Foot-operated door security device

Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Closure checks

Patent

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Details

16 85, 16DIG10, 16DIG17, 16 86A, 292DIG15, E05F 500

Patent

active

047979704

ABSTRACT:
A door security device which is mounted in the floor or other flat surface in the arc of passage of a door which can be operated solely by one's foot. The door security device includes a housing with a flange plate which is mounted in the opening of the floor surface. A stop member is provided within the housing which assumes two alternate positions, a lowered position and a raised position. In the lowered position, the door is free to move through its arc of passage without obstruction by the door security device. By pressing down on the principal surface of the stop member, a latching mechanism is actuated which allows the stop member to be spring biased into the open position. In the open position the stop member obstructs the motion of the door through its arc of passage so that the door can be opened only a limited distance. To lower the stop member, one simply pushes down on the raised stop member a distance sufficient to actuate the pressure responsive latch mechanism that engages and holds the stop member in the lowered position. The door security device is principally spring actuated and is preferably constructed of metal to provide good endurance and strength characteristics.

REFERENCES:
patent: 3805322 (1974-04-01), Serrano
patent: 3833963 (1974-09-01), Waters
patent: 4216986 (1980-08-01), McNinch et al.
patent: 4303266 (1981-12-01), Volpi
patent: 4462623 (1982-09-01), Grant
patent: 4501444 (1985-02-01), Dominquez
patent: 4570984 (1986-02-01), Russ
patent: 4601502 (1986-07-01), Van Dyke
patent: 4601504 (1986-07-01), Wolf
patent: 4631776 (1986-12-01), King

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