Spring joint with overstrain sensor

Details Spring joint with overstrain sensor Spring joint with overstrain sensor

2011-06-28

2011-06-28

Leon, Edwin A (Department: 2833)

Electricity: circuit makers and breakers

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Reexamination Certificate

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07968812

ABSTRACT:
A flexible joint may include a conductive compression spring and a pair of non-conductive spring cages disposed at opposite ends of the compression spring to support the compression spring. A conductive member disposed inside the compression spring may extend between the pair of spring cages. One end of the conductive member may be fixed for movement with one of the spring cages and another end of the conductive member may be fixed for movement with the other of the spring cages.

REFERENCES:
patent: 3300600 (1967-01-01), Wermager et al.
patent: 4978312 (1990-12-01), Fodali
patent: 7507099 (2009-03-01), Cowgill et al.
patent: 7855345 (2010-12-01), Stevens et al.
patent: 2002/0025714 (2002-02-01), Wilcox

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