ATE190892T1 - RAZOR BLADE - Google Patents

RAZOR BLADE

Info

Publication number
ATE190892T1
ATE190892T1 AT92913377T AT92913377T ATE190892T1 AT E190892 T1 ATE190892 T1 AT E190892T1 AT 92913377 T AT92913377 T AT 92913377T AT 92913377 T AT92913377 T AT 92913377T AT E190892 T1 ATE190892 T1 AT E190892T1
Authority
AT
Austria
Prior art keywords
wedge
angstroms
less
razor blade
interlayer
Prior art date
Application number
AT92913377T
Other languages
German (de)
Inventor
Manohar S Grewel
Chong-Ping P Chou
Steve S Hahn
John Madeira
Original Assignee
Gillette Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/759,812 external-priority patent/US5142785A/en
Application filed by Gillette Co filed Critical Gillette Co
Application granted granted Critical
Publication of ATE190892T1 publication Critical patent/ATE190892T1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/54—Razor-blades
    • B26B21/58—Razor-blades characterised by the material
    • B26B21/60—Razor-blades characterised by the material by the coating material

Abstract

The razor blade comprises a substrate on which is formed a wedge shaped sharpened edge. The wedge has an an included angle of less than thirty degrees and a tip radius of less than 1200 angstroms. An interlayer of material, chosen from the group of molybdenum, nickel, niobium, silicon, silicon carbide, tantalum, vanadium and their alloys, is deposited on the wedge in a thickness less than 500 angstroms. A layer of diamond or diamond like carbon is deposited on the interlayer. This final layer has a thickness of at least 1200 angstroms on the wedge flanks to a tip radius of 40 microns.
AT92913377T 1991-04-26 1992-04-22 RAZOR BLADE ATE190892T1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US69201091A 1991-04-26 1991-04-26
US07/759,812 US5142785A (en) 1991-04-26 1991-08-26 Razor technology
US83525192A 1992-02-13 1992-02-13
PCT/US1992/003330 WO1992019425A2 (en) 1991-04-26 1992-04-22 Improvements in or relating to razor blades

Publications (1)

Publication Number Publication Date
ATE190892T1 true ATE190892T1 (en) 2000-04-15

Family

ID=27418553

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92913377T ATE190892T1 (en) 1991-04-26 1992-04-22 RAZOR BLADE

Country Status (18)

Country Link
EP (1) EP0582676B1 (en)
JP (1) JP3439761B2 (en)
KR (1) KR100241239B1 (en)
CN (1) CN1039527C (en)
AT (1) ATE190892T1 (en)
AU (1) AU666659B2 (en)
CA (1) CA2102222C (en)
CZ (1) CZ288085B6 (en)
DE (1) DE69230822T2 (en)
EG (1) EG19582A (en)
ES (1) ES2143473T3 (en)
HU (1) HUT69255A (en)
MX (1) MX9201910A (en)
MY (1) MY107736A (en)
RU (1) RU2108234C1 (en)
TR (1) TR26981A (en)
TW (1) TW221976B (en)
WO (1) WO1992019425A2 (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100245979B1 (en) * 1991-06-24 2000-05-01 도날 비. 토빈 Razor blade and process for forming a razor blade
CZ293994B6 (en) * 1994-04-25 2004-09-15 The Gillette Company Razor blade, process for its manufacture and shaving unit
EP0743144B1 (en) * 1995-05-19 2000-10-11 Matsushita Electric Works, Ltd. Cutter combination for an electric shaver
JP3555844B2 (en) 1999-04-09 2004-08-18 三宅 正二郎 Sliding member and manufacturing method thereof
JP5212416B2 (en) * 2000-02-25 2013-06-19 住友電気工業株式会社 Amorphous carbon coated member
US6684513B1 (en) 2000-02-29 2004-02-03 The Gillette Company Razor blade technology
US6969198B2 (en) 2002-11-06 2005-11-29 Nissan Motor Co., Ltd. Low-friction sliding mechanism
JP4863152B2 (en) 2003-07-31 2012-01-25 日産自動車株式会社 gear
CN101760286B (en) 2003-08-06 2013-03-20 日产自动车株式会社 Low-friction sliding mechanism, low friction agent composition and method for reducing friction
JP4973971B2 (en) 2003-08-08 2012-07-11 日産自動車株式会社 Sliding member
US7771821B2 (en) 2003-08-21 2010-08-10 Nissan Motor Co., Ltd. Low-friction sliding member and low-friction sliding mechanism using same
EP1508611B1 (en) 2003-08-22 2019-04-17 Nissan Motor Co., Ltd. Transmission comprising low-friction sliding members and transmission oil therefor
US7673541B2 (en) 2004-06-03 2010-03-09 The Gillette Company Colored razor blades
US7284461B2 (en) 2004-12-16 2007-10-23 The Gillette Company Colored razor blades
TWI410507B (en) * 2005-12-23 2013-10-01 Hon Hai Prec Ind Co Ltd Magnetic wear resistance film and method for fabricating the same
US8011104B2 (en) 2006-04-10 2011-09-06 The Gillette Company Cutting members for shaving razors
US7966909B2 (en) * 2007-07-25 2011-06-28 The Gillette Company Process of forming a razor blade
US20130014395A1 (en) * 2011-07-14 2013-01-17 Ashok Bakul Patel Razor blades having a large tip radius
US20130031794A1 (en) 2011-08-05 2013-02-07 Duff Jr Ronald Richard RAZOR BLADES WITH ALUMINUM MAGNESIUM BORIDE (AlMgB14)-BASED COATINGS
US9808944B2 (en) * 2014-06-17 2017-11-07 The Gillette Company Llc Methods of manufacturing silicon blades for shaving razors
WO2016015771A1 (en) * 2014-07-31 2016-02-04 Bic-Violex Sa Razor blade coating
CN111941475B (en) 2014-12-22 2022-05-24 比克-维尔莱克 Shaving blade
EP3616800B1 (en) * 2018-08-31 2022-11-09 BIC Violex Single Member S.A. Thinning of razor blade coatings
CN112157817B (en) * 2020-06-05 2022-04-05 新蔚来智能科技(山东)有限公司 Assembly type building prefabricated component production line foaming concrete blending system
US20230364818A1 (en) * 2020-10-27 2023-11-16 Dorco Co., Ltd. Razor blade having an asymmetrical edge

