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. 17, 2019
Filed:
May. 15, 2018
Applicant:
Edgewell Personal Care Brands Llc, Chesterfield, MO (US);
Inventors:
Assignee:
Edgewell Personal Care Brands, LLC, Chesterfield, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 53/64 (2006.01); B21D 5/04 (2006.01); B26B 21/40 (2006.01); B26B 21/56 (2006.01); B23P 15/44 (2006.01);
U.S. Cl.
CPC ...
B21D 53/645 (2013.01); B21D 5/042 (2013.01); B23P 15/44 (2013.01); B26B 21/4075 (2013.01); B26B 21/565 (2013.01);
Abstract
A method for making a bent razor blade is disclosed. The method includes: providing an elongated strip of stainless steel that can be 0.076 mm thick; hardening the strip; providing a cutting edge along an edge of the strip and providing coating(s) on the cutting edge. The stainless steel has a carbon content less than 0.60% and preferably between 0.45% and 0.55% by weight. The strip is separated lengthwise into discrete razor blades. The bent portion of the razor blade is then formed using a swivel bending process.