Horology: time measuring systems or devices – Regulating means – For setting
Patent
1987-04-03
1989-01-24
Roskoski, Bernard
Horology: time measuring systems or devices
Regulating means
For setting
368321, G04B 2702, G04B 2900
Patent
active
048005452
ABSTRACT:
An electronic wristwatch includes an electronic circuit such as a lead frame with extending conductive strips providing a first battery contact terminal and switch contact terminal for operating and setting the wristwatch. A multipurpose switch actuator makes continuous electrical contact between the wristwatch battery and the first contact terminal, and makes selective switching contact with the second contact terminal when actuated by a push-pull detented stem. The stem is removable when twisted using a tool so as to unseat the detent spring, so that it can be pulled from the watch frame, and is also reinsertable without disassembling the watch. The switch actuator serves various other functions, including spring biasing of the stem detent and holding the electronic circuit lead frame in the watch frame.
REFERENCES:
patent: 3377796 (1968-04-01), Rogers
patent: 3623315 (1971-11-01), Christe
patent: 3707840 (1973-01-01), Miyasaka
patent: 3975896 (1976-08-01), Kasama
patent: 40-34553 (1977-07-01), Wuthlich
patent: 4104866 (1978-08-01), Chappatte
patent: 4363554 (1982-12-01), Schaffner et al.
patent: 4408896 (1983-10-01), Ikegami
Kaulins Edward
Wuthrich Paul
Crutcher William C.
Roskoski Bernard
Timex Corporation
LandOfFree
Removable stem and switch actuator for electronic wristwatch does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Removable stem and switch actuator for electronic wristwatch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Removable stem and switch actuator for electronic wristwatch will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-423227