Cutlery – Cutting tools – Plural cooperating blades
Patent
1994-11-09
1997-02-11
Payer, Hwei-Siu
Cutlery
Cutting tools
Plural cooperating blades
30210, 72340, 76116, 76DIG8, B26B 1906
Patent
active
056008902
ABSTRACT:
A hair-cutting apparatus has a toothed cutting device comprising a stationary cutter with a row of cutter teeth and a reciprocable cutter with a row of cutter teeth, the cutter teeth of at least one of the two cutters are rounded at their distal ends except for the area of their shearing faces and in addition are wholly rounded over their entire tooth depth into the proximal tooth area except for the area of their shearing faces.
REFERENCES:
patent: 2713718 (1955-07-01), Hudson
patent: 2875519 (1959-03-01), Andis
patent: 3166957 (1965-01-01), Biesma
patent: 4106190 (1978-08-01), Buras, Jr. et al.
patent: 4118863 (1978-10-01), Sandy
patent: 4941259 (1990-07-01), Wolf
patent: 5054199 (1991-10-01), Ogawa
Leitner Stephan
Ribitsch Josef
Bartlett Ernestine C.
Payer Hwei-Siu
U.S. Philips Corporation
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