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:
Dec. 10, 2013
Filed:
Jan. 12, 2012
Applicants:
Julien Chaignat, Macolin, CH;
Stefan Rombach, Bienne, CH;
Inventors:
Julien Chaignat, Macolin, CH;
Stefan Rombach, Bienne, CH;
Assignee:
ETA SA Manufacture Horlogère Suisse, Grenchen, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04B 19/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
The annual calendar device carries a date ring () and a drive wheel () for said ring. The drive wheel () carries a mechanism () including a first finger () driving the ring () through one step each day and a second finger () which is inserted, at the end of the months of less than thirty-one days, into the trajectory of the teeth () of the ring () to move said ring forward one additional step. The second finger () is inserted into said trajectory by a kinematic chain () controlled by a toothing () carried by the ring ().