January 8, 1990
    Date of Patent: August 20, 1991
    Inventor: Pierre Patin
  • Patent number: 5031926
    Abstract: An apparatus for utilizing a wheelbarrow as a garden tractor, wherein the organization includes an elongate frame rail rotatably mounting a wheel at each end thereof. An elongate tongue is orthogonally mounted to the frame member utilizing removable pins, and wherein the frame member is secured to or adjacent "U" shaped frame supports of the associated wheelbarrow, wherein the tongue is provided with an aperture at a remote terminal end thereof for securement to a coupling hitch of an associated tractor vehicle.
    Type: Grant
    Filed: March 15, 1990
    Date of Patent: July 16, 1991
    Inventor: David D. Wannamaker
  • Patent number: 5029891
    Abstract: A lightweight infant stroller is provided for carrying an infant while walking or while walking, running or jogging at a faster than walking pace. The stroller includes three large diameter wheels arranged in a tricycle configuration, a lightweight foldable frame to which the wheels are attached and an infant holder made from a flexible material supported by the frame. The frame includes pivotally connected upper portion and a lower portions, whereby the portions may be folded against one another so the stroller occupies a minimum space during transport or storage. The rear wheels are removably attached to the frame; they may be removed completely for storage and, for use, the distance between the rear wheels may be selectively varied to enhance stability.
    Type: Grant
    Filed: April 11, 1990
    Date of Patent: July 9, 1991
    Assignee: Tri Industries, Inc.
    Inventor: Richard J. Jacobs
  • Patent number: 4984645
    Abstract: A vehicle comprises a main frame, a pair of front wheels and at least a rear wheel operably associated with the frame for engagement with the ground, a steering mechanism, a seat associated with the frame for an operator, an engine including a drive shaft, a device for mounting the engine to the main frame, and a torque converter operably associated with the drive shaft and the rear wheel. The mounting device has a first position whereby the drive shaft is in driving engagement with the torque converter and a second position whereby the drive shaft is in disengagement from the torque converter. The mounting device includes a brake mechanism for stopping the vehicle and having operative and non-operative positions such that when the brake mechanism is in the non-operative position, the drive shaft is in the first position and when the brake mechanism is in the operative position, the drive shaft is in the second position.
    Type: Grant
    Filed: September 21, 1989
    Date of Patent: January 15, 1991
    Inventor: John A. White, Jr.
  • Patent number: 4974863
    Abstract: The device comprises a secondary part (II) mounted rotatable upon the primary part (I), a suspension system with a parallelogram, comprising two lateral vertical rods (3a, 3b) parallel to median plane (P1 ) and two parallel equalizers (2a, 2b) articulated on the primary part (I), and a rotation-multiplying system comprising a cross-bar (8) and two arms (10a, 10b) mounted upon both lateral rods (3a, 3b), each of them finding a support upon the end of the controlling cross-bar (8) opposite to the corresponding lateral rod (3a, 3b).According to the invention, each transversal arm (10a, 10b) is subtituted by a sliding arm or consol (11a, 11b) linked to the corresponding lateral rod (3a, 3b,) by a sliding linkage (13a, 13b) perpendicularly to said rod, said sliding linkage comprising means (12, 18) allowing selective control of locking or unlocking of the sliding arm in relation with the orientations of median planes (P1, P2) of both parts of the vehicle in relation with the apparent vertical.
    Type: Grant
    Filed: November 15, 1989
    Date of Patent: December 4, 1990
    Inventor: Pierre Patin
  • Patent number: 4921263
    Abstract: This invention relates to an inclinable vehicle having three or more wheels. The invention provides a stabilizer system for the vehicle so that the stationary vehicle does not fall. The vehicle comprises a primary part including two wheels (1a, 1b) and a distortable suspension structure (2) connecting the wheels, and a structural member (4) mounted on a chassis member to tilt with the suspension structure. The tilting rotates an arm (5) with a multiplication ratio, and a roller on the arm (5) runs on a cross-member (19). The secondary part (6) of the vehicle slides on the structural member (4) and is carried by the cross-member (19) so that rotation of the arm (5) on tilting of the vehicle lifts the secondary part and raises the overall center of gravity of the vehicle. In a varient, the rise of the center of gravity is obtained by rotation of the secondary part of the vehicle. A clutch may be provided to disengage the stabilizer while the vehicle is moving.
