Safety razors and guards
AssigneeThe Gillette Company
InventorsAlan Crook, Oliver D. Oglesby, Brian Oldroyd
Life of this patent
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Abstract
A razor head or cartridge is provided on its skin engaging surfaces, e.g. caps and/or guard surfaces with an array of closely spaced projections which, in use, produce a pleasant tactile sensation tending to reduce shaving discomfort. The projections may be formed by closely packed flexible filaments, or by moulded fins or pillars.
Claims13
A safety razor having one or more blades and a skin engaging surface wherein said surface is formed by a plurality of upstanding straight filaments said filaments extending throughout their length away from said surface, said 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).times.10.sup.-2 mm.
A safety razor having a skin engaging surface, wherein said surface is composed of an array of projections, said projection extending throughout their lengths away from said surface, said projections comprising a plurality of rows extending generally parallel with the blade edge(s), the said projection begin flexible under normal shaving forces in directions transverse to the blade edge(s), and wherein said projections have a height up 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 1.5 mm.
Dependencies are inferred from the claim text.