Communications: electrical – Condition responsive indicating system – With particular coupling link
Patent
1979-12-27
1986-08-05
Crosland, Donnie L.
Communications: electrical
Condition responsive indicating system
With particular coupling link
340534, 340568, 340574, 340356, 109 31, 109 36, 109 38, G08B 108
Patent
active
046046070
ABSTRACT:
A security device simulating a currency pack or the like to foil robbery includes a receiver unit for receiving a local carrier signal generated locally at the exits of the bank. The carrier signal includes information in a predetermined binary code and the security device includes logic elements producing a signal activating a tear gas charge or the like when a signal is received carrying information in the predetermined code.
REFERENCES:
patent: 3564525 (1971-02-01), Robeson et al.
patent: 3618059 (1971-11-01), Allen
patent: 3848231 (1974-11-01), Wootton
patent: 4021807 (1977-05-01), Culpepper et al.
patent: 4032848 (1977-06-01), Shaughnessy
Sanderford, Jr. Hugh B.
Souvestre John R.
Crosland Donnie L.
Protection Products Corporation
Shoup Guy W.
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