Abstract: A switch including a housing in which a pair of electrical contacts are positioned for movement between open and closed positions. An actuator movably mounted in the housing moves between contacts open and contacts closed positions. The actuator includes a wiper wall movable between and across the contacts for opening same and wiping same upon movement of the actuator to its contacts open position. The entire switch is assembled without the use of mechanical fasteners or bonding of any kind.

Abstract: A harnessing device formed by a locking head and an attached ladder strap. The head contains a locking tang and a guide channel that receives the strap after encirclement of items to be harnessed. The tang engages the rungs of the ladder strap for the adjustable retention of the harnessed items. The free end of the strap has a light-weight webbed tail that facilitates the insertion of the strap into the head. The strap is advantageously molded of a stretch reorientable material and is subsequently stretched to produce a suitable strengthening and elongation of the webbed tail.

Abstract: A harnessing device formed by a locking head and an attached serrated strap with gripper rails. The head contains a guide channel for receiving the strap after encirclement of the items to be harnessed, and an internal locking tang. The serrated strap has side rails which are proportioned to grip the encircled items. The desired gripping action is facilitated by the inclusion of serrations on the rails.