Electric toothbrush
First Claim
1. A brush part for an electric toothbrush, the brush part comprisinga carrier tube;
- a drive translator movably mounted within the carrier tube and couplable to a drive in an electric toothbrush handle part; and
a bristle carrier movably mounted to the carrier tube and carrying a set of bristles, the bristle carrier drivable in an oscillatory manner by the drive translator;
wherein the drive translator defines an interior fluid supply channel forming part of a fluid path providing fluid communication to the bristle set.
1 Assignment
0 Petitions
Accused Products
Abstract
An electric toothbrush including a pressure fluid device for applying fluid under pressure to teeth to be cleaned or to a bristle set. The pressure fluid device includes a pressure fluid supply in the interior of a movable drive translator. A brush part with a carrier tube is movably mounted with a drive translator therein adapted to be coupled to a drive element in a handle part. A movably mounted bristle carrier mounts a set of bristles and is adapted to be driven in an oscillatory manner by the drive translator. A motor in the handle part drives a drive element adapted to be coupled to a drive element in the brush part and with a pressure fluid conveying device driven by the motor. A pressure fluid channel, which directs the pressure fluid to the toothbrush head, is integrated into the drive translator.
147 Citations
18 Claims
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1. A brush part for an electric toothbrush, the brush part comprising
a carrier tube; -
a drive translator movably mounted within the carrier tube and couplable to a drive in an electric toothbrush handle part; and a bristle carrier movably mounted to the carrier tube and carrying a set of bristles, the bristle carrier drivable in an oscillatory manner by the drive translator; wherein the drive translator defines an interior fluid supply channel forming part of a fluid path providing fluid communication to the bristle set. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A handle part of an electric toothbrush configured to drive a removable brush part, the handle part comprising:
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a handle part housing; a motor having a motor shaft and disposed within the handle part housing; a drive element operably connected to the motor shaft through a gear step and positioned to drive an associated removable brush part; and pump driven by the motor shaft and defining a fluid outlet; wherein both the pump and the gear step are driven by a driver connected to the motor drive shaft, the pump being disposed between the motor and the gear step; and wherein the drive element defines a pressure fluid channel in fluid communication with the pump. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A replacement brush head for an electric toothbrush handle, the brush head comprising
a carrier tube; -
a drive translator movable within the carrier tube and having a first end operably couplable to a drive of an electric toothbrush handle; a bristle carrier movably mounted on the carrier tube and carrying a set of bristles, the bristle carrier operably connected to, and drivable in oscillatory manner by, the drive translator; wherein the drive translator defines a passage therein, the passage forming a part of a fluid supply channel providing fluid communication between the first end of the drive translator and the bristle carrier, such that fluid pumped into the drive translator from the electric toothbrush handle is delivered to the bristle carrier.
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Specification