Attitude change alarm

Details Attitude change alarm Attitude change alarm

1979-04-03

1981-08-18

Waring, Alvin H.

Communications: electrical

Condition responsive indicating system

Specific condition

340 52H, 340 65, B60R 2510, G08B 1300

Patent

active

042849845

ABSTRACT:
An attitude change alarm for securing articles from theft or other undesired movement. The alarm includes a case having a wall which defines a hollow interior. Resistive elements are maintained within the wall in spaced relationship with each other and in common communication with an electrically conductive surface on the outside of the wall. An electrically conductive member is fixedly maintained in the hollow interior in constant contacting engagement with a conductive fluid which makes selective engagement with certain of the resistive elements. When the alarm is moved, a current is transmitted from the conductive coating through the resistive elements, fluid, and member, and is passed to a transformer which gates an SCR into conduction, activating the alarm. Various geometrical configurations of the attitude change alarm are presented, each having specific attributes associated therewith.

REFERENCES:
patent: 2823367 (1958-02-01), Huron
patent: 3701093 (1972-10-01), Pick
patent: 3710371 (1973-01-01), Whalen et al.
patent: 3721956 (1973-03-01), Hamann et al.

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