Dry shavers

Details Dry shavers Dry shavers

1977-10-21

1979-01-09

Smith, Gary L.

Cutlery

Razors

With cooperating shearing blades

B26B 1907

Patent

active

041331044

ABSTRACT:
An electric dry shaver comprising a part-cylindrical cutting foil, an inner cutter provided with arcuate cutting edges which cooperate with said foil, and drive means to drive said inner cutter in linear reciprocation parallel to the axis of said part-cylindrical foil. The drive means includes a part-spherical driver head articulated to said inner cutter at a center of articulation substantially coincident with the center of gravity of said inner cutter and the center of application of the resultant of the frictional forces acting between said inner cutter and said foil during reciprocation of said inner cutter by said drive means is substantially coincident with said center of articulation and with said center of gravity.

REFERENCES:
patent: 2841867 (1958-07-01), Padgett
patent: 3271854 (1966-09-01), Starre
patent: 3504433 (1970-04-01), Futterer
patent: 3973323 (1976-08-01), Trees
patent: 4038749 (1977-08-01), Yamada

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