Timepiece with switch operable by pressing the timepiece glass

Details Timepiece with switch operable by pressing the timepiece glass Timepiece with switch operable by pressing the timepiece glass

1996-11-25

1998-04-21

Miska, Vit W.

Horology: time measuring systems or devices

Chronological

With manually actuated display

368224, 368296, G04C 1700, G04B 1900

Patent

active

057425647

ABSTRACT:
A timepiece, such as a wristwatch, includes a casing, a carrier disc disposed in the casing, a glass mounted elastically to the casing in front of the carrier disc, and control switches in the form of piezoelectric sensors each sandwiched between an outer edge of the glass and a forwardly facing edge of the carrier disc. The sensors are electrically connected to an electrical control circuit of the timepiece and are actuable in response to being compressed by a rearward pressure applied to the outer edge of the glass.

REFERENCES:
patent: 4064688 (1977-12-01), Sasaki et al.
patent: 4147929 (1979-04-01), Sasaki et al.
patent: 4247115 (1981-01-01), Hatuse et al.
patent: 5253226 (1993-10-01), Ganter
patent: 5453960 (1995-09-01), Teres et al.
patent: 5559761 (1996-09-01), Frenkel et al.

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