Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1989-10-17
1991-05-21
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
Specific condition
340652, 340682, G08B 2100
Patent
active
050179128
ABSTRACT:
A shear detection circuit includes a resistive element in series with another resistor for providing an electrical signal at a node proportional at the value of the resistors when a voltage potential is applied to the detection circuit. The electrical signal is compared to a known value to permit detection of a severed shear pin or an open or short circuit in the detection circuit. The electrical signal is monitored by a computer for displaying the status of the shear pin and the detector circuit and for storing the status of the shear pin and the shear detection circuit for maintenance or repair.
REFERENCES:
patent: 4636778 (1987-01-01), Corkran et al.
patent: 4714917 (1987-12-01), Counter et al.
Bell Helicopter Textron Inc.
Swann III Glen R.
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