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:
Jun. 28, 2011
Filed:
Jul. 25, 2007
John Madeira, Assonet, MA (US);
Arutiun Papken Ehiasarian, Sheffield, GB;
Papken Ehiasar Hovsepian, Sheffield, GB;
Krassimir Grigorov Marchev, Sudbury, MA (US);
Neville Sonnenberg, Newton, MA (US);
John Madeira, Assonet, MA (US);
Arutiun Papken Ehiasarian, Sheffield, GB;
Papken Ehiasar Hovsepian, Sheffield, GB;
Krassimir Grigorov Marchev, Sudbury, MA (US);
Neville Sonnenberg, Newton, MA (US);
The Gillette Company, Boston, MA (US);
Abstract
The present invention relates to a process for forming a razor blade. The process includes the steps of: a) providing a substrate, b) forming a wedge-shaped sharpened edge on the substrate that has an included angle of less than thirty degrees and a tip radius of less than 1,000 angstroms, c) placing the substrate in a vacuum chamber, d) placing a first solid target in the vacuum chamber, e) providing a gas to be ionized in the vacuum chamber, and f) generating ions from the first solid target by applying a negative voltage to the first solid target in pulses, the ions forming a thin film coating on the wedge-shaped sharpened edge on the substrate.