GB1423831A - Razor blades - Google Patents
Razor bladesInfo
- Publication number
- GB1423831A GB1423831A GB1629272A GB1629272A GB1423831A GB 1423831 A GB1423831 A GB 1423831A GB 1629272 A GB1629272 A GB 1629272A GB 1629272 A GB1629272 A GB 1629272A GB 1423831 A GB1423831 A GB 1423831A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crystal
- cutting edge
- ions
- april
- plastics
- 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
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
Abstract
1423831 Razor blades WILKINSON SWORD Ltd 4 April 1973 [8 April 1972 (5)] 16292/72 16293/72 16294/72 16296/72 and 16298/72 Heading B4B A razor blade comprises a single crystal of alumina having a cutting edge thereon. The crystal is secured, e.g. by a resin adhesive to a supporting member, e.g. of plastics or metal which member may be formed with a guard bar adjacent the cutting edge and arranged to be gripped by a handle. The cutting edge may be formed on the crystal chemical methods, e.g. by dissolution or etching or by a combination of chemical and abrasive methods. The final shaping of the cutting edge may be provided by ion bombardment using an ion beam of appropriate shape. The strength of the crystal may be increased by including a concentration of "large ions" in the surface of the crystal adjacent the cutting edge; the ions can be introduced into the surface by coating the surface of the crystal with a suitable compound containing the large ions and then heating the coating. The crystal may be coated with a plastics, e.g. P.T.F.E. to improve the shaving characteristics; in addition, the blade may be coated with a metal, e.g. chromium.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1629272A GB1423831A (en) | 1972-04-08 | 1972-04-08 | Razor blades |
DE2317033A DE2317033A1 (en) | 1972-04-08 | 1973-04-05 | RAZOR BLADE AND METHOD OF MANUFACTURING IT |
US348648A US3894337A (en) | 1972-04-08 | 1973-04-06 | Alumina razor blades |
ES413476A ES413476A1 (en) | 1972-04-08 | 1973-04-07 | A method of making a shave sheet. (Machine-translation by Google Translate, not legally binding) |
JP4029573A JPS5613477B2 (en) | 1972-04-08 | 1973-04-09 | |
FR7312628A FR2180326A5 (en) | 1972-04-08 | 1973-04-09 |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1629272A GB1423831A (en) | 1972-04-08 | 1972-04-08 | Razor blades |
GB1629672 | 1972-04-08 | ||
GB1629872 | 1972-04-08 | ||
GB1629472 | 1972-04-08 | ||
GB1629372 | 1972-04-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1423831A true GB1423831A (en) | 1976-02-04 |
Family
ID=27516171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1629272A Expired GB1423831A (en) | 1972-04-08 | 1972-04-08 | Razor blades |
Country Status (4)
Country | Link |
---|---|
US (1) | US3894337A (en) |
DE (1) | DE2317033A1 (en) |
FR (1) | FR2180326A5 (en) |
GB (1) | GB1423831A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5048191A (en) * | 1990-06-08 | 1991-09-17 | The Gillette Company | Razor blade technology |
US5121660A (en) * | 1990-03-19 | 1992-06-16 | The Gillette Company | Razor blade technology |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58188012U (en) * | 1982-06-09 | 1983-12-14 | アダマンド工業株式会社 | surgical knife |
JPS6041926Y2 (en) * | 1982-06-14 | 1985-12-21 | 株式会社半田屋商店 | surgical knife |
US4478037A (en) * | 1982-07-16 | 1984-10-23 | Stanley Backer | Twisting method and apparatus |
US4534827A (en) * | 1983-08-26 | 1985-08-13 | Henderson Donald W | Cutting implement and method of making same |
JPS62253095A (en) * | 1986-04-25 | 1987-11-04 | 玉井 一朗 | Edge tool |
US5579583A (en) * | 1992-09-22 | 1996-12-03 | Micromed, Incorporated | Microfabricated blades |
US5347887A (en) * | 1993-03-11 | 1994-09-20 | Microsurgical Techniques, Inc. | Composite cutting edge |
US6293020B1 (en) * | 1997-02-14 | 2001-09-25 | Nitinol Technologies, Inc. | Cutting instruments |
US6277295B1 (en) * | 1999-04-23 | 2001-08-21 | Board Of Supervisors Of Louisiana State University And Argricultural And Mechanical College | Etching alumina ceramics |
US6986208B1 (en) * | 1999-11-10 | 2006-01-17 | Bromer Nicholas S | Blade with microscopic ceramic cutting plates |
US6701627B2 (en) * | 2001-07-26 | 2004-03-09 | American Saw & Mfg. Company, Inc. | Composite utility knife blade |
US7712222B2 (en) * | 2001-07-26 | 2010-05-11 | Irwin Industrial Tool Company | Composite utility blade, and method of making such a blade |
CN1298292C (en) * | 2002-03-11 | 2007-02-07 | 贝克顿迪肯森公司 | System and method for the manufacture of surgical blades |
US7387742B2 (en) * | 2002-03-11 | 2008-06-17 | Becton, Dickinson And Company | Silicon blades for surgical and non-surgical use |
US20090007436A1 (en) * | 2003-03-10 | 2009-01-08 | Daskal Vadim M | Silicon blades for surgical and non-surgical use |
US20050155955A1 (en) * | 2003-03-10 | 2005-07-21 | Daskal Vadim M. | Method for reducing glare and creating matte finish of controlled density on a silicon surface |
