Tourbillon-type timepiece mechanism

Details Tourbillon-type timepiece mechanism Tourbillon-type timepiece mechanism

2005-05-10

2005-05-10

Miska, Vit W. (Department: 2841)

Horology: time measuring systems or devices

Escapements

With oscillating or reciprocating means

C368S142000

Reexamination Certificate

active

06890094

ABSTRACT:
The present invention relates to a tourbillon-type timepiece mechanism, comprising a cage (8-10), means (4) for pivoting this cage on a casing (1) of the timepiece, a kinematic link (3) between the axis of this cage and a motive barrel, a hairspring (13, 16) pivoted at the center of this cage and an escapement mechanism (19, 20) engaged with this hairspring (13, 16), the pinion (20a) of the escape wheel of this escapement mechanism (19, 20) being engaged with a toothing joined to said casing (1), which toothing is borne by a crown gear (21), connected to said casing (1) by an eccentric pivot pin (22a), and by means (22a,22b) serving to immobilize said crown gear (21) relative to said eccentric pivot pin (22a).

REFERENCES:
patent: 5608694 (1997-03-01), Grimm et al.
patent: 5838641 (1998-11-01), Tohkoku et al.
patent: 6402368 (2002-06-01), Grimm et al.
patent: 6749333 (2004-06-01), Scheufele
patent: 1 103 871 (2001-05-01), None

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