The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 29, 2014
Filed:
Mar. 20, 2012
Eric Goeller, Les Hôpitaux Vieux, FR;
Eric Goeller, Les Hôpitaux Vieux, FR;
Montres Breguet S.A., L'Abbaye, CH;
Abstract
Date mechanism for a timepiece including a movement which daily pivots a lever, comprising a perpetual twelve cam with sectors whose depth depends on the duration of the successive months, completing one revolution per year. The mechanism has a single click and includes a single click finger, hinged to said lever and arranged to cooperate with a thirty-one ratchet wheel which pivots integrally with a first thirty-one snail cam arranged to control a date display means, and a second cam including a radial finger; a countdown mechanism whose position is determined by said second cam, adjusting the number of teeth of said wheel to be activated by said click finger according to the current day and current month; and a means of driving said cam.