    Type: Grant
    Filed: June 22, 1987
    Date of Patent: May 1, 1990
    Inventor: Pierre Patin
  • Patent number: 4917396
    Abstract: A tricycle includes a frame mounting a single large diameter rear wheel and a pair of small diameter front wheels. A pedal crank mechanism is connected through a chain and sprocket to drive the single rear wheel. The front wheels are mounted on front fork members disposed at opposite ends of a transverse steering bar. A perpendicular attached steering rod extends through a head tube on the tricycle frame and connects with a handle bar having an elongated central portion extending parallel with the transverse steering bar. A rectangular basket is disposed forwardly of the steering rod and includes a pair of spaced parallel vertically extending corner frame members secured between the central handle bar portion and the transverse steering bar. The tricycle provides a stable and efficient vehicle which may be utilized by individuals for shopping and exercise purposes.
    Type: Grant
    Filed: March 22, 1989
    Date of Patent: April 17, 1990
    Inventors: Sabino Meneses, Irene Meneses
  • Patent number: 4909538
    Abstract: A vehicle for sporting use comprises an articulated frame supporting three or more ground-engaging wheels at least one of which is steerable by means of a suitable steering control member, and a support platform for the user; all the ground-engaging wheels can be turned about respective axes lying generally parallel to the longitudinal central axis of the vehicle and orthogonal to the axis of rotation of the wheels defined by their axles whereby to displace the center of gravity of the vehicle for cornering.
    Type: Grant
    Filed: April 1, 1988
    Date of Patent: March 20, 1990
    Inventor: Aubrey Langton
  • Patent number: 4902027
    Abstract: A dolly having large surface bearing area wheels has a frame upon which a wheeled device with wheels having insufficient surface bearing area for the terrain desired to be traversed can be supported. The dolly has a handle for propelling it. The structure may be built with provision for folding it to a more compact form.
    Type: Grant
    Filed: July 21, 1988
    Date of Patent: February 20, 1990
    Inventor: Billie J. Skelly
  • Patent number: 4887826
    Abstract: A lightweight foldable wheelchair is provided which comprises a seat having a base and a back hingedly attached to the base, the back being foldable to overlie the seat base; a pair of large wheels each demountably attached to the end of an axle at the bottom rear of the seat base and rearward of the center of gravity of the chair; a first strut having its rearward end hingedly mounted to the underside forward portion of the seat base of the seat; and a second strut having its rearward end hingedly mounted to the underside of the seat base of the seat rearwardly of the first strut and forward of the wheel axle, the forward ends of both struts abutting below and forward of the seat and securing a demountable caster wheel and hingedly mounted footrest, and the struts being foldable to underlie the seat. The wheelchair can therefore be folded into a compact configuration when the wheels are demounted.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: December 19, 1989
    Inventor: Richard D. Kantner
  • Patent number: 4886478
    Abstract: The sail toy land vehicle includes a generally rod-like elongated frame or central body, having a raised forward portion, an elongated rigid rear wheel axle structure includes a pair of rear outrigger wheels to help support the vehicle rollably along the ground. An aerodynamic upright sail structure has a sail positioned such that its center of gravity is disposed approximately over the rear axle structure of the vehicle, and positioned in a rearwardly inclined manner.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: December 12, 1989
    Inventor: Daniel R. Jones
  • Patent number: 4878554
    Abstract: A motorized cart for the transportation of at least one mail bag includes a box-like frame having a plurality of hooks spaced along its top surface to which may be attached one or more mail bags. A pair of wheels are fixedly mounted to an axle disposed along the bottom surface of the frame. A third wheel is attached to the bottom surface of the frame to provide additional locomotive stability. To obviate manual transportation of the cart, the frame houses a motor which drives the rotation of the pair of wheels, a battery which supplies an initial electrical current to the motor, and a starter/generator which re-circulates electrical current to the motor. The revolution speed of the motor is controlled with a throttle actuated by twisting the handle mounted to the frame. A centrifugal clutch engages the motor and the axle once the motor attains a certain threshold revolution speed.
