Patent US3685401A successfully refreshed from Google Patents.
EP0366139A2
Expired / Lapsed
EP
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Improvements in or relating to safety razors
Assignee: Gillette Co LLC
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Filing: 1989-10-26
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Granted: —
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Expires: 2009-10-26
Abstract
Abstract A razor head or cartridge (1) is provided on its skin engaging surfaces, e.g. caps (6) and/or guard (4) surfaces with an array of closely spaced projections (14) which, in use, produce a pleasant tactile sensation tending to reduce shaving discomfort. The projections (14) may be formed by closely packed flexible filaments, or by moulded fins or pillars.
Inventors
- 👤 Alan Crook
- 👤 Oliver David Oglesby
- 👤 Brian Oldroyd
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 09:49
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/40; B26B21/4012; B26B21/4018; B26B21/4025
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
67 words
A safety razor having one or more blades and a skin engaging surface (such as a cap member or a guard member) wherein the said surface is formed by a plurality of upstanding straight filaments present at a density of at least 100 per sq. mm, the filaments having a uniform length of 0.3 to 2.00 mm and diameters in the range of (1.5 to 3.2)x10⁻² mm.
Claim 2
Dependent Claim
67 words
A safety razor having one or more blades and a skin engaging surface (such as a cap member or a guard member) wherein the said surface is formed by a plurality of upstanding straight filaments present at a density of at least 100 per sq. mm, the filaments having a uniform length of 0.3 to 2.00 mm and diameters in the range of (1.5 to 3.2)x10⁻² mm.
Claim 3
Dependent Claim
17 words
A razor according to claim 1, in which the filaments are of nylon, acetate or acrylic filaments.
Claim 4
Dependent Claim
97 words
A safety razor having a skin engaging surface (such as a cap member or a guard member), wherein the said surface is composed of an array of projections comprising a plurality of rows extending generally parallel with the blade edge(s), the said projections being flexible under normal shaving forces in directions transverse to the blade edge(s), and wherein the said projections have a height in the range of 0.5 to 2.5 mm, a ratio of height to base thickness in the range of 2:1 to 5:1 and a spacing between adjacent longitudinal rows of 0.3 to 1.5mm.
Claim 5
Dependent Claim
97 words
A safety razor having a skin engaging surface (such as a cap member or a guard member), wherein the said surface is composed of an array of projections comprising a plurality of rows extending generally parallel with the blade edge(s), the said projections being flexible under normal shaving forces in directions transverse to the blade edge(s), and wherein the said projections have a height in the range of 0.5 to 2.5 mm, a ratio of height to base thickness in the range of 2:1 to 5:1 and a spacing between adjacent longitudinal rows of 0.3 to 1.5mm.
Claim 6
Dependent Claim
22 words
A razor in accordance with claim 3, wherein the projections are formed as upstanding walls, each tapering to a very thin edge.
Claim 7
Dependent Claim
36 words
A razor in accordance with claim 4, wherein the surface is composed of a grid of mutually transverse rows of walls forming rectangular open cells, the walls parallel with the blade edge(s) constituting the said projections
Claim 8
Dependent Claim
26 words
A razor in accordance with claim 4, wherein the walls are spaced apart in respective, mutually transverse rows to form rectangular cells open at their corners.
Claim 9
Dependent Claim
27 words
A razor according to claim 6, wherein the walls are formed integrally with a base having apertures at the intersection of each group of four adjacent walls.
Claim 10
Dependent Claim
15 words
A razor according to claim 4, in which the projections are formed as longitudinal fins.
Claim 11
Dependent Claim
27 words
A razor according to claim 8, wherein the said fins slope upwardly and forwardly or rearwardly from their bases at an acute angle to the shaving direction.
Claim 12
Dependent Claim
19 words
A razor according to claim 8 or 9, wherein the said fins are interrupted at intervals along their lengths.
Claim 13
Dependent Claim
46 words
A razor according to claim 3, wherein the projections are constituted by a plurality of individual upstanding pillars arranged in a plurality of parallel rows with a spacing between pillars in each row, and between adjacent longitudinal rows, in the range of 0.6 to 1.5 mm.
Claim 14
Dependent Claim
15 words
A razor according to claim 11 wherein the pillars are of a synthetic elastomeric material.
Claim 15
Dependent Claim
40 words
A razor according to claim 11 wherein the pillars are individually set in a base of synthetic elastomeric material which permits deflection of the pillars about their lower ends, the pillars being of a more rigid material than the base.
References Cited (Backward Citations)
No citation records indexed.
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