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US 4,308,481 AGranted
Damped mounting for a piezoelectrically driven tuning fork resonator
AssigneeMurata Manufacturing Co., Ltd.
InventorsTakeshi Nakamura, Yoshimasa Yamashita
Life of this patent
Estimating the term…
Abstract
A tuning fork resonator device includes a substrate having a recess formed in its one flat surface for receiving a damper made of an electrically conductive rubber and a metal leaf spring mounted on the substrate and being held in contact with the damper. A tuning fork is mounted on the damper through a support which is made of an electrical conductive material so as to electrically connect the tuning fork with the leaf spring.
Claims9
A tuning fork resonator device, comprising:
- a substrate means made of an electrically non-conductive material and having an engaging portion formed in one of its surfaces;
- leaf spring means made of an electrically conductive material and mounted on said substrate means, said leaf spring means having a pressure applying plate portion which overlies a portion of said engaging portion;
- damper means made of an electrically conductive elastic material and engaged by said engaging portion and held in contact with said pressure applying plate portion of said leaf spring means;
- support means made of an electrically conductive material and having a first portion mounted in said damper means and a second portion protruding outwardly from said damper means;
- and
- tuning fork means having a base portion and two vibrating arms extending from said base portion, said base portion being rigidly connected to said second portion of the support means.
3 more elements
Dependencies are inferred from the claim text.