Abstract: A hand truck for carrying luggage having two wheel holders slidably fastened to a base frame thereof at two opposite ends and locked in position by a respective lock pin. The base frame has a longitudinal through hole through two opposite ends thereof, and two series of pin holes longitudinally spaced near the two opposite ends and respectively perpendicularly communicated with the longitudinal through hole. Each wheel holder comprises a bearing plate provided with a wheel at the bottom, a mounting rod horizontally extended from the bearing plate at one side and slidably inserted into the longitudinal through hole on the base frame and releasably locked in position by a respective lock pin being inserted into either pin hole at either end of the base frame, the mounting rod having a longitudinal series of pin holes for alternatively connecting to either pin holes at either end of the base frame by the respective lock pin.

Abstract: A retractable trailer hitch receiver apparatus comprising a mounting frame formed of a pair of spaced, elongated, rigid and generally horizontal elements; a frame coupling mechanism for coupling the mounting frame beneath a vehicle; a rigid hitch receiver positionable between the elements of the frame and formed of a generally horizontal base leg and a cross leg extended upwards therefrom and with an end of the base leg adapted to be coupled to a trailer hitch; and a securement mechanism having one mode for coupling the base leg of the hitch receiver to the mounting frame for placing the hitch receiver in a retracted stowed configuration such that the base leg of the hitch receiver is generally aligned with the mounting frame and another mode for coupling the cross leg to the mounting frame for placing the hitch receiver in an extended operable configuration for receipt of a trailer hitch.

Abstract: A hand truck for transporting compressed air tanks. The hand truck has the capacity to carry one, two or three tanks at one time. During transport, the tanks are held in place by a plastic spring clip. The tank truck folds to a compact size to facilitate moving and storing. The tank truck may be fabricated from steel or aluminum. No tools are required to fold or unfold the tank truck.

Abstract: A carrying case assembly is provided with a case defining an enclosed interior, and a collapsible handle assembly disposed within the case. The handle assembly includes a push button which allows the handle to collapse within the case. Wheels are provided on the outside of the case so that, in conjunction with the extended handle, the case may be transported as if it were a wheeled cart.

Abstract: A folding device stroller includes a positioning seat securely mounted to an upper end of each of two front members and a retainer seat securely mounted to an associated end of a handle of the stroller, the associated end of the handle being pivotally mounted to the positioning seat. The positioning seat includes a transverse positioning ring formed on an upper end thereof and a spring-biased button partially received in the positioning ring. The retainer seat includes a cutout defined therein thereby forming a handgrip and a transverse bore defined in a lower end thereof through which the button is passable. The button is biased to a position partially received in the bore to retain the stroller in an extended position, and the stroller is foldable when the button is pressed inwardly to disengage from the bore.

Abstract: A device for moving stackable crates which have hand grip orifices and bottom weight bearing flanges such as milk crates, egg crates, bread crates, etc. The device comprises a lever, a handle, a stop, a hook and a roller all attached to the lever. The lever is non-linearly shaped to facilitate use by a right handed or left-handed person and allows the device user to move stacked crates over rough floor surfaces.

Abstract: A tandem stroller includes two side frames having a pivotal locking assembly for locking the side frames in an open configuration and for permitting the side frames to be folded in a lengthwise direction of the stroller, each side frame including a main side tube and a rear side tube pivotally connected to the main side tube at an intermediate portion thereof; a connecting frame for connecting the side frames together in parallel, spaced relation, the connecting frame including two lengthwise support rods pivotally connected to the main side tube and the rear side tube of each side frame and a first transverse connecting bar for connecting the lengthwise support rods together; a front seat formed at a front portion of the connecting frame, the front seat including a front seat bottom extending between the lengthwise support rods, and a front seat back pivotally connected to the lengthwise support rods; and a rear seat formed at a rear portion of the connecting frame, the rear seat being positioned substantial

Abstract: A cart can retainer for aiding in the movement of heavy loads by steadying them is disclosed. This device includes a flat clip welded together with a curved rod and is used in connection with devices such as a hand truck or garden cart. This device also may be adapted to use extention rods and elastic bands to further encircle and ease in transporting the load.

Abstract: The present invention is directed to a tray device for a wheelbarrow comprising a bottom surface, a front wall, rear wall and side walls forming an open top. The open top forming a trapezoid having an area greater than the area of the bottom surface, the side walls each forming a trapezium having all sides of unequal length and mounting supports for securing the device to a wheelbarrow when positioned between a pair of wheelbarrow shafts.

Abstract: A roller skate brake for a roller skate having at least two rolling wheels mounted in-line. Each rolling wheel has a circumferential surface and is rotatably mounted to the roller skate about a rolling wheel axle. The brake includes a braking wheel also having a circumferential surface. The braking wheel is rotatably mounted about the roller skate about a braking wheel axle approximately parallel the rolling wheel axle. The braking wheel is mounted to the roller skate so that the circumferential surface of the roller skate wheel can be brought into contact with the circumferential surface of the rolling wheel. The brake also includes a braking lever for braking the rotation of the braking wheel when in contact with the rolling wheel, thus braking the rolling wheel. The circumferential surface of the rolling wheel is generally convex and the circumferential surface of the braking wheel may be generally concave.

