Back to results
US 5,625,916 AGranted
Toothbrush
OwnerGreg McDougallinventor
Life of this patent
Estimating the term…
Abstract
An electrical driven toothbrush has a rotatable shaft with a remote end which fits into a slot in a bristle holder. The holder is mounted for rotation on a post supported by a head. When the shaft rotates the remote end describes a circle and driving engages the slot to cause the holder to vibrate.
Claims4
An electrically driven toothbrush comprising:
- a handle portion at a first end of said toothbrush;
- a head section at a second end of said toothbrush;
- a rotatable, integrally formed shaft extending from said handle portion to said head section and having a first longitudinal central axis;
- and
- a generally circular, bristle holder pivotally mounted to said head section on a post having a second longitudinal axis and drivingly engaged by a remote-most end of said shaft, said remote-most end of said shaft bent toward an intersection of said first longitudinal central axis and said second longitudinal axis, said bristle holder having a first closed-ended slot extending radially inward from the outer circumference of said holder to less than the distance to the center of said holder to receive and retain said remote-most end of said shaft, said bristle holder having a plurality of bristle receiving and retaining holes formed in and distributed around a top surface of said holder, said slot extending inwardly between an adjacent pair of said holes.
2 more elements
Dependencies are inferred from the claim text.