Dismountable device for supporting a piezoelectric resonator inside a casing
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United States of America Patent
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-
Apr 9, 1991
Grant Date -
N/A
app pub date -
Oct 18, 1989
filing date -
Oct 28, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A supporting device including four independent and identical U-shaped coupling flanges each cooperating with a pair of springs. Each spring is formed of a circular cross section metal wire made of high elastic limit alloy. The set of coupling flanges and springs is symmetrical with respect to two mutually perpendicular axial planes of resonator and with respect to a central plane of the resonator. A cylindrical element is mounted inside the casing in a region of a lateral wall of the housing and has a circular groove on its inner face and located on a center plane parallel to the top and bottom walls of the housing. For each pair of springs cooperating with a coupling flange, one of the springs engages by a first portion into an upper slot formed in a planar rear face of the coupling flange and by a second portion in the circular groove. The inner faces of the coupling flanges rest directly on the edge of the top and bottom faces of the resonator.
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