Abstract: An adjustable arrow rest for an archery bow in association with an adjustable arrow-cushion plunger. The arrow rest is adjustable in both horizontal and vertical planes, while the cushion plunger is horizontally adjustable. The arrow rest includes a pivotal support arm having a free end at right angles to a fixed end, the fixed end being laterally adjustable relative to the bracket mounting it to the cushion plunger. Lateral adjustment of the arm is accomplished by means of a spacer disc attached to the arm which can be moved by an adjustment nut in the spacer disc engaged on a threaded stud anchored to the bracket. Vertical movement is controlled by a setscrew which adjusts the support arm's pivot arc. The cushion plunger comprises a plunger rod slidably secured by a threaded fastener in a sleeve which anchors the bracket to the bow.

Abstract: An arrow rest for an archery bow is provided with two arrow support arms, each of which has a free end pivotal in an arc about a fixed end fastened to supporting structure mountable on a bow. Each of the arms is adjustably biased by an enclosed spring fastened on the structure adjacent to the arm, and is provided with an arc-limiting collar which limits the travel of the arm. One of the arms is adapted to pivot in a horizontal plane, the other in a vertical plane, such biased pivoting dampening temporary distortions imposed on the arrows as a result of bowstring forces generated during the process of the arrows' launch.

Abstract: An archery bow arrow rest having a pivotal support arm biased to support an arrow on its free end. At right angles to its free end, the support arm has a fixed end positioned in, and attached to a bushing. The bushing passes through and is rotatable in a mounting bracket connecting the arrow rest to the bow. The bushing is also encircled by an arm-biasing coil spring, one end of which is anchored to the bracket, and the other end to a torque-controlling knob adjustably attachable to the bushing. The knob encircles the spring, thereby enclosing and protecting it from dirt. In a preferred embodiment, the free end of the support arm has a circular member attached to it on which the arrows are placed, and which provides quiet, low-friction launches of arrows. Through its gradual rotation, the member distributes arrow-induced wear on the member evenly over its surface.

Abstract: A power supply for the release circuitry of an electronic ski binding having a plurality of electrical sources, switches for controlling the connecting of the respective electrical sources to the release circuitry, and comparator circuits for actuating the appropriate switches to connect the electrical source having the highest electrical potential to the release circuitry.

Abstract: A method and apparatus for actuating a safety ski binding, for the purpose, in hazardous situations, of automatically releasing a ski boot from a ski on which it is held. The forces exerted by the ski on the leg of the skier are continuously integrated with respect to time. The thus formed time integral of the force releases the connection between the ski and boot on reaching a threshold value representing a product of force.times. time which is higher than the integration threshold value corresponding to the holding force of the ski binding. To avoid a summation of pulses, a pulse that has not resulted in actuation is cleared through downward integration.