Abstract: A trolley with two telescopic handles each including a first tube received in a second tube received in a third tube. The first tube has first and second holes formed therethrough. The second tube has first, second and third holes formed therethrough. The third tube has a hole formed therethrough. A first locking device is mounted on the second tube so that a latch thereof is insertable through the first hole formed through the second tube. The latch of the first locking device is further insertable through the first and second holes formed through the first tube to lock the first tube in different positions in the second tube. A second locking device is mounted on the third tube so that a latch thereof is insertable through the hole formed through the third tube. The latch of the second locking device is further insertable through the second and third holes to lock the second tube in different positions in the third tube.

Abstract: For a shopping cart, an undercarriage comprises a tubular frame and a tray, a back portion of which includes an integral basket having a front wall, a back wall, and two side walls. The frame has two lateral portions extending longitudinally between the front and back ends of the undercarriage, at a lower level and a transverse portion extending transversely near the back end of the undercarriage, at a higher level. The tray and the basket are made of welded wires. The back portion is disposed to rest against the transverse portion of the frame in a generally level position of the tray and is elevated in an upwardly tilted position of the tray. At the back portion, one of the wires defines a bail, which extends backwardly so as to overlie the transverse portion of the frame in the generally level position of the tray.

Abstract: A collapsible surf or sailboard dolly having the option to be manually towed behind one walking or be trailered behind a bicycle using a new and improved universal hitch attached to a bicycle. The bicycle hitch mounts generally horizontally to the bicycles accessory holes and clamped around frames chainstay holes. The dolly has a rear main wheeled support assembly strapped to a board. The main support assembly has wheels which are removable (in seconds) without the use of any tools. The wheels are held to the assembly with a Velcro and strap wrapping arrangement which positively hold the wheels to the main support tube. The dolly has a separate arm structure which straps to the nose of the board and is held onto the board by the wedging effect of the strapping arrangement. The rear support assembly is held to the board with the same wedging effect. A tightened center coupling strap causes the front arm structure and rear main support strapping to wedge over the board.

Abstract: A pivoting seat system that enhances performance, convenience, safety, and the general appeal toward comfort as well as control of targeted muscle groups to exercise. The stationary bike, recreational, and avid professional bicycle rider can utilize this system as it maintains proper seating positions and optimum leg pedaling lengths throughout its rearward movements, and also offers both rearward and forward seat clearances while standing on the pedals in adverse terrain conditions, such as varying downhills, and downhill with obstructions, turns, curves, etc. The seat locking and releasing system is controlled by activation of a release lever on the handlebar, and is body weight driven in the rearward positions and spring loaded toward movement in the forward positions. Its unique parallel bar technology allows for the seat to remain in the same orientation throughout all its desired positional movements.

Abstract: Safety ski binding designed to hold releasably in position the front portion of a boot (2) mounted on the ski (3), comprising a forward fall-compensation mechanism comprising a pedal (12) forming a forward fall sensor. The front end (12a) of the pedal (12) is, in the pedal rest position, positioned at a distance (d) above a moveable control element (9) which approximates the standard tolerance for the thickness of the sole (6) of the boot, i.e., by a distance between accepted maximum and minimum thicknesses of the sole (6).

Abstract: A trailer hitch system utilizing a support member which includes a well that is accessible at the exterior of a vehicle. The support member is connected to the frame of the vehicle. A hitch element including a base portion, is capable of lying within the well of the support member such that a fitting for hitching a trailer is available for use external to the well. A lock removably holds the hitch element to base portion within the well. Thus a variety of hitch elements are interchangeable with the present assembly system.

Abstract: An adjustable coupling device for coupling a ski boot to a ski. The coupling device has a longitudinal axis and includes a toe binding, a heel binding and length adjustment device. The length adjustment device is capable of altering the distance between the toe binding and the heel binding along the longitudinal axis to accommodate different-size ski boots. The length adjustment device has a first drive element connected to the toe binding and a second drive element connected to the heel binding. The drive elements can be moved and set at a position corresponding to the length of the ski boots. An attachment device is provided to attach one of the bindings to a surface of the ski at one of several preset positions in such a manner that the remainder of the coupling device can move freely in a direction perpendicular to the surface. Alternatively, the attachment device may attach both of the bindings to the surface.

