Security device for attachment to the rails a movable door or wi

Details Security device for attachment to the rails a movable door or wi Security device for attachment to the rails a movable door or wi

1992-04-10

1993-03-30

Yasich, Daniel M.

Signals and indicators

Alarms

Burglar

116112, 222 39, G08B 1308

Patent

active

051974070

ABSTRACT:
A security device in the form of a combination door or window stop comprising a housing for containing a canister of gas under pressure, a valve mechanism for releasing the gas through a sound generator upon unauthorized movement of an associated door or window, and means for selectively clamping the housing on the rail of the door or window.

REFERENCES:
patent: 1367651 (1921-02-01), Ashley
patent: 1428189 (1922-09-01), Stinzing
patent: 2904223 (1959-09-01), Ryan
patent: 3299960 (1967-01-01), Stern
patent: 3690286 (1972-09-01), Gantt
patent: 3695212 (1972-10-01), Gantt
patent: 3804053 (1974-04-01), Gray
patent: 4018361 (1977-04-01), Fegley
patent: 4024830 (1977-05-01), Fegley et al.
patent: 4166428 (1979-09-01), Freeman et al.
patent: 4478168 (1984-10-01), Wimmer
patent: 4722461 (1988-02-01), Symmank

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