Title:
WEAR-RESISTANT STAINLESS CUTTING ELEMENT OF AN ELECTRIC SHAVER, ELECTRIC SHAVER, AND METHOD OF PRODUCING SUCH A CUTTING ELEMENT
Document Type and Number:
WIPO Patent Application WO2004015159
Kind Code:
A3
Abstract:
Disclosed is a cutting element as used in an electric shaver. Said element is manufactured from maraging or precipitation-hardenable stainless steel with a surface hardened by plasma nitriding. The cutting element is plasma nitriding hardened on all surfaces of the blade, and a plasma nitriding hardened layer comprises a surface top layer of steel supersaturated with nitrogen and a diffusion layer adjoining the top layer with a hardness ranging from the hardness of the top layer to the hardness of the steel before hardening by means of plasma nitriding. Also disclosed is an electric shaver comprising at least one of the above cutting elements, as well as a method of manufacturing a cutting element.
More Like This:
Inventors:
BLAAUW HUBERT S (NL)
DE BEURS HANS (NL)
DE BEURS HANS (NL)
Application Number:
PCT/IB2003/003179
Publication Date:
August 12, 2004
Filing Date:
July 22, 2003
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
BLAAUW HUBERT S (NL)
DE BEURS HANS (NL)
BLAAUW HUBERT S (NL)
DE BEURS HANS (NL)
International Classes:
C23C8/00; C23C8/38; B26B19/00; (IPC1-7): C23C8/00; B26B21/40; B26B21/60; B26B21/58; C23C28/00
Foreign References:
| EP0743144A2 | 1996-11-20 | |||
| US5953969A | 1999-09-21 | |||
| EP1091006A1 | 2001-04-11 | |||
| DE3431330A1 | 1986-03-06 | |||
| EP0506106A1 | 1992-09-30 |
Other References:
MELETIS E I ET AL: "LOW-PRESSURE ION NITRIDING OF ALSL 304 AUSTENITIC STAINLESS STEEL WITH AN INTENSIFIED GLOW DISCHARGE", JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY: PART A, AMERICAN INSTITUTE OF PHYSICS. NEW YORK, US, vol. 11, no. 1, 1993, pages 25 - 33, XP000345530, ISSN: 0734-2101
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 17 5 June 2001 (2001-06-05)
PATENT ABSTRACTS OF JAPAN vol. 010, no. 004 (C - 322) 9 January 1986 (1986-01-09)
LEI M K ET AL: "PLASMA SOURCE ION NITRIDING: A NEW LOW TEMPERATURE, LOW-PRESSURE NITRIDING APPROACH", JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY: PART A, AMERICAN INSTITUTE OF PHYSICS. NEW YORK, US, vol. 13, no. 6, 1 November 1995 (1995-11-01), pages 2986 - 2990, XP000555631, ISSN: 0734-2101
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 06 4 June 2002 (2002-06-04)
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 17 5 June 2001 (2001-06-05)
PATENT ABSTRACTS OF JAPAN vol. 010, no. 004 (C - 322) 9 January 1986 (1986-01-09)
LEI M K ET AL: "PLASMA SOURCE ION NITRIDING: A NEW LOW TEMPERATURE, LOW-PRESSURE NITRIDING APPROACH", JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY: PART A, AMERICAN INSTITUTE OF PHYSICS. NEW YORK, US, vol. 13, no. 6, 1 November 1995 (1995-11-01), pages 2986 - 2990, XP000555631, ISSN: 0734-2101
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 06 4 June 2002 (2002-06-04)
Download PDF: