The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 07, 1992
Filed:
Jun. 05, 1990
Applicant:
Inventor:
Emilio Ambasz, New York, NY (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A46B / ; A46B / ;
U.S. Cl.
CPC ...
15 221 ; 15 222 ; 74 2 / ;
Abstract
A motor-driven toothbrush comprises a drive unit having a motor and a transmission that simultaneously drive a shaft in rotation and a brush head extension reciprocably in a direction parallel to the axis of the shaft. A brush unit includes a brush head coupled to the extension for lengthwise reciprocating motion on which several bristle holders, each carrying several bristle tufts, are mounted individually for pivotal movement about an axis spaced apart from and parallel to the drive shaft. A crank coupled to the drive shaft imparts pivotal movement to each bristle holder individually via a crank pin for each holder.