Electricity: circuit makers and breakers – Switch activation inhibitor – Combined with connector coupling
Patent
1991-09-13
1993-03-16
Recla, Henry J.
Electricity: circuit makers and breakers
Switch activation inhibitor
Combined with connector coupling
200 5109, 200 5111, 200572, 439304, H01H 2706
Patent
active
051936658
ABSTRACT:
An electric plug including a disabling mechanism to preclude unauthorized use of the plug. The disabling mechanism includes a key cylinder lock assembly including a cam member rotated in response to rotation of the key cylinder, a pair of conductive track strips extending from a cord inlet to a location proximate the prongs of the plug, an insulative block mounted for linear sliding movement within the hollow of the housing of the plug between open and closed positions, and a pair of conductive contact strips carried by the insulative block and each including a portion slidably engaging a respective track strip and a portion movable into electric contact with a contact portion of a respective prong in response to movement of the insulative block to a closed position in response to rotation of the key cylinder lock.
REFERENCES:
patent: 2153721 (1939-04-01), Lottridge
patent: 2217585 (1940-10-01), Yates
patent: 2759159 (1956-08-01), Teetor
patent: 2761028 (1956-08-01), Teetor
patent: 2777023 (1957-01-01), Sepulveda
patent: 2846530 (1958-08-01), Wintriss
patent: 2905779 (1959-09-01), Schmier
patent: 3092695 (1963-06-01), Abrams
patent: 3453402 (1969-07-01), Suber
patent: 3691327 (1972-09-01), Chesler
patent: 4008382 (1977-02-01), De Rosa
patent: 4167658 (1979-09-01), Sherman
patent: 4647735 (1987-03-01), Sicher
patent: 4969833 (1990-11-01), Lindow
patent: 5070219 (1991-12-01), Grosskrueger et al.
Barrett Glenn T.
Recla Henry J.
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