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3480483A (en) * 1965-05-06 1969-11-25 Wilkinson Sword Ltd Razor blades and methods of manufacture thereof
US3349488A (en) * 1966-08-09 1967-10-31 Burnie J Craig Razor blades
US3829969A (en) * 1969-07-28 1974-08-20 Gillette Co Cutting tool with alloy coated sharpened edge
US3802078A (en) * 1971-06-07 1974-04-09 P Denes Cutting device and method for making same
US3761372A (en) * 1971-07-09 1973-09-25 Gillette Co Method for producing an improved cutting tool
US4291463A (en) * 1979-12-31 1981-09-29 Warner-Lambert Company Water-soluble shaving aid for razor blades
DE3047888A1 (en) * 1980-12-19 1982-07-15 Philips Patentverwaltung Gmbh, 2000 Hamburg Cutting tools, esp. razor blades - where CVD activated by plasma is used to coat tool with carbon possessing structure similar to diamond
US4933058A (en) * 1986-01-23 1990-06-12 The Gillette Company Formation of hard coatings on cutting edges
JP2580692B2 (en) * 1988-03-28 1997-02-12 三菱マテリアル株式会社 Artificial diamond-coated gold and gold alloy ornaments

Also Published As

Publication number Publication date
CZ227593A3 (en) 1994-03-16
CA2102222A1 (en) 1992-10-27
TR26981A (en) 1994-09-12
EG19582A (en) 1999-05-31
MY107736A (en) 1996-05-30
RU2108234C1 (en) 1998-04-10
MX9201910A (en) 1992-11-01
AU666659B2 (en) 1996-02-22
EP0582676A1 (en) 1994-02-16
AU2184292A (en) 1992-12-21
EP0582676A4 (en) 1994-07-06
CN1068058A (en) 1993-01-20
HUT69255A (en) 1995-08-28
KR100241239B1 (en) 2000-03-02
JP3439761B2 (en) 2003-08-25
DE69230822D1 (en) 2000-04-27
ES2143473T3 (en) 2000-05-16
JPH06507100A (en) 1994-08-11
WO1992019425A3 (en) 1993-01-21
DE69230822T2 (en) 2000-12-07
CN1039527C (en) 1998-08-19
TW221976B (en) 1994-04-01
CZ288085B6 (en) 2001-04-11
WO1992019425A2 (en) 1992-11-12
CA2102222C (en) 1998-08-25
EP0582676B1 (en) 2000-03-22

Similar Documents

Publication Publication Date Title
DE69230822T2 (en) RAZOR BLADE
RU93057879A (en) METHOD OF MAKING SHAVE BLADE, SHAVE BLADE AND SHAVING DEVICE
JP3611853B2 (en) Cemented carbide with a binder phase rich surface area and improved edge toughness strength
US4724169A (en) Method of producing multilayer coatings on a substrate
EP0905419A3 (en) Piston ring
AU2001243238A1 (en) Scalpel blade having high sharpness and toughness
CA2111343A1 (en) Improvements in or Relating to Razor Blades
DE3047888A1 (en) Cutting tools, esp. razor blades - where CVD activated by plasma is used to coat tool with carbon possessing structure similar to diamond
EP0846784A3 (en) Coated tool and method of manufacturing the same
AU738778B2 (en) Improved blade edge
SE9203024D0 (en) PINNFRAESVERKTYG
TH14041EX (en) Improvements related to the razor blades of the shaver.
JPS56166370A (en) Surface coated tool member of superior abrasion resistance and corrosion resistance
JP2617326B2 (en) Drill
JPS6487202A (en) Woody system material and cutting tool for said similar property material
TH98825B (en) The amorphous diamond coating of the blade
TH25685A (en) The amorphous diamond coating of the blade
DE3124104A1 (en) Drill and milling cutter preferably for machining printed circuits as well as other materials
JPH07276601A (en) Doctor blade for gravure printing
Bovkun Study of the Hardening of Steels During Localized Electric Spark Deposition of Carbides of the Transition Metals
RU93058639A (en) METHOD OF MANUFACTURING BLADKS FOR SHAVING, BLADES FOR SHAVING, SHAWED BLOCK
MX9605052A (en) Amorphous diamond coating of blades.
JPH0112958Y2 (en)
JPS63116852A (en) Doctor blade
Yoshimura et al. Surface-Coated Cutting Member

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties