Wheelbarrow Patents (Class 280/653)
-
Patent number: 6446989Abstract: A wheelbarrow includes a load carrying bin, a frame structure, a number of wheels, and a closed loop pivotal handle. The handle is attached near the rear of the wheelbarrow on a pivoting axis so that the user may adjust the height of the handle. The handle may be attached with two threaded pins having knobs at one end so a user may fix the handle at one particular height, may leave the handle entirely adjustable, or may remove the handle entirely for convenient storage of the device. The wheels are placed to provide complete support for the load and may include vertical swivel axes to make moving the wheelbarrow easier.Type: GrantFiled: November 13, 2000Date of Patent: September 10, 2002Inventor: Franklin Sanchez Intengan
-
Patent number: 6390496Abstract: In a wheel barrow having a load carrying container disposed between a rotatable wheel and a handle, an adapter apparatus is disclosed for assisting transportation of the wheelbarrow. The adapter apparatus includes a frame having a first and a second end and an axle having a first and a second side. The axle extends through the frame and the rotatable wheel such that the rotatable wheel rotates about the axle. Additionally, the axle pivotally supports the wheel barrow such that pivotal movement of the wheel barrow about the axle and relative to the frame is permitted. A rotatable device is secured to the frame so that the container is disposed between the axle and the rotatable device. The arrangement is such that in a first mode of operation of the apparatus, the wheel barrow is supported by the frame and is transported on the rotatable wheel and the rotatable device for transportation of the load disposed within the container.Type: GrantFiled: October 17, 2001Date of Patent: May 21, 2002Inventor: Todd R Eicher
-
Patent number: 6328331Abstract: A heavy duty collapsible wheelbarrow having a frame (including, for example, a wheel and a pair of handles), and a container (sometimes referred to in the prior art as a tray or bucket), the container being securable to the frame in a “ready for use” position, and being releasable from this “ready for use” position to enable the wheelbarrow to be collapsed, the means for securing the container to the frame including an “over-center” mechanism.Type: GrantFiled: September 30, 1999Date of Patent: December 11, 2001Inventor: Kevin P. McEnteggart
-
Patent number: 6220622Abstract: A new Wheelbarrow Rear Wheel System for improving the ease of use of a wheelbarrow. The inventive device includes a frame assembly secured to the underside of the tray of a wheelbarrow adjacent the rear end of the tray and a wheel assembly coupled to the frame assembly. The wheel assembly includes a pair of spaced wheels and is adjustable relative to the frame assembly so as to enable a user thereof to raise and lower the rearward portion of the wheelbarrow.Type: GrantFiled: March 25, 1999Date of Patent: April 24, 2001Inventor: Guadalupe Garcia
-
Patent number: 6213532Abstract: A sidewall extender for a wheelbarrow for increasing the carrying capacity of the wheelbarrow. The sidewall extender for a wheelbarrow includes a flexible sheet of material having a length such that the sheet of material fastens to the side-walls and encloses about the bin and extends the side-walls to a height of approximately 3 feet with the sheet of material being made of canvas or some other type of vinyl; and further includes a plurality of fastening members securely attached along the first and second end edges and bottom edge of the sheet of material and also along top edges of the side-walls of the wheelbarrow for fastening the sheet of material to the wheelbarrow. The first and second end edges are fastened together when the sheet of material is secured to the wheelbarrow.Type: GrantFiled: January 7, 2000Date of Patent: April 10, 2001Inventor: La Mar H. Dunyon
-
Patent number: 6203033Abstract: A wheelbarrow for transporting four circular buckets, includes a U-shaped bucket-support platform extending rearwardly from the wheelbarrow front wheel, and two bucket-confinement rings located above the platform. The rings are supported by a U-shaped support tube near the front wheel, and two vertical tubes on the wheelbarrow centerline. The buckets are supported near the wheelbarrow centerline to minimize any tendency of the wheelbarrow to tip over.Type: GrantFiled: March 18, 1999Date of Patent: March 20, 2001Inventor: Bryce Knoll
-
Patent number: 6193265Abstract: A wheelbarrow includes a container, a pair of handles rigidly connected to the container, and a support system including at least one wheel assembly for supporting the container. The container has a longitudinal-vertical plane of symmetry. Each of the handles extends in an extensional direction angled rearwardly outwards such that, in a horizontal projection, the extensional direction forms an angle of between about 65° and about 85° with the plane of symmetry.Type: GrantFiled: February 2, 1998Date of Patent: February 27, 2001Assignee: Zag Industries Ltd.Inventor: Zvi Yemini
