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:
May. 16, 2000
Filed:
Oct. 10, 1997
Akihiro Sato, Tokai, JP;
Hoshizaki Denki Kabushiki Kaisha, Toyoake, JP;
Abstract
A manufacturing method of a rotary shaft having a body portion and a pair of coaxial journals integral with opposite ends of the body portion, wherein a hollow journal base metal is prepared separately from the body portion of the rotary shaft for providing at least one of the coaxial journals of the rotary shaft, a layer of antiabrasive and anticorrosive alloy is formed on a cylindrical surface of the hollow journal base metal by build up welding or hard facing, and the hollow journal base metal is connected at one end thereof with the corresponding one end of the body portion of the rotary shaft by friction welding.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile