Two-state chronograph with switching means

Details Two-state chronograph with switching means Two-state chronograph with switching means

2003-08-26

2008-11-04

Miska, Vit W. (Department: 2833)

Horology: time measuring systems or devices

Time interval

Mechanical stop time type

C368S110000

Reexamination Certificate

active

07445374

ABSTRACT:
The invention concerns a chronograph watch movement, comprising a chronograph mechanism, including: a chronograph gear-train comprising first (40) and second (38) wheels completing a revolution in sixty seconds and a revolution in a fraction of an hour respectively and arranged in the center of the movement, a control device (48) for starting and stopping the rotation of the chronograph gear-train, and a reset device (50). In said movement, the chronograph mechanism further comprises switching means designed such that, upon activation, they connect the second wheel (38) of the chronograph gear-train to a finishing mobile, so that the display means borne by the second wheel display the current time unit equivalent to that of the measured time.

REFERENCES:
patent: 3903686 (1975-09-01), Burki
patent: 4364669 (1982-12-01), Thoenig et al.
patent: 4389122 (1983-06-01), Dubois et al.
patent: 4588305 (1986-05-01), Piguet et al.
patent: 4748603 (1988-05-01), Ray et al.
patent: 5305290 (1994-04-01), Yoo
patent: 6570823 (2003-05-01), Gilomen et al.
patent: 7232254 (2007-06-01), Forsey et al.
patent: 2001/0043512 (2001-11-01), Igarashi et al.
patent: 1473 (1889-10-01), None
patent: 689 028 (1998-07-01), None
patent: 707 768 (1954-04-01), None

Affiliated with

Also associated with

Rating

Two-state chronograph with switching means does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Two-state chronograph with switching means, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-state chronograph with switching means will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4021022