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:
Jun. 04, 2019
Filed:
Jan. 17, 2017
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0898 (2013.01);
Abstract
A seal memberwhich seals a gap among a rotating bodyprovided in an opening of a frame body, a blade, and the frame bodyin an end region in an axial direction of the rotating body, the seal memberincluding: a first seal portionwhich comes into contact with the rotating body; a second seal portionwhich comes into contact with the blade; and a third seal portionwhich is constituted by a surface formed in a stair shape and sequentially arranged between the first seal portionand the second seal portionand which is capable of reducing a gap formed between the rotating bodyand the bladedue to rotation of the rotating body