Appliance anti-theft and protection circuitry

Details Appliance anti-theft and protection circuitry Appliance anti-theft and protection circuitry

1980-02-19

1981-08-18

Waring, Alvin H.

Communications: electrical

Condition responsive indicating system

Specific condition

340571, 340652, 340687, G08B 1314

Patent

active

042849837

ABSTRACT:
New and unique circuitry suitable for being located in electrical appliances, and which protects such appliances from theft and unauthorized movement. More particularly, the invention discloses circuitry for providing an alarm when the appliance is both disconnected and moved. The circuitry monitors both power input and movement of the appliance, and provides a pulsating signal suitable for sounding and audible alarm until the appliance is either reconnected or the alarm interrupted by a key switch. According to one particular embodiment, a mercury interrupter is uniquely arranged to operate as both the motion sensor and the oscillator for providing pulsating power to the audible alarm.

REFERENCES:
patent: 3484775 (1969-12-01), Cline
patent: 3710371 (1973-01-01), Whalen et al.
patent: 3766540 (1973-10-01), Schapfer et al.
patent: 3794989 (1974-02-01), Manley et al.
patent: 3836901 (1974-09-01), Matto et al.

Affiliated with

Also associated with

Rating

Appliance anti-theft and protection circuitry does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Appliance anti-theft and protection circuitry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Appliance anti-theft and protection circuitry will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-40334