CA2278765A1 - Razor blade and cartridge including same and method of making same - Google Patents

Razor blade and cartridge including same and method of making same Download PDF

Info

Publication number
CA2278765A1
CA2278765A1 CA002278765A CA2278765A CA2278765A1 CA 2278765 A1 CA2278765 A1 CA 2278765A1 CA 002278765 A CA002278765 A CA 002278765A CA 2278765 A CA2278765 A CA 2278765A CA 2278765 A1 CA2278765 A1 CA 2278765A1
Authority
CA
Canada
Prior art keywords
axis
same
length
razor blade
cartridge including
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.)
Granted
Application number
CA002278765A
Other languages
French (fr)
Other versions
CA2278765C (en
Inventor
Steve Syng-Hi Hahn
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
The Gillette Company
Steve Syng-Hi Hahn
The Gillette Company 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
Application filed by The Gillette Company, Steve Syng-Hi Hahn, The Gillette Company Llc filed Critical The Gillette Company
Publication of CA2278765A1 publication Critical patent/CA2278765A1/en
Application granted granted Critical
Publication of CA2278765C publication Critical patent/CA2278765C/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
    • B26B21/56—Razor-blades characterised by the shape
    • B26B21/565—Bent razor blades; Razor blades with bent carriers
    • 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
    • B26B21/56—Razor-blades characterised by the shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/60—Making other particular articles cutlery wares; garden tools or the like
    • B21D53/64—Making other particular articles cutlery wares; garden tools or the like knives; scissors; cutting blades
    • B21D53/645—Making other particular articles cutlery wares; garden tools or the like knives; scissors; cutting blades safety 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

Abstract

A strenghtened blade for a shaving razor including a generally flat blade member having a width along a width axis (W), a length along a transverse length axis (L), and smaller dimensions along a thickness axis (T) that is normal to both the width axis and the length axis, the blade member having a nonlinear front cutting edge (13) defined by a plurality of waves (15) having crests and valleys extending above and below the length axis in a direction that is parallel to the thickness axis.
CA002278765A 1997-02-27 1998-02-26 Razor blade and cartridge including same and method of making same Expired - Lifetime CA2278765C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US80714497A 1997-02-27 1997-02-27
US807,144 1997-02-27
PCT/US1998/003761 WO1998038017A2 (en) 1997-02-27 1998-02-26 Razor blade and cartridge including same and method of making same

Publications (2)

Publication Number Publication Date
CA2278765A1 true CA2278765A1 (en) 1998-09-03
CA2278765C CA2278765C (en) 2004-09-28

Family

ID=25195684

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002278765A Expired - Lifetime CA2278765C (en) 1997-02-27 1998-02-26 Razor blade and cartridge including same and method of making same

Country Status (18)

Country Link
EP (1) EP1011934B1 (en)
JP (1) JP2001513681A (en)
KR (1) KR20000075679A (en)
CN (1) CN1163333C (en)
AR (1) AR011895A1 (en)
AT (1) ATE218087T1 (en)
AU (1) AU6339998A (en)
BR (1) BR9807754A (en)
CA (1) CA2278765C (en)
CO (1) CO4761088A1 (en)
DE (1) DE69805632T2 (en)
ES (1) ES2174420T3 (en)
ID (1) ID22706A (en)
PL (1) PL186434B1 (en)
TR (1) TR199902073T2 (en)
TW (1) TW378173B (en)
WO (1) WO1998038017A2 (en)
ZA (1) ZA981629B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2354474B8 (en) 1999-09-27 2008-01-29 Gillette Co Safety razors
US6449849B1 (en) * 2000-06-29 2002-09-17 Willard Hackerman Shaving razor
US6804886B2 (en) 2000-10-16 2004-10-19 The Gillette Company Safety razors
GB0025339D0 (en) * 2000-10-16 2000-11-29 Gillette Co Safety razors
US20040187644A1 (en) * 2003-02-25 2004-09-30 Eveready Battery Company, Inc. Method for manufacturing a razor blade
US7823272B2 (en) 2006-11-14 2010-11-02 The Gillette Company Systems for producing assemblies
JP2008132002A (en) * 2006-11-27 2008-06-12 Matsushita Electric Works Ltd Razor blade
MX347608B (en) * 2009-04-15 2017-05-04 Bic-Violex Sa * Razor cartridge and mechanical razor comprising such a cartridge.
CN103917342A (en) 2011-10-06 2014-07-09 比克-维尔莱克 Razor head having low shaving angle
US20180297226A1 (en) * 2017-04-17 2018-10-18 Byung Jin Kim Razor blade having wavy cutting edge
DE102018112527A1 (en) * 2018-05-24 2019-11-28 Oliver Hesch A razor blade with at least one cutting edge for its use and the manufacture of such a razor blade

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB445385A (en) * 1935-02-07 1936-04-08 Ever Ready Razor Products Ltd Improvements in or relating to blades for safety razors
DE739561C (en) * 1941-04-27 1944-04-19 Wilhelm Mueller razor blade
GB676089A (en) * 1951-02-16 1952-07-23 Paul Muller Improvements in safety razor blades
US3829969A (en) 1969-07-28 1974-08-20 Gillette Co Cutting tool with alloy coated sharpened edge
US3652443A (en) 1970-08-25 1972-03-28 Gillette Co Deposition apparatus
US3761374A (en) 1971-07-09 1973-09-25 Gillette Co Process for producing an improved cutting tool
US4026016A (en) 1975-05-12 1977-05-31 The Gillette Company Razor blade assembly
US4379219A (en) 1980-04-21 1983-04-05 The Gillette Company Shaving unit and method of manufacture therefor
US4498357A (en) 1982-09-22 1985-02-12 George Makarov Mass accelerator and power converter unit
GB8334310D0 (en) * 1983-12-23 1984-02-01 Gillette Co Razor blades
US4608782A (en) * 1985-05-17 1986-09-02 The Gillette Company Method and apparatus for sharpening razor blades

Also Published As

Publication number Publication date
CN1163333C (en) 2004-08-25
ES2174420T3 (en) 2002-11-01
PL335376A1 (en) 2000-04-25
WO1998038017A3 (en) 1998-12-03
AR011895A1 (en) 2000-09-13
DE69805632T2 (en) 2003-01-30
TW378173B (en) 2000-01-01
BR9807754A (en) 2000-02-22
ATE218087T1 (en) 2002-06-15
JP2001513681A (en) 2001-09-04
EP1011934A2 (en) 2000-06-28
CA2278765C (en) 2004-09-28
CO4761088A1 (en) 1999-04-27
DE69805632D1 (en) 2002-07-04
ID22706A (en) 1999-12-09
WO1998038017A2 (en) 1998-09-03
AU6339998A (en) 1998-09-18
PL186434B1 (en) 2004-01-30
TR199902073T2 (en) 1999-12-21
KR20000075679A (en) 2000-12-26
CN1248935A (en) 2000-03-29
EP1011934B1 (en) 2002-05-29
ZA981629B (en) 1998-08-28

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20180226