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:
Apr. 17, 1979
Filed:
Dec. 02, 1977
Werner Stoltz, Friedrichsdorf, DE;
Blendax-Werke R. Schneider GmbH & Co., Mainz, DE;
Abstract
An electrically powered toothbrush with an eliptical brushing motion comprising a motor-operated rotating output drive and a disk rotatably mounted thereon, said disk having at least one eccentric funnel-shaped orifice which serves as an end bearing for a flexible direct drive shaft, a direct output shaft having one end bearing on said funnel-shaped orifice and the opposite end constructed as a holder for a brush, a second bearing for said shaft being located at a point between the two shaft ends, said output shaft having rigidity in one plane of the axis of rotation and flexibility in a perpendicular plane whereby an eliptical brush rotation is achieved as a result of tooth counterpressure again the brush, and a housing.