Key release type burglar alarm

Details Key release type burglar alarm Key release type burglar alarm

1975-01-31

1976-07-20

Swann, III, Glen R.

Communications: electrical

Systems

Call station

200 6166, 200 6179, 340274R, G08B 1300

Patent

active

039710092

ABSTRACT:
A switching device for a burglar alarm includes an electrically conductive cylindrical ring-like housing and an electrically conductive contact element inserted into said housing and resiliently held against the contact housing to form a closed circuit. A key of specific structure and length is inserted against the contact element to force it away from the side of the cylindrical housing and thereby break the closed circuits and render the alarm inoperable. A retainer is also provided adjacent the key for holding the key in position against the contact element, thus assuring that the circuit remains open.

REFERENCES:
patent: 3596014 (1971-07-01), Erez
patent: 3685036 (1972-08-01), Torok
patent: 3771154 (1973-11-01), Takei

Affiliated with

Also associated with

Rating

Key release type burglar alarm does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Key release type burglar alarm, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Key release type burglar alarm will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-560562