Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1988-02-08
1990-02-06
Orsino, Joseph A.
Communications: electrical
Condition responsive indicating system
Specific condition
340689, 200 6147, 200DIG2, 364550, G08B 2300
Patent
active
048991333
ABSTRACT:
An alert device is provided which initiates an alarm if a person wearing the device ceases normal movement. The device includes a movement sensor having at least one mercury switch which generates a signal when the mercury shifts in response to movement. The device also includes a microcomputer to receive the mercury switch input signals--the microcomputer being programmed to distinguish between inputs indicative of normal wearer movement and inputs which may represent a wearer in duress. Preferably, the motion sensor provides three mercury switches oriented to sense movement in three normal planes.
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Signal Systems Catalog 026.
Alert-COM Instruction Manual.
Firefly Instruction Manual.
Detex Corporation
Jackson Jill D.
Orsino Joseph A.
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