Abstract: An exercise apparatus having a base, a first arm pivotable at one end thereof to the base, a second arm pivoted along its length to the other end of the first arm, and resilient means between the first and second arms, whereby relative movement of the arms is effected by the application of force reacting against the resistance of the resilient means. By the selection of the pivot points and simplified construction of the present invention, and the pivotal nature of the first arm relative to the base, the apparatus is easily foldable to a collapsed condition for easy storage and transportation. In operation, the first arm may be prevented from pivoting by the insertion of a pin through mating holes between the first arm and the base, and when the pin is removed, the first arm is pivotable to a position adjacent the base, so that the entire unit has a thickness, in its folded state, of approximately the thickness of the two arms and base member.

Abstract: A swing gate providing free access when the electrical power that drives a hydraulic system to open and close the gate is off is described. The hydraulic system comprises a reversible electrical motor to drive a hydraulic pump which in turn provides hydraulic fluid under pressure to a double acting hydraulic actuator. An electrical actuated solenoid valve is located in a bypass line of the hydraulic system and the solenoid valve is designed to open when the electrical power is off which allows the hydraulic fluid to drain from one side of the actuator into a reservoir. Since one side of the double acting actuator contains no fluid under pressure, the swing gate can be opened by hand.

Abstract: A liquid dispensing apparatus installed on a bicycle for use by a person operating the bicycle or a liquid dispensing apparatus installed on a person for use by a person operating inline skates is described. In the preferred embodiment a carbonated drink in a container is shaken by the bouncing of the bicycle while moving which pressurizes the container. A tube leading from the container to a mouthpiece allows a person to take a drink. Another embodiment provides a pumping bulb to supply the pressure while a third embodiment uses a co.sub.2 cartridge to supply the pressure. Another installation shows a person using inline skates. The inline skate installation uses a carbonated drink in a container being shaken by the skater to supply the pressure which forces the liquid to the mouthpiece thereby allowing a person using inline skates to take a drink.

Abstract: A retractable bicycle rack is described having a movable portion and a fixed portion. The fixed portion is attached to an overhead member such as those found in an automobile garage. The movable portion, when moved from the horizontal position to the vertical position activates compression springs attached between the movable portion and the fixed portion tithe frame. The springs have an over-center position when the rack is placed in the full vertical position which holds the rack in a vertical position. When the bicycle or bicycles are placed on the movable portion of the rack, the spring force in the compression spring moves the rack from the vertical position to the horizontal position. A draper controls the movement from the vertical position to the horizontal position. The preferred embodiment is desired for two bicycles, however, if more than two bicycles are desired, the compression spring may adjusted to provide a stronger compression force.

Abstract: A system for sensing and repelling an animal is disclosed. The system contains an infrared motion detector which detects any warm moving object. Once detection has occurred, a Radio Frequency (R.F.) pulse signal is transmitted by a radio transmitter/receiver to the involved area. If an animal such as a family pet is wearing a collar which contains a radio receiver/transmitter, the R.F. pulse signal is received by the receiver/transmitter in the collar and an R.F. pulse response signal is transmitted which is received by the transmitter/receiver in the system. If a signal is received, the repelling subsystems which is a flood light and a water spray is deactivated. If a signal is not received, the repelling subsystems are activated to scare the unwanted animal away. The system can also be used for sensing the presence of an animal since the R.F. unit is detachable and can be used as a stand alone unit.

Abstract: A personal watercraft garment heating system is disclosed that will provide warmth to a user of a personal watercraft in cold weather. The garment can be either a dry suit or a wet suit that has tubing incorporated in the lining of the garment. In one embodiment the heated fluid is diverted from the personal watercraft propulsion system and manually metered into the tubing incorporated in the lining of the garment to obtain a comfortable temperature. In another embodiment the heated fluid is diverted from the personal watercraft propulsion system and manually nixed with non-heated fluid to obtain a comfortable temperature. In both embodiments the heated fluid is transmitted through flexible tubing to the garment through flexible tubing in the garment and then dumped overboard. A quick disconnect in the flexible tubing to the garment is provided in case the user falls off the personal watercraft.

Abstract: A apparatus and method for effecting repair to damaged, nonstressed aircraft structure is described. A sheet of material comprised of woven glass cloth impregnated with a resin cured under temperature and pressure forms the basic patch. One side of the patch has a Tedlar.RTM. overlay attached to the sheet face in the preferred embodiment. This patch material meets the Federal Aviation Regulations (FAR 25.855) which is required to provide for fire resistant material on transport aircraft. A pressure sensitive film is bonded to the side opposite the Tedlar.RTM. overlay. This combination of glass sheet and pressure sensitive film is pressure bonded to the damaged structure and further held in place by mechanical fasteners which can withstand a temperature of at least 1,700 degrees Fahrenheit.One of the primary applications of this invention is in the cargo liner repair of transport aircraft.

Abstract: A pavement road marker for engagement with an underlying roadway surface for providing a marking being visible from an oncoming vehicle on the roadway surface is described.A high strength, impact resistant plastic body with a front, a back and two sides is utilized having at least one aperture from the exterior to the interior of the body where a solid curved glass member is positioned. The glass member which has reflective material attached hereon provides a retroreflective lens that is permanently secured and hermetically sealed in the plastic body by a potting compound. The road marker is then aligned and attached to the roadway surface with an epoxy cement.

Abstract: A toy water gun that can release a directed stream of water from a pressurized receptacle is disclosed. The toy water gun is connected to the pressurized receptacle by a flexible hose and a pull on the trigger releases a directed stream of water. In one embodiment, the receptacle has a one way valve attached thereto that allows pressurized water to only enter the receptacle. A flexible tube is attached to the one-way valve on one end with the flexible tubing terminating with a hose fitting on the other end attachable to a hose bib. The pressurized water is supplied by a water system such as a municipal water supply. Another embodiment uses a bladder inside a receptacle containing trapped air that is connected directly by flexible tubing to a shut off valve which is further connected by flexible tubing to a hose bib that supplies pressurized water.

Abstract: A practice sports racket and ball in combination is disclosed. The racket has an elastic member stretched over both sides of the frame. The elastic member is partly covered with the hook fasteners of hook and loop fastener material and the ball is covered with the loop fasteners of hook and loop fastener material. The center of this practice sports racket, sometimes referred to as the "sweet spot" is void of any hook fastener material. In practice, if the ball hits the "sweet spot", it will rebound as a normal hit. However, if the ball is off center, it will be contained as the loop fastener material on the ball makes contact with the hook fastener material on the practice sports racket.

Abstract: An athletic shoe with an interchangeable wear sole which can be selected to match a specific sport, is disclosed. An upper portion of the athletic shoe is designed for an individual foot of a particular wearer. This upper portion of the athletic shoe contains an attached upper sole which has molded on the bottom surface a plurality of strategically placed protruding resilient knobs and a protruding resilient edge rail which engages knob chambers and a rail slot located on the upper surface of the wear sole. VELCRO surface on the upper sole and the wear sole also are engaged. Interlocking devices on the edge of the upper sole and wear sole are pinned together. The above combination holds the selected wear sole firmly on the upper sole attached to the upper portion of the athletic shoe.