Abstract: The support ring of the includes an outer mounting bracket that is connected to a fixed bracket by a swivel. The outer mounting bracket pivotly supports a bolt-together collar that rotatably receives an inner collar. The inner collar is designed to tightly clamp onto the tool to be supported. The inner collar and the tool thus rotate inside the outer collar while the outer collar allows the tool to pivot with respect to the bracket. The support ring thus allows the tool to be weightlessly supported in essentially any useful position as if the tool were not supported at all.

Abstract: An antitheft device for a vehicle that includes a deadbolt mounted on the vehicle door for providing security to the vehicle door. The deadbolt operates a normally closed switch which is in series circuitry with the vehicle battery, starter and ignition key switch. The deadbolt and switch are arranged so that the switch is open when the deadbolt is in locked position and the switch is closed when the deadbolt is in unlocked position.