    Type: Grant
    Filed: August 31, 1987
    Date of Patent: November 7, 1989
    Inventor: Donald D. Dion
  • Patent number: 4767128
    Abstract: An improved wheelbarrow construction (10) comprising: a receptacle unit (11); a forward wheel assembly (12); a main load support unit (13) having adjustable handle means (14); a rear wheel trailer unit (15) operatively connected to the main load support unit (13); and an automatic brake unit (16) and brake override means (17) interposed between said main load support unit (13) and said rear wheel trailer unit (15).
    Type: Grant
    Filed: July 27, 1987
    Date of Patent: August 30, 1988
    Assignee: T. Entrepreneur, Inc.
    Inventor: John J. Terhune
  • Patent number: 4613151
    Abstract: This invention relates to an improved wheelchair adapted to provide enhanced mobility for the occupant together with making ground level activities available. The wheelchair comprises a main frame together with an extension frame telescopically secured to said main frame. A seat is operably secured to the extension frame so that when the extension frame is moved away from the main frame, the seat is lowered, and when said extension frame is brought back to said main frame, the seat is raised. Means are provided for further enhancing stability in the form of a mechanism to selectively move the drive wheels apart for wider wheel tracking. A rear wheel castered to the extension frame is provided with a selectively operable torsion limiter.
    Type: Grant
    Filed: February 16, 1984
    Date of Patent: September 23, 1986
    Inventor: William J. Kielczewski
  • Patent number: 4573546
    Abstract: A three-wheeled motor vehicle has a vehicle body on which two front wheels and a single rear wheel are rotatably mounted. The vehicle body includes a front portion covering the two front wheels and having a wide and flat shape, and a rear portion having a driver's compartment and covering the rear wheel, the rear portion being narrower than the front portion and progressively higher in a rearward direction of the vehicle body. The front and rear portions of the vehicle body include slanted continuous side surfaces tapered toward a longitudinal axis of the vehicle body in the rearward direction thereof.
    Type: Grant
    Filed: April 30, 1984
    Date of Patent: March 4, 1986
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Shoichiro Irimajiri, Katsusuke Komuro, Kunihiko Aikawa
  • Patent number: 4572531
    Abstract: A dolly for a snow plow blade is in a generally T-shaped configuration wherein the base of the T is easily dismounted for storage of the dolly. The T-shaped dolly has a wheel secured to each end of the cross piece and the base piece.
    Type: Grant
    Filed: June 15, 1984
    Date of Patent: February 25, 1986
    Inventor: Thomas L. Elia
  • Patent number: 4526390
    Abstract: The vehicle has a three wheel, triangular wheelbase and a pyramid-shaped frame formed of four tubular side members and an inclined tubular steering fork supported rotatively by the side members adjacent its upper and lower ends. Handle bars located generally above the rear wheels rotate the steering fork to turn a front wheel located adjacent the front corner of the frame for steering the vehicle. Two spaced apart rear wheels are mounted for rotation about a common axis adjacent the rear corners of the frame. A platform for supporting a rider is mounted by the frame between the rear wheels, and forms a support surface so constructed and arranged with respect to the handle bars and rear wheels that the vehicle may be tilted onto two of its three wheels at a time, and then may be balanced in that position so as to perform a "wheelie" or similar maneuver, merely by concentrating or shifting the weight of the rider on the support surface and applying fore, aft or lateral balancing forces to the handle bars.
    Type: Grant
    Filed: March 21, 1983
    Date of Patent: July 2, 1985
    Inventor: Arthur M. Skolnik
  • Patent number: 4441727
    Abstract: A load carrying apparatus with a movable triangular shaped carriage. The carriage has a cross-member connected to two sides of the triangular carriage. Two load carrying members are provided on the carriage with one member being connected at two points. The first point is located on one side of the triangular shaped carriage and the second point is located on the cross member. The two load carrying members are connected and a load is adapted to be supported by the second load carrying member. The disclosed load is a vehicle cleaning apparatus.
    Type: Grant
    Filed: October 13, 1981
    Date of Patent: April 10, 1984
    Inventor: John W. Durcan