Interior deadbolt knob fastening apparatus

Details Interior deadbolt knob fastening apparatus Interior deadbolt knob fastening apparatus

1990-08-03

1991-03-19

Nicholson, Eric K.

Closure fasteners

Portable

70416, 292258, 29225667, E05B 1300

Patent

active

050004980

ABSTRACT:
An apparatus for preventing the unlocking of a deadbolt lock with a key in which clamping arms are used to grip a deadbolt knob or key on the opposite side of the door and are held in place by a retaining pin which is inserted into a cavity in the door. The use of various clamping materials and types provides a degree of versatility to the apparatus.

REFERENCES:
patent: 177846 (1876-05-01), Jenkins
patent: 242030 (1881-05-01), Osterberg
patent: 3585827 (1971-06-01), Dominguez
patent: 3921423 (1975-11-01), Hollins
patent: 3933014 (1976-01-01), Moses
patent: 4064721 (1977-12-01), Morgan
patent: 4185483 (1980-01-01), Lupton et al.
patent: 4715200 (1987-12-01), Katsaros
patent: 4827745 (1989-05-01), Baugh
patent: 4869086 (1989-09-01), Richards
patent: 4947663 (1990-08-01), Yeager

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