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. 27, 1982
Filed:
Nov. 07, 1979
Michel-Antoine Moret, Chene Bourg, CH;
Pierre-Jean Jousson, Geneva, CH;
Les Produits Associes. LPA, , CH;
Abstract
An electrically driven hand-held apparatus for body care, such as a toothbrush, operates by means of a rotating motor. An eccentric pin is driven by the motor and engages in a longitudinal slot defined by a fork which is secured to an instrument holder and in this manner sets the instrument holder supporting the treatment instrument such as the toothbrush in oscillatory motion about its longitudinal axis. In order to permit the oscillation amplitude to be adjusted without alteration of the oscillation frequency, the eccentric pin is fixed on a support inclined to its axis of rotation, the support being set in rotary motion by the motor shaft and the support being set in rotary motion by the motor shaft and the support being axially displaceable on its axis of rotation by means of an external operating knob. The effective eccentricity, that is to say the radial distance of the location of engagement in the longitudinal slot, of the eccentric pin from the axis of rotation of the support is thus variable.