Oscillator for a timepiece

Details Oscillator for a timepiece Oscillator for a timepiece

1976-10-20

1977-10-04

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310370, H01L 4104

Patent

active

RE0294292

ABSTRACT:
An improved, compact, impact-resistant quartz crystal oscillator is provided for a timepiece. The oscillator comprises a substantially flat hermetically sealed envelope, a terminal tag provided with a contact pin fixedly mounted in the envelope, and a support therefor comprising a substantially annular support member provided with an annular rib on the periphery thereof defined between opposed elbows therein. One of the elbows provides a groove seat registered with the periphery of an aperture provided in the oscillator envelope. The other elbow provides a groove seat for a bifurcated crystal mounting plate support having elastic characteristics. The mounting plate is resilient in the vibrating direction of the crystal and perpendicularly thereto. Mounted in the oscillator envelope in substantial alignment with weighted tine ends of the crystal is a pair of opposed dampers which enhance the impact-resistance characteristics of the oscillator. Also mounted in the oscillator envelope is a ground pin for preventing a short-circuit thereof.

REFERENCES:
patent: 2666196 (1954-01-01), Kinsley et al.
patent: 3501654 (1970-03-01), Humphries
patent: 3518470 (1970-06-01), Lungo
patent: 3697766 (1972-10-01), Ganter et al.
patent: 3697789 (1972-10-01), Kato et al.
patent: 3710040 (1973-01-01), Swinehart
patent: 3795831 (1974-03-01), Fujita

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