Abstract: A toothbrush with a replaceable head in which the handle has a socket and the head has a pin for insertion into the socket and the socket side walls or the pin comprise a resiliently deforable elastomer material differnt to the material of the socket side walls or pin. A preferred form of the toothbrush has its socket in a tubular structure resiliently supported between two fork-like arms.
Abstract: A toothbrush head suitable to direct incident radiation toward a surface of a tooth and to collect emitted radiation from the surface of the tooth, being made at least in past of a material which is transparent to the incident and/or emitted radiation. In preferred embodiments the head includes one or more radiation guiding cores of transparent material.
Type:
Grant
Filed:
August 2, 1999
Date of Patent:
March 8, 2005
Assignees:
SmithKline Beecham GmbH & Co. KG, Helmut Hung GmbH
Abstract: A toothbrush having a hinge located between its head and its handle, provided by first and second hinge parts extending respectively from the head end of the toothbrush toward the handle end, and from the handle end toward the head end, in a longitudinally overlapping side by side relationship, the overlapping parts being able to rotate relative to each other through a restricted angle about an axis generally perpendicular to the longitudinal axis, the two parts being linked by a torsion element between them.
Abstract: The invention concerns a toothbrush with a bristle head or accessory unit which compensates for the brushing pressure and associated bending of the holder unit as well as hand movements. The toothbrush is characterized in that an O-ring or elastic shoe that is made either detached from or connected to the adjacent components is provided between the replaceable or fixed bristle unit and the holder unit. The bristle unit and holder unit are joined via a ball joint.