Fasteners and spacer rings therefor
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United States of America Patent
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-
Dec 11, 2012
Grant Date -
Jun 3, 2010
app pub date -
Oct 11, 2007
filing date -
Oct 31, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An axially expanding spacer (10) has respective first and second spacer rings (11,12) with complementary helical ramped faces (16,17) and abutment faces (18,19). By relative rotation of the spacer rings (11,12), the height of the spacer (10), between annular faces (14,15) can be expanded or contracted. Compression springs (20) between the abutment faces (18,19) urge the spacer (10) to its “expanded” configuration.
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