DE69226640T2 - RAZOR BLADE AND METHOD FOR PRODUCING A RAZOR BLADE - Google Patents

RAZOR BLADE AND METHOD FOR PRODUCING A RAZOR BLADE

Info

Publication number
DE69226640T2
DE69226640T2 DE69226640T DE69226640T DE69226640T2 DE 69226640 T2 DE69226640 T2 DE 69226640T2 DE 69226640 T DE69226640 T DE 69226640T DE 69226640 T DE69226640 T DE 69226640T DE 69226640 T2 DE69226640 T2 DE 69226640T2
Authority
DE
Germany
Prior art keywords
razor blade
tip
less
facets
diamond
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69226640T
Other languages
German (de)
Other versions
DE69226640D1 (en
Inventor
C Parent
John Madeira
Steve Hahn
Chong-Ping Chou
Lamar Brooks
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gillette Co LLC
Original Assignee
Gillette Co LLC
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 US07/719,793 external-priority patent/US5232568A/en
Application filed by Gillette Co LLC filed Critical Gillette Co LLC
Publication of DE69226640D1 publication Critical patent/DE69226640D1/en
Application granted granted Critical
Publication of DE69226640T2 publication Critical patent/DE69226640T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

A razor blade includes a substrate (50) with a wedge-shaped edge at a distance of forty micrometers from the sharpened tip (52), and a layer of diamond or diamond-like material (60) defined by facets (66, 68) that have an included angle of less than seventeen degrees that has a thickness of at least twelve hundred angstroms from the sharpened tip (52) of said substrate (50) to a distance of forty micrometer from the sharpened tip (52), and an ultimate tip defined by facets (62, 64) that have lengths of at least about 0.1 micrometer and define an included angle of at least sixty degrees, and that defines a tip radius of less than about 400 angstroms, an aspect ratio in the range of 1:1-3:1, a hardness of at least thirteen gigapascals and an L5 wet wool felt cutter force of less than 0.8 kilogram.
DE69226640T 1991-06-24 1992-06-11 RAZOR BLADE AND METHOD FOR PRODUCING A RAZOR BLADE Expired - Lifetime DE69226640T2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/719,793 US5232568A (en) 1991-06-24 1991-06-24 Razor technology
US79242791A 1991-11-15 1991-11-15
PCT/US1992/004932 WO1993000204A1 (en) 1991-06-24 1992-06-11 Improvements in or relating to razor blades

Publications (2)

Publication Number Publication Date
DE69226640D1 DE69226640D1 (en) 1998-09-17
DE69226640T2 true DE69226640T2 (en) 1999-03-18

Family

ID=27110143

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69226640T Expired - Lifetime DE69226640T2 (en) 1991-06-24 1992-06-11 RAZOR BLADE AND METHOD FOR PRODUCING A RAZOR BLADE

Country Status (19)

