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:
Jan. 09, 2018
Filed:
Nov. 08, 2013
Hitachi Metals, Ltd., Minato-ku, Tokyo, JP;
Kenichiro Shimizu, Kitakyushu, JP;
Norio Kumagai, Kitakyushu, JP;
Hidefumi Hisanabe, Kitakyushu, JP;
HITACHI METALS, LTD., Tokyo, JP;
Abstract
A method for repairing a die-casting sleeve comprising a ceramic-made inner cylinder shrink-fit in a metal-made outer cylinder, comprising the steps of detaching the used inner cylinder from the outer cylinder by heating; forming a diameter-increasing layer on a peripheral surface of the outer cylinder before or after shrink-fitting a new inner cylinder in the outer cylinder; assembling a new inner cylinder in the outer cylinder; and then machining the diameter-increasing layer to a cylindrical shape.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile