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US 2003/0115704 A1Published application
Stepped diameter bristles for a toothbrush
AssigneeKoninklijke Philips Electronics N.V.
InventorThomas P. McConnell
Life of this patent
Estimating the term…
Abstract
The bristles have a stepped configuration with a top portion with a uniform diameter of approximately 0.005 inches, a middle portion with a uniform diameter of approximately 0.006 inches and a base portion having a uniform diameter of approximately 0.007 inches.
Claims9
A toothbrush bristle, comprising:
- a bristle member adapted for use as part of a set of toothbrush bristles, wherein the bristle member has a stepped configuration, including a smallest diameter, flexible top portion at an upper end of the bristle member, and a base portion having the largest diameter, providing stiffness and support for the bristle member.
A brushhead, comprising:
- a plurality of tufts of bristle members, the tufts arranged and set into a base plate to form a brushhead, wherein the bristle member has a stepped configuration, including a smallest diameter flexible top portion at an upper end of the bristle member, and a base portion having the largest diameter, providing stiffness and support for the bristle member, wherein the top portion has such a diameter and is otherwise configured to conveniently enter between teeth and gums of a user.
Dependencies are inferred from the claim text.