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:
Feb. 14, 2023
Filed:
Jul. 28, 2016
Hangzhou Great Star Industrial Co., Ltd., Hangzhou, CN;
Hangzhou Great Star Tools Co., Ltd., Hangzhou, CN;
Weiyi Wang, Hangzhou, CN;
Hangzhou Great Star Industrial Co., Ltd., Hangzhou, CN;
Hangzhou Great Star Tools Co., Ltd., Hangzhou, CN;
Abstract
A method of manufacturing a cutting member include cutting a first metal material to form a first portion of the cutting member; cutting second metal material to form a second portion of the cutting member, wherein a first edge of the second portion has at least two line segments, a curve formed by the at least two line segments being mathematically continuously differentiable; welding the first portion and the second portion together; raising the cutting member blank to a first temperature at a first rate and holding raising the cutting member blank from the first temperature to a second temperature at a second rate lower than the first rate and holding, and raising the cutting member blank from the second temperature to a third temperature at a third rate not higher than the second rate and holding.