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US 6,058,541 AGranted
Crimped bristle toothbrush
AssigneeGillette Canada Inc.
InventorsThomas Craig Masterman, Jeffrey Meessmann, Jean Spencer, Georges Driesen, Armin Schwarz-Hartmann, Peter Hilfinger
Life of this patent
Estimating the term…
Abstract
An improved oral brush is provided that includes crimped bristles. The oral brush includes a body and, extending from the body, a plurality of crimped bristles. One such oral brush is an electric toothbrush, with a brush head having a preferred arrangement of tufts of crimped and straight bristles that are flexed by cyclic motions of the brush head toward and away from the tooth.
Claims62
An oral brush comprising:
- a body including
- a) an elongated handle having a longitudinal extent and a first end, and
- b) a head positioned at said first end, said head being constructed for insertion into an oral cavity of a human;
- a plurality of non-crimped bristles extending from said head at an angle to said longitudinal extent of said elongated handle;
- and
- a plurality of crimped bristles extending from said head, said crimped bristles defining a regularly repeating wave form or combination of wave forms, each crimped bristle having substantially the same crimp geometry as each of the other crimped bristles and a diameter of from about 0.006 inch to 0.020 inch,
- said brush being constructed to cleanse the oral cavity.
4 more elements
An oral brush comprising:
- a) body including
- a an elongated handle having a longitudinal extent and a first end, and
- b) a head positioned at said first end, said head being constructed for insertion into an oral cavity of a human;
- a plurality of crimped bristles extending from said head, said crimped bristles defining a regularly repeating wave form or combination of wave forms, each crimped bristle having a diameter of from about 0.006 inch to 0.020 inch;
- and
- a plurality of non-crimped bristles extending from said head at an angle to said longitudinal extent of said handle.
3 more elements
An oral brush comprising:
- a body including a head constructed to be inserted into an oral cavity;
- a plurality of crimped bristles extending from said head, said crimped bristles defining a regularly repeating wave form or combination of wave forms, each crimped bristle having substantially the same crimp geometry as each of the other crimped bristles, said crimped bristles being mounted along perimeter region of said head;
- and
- a plurality of non-crimped bristles mounted on a central region of said head,
- said brush constructed to cleanse the oral cavity.
2 more elements
An oral brush comprising:
- a body including a head constructed to be inserted into an oral cavity;
- a plurality of crimped bristles extending from said head, said crmped bristles defining a regularly repeating wave form or combination of wave forms, each crimped bristle having substantially the same crimp geometry as each of the other crimped bristles, said crimped bristles being mounted on two, spaced symmetrical, semi-circular central regions of said head;
- and
- a plurality of non-crimped bristles mounted along a perimeter region of said head,
- said brush constructed to cleanse the oral cavity.
2 more elements
An oral brush comprising:
- an electric toothbrush that comprises
- a head constructed to be inserted into an oral cavity;
- a plurality of crimped bristles arranged in tufts extending from said head, said crimped bristles defining a regularly repeating wave form or combination of wave forms, each crimped bristle having substantially the same crimp geometry as each of the other crimped bristles;
- and
- tufts of straight bristles extending from said head,
- said brush constructed to cleanse the oral cavity.
3 more elements
An oral brush comprising:
- a body including a head constructed to be inserted into an oral cavity;
- a plurality of crimped bristles extending from said head, said crimped bristles defining a regularly repeating wave form or combination of wave forms, each crimped bristle having substantially the same crimpe geometry as each of the other crimped bristles,
- said plurality of crimped bristles being arranged in a tuft extending from said head, said tuft of crimped bristles being arranged in an inner region of the head;
- and
- tufts of straight bristles arranged about the periphery of said inner region, at least two of said tufts of straight bristles extending beyond the distal ends of said tuft of crimped bristles and being separated by a distance of about 10 millimeters,
- said oral brush comprising an electric toothbrush adapted to rotate said head about a rotational axis substantially parallel to the longitudinal axis of said tuft, and to cyclically move the head in the directionof said rotatinal axis,
- said oral brush constructed to cleasnse the oral cavity.
4 more elements
An oral brush comprising:
- a body including
- a) an elongated handle having a longitudinal extent and a first end, and
- b) a head positioned at said first end, said head being constructed for insertion into an oral cavity of a human;
- a plurality of non-crimped bristles extending from said head at an angle to said longitudinal extent of said elongated handle;
- and
- a plurality of crimped bristles extending from said head, said crimped bristles defining a regularly repeating wave form or combination of wave forms, said crimped bristles having a stiffness grade that is about 20% lower than the stiffness grade of straght bristles of the same material having the same diameter,
- said brush being constructed to cleanse the oral cavity.
4 more elements
Dependencies are inferred from the claim text.