Anti-vandal door lock apparatus

Details Anti-vandal door lock apparatus Anti-vandal door lock apparatus

2005-05-03

2005-05-03

Gall, Lloyd A. (Department: 3676)

Locks

Special application

For control and machine elements

C070S224000, C070S370000, C070S432000, C070S452000, C070SDIG006, C070SDIG005, C070SDIG006

Reexamination Certificate

active

06886379

ABSTRACT:
An anti-vandal door lock apparatus in which a cylinder lock such as a mortise lock cylinder is employed for unlatching a cylindrical lock assembly. In a preferred embodiment, the mortise lock cylinder is mounted to the outside of a door trim such as a pull plate, with the cylindrical lock mounted to the inside of the trim, and the pull plate is mounted to the door, in such manner as to effect an anti-vandal door lock assembly. Preferred embodiments may include a hold-back feature, as well as a feature for facilitating secured removal of the mortise lock cylinder as for re-keying.

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Catalog p. 8, Architectural Builders Hardware Mfg., Inc., “Overhead Holders/Stops, Electro-Magnetic Door Holders, Hospital Push/Pulls, Coordinators” (1998).
Photograph of door pull manufactured by Triangle Brass Manufacturing Company, Inc., prior to Jan. 2000.
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Instructions for installing Sargent 10-Line and FW-10 Line Locks, Sargent Manufacturing Company, (single 2-sided sheet copied as 4 sheets), prior to Jan. 2000.

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