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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physical Vapour Deposition (AREA)
  • Dry Shavers And Clippers (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Chemical Vapour Deposition (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)

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 (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993000204A1 (en) * 1991-06-24 1993-01-07 The Gillette Company Improvements in or relating to razor blades
AU2392295A (en) * 1994-04-25 1995-11-16 Gillette Company, The Amorphous diamond coating of blades
DE69610576T2 (en) * 1995-05-19 2001-05-31 Matsushita Electric Works, Ltd. Electric shaver cutting unit
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
JP2004138128A (en) 2002-10-16 2004-05-13 Nissan Motor Co Ltd Sliding members for automobile engines
US6969198B2 (en) 2002-11-06 2005-11-29 Nissan Motor Co., Ltd. Low-friction sliding mechanism
JP3891433B2 (en) 2003-04-15 2007-03-14 日産自動車株式会社 Fuel injection valve
EP1479946B1 (en) 2003-05-23 2012-12-19 Nissan Motor Co., Ltd. Piston for internal combustion engine
JP2004360649A (en) 2003-06-06 2004-12-24 Nissan Motor Co Ltd Engine piston pin
JP4863152B2 (en) 2003-07-31 2012-01-25 日産自動車株式会社 gear
WO2005014761A2 (en) 2003-08-06 2005-02-17 Nissan Motor Co., Ltd. Low-friction sliding mechanism, low-friction agent composition and method of friction reduction
JP2005054617A (en) 2003-08-08 2005-03-03 Nissan Motor Co Ltd Valve mechanism
JP4973971B2 (en) 2003-08-08 2012-07-11 日産自動車株式会社 Sliding member
DE602004008547T2 (en) 2003-08-13 2008-05-21 Nissan Motor Co., Ltd., Yokohama Structure for connecting a piston to a crankshaft
JP4117553B2 (en) 2003-08-13 2008-07-16 日産自動車株式会社 Chain drive
JP4539205B2 (en) 2003-08-21 2010-09-08 日産自動車株式会社 Refrigerant compressor
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
US11230024B2 (en) 2014-12-22 2022-01-25 Bic-Violex Sa Razor blade
EP3616800B1 (en) * 2018-08-31 2022-11-09 BIC Violex Single Member S.A. Thinning of razor blade coatings
EP4135951A1 (en) * 2020-04-16 2023-02-22 The Gillette Company LLC Multi-layer coatings for a razor blade
AU2021257863B2 (en) 2020-04-16 2024-10-10 The Gillette Company Llc Razor cartridge
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
US3761374A (en) * 1971-07-09 1973-09-25 Gillette Co Process 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
CA2102222C (en) 1998-08-25
KR100241239B1 (en) 2000-03-02
EG19582A (en) 1999-05-31
CN1068058A (en) 1993-01-20
RU2108234C1 (en) 1998-04-10
ES2143473T3 (en) 2000-05-16
CN1039527C (en) 1998-08-19
EP0582676A1 (en) 1994-02-16
MX9201910A (en) 1992-11-01
AU2184292A (en) 1992-12-21
CZ288085B6 (en) 2001-04-11
TW221976B (en) 1994-04-01
DE69230822T2 (en) 2000-12-07
EP0582676B1 (en) 2000-03-22
CA2102222A1 (en) 1992-10-27
EP0582676A4 (en) 1994-07-06
JP3439761B2 (en) 2003-08-25
HUT69255A (en) 1995-08-28
AU666659B2 (en) 1996-02-22
WO1992019425A2 (en) 1992-11-12
WO1992019425A3 (en) 1993-01-21
MY107736A (en) 1996-05-30
TR26981A (en) 1994-09-12
CZ227593A3 (en) 1994-03-16
JPH06507100A (en) 1994-08-11
DE69230822D1 (en) 2000-04-27

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Legal Events

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