-
Patent number: 6186523Abstract: A configurable horizontal dolly (10) is provided that allows an operator to move various sized objects. The configurable horizontal dolly comprises a wheel (12) rotatably coupled to a frame (14). Two handles (16) are coupled to frame (14), wherein at least one of the handles (16) is pivotally coupled to frame (14). The pivoting handle allows an operator to use configurable horizontal dolly (10) to move objects of various sizes. The configurable horizontal dolly (10) can have both handles (16) pivotally coupled to frame (14). A configurable horizontal dolly (10) is also provided that has a plurality of platforms (20) coupled to the handles (16) and operable to support an object from below while the handles (16) provide lateral support.Type: GrantFiled: May 12, 1998Date of Patent: February 13, 2001Inventor: Michael Aielli
-
Patent number: 6139029Abstract: A multipurpose two-wheeled cart whose wheels are removable from the body of the cart to leave a generally planar flat bottom, so that the cart can be used as a sled. Side extensions may be mounted to hold bulky loads. Removable handles are provided at both of the sloping ends of the body and are adjustable to keep grips at the same height from the ground when the wheels are removed. Either or both of the handles may be mounted and used, depending on whether terrain and load make it desirable for one person or two people to move the cart and its load. The handles, wheels, and side extensions all fit within the body to provide a compact unit for transport in a motor vehicle. Stiffeners on the bottom of the body may be used as runners.Type: GrantFiled: May 29, 1997Date of Patent: October 31, 2000Inventor: James H. Shaw
-
Patent number: 6065555Abstract: A power-assisted wheelbarrow applies an assisting function using an electric motor. Handle shafts connecting to the rear end portions of two handles are covered with grips which are allowed to move axially relative to the handle shafts. More than one steel balls are fitted between the handle shafts and the grips. At the sides of the grips or the handles, pushing force detecting sensors are disposed for detecting the axial movements of the grips relative to the handle shafts in accordance with the pushing forces applied to the grips. The operation of the electric motor is controlled on the basis of the detected values of the two pushing force detecting sensors. As a result, the assisting force by the electric motor can be effectively applied to the wheel of a manual-push type single-wheeled carrier so that manual labor can be reduced while minimizing the consumption of a battery.Type: GrantFiled: March 27, 1998Date of Patent: May 23, 2000Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Hitoshi Yuki, Yoshihisa Hirose
-
Patent number: 6053515Abstract: A carrier comprising a carrier box formed with a rectangular base plate with side edges and remote and near edges and with a plurality of plates including a remote end plate extending upwardly from the remote edge of the base plate at a right angle with respect thereto and having a generally rectangular configuration and with a near end plate and a hinge coupling the lower end of the near end plate to the near edge of the base plate and with a pair of side plates with a linear lower edge positioned adjacent the side edges of the base plate with parallel hinges coupled with respect thereto. A tubular frame assembly includes parallel sides having upper extents coupled by rivets to the lower surface of the base plate adjacent to the side edges and extending nearwardly thereof with a generally u-shaped extension extending nearwardly of the parallel sides. A pair of wheels are mounted for rotational movement about a common axis of rotation beneath the base plate adjacent to the remote end.Type: GrantFiled: December 31, 1998Date of Patent: April 25, 2000Inventor: Earnest Kelley
-
Patent number: 6017053Abstract: A folding wheelbarrow is adjustable between erected and folded positions and comprises a pair of handle members, a pair of leg members, a wheel and a collapsible container of flexible sheet material. Forward portions of the handle members are hingedly connected together to form a kicker portion when erected, and rear portions of the handle members are laterally spaced apart for gripping. Forward portions of the leg members are hingedly connected together and located above the forward portions of the handle members when the wheelbarrow is erected, and rear portions of the leg members provide spaced apart legs to support the wheelbarrow. Each leg member is hinged to an adjacent arm member for rotation about a respective main hinge axis. The wheel is mounted for rotation about a transversely extending axle which is hingedly and slidably connected to the forward portions of the handle members.Type: GrantFiled: October 8, 1996Date of Patent: January 25, 2000Assignee: FAB Developments Inc.Inventors: David Earl Leger, Mark Chesley McDonald, David Roberts
