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:
Jul. 28, 2020
Filed:
May. 17, 2017
Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;
Shigenori Kazama, Kanagawa, JP;
Takeshi Goto, Kanagawa, JP;
Takamitsu Ono, Kanagawa, JP;
Masaaki Iwaya, Kanagawa, JP;
NISSAN MOTOR CO., LTD., Yokohama-shi, JP;
Abstract
A bell cup () of a rotary atomization-type coating device () is provided. This device has a rotary shaft () and a feed tube () inserted in the rotary shaft. The bell cup is fitted to a tip end part of the rotary shaft and has a coating material spreading surface () on an inner surface of the bell cup. The feed tube discharges a coating material to the coating material spreading surface. The coating material spreading surface includes a region extending from a predetermined position on a proximal end side to a distal end edge. The region is constituted of a convex curved surface toward an extension of the rotary shaft. The outermost surface of at least part (B) of the coating material spreading surface is covered by a diamond-like carbon film () free from silicon at least on its outermost surface.