Back to results
US 6,658,686 B1Granted
Rotary disc toothbrush
OwnerSoo-Woong Leeinventor
Life of this patent
Estimating the term…
Abstract
A toothbrush design which more effectively permits bristle penetration into the spaces between tooth and gum for removal of plaque and food debris lodged within these spaces. The toothbrush design incorporates a rotatable brush disc having a plurality of radially outward extending bristles but where the width of the bristle disc and number of bristles are preferably limited so that the bristle tips can penetrate into the space between tooth and gum and preferably be of sufficient length to penetrate to the bottom of the space.
Claims6
A toothbrush comprising:
- an elongated body defining a handle;
- a pair of bristle discs each rotatably connected to said handle, said bristle discs each comprising a first plurality of bristles radially extending outward where the distance axially across said plurality of bristles is sufficiently limited to permit a portion of said plurality of bristles to extend into the space between tooth and gum where said bristle disc will rotate within said space as the handle is displaced in a substantially parallel direction relative to the space between tooth and gum;
- said first plurality of bristles is of sufficient length so as to extend substantially to the base of the space between tooth and gum;
- and,
- where a second plurality set of bristles extend away from at least one of said bristle discs in a substantially perpendicular direction relative to said first plurality set of bristles.
2 more elements
A toothbrush comprising:
- an elongated body defining a handle;
- and,
- a pair of bristle discs each rotatably connected to said handle, said bristle discs each comprising a first plurality of bristles radially extending outward where a portion of said plurality of bristles can extend into the space between tooth and gum, and when a portion of said first plurality of bristles is partially within said space, the respective bristle disc will rotate in response to the handle displaced in a substantially parallel direction relative to the space between tooth and gum;
- and,
- where a second plurality set of bristles extend away from at least one of said bristle discs in a substantially perpendicular direction relative to said first plurality set of bristles.
2 more elements
A toothbrush comprising:
- an elongated body defining a handle;
- and,
- a pair of bristle discs each rotatably connected to said handle, said bristle discs each comprising a first plurality of bristles radially extending outward;
- and,
- where a second plurality set of bristles extend away from at least one of said bristle discs in a substantially perpendicular direction relative to said first plurality set of bristles.
2 more elements
Dependencies are inferred from the claim text.