Cutlery – Cutting tools – Plural cooperating blades
Patent
1991-02-11
1991-10-29
Watts, Douglas D.
Cutlery
Cutting tools
Plural cooperating blades
30206, 302335, B26B 1900
Patent
active
050603809
ABSTRACT:
A hair cutter has a housing with a part-cylindrical cutter head and a comb member. The cutter head comprises an outer shear plate having a number of perforations and an inner cutter assembly. The inner cutter assembly includes a rotary shaft carrying a plurality of radially oriented cutter blades in a circumferentially spaced relation about an axis of the rotary shaft. The outer shear plate is arcuately curved in transverse cross section to cover a portion of the curve centered on the rotary shaft axis so as to have its inside surface in hair shearing engagement with the cutter blades. The inner cutter assembly is driven by a drive source in the housing in such a manner that the cutter blades sweep the inside surface of the outer shear plate for shearing hairs introduced through the perforations. The comb member has a number of comb teeth which are spaced along the rotary shaft axis and extend over an perforated area of the outer shear plate for smoothing the hairs into the perforations. The comb teeth are configured to have tapered ends for facilitating the hair smoothing into the perforations.
REFERENCES:
patent: 2539011 (1951-01-01), Democenzo
patent: 2715266 (1955-08-01), Haislip
patent: 4614036 (1986-09-01), Hamaguchi
patent: 4669189 (1987-06-01), Ullmann
patent: 4825546 (1989-05-01), Araki et al.
patent: 4888870 (1989-12-01), Fujikawa et al.
Matsushita Electric & Works Ltd.
Watts Douglas D.
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