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. 08, 2017
Filed:
Sep. 18, 2014
Aisin Seiki Kabushiki Kaisha, Kariya-shi, JP;
Daishi Kobayashi, Kariya, JP;
AISIN SEIKI KABUSHIKI KAISHA, Kariya-shi, JP;
Abstract
A partial surface treatment apparatus includes a first electrode member electrically connected to a treatment object including an outer circumferential surface and a circumferential groove, a second electrode member including an inner circumferential surface, a pair of annular-shaped elastic sealing members configured to seal a clearance between the outer circumferential surface and the inner circumferential surface, an accommodation portion accommodating each of the annular-shaped elastic sealing members, the annular-shaped elastic sealing members are movable in a diameter reduction direction, a pressure applying mechanism supplying a pressurized fluid to the annular-shaped elastic sealing members, the annular-shaped elastic sealing members are in pressure contact with the outer circumferential surface in a case where the annular-shaped elastic sealing members are moved in the diameter reduction direction, and a cutout formed at each of the annular-shaped elastic sealing members to be extended from an outer circumferential side edge portion towards the inner circumferential side.