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:
Sep. 16, 2025
Filed:
Nov. 24, 2021
Applicant:
Nanjing Chervon Industry Co., Ltd., Nanjing, CN;
Inventor:
Haishen Xu, Nanjing, CN;
Assignee:
Nanjing Chervon Industry Co., Ltd., Nanjing, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01D 34/73 (2006.01); A01D 34/69 (2006.01); A01D 101/00 (2006.01);
U.S. Cl.
CPC ...
A01D 34/73 (2013.01); A01D 34/69 (2013.01); A01D 2101/00 (2013.01);
Abstract
A cutting blade is capable of being driven to rotate around a first axis. The cutting blade includes cutting portions comprising cutting edges for cutting and extension portions closer to the first axis relative to the cutting portions. Each of the extension portions comprises an upper surface and a lower surface, at least part of the upper surface is a part of a side surface of a first cone with the first axis as an axis, and at least part of the lower surface is a part of a side surface of a second cone with the first axis as an axis.