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. 04, 2015
Filed:
Jul. 23, 2014
Seiko Instruments Inc., Chiba-shi, Chiba, JP;
SEIKO INSTRUMENTS INC., , JP;
Abstract
An object is to provide an escapement which can improve energy transmission efficiency, a timepiece movement including the escapement, and a timepiece including the timepiece movement. There is provided an escapementincluding an escape wheel, a double rollerthat is disposed in a balancepivotally moving around a balance staff, and a pallet forkthat can pivotally move around a pallet staff. The double rollerincludes a first impulse pinwhich comes into contact with the pallet forkin response to a pivotal movement of the double rollerand causes the pallet forkto pivotally move around the pallet staff, and a second impulse pinwhich can come into contact with tooth portionof the escape wheel. The pallet forkincludes two pallets of an entry palletand an exit pallet