Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1980-11-14
1983-06-28
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
Specific condition
340380, 340538, 340652, 340656, 34081531, G08B 1300, G08B 1318, G08B 1324
Patent
active
043908683
ABSTRACT:
The security of manufactured apparatus is enhanced through reducing the motivation for theft by partitioning the design of the manufactured apparatus so as to provide a component essential to the operation that is destroyed both in function and in appearance on moving the apparatus, is clearly distinguishable from a common article of commerce and cannot be singly, economically produced. The security is enhanced because theft is not profitable since a cost equal to any profit is incurred to replace the destroyed part and chance of detection is increased. Small apparatus theft, such as occurs with a typewriter, is rendered impractical by providing a power cord that is distinctive in appearance, not economically singly replaceable, that is so fastened that it must be fractured in order to remove the apparatus.
REFERENCES:
patent: 2912600 (1959-11-01), Isenberg
patent: 3618065 (1971-11-01), Trip et al.
patent: 3643250 (1972-02-01), Sander
patent: 3938124 (1976-02-01), Way et al.
patent: 4252007 (1981-02-01), Kerley
patent: 4262284 (1981-04-01), Stieff et al.
Radio Amateurs Journal, Feb. 1977, p. 47.
International Business Machines - Corporation
Riddles Alvin J.
Swann III Glen R.
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