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GB1350594A - Sharpening cutting edges - Google Patents

Sharpening cutting edges

Info

Publication number
GB1350594A
GB1350594A GB550870A GB1350594DA GB1350594A GB 1350594 A GB1350594 A GB 1350594A GB 550870 A GB550870 A GB 550870A GB 1350594D A GB1350594D A GB 1350594DA GB 1350594 A GB1350594 A GB 1350594A
Authority
GB
United Kingdom
Prior art keywords
blade
chromium
sharpening
degrees
coated
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
Application number
GB550870A
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 Industries Ltd
Original Assignee
Gillette Industries Ltd
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
Application filed by Gillette Industries Ltd filed Critical Gillette Industries Ltd
Publication of GB1350594A publication Critical patent/GB1350594A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
    • B23P15/40—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools shearing tools
    • B23P15/403—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools shearing tools razor blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
    • B24B3/48—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of razor blades or razors
    • 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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F4/00—Processes for removing metallic material from surfaces, not provided for in group C23F1/00 or C23F3/00

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Surgical Instruments (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

1350594 Sputter etching; making blades, knives and needles GILLETTE INDUSTRIES Ltd 4 May 1971 [5 Feb 1970] 5508/70 Headings B3V and B3A [Also in Divisions B4 and G2] A cutting edge of a razor blade, knife, scalpel or hypodermic needle is sharpened by sputter etching. In the embodiment described, a layer of 100 Š to 1 micron in thickness is removed from the cutting edge of a stainless steel razor blade to form a facet c having a length of 400 nm. and an included wedge angle of 45-55 degrees. The included wedge angle 0 of the remainder of the blade is 20-30 degrees. Prior to sharpening, the blade may be coated with a chromium-platinum alloy or chromium metal of 100 nm. thickness applied by sputtering. After the sharpening step, the blade may be coated with fluorocarbon and/or chromium, a chromium-platinum alloy, an oxide, a nitrile or a carbide.
GB550870A 1970-02-05 1970-02-05 Sharpening cutting edges Expired GB1350594A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB550870 1970-02-05

Publications (1)

Publication Number Publication Date
GB1350594A true GB1350594A (en) 1974-04-18

Family

ID=9797539

Family Applications (1)

Application Number Title Priority Date Filing Date
GB550870A Expired GB1350594A (en) 1970-02-05 1970-02-05 Sharpening cutting edges

Country Status (1)

Country Link
GB (1) GB1350594A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58161994A (en) * 1982-03-23 1983-09-26 Norio Taniguchi Working method of diamond tool having sharp pointed end
GB2130955A (en) * 1982-11-19 1984-06-13 Gillette Co Razor blades
EP0532501A1 (en) * 1990-06-08 1993-03-24 Gillette Co Razor blade technology.
US5669144A (en) * 1991-11-15 1997-09-23 The Gillette Company Razor blade technology
WO1999037437A1 (en) * 1998-01-27 1999-07-29 Peter Gluche Diamond cutting tool
US6077572A (en) * 1997-06-18 2000-06-20 Northeastern University Method of coating edges with diamond-like carbon
US7037175B1 (en) 2004-10-19 2006-05-02 Cabot Microelectronics Corporation Method of sharpening cutting edges
WO2013010072A1 (en) * 2011-07-14 2013-01-17 The Gillette Company Razor blade
US9180599B2 (en) 2004-09-08 2015-11-10 Bic-Violex S.A. Method of deposition of a layer on a razor blade edge and razor blade
EP2233258A4 (en) * 2007-12-27 2016-05-18 Shinmaywa Ind Ltd Blade member, and edge working apparatus for the blade member

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58161994A (en) * 1982-03-23 1983-09-26 Norio Taniguchi Working method of diamond tool having sharp pointed end
GB2130955A (en) * 1982-11-19 1984-06-13 Gillette Co Razor blades
EP0532501A1 (en) * 1990-06-08 1993-03-24 Gillette Co Razor blade technology.
EP0532501A4 (en) * 1990-06-08 1993-08-25 The Gillette Company Razor blade technology
US5669144A (en) * 1991-11-15 1997-09-23 The Gillette Company Razor blade technology
US6077572A (en) * 1997-06-18 2000-06-20 Northeastern University Method of coating edges with diamond-like carbon
WO1999037437A1 (en) * 1998-01-27 1999-07-29 Peter Gluche Diamond cutting tool
US6599178B1 (en) 1998-01-27 2003-07-29 Gfd Gesellschaft Fur Diamantprodukte Mbh Diamond cutting tool
US9180599B2 (en) 2004-09-08 2015-11-10 Bic-Violex S.A. Method of deposition of a layer on a razor blade edge and razor blade
US7037175B1 (en) 2004-10-19 2006-05-02 Cabot Microelectronics Corporation Method of sharpening cutting edges
EP2233258A4 (en) * 2007-12-27 2016-05-18 Shinmaywa Ind Ltd Blade member, and edge working apparatus for the blade member
WO2013010072A1 (en) * 2011-07-14 2013-01-17 The Gillette Company Razor blade
RU2567169C2 (en) * 2011-07-14 2015-11-10 Дзе Жиллетт Компани Razor blade
US10549438B2 (en) 2011-07-14 2020-02-04 The Gillette Company Llc Razor blades having a wide facet angle
US11766797B2 (en) 2011-07-14 2023-09-26 The Gillette Company Llc Razor blades having a wide facet angle

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee