Patent ID: 7757330
Filing Date: 2010-07-20
Classification: A61C,A61H

Abstract:
1. An oral cleansing device comprising: a handle including: a housing structure; at least one control assembly disposed within the housing structure; and, a connection shaft assembly including at least an upper shaft and a lower shaft stemming from the housing structure; and, at least one brush assembly adapted to be connected to the connection shaft assembly of the handle; whereby the at least one control assembly includes a mechanical system to move the at least one brush assembly; the mechanical system including: a crown gear connected by a gear shaft to a reduction spur gear; a double cam gear which communicates in gear meshing relationship with the reduction spur gear; the reduction spur gear being adapted to drive the double cam gear; the double cam gear having respective upper and lower cams, one each on opposite sides of the double cam gear; upper and lower cam followers each disposed in respective operative contact with the respective upper and lower cams of the double cam gear, the double-cam gear by contact through the respective upper and lower cams, being adapted to move the two cam followers in a linear fashion; the upper and lower shafts of the connection shaft assembly each being respectively attached to the respective upper and lower cam followers, the upper and lower shafts thus being adapted to move with the respective upper and lower cam followers and thereby also move the at least one brush assembly therewith in a linearly straight fashion.