Electrical toothbrush

Details Electrical toothbrush Electrical toothbrush

1994-03-17

1995-01-17

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Machines

Brushing

74 25, A61C 1734

Patent

active

053815769

ABSTRACT:
An electrical toothbrush according to the present invention comprising a housing, an electric motor mounted in the housing for rotating an eccentric pin, a reciprocating vibration holding shaft mounted in the upper housing for being adapted for attachment of a toothbrush thereon, the holding shaft being drivable for oscillation about its longitudinal axis, the toothbrush being interchangeably connected to the upper end of the holding shaft, transformer structure for transforming the rotary motion of the eccentric pin into a reciprocating vibratory motion of the holding shaft, the transformer comprising a cylindrical member and an elastic deformable member connected by an integral lever member.

REFERENCES:
patent: 4326314 (1982-04-01), Moret et al.
patent: 4413199 (1983-11-01), Fischer

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