Lock and alarm apparatus

Communications: electrical – Selective – Having indication or alarm

Patent

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Details

200158, 307 10AT, 340542, 340568, B60R 2510

Patent

active

041515064

ABSTRACT:
An alarm system for a cycle comprising an electrically conductive cable adapted at its ends to be secured to a housing assembly that is in turn mounted at a suitable location on the frame of the cycle. Control circuitry connects the cable to a warning device and is operable in response to detection of an electrically conductive contact with the cable to activate the warning device for a preset length of time. The housing assembly includes a hollow casing body and a closure plate that is secured to the casing body by screw members which are connected to the control circuitry and which function as switches. In response to a removal of any one of the screw members a predetermined distance the control circuitry activates the warning device.

REFERENCES:
patent: 880668 (1908-03-01), Jones
patent: 2066299 (1936-12-01), Mylius
patent: 2627065 (1953-01-01), Poulson
patent: 2821581 (1958-01-01), Parker et al.
patent: 3728675 (1973-04-01), Horn et al.
patent: 3755778 (1973-08-01), Kennedy
patent: 3781861 (1973-12-01), Adler et al.
patent: 3803576 (1974-04-01), Dobrzanski et al.
patent: 3824540 (1974-07-01), Smith

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