Country Link
EP (1) EP0591339B1 (en)
JP (1) JP3722829B2 (en)
KR (1) KR100245979B1 (en)
CN (1) CN1039793C (en)
AT (1) ATE169547T1 (en)
AU (1) AU667816B2 (en)
CA (1) CA2111343C (en)
CZ (1) CZ286598B6 (en)
DE (1) DE69226640T2 (en)
DK (1) DK0591339T3 (en)
EG (1) EG19616A (en)
ES (1) ES2118821T3 (en)
MA (1) MA22561A1 (en)
MX (1) MX9203147A (en)
MY (1) MY110072A (en)
PL (1) PL170815B1 (en)
TR (1) TR27155A (en)
TW (1) TW215423B (en)
WO (1) WO1993000204A1 (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA928617B (en) * 1991-11-15 1993-05-11 Gillette Co Shaving system.
DE69535068T2 (en) * 1994-04-25 2006-12-28 The Gillette Co., Boston Amorphous diamond coating of blades
US5490329A (en) * 1994-05-17 1996-02-13 The Gillette Company Shaving system
US5693094A (en) 1995-05-09 1997-12-02 Allergan IOL for reducing secondary opacification
US6884262B2 (en) 1998-05-29 2005-04-26 Advanced Medical Optics, Inc. Enhanced intraocular lens for reducing glare
US6468306B1 (en) 1998-05-29 2002-10-22 Advanced Medical Optics, Inc IOL for inhibiting cell growth and reducing glare
US6162249A (en) * 1998-05-29 2000-12-19 Allergan IOI for inhibiting cell growth and reducing glare
EP1058592B1 (en) 1998-12-24 2003-10-01 Koninklijke Philips Electronics N.V. Method of manufacturing a cutting member having an auxiliary layer
US6684513B1 (en) 2000-02-29 2004-02-03 The Gillette Company Razor blade technology
US20050028389A1 (en) * 2001-06-12 2005-02-10 Wort Christopher John Howard Cvd diamond cutting insert
CN1282530C (en) * 2001-07-11 2006-11-01 皇家菲利浦电子有限公司 Cutting member with dual profile tip
US6648741B2 (en) 2002-03-14 2003-11-18 Advanced Medical Optics, Inc. Apparatus for protecting the edge geometry of an intraocular lens during glass bead polishing process
GB0212530D0 (en) * 2002-05-30 2002-07-10 Diamanx Products Ltd Diamond cutting insert
US20050246904A1 (en) * 2002-08-21 2005-11-10 Koninklijke Philips Electronics N.V. Cutting member having a superlattice coating
EP1694252B1 (en) 2003-12-09 2017-08-09 Abbott Medical Optics Inc. Foldable intraocular lens and method of making
US20070186424A1 (en) * 2006-02-10 2007-08-16 Eveready Battery Company, Inc. Multi-layer coating for razor blades
US7882640B2 (en) * 2006-03-29 2011-02-08 The Gillette Company Razor blades and razors
US8011104B2 (en) 2006-04-10 2011-09-06 The Gillette Company Cutting members for shaving razors
US20130014395A1 (en) 2011-07-14 2013-01-17 Ashok Bakul Patel Razor blades having a large tip radius
US20130014396A1 (en) 2011-07-14 2013-01-17 Kenneth James Skrobis Razor blades having a wide facet angle
CN106584525A (en) * 2015-10-20 2017-04-26 余荣恺 Cutter head of hair scissors and manufacturing method of cutter head
EP3372362A1 (en) * 2017-03-08 2018-09-12 BIC-Violex S.A. Razor blade
EP4135952A2 (en) 2020-04-16 2023-02-22 The Gillette Company LLC Coatings for a razor blade
US20210323184A1 (en) 2020-04-16 2021-10-21 The Gillette Company Llc Coatings for a razor blade
WO2021211812A1 (en) 2020-04-16 2021-10-21 The Gillette Company Llc Multi-layer coatings for a razor blade
US20230373120A1 (en) 2022-05-20 2023-11-23 The Gillette Company Llc Method of coating a razor blade
US20230373122A1 (en) 2022-05-20 2023-11-23 The Gillette Company Llc Non-fluorinated organic coating material for a razor blade

Family Cites Families (11)

* 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
BR8307616A (en) * 1982-11-19 1984-10-02 Gillette Co SHAVING BLADES
US4586255A (en) * 1984-10-15 1986-05-06 The Gillette Company Razor blade assembly
US4933058A (en) * 1986-01-23 1990-06-12 The Gillette Company Formation of hard coatings on cutting edges
HUT69255A (en) * 1991-04-26 1995-08-28 Gillette Co Recapped razor blades

Also Published As

Publication number Publication date
EG19616A (en) 1995-07-27
PL170815B1 (en) 1997-01-31
TW215423B (en) 1993-11-01
CA2111343A1 (en) 1993-01-07
ES2118821T3 (en) 1998-10-01
JPH07503377A (en) 1995-04-13
CZ286598B6 (en) 2000-05-17
EP0591339A4 (en) 1994-08-31
AU2192792A (en) 1993-01-25
EP0591339B1 (en) 1998-08-12
KR100245979B1 (en) 2000-05-01
DK0591339T3 (en) 1999-02-15
AU667816B2 (en) 1996-04-18
CN1068990A (en) 1993-02-17
WO1993000204A1 (en) 1993-01-07
JP3722829B2 (en) 2005-11-30
TR27155A (en) 1994-11-09
CZ289093A3 (en) 1995-04-12
DE69226640D1 (en) 1998-09-17
MY110072A (en) 1997-12-31
ATE169547T1 (en) 1998-08-15
EP0591339A1 (en) 1994-04-13
MA22561A1 (en) 1992-12-31
MX9203147A (en) 1993-02-01
CA2111343C (en) 1998-07-28
CN1039793C (en) 1998-09-16

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