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US 6,314,606 B1Granted
Contouring toothbrush head
AssigneeColgate-Palmolive Company
InventorDouglas J. Hohlbein
Life of this patent
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AssigneeColgate-Palmolive Company
InventorDouglas J. Hohlbein
Estimating the term…
A toothbrush having two head sections, the sections being normally biased to assume an angle with respect to each other, to thereby define a generally concave bristle tip configuration. The two sections of the head have facing ends joined by a thin bridge section integral with the two heads. In one embodiment, there is one bridge section near the lower surface of the head. In another embodiment, there are two longitudinally spaced bridge sections each near the lower head surface. In a third embodiment, the bridge section is a thin integral connection between facing ends of the two sections. In other embodiments, the two head sections are normally aligned and are also joined by a thin, integral bridge section, with the bristles of the head section most remote from the handle being of uniformly different lengths. The space between the two facing ends is filled with an elastomer, typically SANTOPRENE (brand). The two head sections define an articulated head. In yet another embodiment, the bridge section is omitted.
A toothbrush comprising a handle and an articulated head, said head having at least two sections to thereby define a composite head having an upper surface and a lower surface, said at least two sections having respective longitudinally spaced ends facing each other, each of said head sections having a plurality of tufts of bristles extending from the lower surface thereof, said facing ends having an elastomeric material therebetween, said handle area having a molded-in channel that may be used to introduce elastomeric material into said head.
A toothbrush comprising a handle and an articulated head, said head having at least two sections to thereby define a composite head having an upper surface and a lower surface, said at least two sections having respective longitudinally spaced ends facing each other, each of said head sections having a plurality of tufts of bristles extending from the lower surface thereof, said facing ends having an elastomeric material therebetween, wherein at least some of the tufts extending from the bottom surface of one of said head sections are of uniformly different lengths, wherein at least some of the free ends of the tufts extending from one of said head sections form a slant with respect to the lower surface of said head section, wherein the length of the elastomer between the facing ends of said two head sections varies, said length being measured along the toothbrush longitudinal axis.
A toothbrush comprising a handle and an articulated head, said head having at least two sections to thereby define a composite head having an upper surface and a lower surface, said at least two sections having respective longitudinally spaced ends facing each other, each of said head sections having a plurality of tufts of bristles extending from the lower surface thereof, said facing ends having an elastomeric material therebetween, wherein the length of the elastomer between the facing ends of said two head sections varies, said length being measured along the toothbrush longitudinal axis.
A method of producing a toothbrush comprising:
A method of producing a toothbrush comprising:
Dependencies are inferred from the claim text.