Fire escape – ladder – or scaffold – With indicator – signal or alarm
Patent
1996-07-29
1998-11-03
Berger, Derek J.
Fire escape, ladder, or scaffold
With indicator, signal or alarm
182 5, 182234, 182241, E06C 534
Patent
active
058295488
ABSTRACT:
An inspection indicator for a fall prevention safety device of the type which includes a housing, a drum rotatably mounted in the housing, a cable adapted to be wound around the drum, and a centrifugally operated brake mechanism which is activated in response to an initial fast rotation of the drum in the unwinding direction and brakes the rotation of the drum to prevent further unwinding thereof. The inspection indicator comprises a pin which is secured to and extends from the brake mechanism and a spring loaded member which is releasably secured to the housing of the safety device against the restoring force of a spring. The pin is adapted to release the spring loaded member thereby causing the same to be ejected outwardly from the safety device in order to indicate that the safety device has been activated and/or to indicate that the safety device has been in use for a predetermined period of time.
REFERENCES:
patent: 291326 (1884-01-01), French
patent: 4253544 (1981-03-01), Dalmaso
patent: 4489919 (1984-12-01), Ostrobrod
patent: 4660679 (1987-04-01), Ostrobrod
patent: 4877110 (1989-10-01), Wolner
patent: 5186289 (1993-02-01), Wolner et al.
patent: 5220977 (1993-06-01), Wolner
patent: 5316103 (1994-05-01), Bell et al.
patent: 5343981 (1994-09-01), Schroemges et al.
Berger Derek J.
Lehrer Norman E.
Smith Richard M.
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