-
Patent number: 5924708Abstract: Conventional wheelbarrow are difficult to steer, particularly when fully loaded. The wheelbarrow of the present invention provides a simple solution to this problem. The wheelbarrow includes a pair of L-shaped axles carrying wheels (or skis for winter use) rotatably mounted in vertical sleeves on the frame of the wheelbarrow. A crossbar on the front end of a pair of handles carries a shaft rotatable in cylindrical bushings on the frame. A linkage connects the front end of the shaft to levers on the vertical arms of the axles, so that rotation of the handles results in rotation of the shaft and consequently rotation of the axles and wheels around the vertical axes of the vertical arms of the sleeves to steer the wheelbarrow.Type: GrantFiled: February 14, 1997Date of Patent: July 20, 1999Assignee: Les Aciers Robond Inc.Inventors: Gerard J. Bisaillon, Rolland Bisaillon
-
Patent number: 5915706Abstract: A wheelbarrow specially adapted for selective manual or machine deployment. The preferred embodiment comprises a wheelbarrow having a generally conventional tub hingedly secured to a frame with a latching means opposite. The tubular handles and tongue are slideably adjustable for mode with the handles also rotatively adjustable for ergonomics. The two wheel axle placement towards the center of gravity allows for lighter handle and tongue loads, enabling wheelbarrow conversion to trailer and vice versa easily even in the fully loaded condition. Two embodiments of the wheelbarrow with integrated trailering and dumping capabilities are disclosed, one having single and the other having double pivoting tub dump mechanisms.Type: GrantFiled: September 24, 1996Date of Patent: June 29, 1999Inventor: Keith A. Mosley
-
Patent number: 5908202Abstract: A folding wheelbarrow is adjustable between erected and folded positions and comprises a pair of handle members, a pair of leg members, a wheel and a collapsible container of flexible sheet material. Forward portions of the handle members are hingedly connected together to form a kicker portion when erected, and rear portions of the handle members are laterally spaced apart for gripping. Forward portions of the leg members are hingedly connected together and located above the forward portions of the handle members when the wheelbarrow is erected, and rear portions of the leg members provide spaced apart legs to support the wheelbarrow. Each leg member is hinged to an adjacent arm member for rotation about a respective main hinge axis. The wheel is mounted for rotation about a transversely extending axle which is hingedly and slidably connected to the forward portions of the handle members.Type: GrantFiled: July 18, 1997Date of Patent: June 1, 1999Assignee: Fab Developments Inc.Inventors: David Earl Leger, Mark Chesley McDonald, David Roberts
-
Patent number: 5878827Abstract: A motorized wheelbarrow comprising a frame having a pair of handles with each handle having a proximal and a distal end and a pair of downwardly depending support elements. A first wheel is secured to the distal ends of the pair of handles by a frame element and a rear set of wheels is secured to the proximal ends of the pair of handles by a frame element. A mounting element is secured to the frame for supporting a drive engine. A drive mechanism including a chain and a sprocket is operably linked to a toothed wheel and to the drive engine. The toothed wheel includes an internal brake drum and internal brake shoes. A centrifugal clutch for engagement with the drive mechanism is operably engaged to a throttle mechanism and to the drive engine, and a load bucket is mounted to the frame.Type: GrantFiled: February 26, 1998Date of Patent: March 9, 1999Assignee: Power Technology Unlimited, Inc.Inventor: Rick Dean Fox
-
Patent number: 5806878Abstract: A collapsible wheelbarrow has a wheel assembly. The wheel assembly has a collapsible rim and a tire mounted to the rim. The tire comprises a flexible woven fabric and an inner tube for expanding the tire. The wheel assembly rotatably mounts to an axle. A plurality of spaced apart handles extend from the axle and cargo are mounted between the handles for supporting cargo on the wheelbarrow.Type: GrantFiled: September 17, 1996Date of Patent: September 15, 1998Assignee: Double D Development Co. L.L.C.Inventors: David E. Mroczka, Edward J. Mroczka
-
Patent number: 5607174Abstract: A folding wheelbarrow which is durable and also easy to store. The legs fold up against the frame and the wheel is suspended below the frame. This construction allows the topside of the frame to rest flush against a wall for storage.Type: GrantFiled: May 17, 1995Date of Patent: March 4, 1997Inventor: Patrick Ambrogio
-
