Supporting structure for a thickness-shear type crystal oscillat

Details Supporting structure for a thickness-shear type crystal oscillat Supporting structure for a thickness-shear type crystal oscillat

1978-01-05

1980-11-18

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310353, H01L 4108

Patent

active

042348110

ABSTRACT:
A supporting structure for a thickness-shear type crystal oscillator for watches which has an excellent resistance to shocks, which is very compact in construction and which can support not only an annular crystal piece but also support a rectangular crystal piece is disclosed. The supporting structure comprises a supporting frame which is provided at its opposed inner periphery with tongues adapted to be engaged with corresponding notches provided on opposed end portions of a crystal piece, respectively.

REFERENCES:
patent: 2002167 (1935-05-01), Bechmann
patent: 2699508 (1955-01-01), Fastenau, Jr.
patent: 3988621 (1976-10-01), Nakayama et al.
patent: 4079281 (1978-03-01), Nakayama et al.

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