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:
Aug. 12, 2014
Filed:
Sep. 13, 2011
Hiroki Uchiyama, Chiba, JP;
Matsuo Kishi, Chiba, JP;
Takashi Niwa, Chiba, JP;
Masayuki Koda, Chiba, JP;
Miei Sato, Chiba, JP;
Hiroki Uchiyama, Chiba, JP;
Matsuo Kishi, Chiba, JP;
Takashi Niwa, Chiba, JP;
Masayuki Koda, Chiba, JP;
Miei Sato, Chiba, JP;
Seiko Instruments Inc., , JP;
Abstract
A detent escapement for a mechanical timepiece includes an escape wheel, a balance mounted for undergoing oscillation movement about a balance staff, a blade and an actuating spring. The balance has an unlocking stone and has an impulse jewel for contacting a wheel tooth of the escape wheel. The blade has a locking stone for contacting the wheel tooth of the escape wheel and is supported for undergoing movement in approaching and separating directions relative to the escape wheel. The actuating spring is configured to contact the unlocking stone and is mounted for undergoing elastic deformation along the approaching and separating directions with respect to the blade. An adjustment mechanism adjusts a projecting amount of a spring tip portion of the actuating spring from a blade tip portion of the blade.