Patent number: 5489000Abstract: A motorized wheelbarrow comprises a pan for receiving a load to be transported by the barrow, at least a wheel arranged to bear on the ground and a motor arranged to rotate the wheel for moving the wheelbarrow over the ground. The motor is located under the pan and with its center of gravity in front of a vertical plane including the axle of rotation of the wheel as seen in the direction of movement in the transport position of the wheelbarrow.Type: GrantFiled: February 27, 1995Date of Patent: February 6, 1996Inventor: Lars Hillbohm
-
Patent number: 5372376Abstract: The invention provides a foldable wheelbarrow (10.1) which comprises a load bin (12), a wheel (14) for supporting the wheelbarrow, and a connecting structure (16) which connects the wheel (14) to the load bin (12), the connecting structure (16) being displaceable with respect to the load bin. The connecting structure (16) is preferably pivotally displaceable with respect to the load bin (12) and may comprise first (16.1) with second (16.2) components, the wheel (14) being mounted on the first component (16.1) with the second component (16.2) being connected to the first component (16.1) at a first pivot connection (18). The second component (16.2) may be connected to the bin (12) at a second pivot connection (20).Type: GrantFiled: October 13, 1993Date of Patent: December 13, 1994Inventor: Anthony P. Pharaoh
-
Patent number: 5242177Abstract: An attachment for a wheelbarrow includes a load support member pivotally secured to a frame of the wheelbarrow at a front end thereof and adapted to facilitate lifting and supporting of heavy or bulky items for transportation. The load support member is pivotally advanceable between a raised position and a lowered position such that, when the load support member is positioned in the lowered position, the load support member extends in front of the wheel of the wheelbarrow. The load support member is advanceable to the raised position when not in use.Type: GrantFiled: July 30, 1992Date of Patent: September 7, 1993Inventor: George H. Morris
-
Patent number: 5222757Abstract: A fold-up wheelbarrow comprises a wheel and two elongate frame members connected pivotally to the wheel by hinges. A pair of legs and a flexible, load-bearing body depend from the frame members. The load-bearing body is comprised of a plurality of sheet-like panels made of a flexible material such as canvas or plastic. The wheelbarrow is held open by locking bars that help to stabilize the frame members. When the wheelbarrow is in its open position, the frame members are biased away from each other.Type: GrantFiled: September 11, 1991Date of Patent: June 29, 1993Inventor: David J. Magyar
-
Patent number: 5106113Abstract: A wheel support structure for a cart, such as a wheelbarrow. The structure includes two separate wheel axis each carrying a wheel. Each wheel axis is mounted on a holding arm, which is pivotable 180 degrees about a vertical frame portion, whereby the pair of wheels can be shifted between inner and outer positions. Upper and lower plate members, forming bearing flange members, are fastened to the vertical frame portion and to a vertical stud portion of the holding arm, respectively, and are selectively securable to each other in order to lock the associated wheel in the respective inner or outer position.Type: GrantFiled: April 3, 1991Date of Patent: April 21, 1992Inventor: Giovanni Piacentini
-
Patent number: 5087061Abstract: A wheelbarrow which may be readily converted to a garden trailer is presented. The wheelbarrow comprises an upper pan for carrying materials. The upper pan is connected to lower non-parallel base rails which serve as the base and handles for the upper pan. Attached beneath the base rails are a pair of wheels. The wheels are seperated from the base rails by seperating plates and the pan is separated from the base rails by a wedge. The converging ends of the base rail have a dumping base plate attached. A mainframe tow bar is attached to the housing of the axle between the two wheels. When it is desired to convert the wheelbarrow to a trailer, a tow bar extender is easily fastened to the mainframe tow bar and the handles are folded back underneath the pan. In dumping material from the pan, the wheelbarrow may be easily turned on its base plate and the entire contents of the pan dumped. This dumping is facilitated by the separation of the pan and wheels from the base rail by the separating plates and wedge.Type: GrantFiled: December 3, 1990Date of Patent: February 11, 1992Inventor: Astor J. Wallace
-
Patent number: 5040807Abstract: A combined wheelbarrow and beach chair apparatus (10) comprising pivotally attached framework units (11) and (12) having a flexible cargo unit (14) suspended between them and a pivoted wheel assembly unit (13) attached to one of the framework units (11) and provided with members to vary the angular orientation of the wheel assembly unit (13) relative to the framework units (11) (12) and, a removeable support unit (15) which will change the apparatus (10) from a chaise lounge/wheelbarrow configuration to a chair configuration.Type: GrantFiled: March 15, 1990Date of Patent: August 20, 1991Inventor: David E. Snover
