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:
Mar. 29, 2022
Filed:
Sep. 28, 2018
Applicant:
Nhk Spring Co., Ltd., Yokohama, JP;
Inventors:
Assignee:
NHK SPRING CO., LTD., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60G 21/055 (2006.01); F16F 1/02 (2006.01); F16F 1/14 (2006.01); B23P 23/04 (2006.01);
U.S. Cl.
CPC ...
B60G 21/055 (2013.01); F16F 1/02 (2013.01); F16F 1/14 (2013.01); B23P 23/04 (2013.01); B60G 2206/012 (2013.01); B60G 2206/72 (2013.01); B60G 2206/80 (2013.01); B60G 2206/8103 (2013.01);
Abstract
A terminal sealed portion is formed on an end portion of a hollow rod made of steel. An enclosed space is formed on an inner side of the hollow rod. At an end of the enclosed space, a terminal gap is formed. A volatile powdered rust inhibitor is supplied in the enclosed space. As the volatile powdered rust inhibitor is vaporized, the enclosed space is turned into a rust-inhibiting atmosphere. As the vaporized component of the volatile powdered rust inhibitor is adsorbed to an inner surface of the enclosed space, an inner surface rust-inhibiting film is formed. The vaporized component also enters inside the terminal gap, and forms a terminal rust-inhibiting film.