Electro-acoustic device for alarm watch

Details Electro-acoustic device for alarm watch Electro-acoustic device for alarm watch

1979-10-25

1981-03-24

Miska, Vit W.

Horology: time measuring systems or devices

Signalling means

Time condition responsive

G04C 2116

Patent

active

042584329

ABSTRACT:
An electro-acoustic device for an alarm watch includes a lever moved by an oscillating electromagnetic field created by an electromagnet to vibrate a moving element or glass of the watch and produce a sound. The glass is elastically mounted on a sealing ring of the watch. The lever is mounted by one end to the watch and includes a tapered part adjacent the one end which is elastically deformable thereat so that a free end of the lever opposite the one end may vibrate and its fundamental frequency in response to the oscillating electromagnetic field. The free end of the lever carries a stem coupling the lever to the glass and transmitting the oscillating motion of the lever to the glass, which vibrates on the elastic ring to produce the sound.

REFERENCES:
patent: 3577876 (1971-05-01), Spadini
patent: 3732686 (1973-05-01), Zaugg
patent: 3863437 (1975-02-01), Barth et al.
patent: 3974499 (1976-08-01), Shigemori et al.
patent: 4167849 (1979-09-01), Yakahashi

Affiliated with

Also associated with

Rating

Electro-acoustic device for alarm watch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electro-acoustic device for alarm watch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electro-acoustic device for alarm watch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2410533