Hinge assembly
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United States of America Patent
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Nov 4, 1997
Grant Date -
N/A
app pub date -
Feb 6, 1996
filing date -
Feb 6, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
The self-closing hinge assembly has a pair of cam members which are biased against each other by a pair of coil springs. The outer coil spring serves to bias the cam members together under a first restoring force and is effective during an initial opening of a door, for example to a 90.degree. position. The second inner spring becomes compressed only after the outer coil spring has been compressed. Compression of the second coil spring occurs as a door is opened beyond the 90.degree. position. The door may be held in one of two dwell positions corresponding to the cam surfaces on the movable cam member.
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