Horology: time measuring systems or devices – Electrical time base – For reciprocating or oscillating element
Reexamination Certificate
2006-03-21
2006-03-21
Cuneo, Kamand (Department: 2841)
Horology: time measuring systems or devices
Electrical time base
For reciprocating or oscillating element
C127S070000
Reexamination Certificate
active
07016265
ABSTRACT:
There is disclosed a timepiece having a mechanical clockwork-movement (10) driven by a barrel spring (14) and provided with a mechanical regulator, with a balance and a balance spring, which is associated, via electromagnetic coupling, with an electronic regulator driven by a quartz resonator. The rim of the balance (13) balance is provided with at least one pair of permanent magnets (38, 39). The electronic regulator includes a fixed coil (12) arranged for cooperating with said magnets via electromagnetic coupling, a rectifier (58) provided with at least one capacitor, and a circuit for enslaving the frequency of the mechanical regulator to the oscillator frequency by braking obtained by briefly short-circuiting the coil. In order to use a mechanical movement of a common type, in which only the balance is altered, the coil (12) is located on the side of the balance-cock (23) with respect to the balance rim. The pair of magnets (38, 39) is covered by a plate of magnetic material in order to close field lines on the side of the plate. Apart from the coil, all of the rest of the electronic module (11) is located outside the mechanical movement.
REFERENCES:
patent: 3487629 (1970-01-01), Takamune et al.
patent: 3653199 (1972-04-01), Inoki et al.
patent: 3670492 (1972-06-01), Takamune et al
patent: 3798521 (1974-03-01), Berney
patent: 3937001 (1976-02-01), Berney
patent: 5517469 (1996-05-01), Wiget
patent: 5699322 (1997-12-01), Born
patent: 5740131 (1998-04-01), Bernasconi
patent: 5751666 (1998-05-01), Farine et al.
patent: 5835456 (1998-11-01), Farine et al.
patent: 6023446 (2000-02-01), Farine et al.
patent: 6113259 (2000-09-01), Farine et al.
patent: 6194862 (2001-02-01), Hara
patent: 597 636 (1978-04-01), None
patent: 3903706 (1989-08-01), None
patent: 806 710 (1997-11-01), None
patent: 1 093 036 (2001-04-01), None
patent: 1 143 307 (2001-10-01), None
patent: 1 178 372 (2002-02-01), None
patent: 926 419 (1963-05-01), None
European Search Report, completed May 17, 2004.
Born Jean-Jacques
Farine Pierre-Andre
Asulab S.A.
Cuneo Kamand
Griffin & Szipl, P.C.
Phan Thanh S.
LandOfFree
Timepiece having a mechanical movement associated with an... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Timepiece having a mechanical movement associated with an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Timepiece having a mechanical movement associated with an... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3579320