US20040181928A1 (en) * | 2003-03-17 | 2004-09-23 | Smith Norman Frank | Mounting a blade handle on a microkeratome blade |
US20040181950A1 (en) * | 2003-03-17 | 2004-09-23 | Rodgers Murray Steven | Alignment of microkeratome blade to blade handle |
US20040186494A1 (en) * | 2003-03-17 | 2004-09-23 | Mcwhorter Paul Jackson | Microkeratome cutting head assembly with reduced contact between cutting blade and eye flap |
US6993818B2 (en) * | 2003-03-17 | 2006-02-07 | Memx, Inc. | Multi-fixture assembly of cutting tools |
US20040186493A1 (en) * | 2003-03-17 | 2004-09-23 | Mcwhorter Paul Jackson | Microkeratome cutting head assembly with single bevel cutting blade |
WO2004108369A1 (en) * | 2003-06-06 | 2004-12-16 | Luca Freudiger | Blade for razors used for cosmetic and hygiene/sanitary purposes |
JP2007514457A (en) * | 2003-09-17 | 2007-06-07 | ベクトン・ディキンソン・アンド・カンパニー | System and method for creating straight and non-linear grooves using routers in silicon and other crystalline materials |
US7396484B2 (en) * | 2004-04-30 | 2008-07-08 | Becton, Dickinson And Company | Methods of fabricating complex blade geometries from silicon wafers and strengthening blade geometries |
CA2577166A1 (en) * | 2004-08-30 | 2006-03-09 | Sundeo Technologies, Llc | Cutting blade |
ES2565165T3 (en) * | 2004-09-08 | 2016-03-31 | Bic Violex S.A. | Method for deposition of a layer on a razor blade and razor blade |
TWI357319B (en) * | 2007-01-22 | 2012-02-01 | Cabot Microelectronics Corp | Highly polished cutting instruments and method of |
US20120311865A1 (en) * | 2011-06-08 | 2012-12-13 | Zafirro, Llc | Mineral blade and razor for use with same |
US20130014396A1 (en) | 2011-07-14 | 2013-01-17 | Kenneth James Skrobis | Razor blades having a wide facet angle |
US11148309B2 (en) * | 2013-06-05 | 2021-10-19 | The Gillette Company Llc | Razor components with novel coating |
EP3666513A1 (en) * | 2018-12-14 | 2020-06-17 | The Gillette Company LLC | Cutting-edge structures |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH207113A (en) * | 1938-12-09 | 1939-09-30 | Lockspeiser Abraham | Razor blade. |
US2408790A (en) * | 1944-05-16 | 1946-10-08 | Edward L Mack | Razor blade and other cutting tools |
FR981792A (en) * | 1949-02-25 | 1951-05-30 | Sharp glass tools | |
US3341352A (en) * | 1962-12-10 | 1967-09-12 | Kenneth W Ehlers | Process for treating metallic surfaces with an ionic beam |
US3543402A (en) * | 1968-04-15 | 1970-12-01 | Coors Porcelain Co | Ceramic cutting blade |
BR7102060D0 (en) * | 1970-04-17 | 1973-04-05 | Wilkinson Sword Ltd | SHAVING BLADE AND PROCESS FOR THE SAME MANUFACTURE |
US3703766A (en) * | 1970-07-20 | 1972-11-28 | Edward Camp Tibbals | Safety razor blade |
GB1380583A (en) * | 1971-01-21 | 1975-01-15 | Gillette Co | Cutting edges |
-
1972
- 1972-04-08 GB GB1629272A patent/GB1423831A/en not_active Expired
-
1973
- 1973-04-05 DE DE2317033A patent/DE2317033A1/en not_active Ceased
- 1973-04-06 US US348648A patent/US3894337A/en not_active Expired - Lifetime
- 1973-04-09 FR FR7312628A patent/FR2180326A5/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5121660A (en) * | 1990-03-19 | 1992-06-16 | The Gillette Company | Razor blade technology |
US5048191A (en) * | 1990-06-08 | 1991-09-17 | The Gillette Company | Razor blade technology |
Also Published As
Publication number | Publication date |
---|---|
FR2180326A5 (en) | 1973-11-23 |
US3894337A (en) | 1975-07-15 |
DE2317033A1 (en) | 1973-10-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1423831A (en) | Razor blades | |
GB1381561A (en) | Method of producing a glass blade with a sharp cutting edge | |
BR8907055A (en) | PROCESS OF FORMING OR MODIFYING THE SHAVING BLADE GUMES AND APPLIANCE FOR ITS REALIZATION | |
TW370572B (en) | Razor blades and shaving units improved by hard-carbon coating with amorphous diamond and process for preparing them | |
IE36169B1 (en) | Razor blade unit | |
GB597177A (en) | Razor blades and other cutting tools | |
CA2037895A1 (en) | Safety Razors | |
DE3860605D1 (en) | RAZOR BLADE UNIT. | |
US4615436A (en) | Magnetic razor blade conditioning device | |
ES197918U (en) | A shaving unit. (Machine-translation by Google Translate, not legally binding) | |
GB1492501A (en) | Holder for a blade | |
GB1438654A (en) | Members having a cutting edge | |
GB1520834A (en) | Razors | |
ES289841U (en) | Razor blades. | |
US2442436A (en) | Dermatome | |
GB1065723A (en) | Improvements relating to razor blades and to methods of manufacture thereof | |
GB744250A (en) | Improvements in safety razors | |
GB1289869A (en) | ||
US1633739A (en) | Safety razor | |
SU1152723A1 (en) | Cutting tool | |
JPH038220Y2 (en) | ||
GB504986A (en) | Improvements in safety razors | |
GB765134A (en) | Improvements in or relating to gum-tree tapping gouges | |
JPS57121413A (en) | Spot facing end mill | |
JPS5294262A (en) | Side shaving blade of electric razor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |