John W Marcus

US Patent:

45692599, Feb 11, 1986

Filed:

Apr 25, 1984

Appl. No.:

6/603601

Inventors:

Sol R. Rubin - Beverly Hills CA
John S. Marcus - Santa Monica CA
James D. Holly - Santa Monica CA

International Classification:

B25B 1306

US Classification:

811211

Abstract:

Correspondingly keyed combination of a round-headed bolt fastener and a generally cylindrical socket, preferably for use in securing an automobile wheel cover against theft. The fastener has a plurality of axial slots, or lock impressions, about the periphery of the circular head which may be spaced in accordance with a preselected code. The wrench socket is provided with a corresponding number of key elements projecting inwardly from the cylindrical wall of the socket, the position of the key elements being in accordance with a preselected code. When the key code of the wrench matches the lock code of the fastener, the wrench socket may be slipped over the fastener head with the key elements engaging the lock impressions so that the wrench may tighten or untighten the fastener. The fastener has an axial recess extending from the outer face of the head with an inner beveled surface about the recess opening. The head also has an outer beveled surface extending about its outer periphery which provides a bearing surface for supporting the key elements during rotation of the socket until the matched position of the key elements and the lock impressions is reached.

US Patent:

D4368746, Jan 30, 2001

Filed:

Jul 13, 1999

Appl. No.:

D/107755

Inventors:

John Marcus - Los Angeles CA

Assignee:

Pacific Transducer Corp. - Los Angeles CA

International Classification:

1004

US Classification:

D10 85