Abstract: An in-line roller skate which includes a base, a front brake assembly mounted on a front wheel assembly, and a rear brake assembly mounted on a rear wheel assembly. The front and rear brake assemblies are respectively mounted to the front and rear of the bottom of the base. The front wheel assembly includes a bridge member having first and second forked ends to which wheels are mounted and a mediate portion for mounting the front brake assembly. The mediate portion includes a receiving compartment for receiving the lower part of the front brake assembly. The compartment is designed to allow pivotal movement of the front brake assembly in the compartment. The front brake assembly further has a brake member at a front end thereof to contact with the frontmost wheel of the roller skate when braking. Similarly, the rear brake assembly has a brake member at a rear end thereof to contact with the rearmost wheel of the roller skate when braking.

Abstract: A platform for supporting an oxygen tank and its carrier on a conventional folding wheelchair is disclosed. The platform is attached to the wheelchair and pivots between an operative position and a storage position. The platform is located in the operative position when the wheelchair is unfolded for use, and is capable of supporting the oxygen tank and its carrier in the operative position. The platform is located in the storage position when the wheelchair is folded for storage or transport.

Abstract: A trailer frame comprised of a tongue and longitudinal side frame members extending rearwardly from the tongue. The side frame members are formed of hollow tubing having top, bottom and side surfaces. Cross bar members are positioned between the longitudinal side frame members. An axle for mounting wheels and tires is also provided. A pair of fenders with mounting straps provide cover for the top portion of each of the tires and a pair of leaf springs is provided to suspend the axle from the trailer frame. The center portion of each of the springs is mounted to one end of the axle. Openings associated with each spring are formed in the bottom surface of each side frame member to allow the end portions of the leaf springs to be positioned within the interior of the tubing. Loops are formed at the ends of each leaf spring. Two bolts associated with each spring are horizontally positioned through the side surfaces of the side frame members above the openings.

Abstract: A towing vehicle for maneuvering airplanes without draw tongue, has a chassis (5), which exhibits a fork-shaped receiver space between the wheels of one wheel axle, in which a gripping and retracting device (28, 68) is attached that can be retracted and extended and works together with a lifting device, by means of which the nose wheel (24) of the airplane can be grasped and pulled onto a scoop (14) that can be raised and lowered relative to the chassis. In it, only a single scoop (14) is present to support the nose wheel (24) in the area of the nose wheel load line of application to prevent clamping and deformation forces on the nose wheel (24) during the retraction procedure or during raising. The scoop can be tipped around a horizontal axle attached to the chassis and its tipped position relative to the chassis can be adjusted by control.

Abstract: A hitch for a vehicular tow trailer which can be rigidly yet removably attached to a sleeve has a shaft which slides into the sleeve and locks with a pin in a conventional manner. The shaft is divided into two sections that are separated by parallel planes that are inclined to the direction the shaft is inserted in the sleeve. The sections are connected by a bolt which traverses the inclined planes threading into one section while being operable from the outside of the other. Tightening of the bolt causes the sections to slide to opposite sides of the sleeve, wedging the shaft within the sleeve and eliminating play between the shaft and sleeve.

Abstract: Apparatus for precisely, rigidly and releasably mounting the drive wheels to a wheelchair while imparting customized camber and toe adjustments to the wheels. A pair of precisely fixed surfaces integral with the wheelchair frame imparts a predetermined base camber to the drive wheels, and interchangeable members are provided for imparting smaller preselected adjustments to the large base camber and for mounting the wheels to the frame with camber angles equal to the base camber as adjusted by the interchangeable members. The interchangeable members may also include preselected toe adjustments to be imparted to the mounted wheels.