Abstract: An on demand vehicle drive system monitors vehicle performance and operating conditions and controls torque delivery to the vehicle wheels. The system includes a plurality of speed and position sensors, a transfer case having primary and secondary output shafts driving primary and secondary axles and a microcontroller. The sensors include a vehicle speed sensor, a pair of primary and secondary drive shaft speed sensors, and brake and driveline status sensors. The transfer case includes a modulating electromagnetic clutch controlled by the microcontroller which is incrementally engaged to transfer torque from the primary output shaft to the secondary output shaft. When the speed of either the front or the rear drive shafts overruns, i.e., exceeds, the speed of the other drive shaft by a predetermined value related to the vehicle speed, indicating that wheel slip is present, clutch current is incrementally increased to increase clutch engagement and torque transfer to the secondary axle.

Abstract: A skate with aligned wheels, comprising a support for an item of footgear from which a frame protrudes downward. The ends of respective wheel supporting trucks are pivoted to the frame. The peculiarity of the invention resides in the fact that two movable sliders are interposed between the trucks and the respective supports. Advantageously, at least one rubber pad is interposed between each truck and support. The skate allows the user to preset the degree of shock-absorption during skating by varying the position of the slider.

Abstract: A hand pallet truck of the type comprising a head frame and a pair of forks projecting forwardly therefrom is modified by providing a hinge portion of the forks which can fold upwardly from the operating position to a storage position latched to the frame. The folded truck can thus be readily be transported and stored so that it can be made available for use at different locations, for example by storage within the cab of a truck. The hinged forks include a stub fork portion at the frame projecting slightly outwardly from the frame for receiving a portion of the pallet. The link bar which operates the wheels of the fork is also hinged but can only pivot in the lowered position of the forks and frame. A locking arrangement locks the hinged forks in the operating position.

Abstract: A foldable bicycle including (a) a stem tube including a first section slidably mounted in a second section pivotally linked to a third section, a handle bar mounted on the first section of the stem tube, the third section of the stem tube rotatably mounted in a head tube and (b) a top tube comprising a first section pivotally linked to a second section, the first section of the top tube fixed to the head tube, the second section of the top tube fixed to a downtube and a seat tube wherein a seat post is slidably mounted.

Abstract: A new and improved stabilizer device for skiers having two skis, each of the two skis has an upper surface and a lower surface. Two front supports are secured to a corresponding upper surface of the two skis. Two back supports have a triangular support bracket theresecured. Each triangular support bracket is secured to a corresponding upper surface of the two skis. A U-shaped cross member has two convoluted end portions positioned to be secured to the two front supports and to the two back supports. Two brake handles, each of the two brake handles are secured to the U-shaped cross member. Two brake cables are secured to the corresponding brake handle and to the corresponding triangular support bracket of the back support. Two drag brakes are secured to the corresponding triangular support brackets and secured to the brake cables. Two spring mechanisms are secured to the triangular supports brackets and to the drag brakes.

Abstract: Disclosed is an in-line roller skate including an elongate base plate having a top side to which a boot is secured, and an underside that mounts four wheel assemblies, the front wheel assembly having a fixed orientation and the remaining assemblies each having a caster-like construction. Springs bias each of the caster-like assemblies in a straight-ahead orientation, and first and second near-vertically extending fixed brake surfaces are spaced on opposite sides of the rearwardmost wheel such that the wheel frictionally engages a brake surface whenever the wheel is substantiallly turned to one direction or the opposite direction.

Abstract: A wheeled luggage including a body portion formed with a recess at two corners, a L-shaped member mounted the bottom of the body portion, an axle disposed on the L-shaped member and mounted across the two corners, two wheel protectors each fitted in the recess of the body portion, two wheels each pivotally connected with an end of the axle, two sleeves each including a plug having a cylindrical portion enclosed with a plurality of clamping members having a hook portion at the lower end and an annular member having an inner diameter which is just equal to an outer diameter of a cylinder formed by the clamping members, the annular member being shorter than the clamping members in height, the plug being fitted on a top of the body portion, the annular member being put on to the clamping members of plug, two tubular members having a lower end vertically mounted on the L-shaped member and an upper end inserted between the cylindrical portion and the clamping members of the plug, and a handle having two pull rods e

Abstract: A double lead-pup trailer assembly for container transport has swivel bunks enabling the container to be carried on the articulated trailers. The rear swivel bunk slides rotatably within a slot extending to the rear of the pup trailer allowing the container to be directly unloaded. The coupling means between the trailers is adjustable between a highway articulated driving relationship, and a backing up aligned relationship. One advantage is the gross vehicle weight and payload are improved. Another advantage is that the container more closely tracks the tractor and trailer wheels on turns, thus providing more manoeuvrability and safety.

Abstract: A front gate for a shopping cart basket comprises two stanchions, each formed from a wire fixed to the front edge of a side panel of the basket, and a gate panel including horizontal wires defining upper hinge pintles and lower latch pintles. The wires forming the stanchions are bent to define vertical slots having front openings and permitting vertical movement of the gate panel between a lower position and an upper position when the hinge and latch pintles extend into the slots. The openings are disposed to permit the gate panel to swing on the hinge pintles and the latch pintles to exit the slots via the openings when the gate panel is raised from a lower position to an upper position whereupon the gate panel can be then dropped at the hinge pintles so as to open the front gate.

Abstract: A safety ski binding in which the bottom of the ski boot is held out of contact with the top of the ski to eliminate the influence of frictional forces on the safety release and in which the anti-friction roller of the toe support structure is mounted on the ski in such a manner that its vertical axis of rotation remains substantially constant during engagement and disengagement.