Abstract: An archery bow sight is set forth which may be affixed to a conventional bow for a vertical sighting irrespective of the rotation of the bow. The bow sight includes a plurality of curved pins representing different target ranges, but with each individual curved pin being a constant distance from the axis of the arrow such that the curvature of the pins allows for the bow to be tilted without affecting accuracy.

Abstract: An inexpensive, yet highly reliable, electrical switch contact assembly with excellent human factors considerations includes an electrical contact assembly having a plurality of switch positions, a cover plate disposed adjacent the switch contact assembly with an aperture for each switch position, and at each switch position an apertured key, a follower disposed within the key aperture, a cap containing the follower within the key aperture and key and follower springs biasing the key and follower respectively to provide separate and independent control over key actuation and switch contact closure forces. A contact engagement post of the follower may be accurately positioned above a switch contact notwithstanding variations in spring characteristics an a curvilinear engagement surface assures optimum distributed switch closure pressure for high reliability switch actuation.

Abstract: A keyboard switch assembly for use in telephones, calculators and the like positions a thin, flexible dielectric member with a switch closure conductive pattern printed thereon between substrate switch contacts and flexible bubble actuator mechanisms. The separate switch closure member permits the closure conductor pattern to be selected independently of constraints for proper bubble operation while permitting the flexible bubbles to be designed independently of requirements for switch closure patterns for optimum switch assembly design and operation.