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.

Date of Patent:
Oct. 10, 2017

Filed:

May. 31, 2016
Applicant:

Nidec Sankyo Corporation, Suwa-gun, Nagano, JP;

Inventors:

Seiichiro Noritake, Nagano, JP;

Shunji Saito, Nagano, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 31/04 (2006.01); F16K 31/53 (2006.01); F16K 1/20 (2006.01); F25D 17/04 (2006.01);
U.S. Cl.
CPC ...
F16K 31/535 (2013.01); F16K 1/2007 (2013.01); F16K 31/043 (2013.01); F25D 17/045 (2013.01);
Abstract

A damper device may include a baffle to open/close an opening part; a motor; and a gear train connecting the motor and the baffle and including a partially toothless gear and a sector gear. The partially toothless gear may include an outer peripheral part so as to have an outer peripheral face curved along a tooth tip circle of the teeth part. The outer peripheral part may include an end face at a midway position of the teeth part in the axial line direction where a length in the axial line direction is shorter than a tooth width of the teeth part. The sector gear may include a first tooth cut out facing the outer peripheral face and configured to enter in to an inner peripheral side of the tooth tip circle. A second tooth disposed adjacent to the first tooth and configured to abut the outer peripheral face.


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