Piezoelectrically actuated shaver

Details Piezoelectrically actuated shaver Piezoelectrically actuated shaver

1999-02-17

2000-12-12

Watts, Douglas D.

Cutlery

Razors

With cooperating shearing blades

30DIG1, B26B 1902, B26B 1938

Patent

active

061581267

ABSTRACT:
A small, lightweight, efficient, quiet electric shaver is provided in which one or more piezoelectric drivers are mechanically coupled to a cutting blade. The cutting action of the blade is generated by the piezoelectric drivers which, when electrically energized, oscillate at a predetermined frequency. The piezoelectric driver is electrically energized by a regenerative drive circuit. Hair shafts, which protrude from the surface to be shaved through a perforated foil member, are sheared at their base by the oscillating action of the blade.

REFERENCES:
patent: 3376636 (1968-04-01), Schuessler
patent: 3631595 (1972-01-01), Scott
patent: 5794342 (1998-08-01), Davey

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