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:
Dec. 11, 2001
Filed:
Dec. 22, 1999
Hermanus S. J. Altena, Drachten, NL;
Maarten Brussee, Drachten, NL;
Foppe Kramer, Drachten, NL;
Johan Pragt, Drachten, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
The invention relates to a method of manufacturing a cutting member (,). According to the method, a single side,of a carrier,of the cutting member is provided with an auxiliary layer (,). The carrier is provided with a cutting edge (,) by means of an electrochemical machining device (,), an electrode (,) of the electrochemical machining device being arranged on a side (,) of the carrier remote from the auxiliary layer. According to the invention, the auxiliary layer is provided as far as the cutting edge to be provided on the carrier, and, after the cutting edge has been provided on the carrier, the auxiliary layer is maintained on the carrier as a layer which is functional for the cutting member. In this manner, the auxiliary layer has a double function and is thus utilized in a better way. In a preferred embodiment, the auxiliary layer mainly comprises SiO,and has a thickness below 200 nm, preferably below 100 nm. In this embodiment, an edge (,) of the auxiliary layer, which is present at the location of the cutting edge of the carrier, constitutes an auxiliary cutting edge or even a main cutting edge of the cutting member, so that the cutting member has improved cutting properties and an improved service life. The cutting member is used in a shaving head (,) according to the invention and in a shaving device (,) according to the invention, which shaving device comprises a shaving head. The shaving head further comprises a manipulator (,) which is arranged near the cutting edge of the cutting member for moving hairs (,) along the cutting edge during cutting. In this manner, the auxiliary layer of the cutting member also is a protective layer protecting against wear, corrosion and providing mechanical resistance.