×

Brush section for an electric toothbrush

  • US 20080307591A1
  • Filed: 01/31/2008
  • Published: 12/18/2008
  • Est. Priority Date: 02/02/2007
  • Status: Active Grant
First Claim
Patent Images

1. A cleaning section for an electrical toothbrush having a motor and a drive shaft, the cleaning section comprising:

  • a movable bristle holder structured to receive a drive motion from the motor via a drive mechanism comprising a drive shaft having a longitudinal axis, the drive shaft being structured to oscillate around its longitudinal axis thereby imparting rotation or oscillation to the movable bristle holder; and

    a head including a first plurality of cleaning bristles arranged in a static bristle field and a second plurality of cleaning bristles supported within the movable bristle holder to have at least one freedom of motion relative to the first plurality of cleaning bristles,wherein the movable bristle holder is movable with respect to the head and the static bristle field such that a cleaning motion of the second plurality of bristles includes an oscillating movement of the second plurality of cleaning bristles relative to the first plurality of cleaning bristles, and wherein the oscillating movement of the second plurality of bristles is caused by the oscillating movement of the drive shaft.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×