Communications: electrical – Selective – Having indication or alarm
Patent
1977-03-25
1978-12-12
Caldwell, Sr., John W.
Communications: electrical
Selective
Having indication or alarm
73146, 200 52A, 200 6122, 200 6147, G01C 918
Patent
active
041298527
ABSTRACT:
A device for detecting a change in the slope of a member relative to a reference is disclosed. The device includes a slope sensor, mounted to the member, characterized by a resistance between one end of the slope sensor and an intermediate node, and a conductive fluid within the sensor which varies the effective resistance of the slope sensor between the end thereof and the node by an amount corresponding to the change in the slope of the member relative to the reference.
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Caldwell Sr. John W.
Jacover Jerold A.
Nowicki Joseph E.
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