Prymas M Tabron

US Patent:

40817962, Mar 28, 1978

Filed:

May 10, 1977

Appl. No.:

5/795646

Inventors:

Prymas M. Tabron - Baltimore MD

International Classification:

G08B 1502

US Classification:

340304

Abstract:

A housing for fire alarm boxes which positively marks a person turning in an alarm, frustrates attempts to use a hook or other tool in place of the hand for actuating an alarm, and which permits rapid actuation of the alarm but slows withdrawal of the hand from the housing; the housing forms an enclosure around and below an alarm box large enough for access of a hand upward from the bottom; a dye-covered resilient door at the bottom affixed to the front of the housing extending up and toward the bottom of the fire alarm box guards the access to the alarm, and must be deflected upwardly forcefully by a hand reaching for the alarm; withdrawal of the hand requires simultaneously a slow twisting of the hand to free it from the edge of the resilient door; the twisting covers all parts of the hand with dye so that evidence of turning in the alarm cannot be concealed short of concealing the entire hand.