-
Patent number: 4781396Abstract: A collapsible wheelbarrow has two side sections each of which has a generally rectangular load-containing wall, the two walls being hinged together about their lower edges. A tube projects forwardly from each wall to serve as a wheel support, and rearwardly to serve as a handle. A triangular front wall is pivoted to the two walls, the front wall being in two parts which are hinged together. The wheelbarrow may be opened out for normal use, or may be folded so as to be substantially flat, for storage or transport.Type: GrantFiled: June 9, 1987Date of Patent: November 1, 1988Inventor: David H. King
-
Patent number: 4758010Abstract: A convertible wheelbarrow, which is an improvement of the garden type wheelbarrow, having a tray with connectors for quickly removing it from the frame which has a load carrying area behind, above and forward of the wheel.Type: GrantFiled: May 27, 1986Date of Patent: July 19, 1988Inventor: Howard C. Christie
-
Patent number: 4632420Abstract: A collapsible baby carriage having front leg bars rotatably supporting front wheels at their lower ends, rear leg bars rotatably supporting rear wheels at their lower ends, a transverse connector bar connecting the front and rear leg bars at their upper ends, embracing members secured at one end to the lower end of a handle bar for detachably embracing the rear leg bars when the carriage is unfolded, anchoring link bars connected at their respective ends to a central portion of each front leg bar and to a lower portion of each auxiliary bar, a spring-loaded lock bar for resiliently engaging and disengaging with anchoring edges on the anchoring link bars, an lock bar receiving member pivoted to at least one of said anchoring link bars and a manipulation mechanism for disengaging the lock bar from the anchoring edges of the anchoring link bars.Type: GrantFiled: January 23, 1985Date of Patent: December 30, 1986Assignee: Zojirushi Baby Co., Ltd.Inventor: Takeshi Miyagi
-
Patent number: 4471996Abstract: A load-carrying device comprises a frame adapted to support a load to be carried, and having front and rear end portions. A wheel is rotatably mounted to the frame and positioned at the front end portion for supporting same. The device of the invention further comprises elongated handle means pivotally connected to the rear end portion and frame support means connected to and displaceable with the handle means, the handle means being pivotally movable between a first position whereat the handle means extends rearwardly of the frame for carrying the load with the frame support means being disposed to support the rear end portion, and a second position whereat the frame support means is retracted from its supporting position. A releasable locking means is also provided for interlocking the handle means with the frame in the first position.Type: GrantFiled: September 14, 1982Date of Patent: September 18, 1984Inventor: Mario Primeau
-
Patent number: 4401313Abstract: A collapsible wheelbarrow having a wheel assembly, tubular members extending distally from each side of the wheel assembly, a container element affixed to the tubular members and having distinct side wall and bottom wall members, hinge elements affixed to certain side wall and bottom wall members so as to enable said side wall and bottom wall members to be folded, and/or removed, latch elements affixed to certain side wall and bottom wall members enabling said side wall and bottom wall members to be detachably affixed to one another, and rear support members.Type: GrantFiled: December 3, 1980Date of Patent: August 30, 1983Inventor: Leon G. Filas
-
Patent number: 4109933Abstract: A folding wheelbarrow can be constructed so as to utilize a wheelbarrow body which is adapted to be folded or manipulated from a normal position into a folded position. Such a body is attached to a wheel support serving to carry a normal wheel and handles. In order to achieve a satisfactory folding action each such body is constructed so as to have a bottom wall including at least two bottom panels, a front wall having at least two front wall panels and sides connected by the bottom wall panel and the front wall panel. A plurality of separate linkage hinges connect the bottom and front wall panels and the sides so as to permit Sarrus-type motion of the panels and the sides during manipulation of the body from a normal position into a folded position. A latch or latch-type structure is preferably used to connect at least two parts which pivot relative to one another during such folding so as to hold the body in its normal position.Type: GrantFiled: April 12, 1977Date of Patent: August 29, 1978Inventors: Edward D. O'Brian, William M. Plachy