Electric toothbrush

Details Electric toothbrush Electric toothbrush

2005-11-16

2010-10-12

Guidotti, Laura C (Department: 3727)

Brushing, scrubbing, and general cleaning

Machines

Brushing

C074S02200R

Reexamination Certificate

active

07810200

ABSTRACT:
An electric toothbrush wherein the number of revolution of a motor shaft is in match with the frequency of reciprocating motion of the brush. A motor (2) housed in a tubular case (1) is coupled to a reciprocating shaft (5) slidably extending through the forward end of the case by a scotch yoke mechanism (40) for converting one turn of rotation of the motor shaft (21) into one stroke of reciprocating pivotal movement of a pivotal body (4), and by motion conversion means (3) for converting one stroke of reciprocating movement of the pivotal body (4) into one stroke of linear reciprocating motion of the reciprocating shaft (5).

REFERENCES:
patent: 5253382 (1993-10-01), Beny
patent: 2398487 (2004-08-01), None
patent: 9-24057 (1997-01-01), None
patent: 9-177923 (1997-07-01), None
patent: WO 02/067806 (2002-09-01), None

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