Abstract: A power steering apparatus includes a main hydraulic path, a reactive oil pressure supply path, and a hydraulic reaction mechanism. The main hydraulic path supplies an oil pressure from a pump to a flow path switching valve connected to a power cylinder. The reactive oil pressure supply path branches from a portion of the main hydraulic path. The hydraulic reaction mechanism introduces part of the oil pressure, caused to diverge by the reactive oil pressure supply path, into a hydraulic reaction chamber for generating a steering reaction through a hydraulic reaction control valve mechanism controlled in accordance with the traveling conditions of a vehicle. A restriction smaller in diameter than the main hydraulic path is arranged between a branch portion branching from the main hydraulic path and the hydraulic reaction control valve mechanism, midway along the reactive oil pressure supply path.

Abstract: A fairing for a motorcycle includes a fairing cover extending from a front end of a frame for a motorcycle rearwardly to cover both sides of an engine operatively mounted adjacent to the front end of the frame of the motorcycle. A plurality of air flow apertures are provided in the fairing for reducing air resistance during cornering of the motorcycle. The plurality of air flow apertures are provided in substantially the entire surface of the fairing. The surface area occupied by the plurality of air flow apertures is more than approximately seventeen percent of the entire surface area of the fairing.

Abstract: A dual drive bicycle includes an arm powered drive assembly including a drive mechanism mountable on one of the bicycle wheels or on the foot powered crank mechanism. The drive assembly includes a sprocket and a ratchet assembly for pivotal engagement with the sprocket wheel, a drive line coupled to the ratchet assembly for driving the ratchet assembly and the drive sprocket, and a free wheeling mechanism for coupling the ratchet assembly and the drive sprocket wheel. Movement of the handlebar moves the drive line which engages the ratchet assembly for driving the drive mechanism.

Abstract: This invention relates to an improved water delivery apparatus which may be adapted to be mounted for use on a bicycle in which water may be delivered to be sprayingly discharged through the sprayer or to a mouthpiece which may be placed in a bicycle rider's mouth to allow water to be discharged directly therein. This apparatus operates with an existing standard water bottle for a bicycle and alleviates the possibility of having a stream of water misdirected, distracting the rider, nor will a rider be caught off-guard receiving a stream of water in the face when a spray was anticipated.

Abstract: A steering system used in a ground-engaged vehicle having independently motorized steerable wheels, where a steering assistance is provided by generating a differential torque in the motors for producing steering assistance forces, is disclosed. The steering assistance is provided, when a torque is applied on the steering wheel, by generating the differential torque by the motors and thus producing steering assistance forces due to virtual lever arms defined between the mean contact point of a wheel with the ground, and the virtual intersection with the ground of a prolongation of the pivot axis of the wheel.

Abstract: The aerodynamic bicycle comprises a bar or beam which connects at the rear to the rear wheel hub and at the front to a exoskeletal handlebar and downward extension which attaches to the front wheel. Just forward of the rear wheel, a vertical tube is attached to the bar so that it has limited pivoting capability. At the top of the vertical tube, a second tube inserts slidably within the vertical tube and is supported therein by a shock-absorbing device or material. The bottom of the second tube provides the attachment means for the pedal crank and chain rings. Hand-holds and arm rests are integrated into the exoskeletal handlebar so the exoskeletal handlebar itself is used for steering. To permit a complete tuck for racing, a pair of mirrors is provided so the rider can keep his or her head down and rest his or her helmet on the exoskeletal handlebar but still see forward.

Abstract: In a thin-walled structure being cleaned, there are generated converging waves of elastic deformation by virtue of synchronous excitation of single equal pulses along the contour of the surface being cleaned in the points opposite to one another. To effect this method use is made of an electromagnetic source (1) of mechanical pulses in combination with a waveguide (2) transmitting mechanical pulses to the structure (4) being cleaned and representing a ring (8) with a disk (9) designed to accommodate the source (1) and connected to this ring by jumpers (10).