Threaded fastener
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United States of America Patent
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-
Nov 29, 2011
Grant Date -
Sep 3, 2009
app pub date -
Feb 27, 2009
filing date -
Feb 29, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A screw-type fastener includes an internal cinching mechanism that physically locks exposed threads of a screw outside a housing after a certain number of turns. The fastener may for example, be affixed to a faceplate of a printed circuit board. The exposed threads may then be rotated to threadably engage corresponding threads of a sub-rack or other enclosure in a manner that prevents movement of the faceplate relative to the enclosure as the screw engages the enclosure. When the internal cinching mechanism is locked, the physical relationship (e.g., distance) between the faceplate and the sub-rack is retained until the fastener is unscrewed.
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