Watch

Details Watch Watch

1978-11-07

1981-06-02

Truhe, J. V.

Horology: time measuring systems or devices

Signalling means

Time condition responsive

368255, 368288, 368295, G04C 2116, G04B 3700, G04B 3900

Patent

active

042714982

ABSTRACT:
A resilient member for connecting a crystal to a watch casing in which the crystal is used for generating acoustic signals. The member is of generally annular configuration with an inner portion rigidly connected to the circumference of the crystal, an outer peripheral portion connected to a supporting member of the watch casing, and a free portion extending between the inner portion and the outer peripheral portion. The free portion has a width and a thickness which permits flexing in a direction normal to the plane of the crystal so that the crystal can vibrate in a direction normal to its plane and act as an acoustical transmitting member.

REFERENCES:
patent: 3205712 (1965-09-01), Hoff
patent: 3863437 (1975-02-01), Barth et al.

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