Alarm and locking device to prevent theft of an article

Details Alarm and locking device to prevent theft of an article Alarm and locking device to prevent theft of an article

1976-09-20

1980-07-08

Caldwell, Sr., John W.

Communications: electrical

Selective

Having indication or alarm

70DIG49, 340571, 455345, 455348, G08B 2100, B60R 1102

Patent

active

042119952

ABSTRACT:
A self contained alarm device is disclosed for aiding in the prevention of the theft of articles from an automobile, such as a citizens band radio, by sounding an audible alarm in the event of an attempted theft. The device includes a box or container in which the article to be protected is mounted and at least one switch mounted on the outside of the container for articles, and at least one switch between the container for the articles and the lid for the container so that removing the container from the surface on which it is mounted will cause an audible alarm to be sounded. One embodiment of the device also includes an electrically conducting wire forming a loop outside of the container for encircling an element of the automobile such as the steering column so that if the loop is cut, the audible alarm will also be sounded.

REFERENCES:
patent: 1206011 (1916-11-01), Mahla
patent: 1223060 (1917-04-01), Louthan
patent: 1747194 (1930-02-01), Thomas
patent: 2627065 (1953-01-01), Poulson
patent: 3625031 (1971-12-01), Alley
patent: 3742480 (1973-06-01), Hoecker
patent: 3781861 (1973-12-01), Adler et al.
patent: 3815117 (1974-06-01), Gopperton
patent: 4035765 (1977-07-01), Wenner

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