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US 5,244,298 AGranted
Toothbrush
OwnerAlbert M. Greenhouseinventor
Life of this patent
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OwnerAlbert M. Greenhouseinventor
Estimating the term…
An elongated housing structure is provided for accommodating a toothbrush head at one of its ends, and for insertion of a tube of toothpaste through the other of its ends. A rotating pin is provided to roll the bottom end of the toothpaste tube, thereby to dispense the toothpaste, and to move forwardly of the housing as the tube becomes smaller and smaller when the toothpaste is dispensed. The forward motion of the pin is accommodated by an elongated slot defined by the housing. A further structural provision is made in order to selectively move the top of the toothpaste tube into and out of position with respect to the bristles of the toothbrush, by means of a knurled knob and depending collar or neck holder movable in a second slot defined by the housing. The toothbrush head is movably connected to the front of the housing, so that the bristles can be moved between a paste-loading position and a brushing position. A gripping surface is also defined by the housing. A connecting structure is provided to coordinate the motion of the tube positioning mechanism and the bristle-moving mechanism.
A combined toothbrush and toothpaste holding and feeding structure for use in applying paste from a toothpaste tube, including a nozzle, an opening defined by said nozzle and a tube bottom, onto a user's toothbrush bristles, comprising an elongated housing having a first end, a second end, and defining at said first end an opening for loading said toothpaste tube into said housing with its nozzle being loaded initially before its bottom, means for advancing said nozzle toward said second end, means for squeezing said tube bottom, said means for advancing providing a first position for said nozzle within said housing and a second position for said nozzle opening outside of said second end, a toothbrush with bristles and a stem, insertable to said housing through said second end, and means for positioning said bristles below said nozzle opening when said nozzle opening is in said second position, all adapted and arranged to load said toothpaste tube into said housing, to squeeze toothpaste from said toothpaste tube, when said toothpaste tube nozzle opening is positioned above said bristles and to brush the user's teeth, while remaining during said functioning as a unitary, combined structure.
Dependencies are inferred from the claim text.