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US 11,229,283 B2Granted
Brush with fluid delivery
AssigneeColgate-Palmolive Company
InventorsGerald Gontarz, Patrik Johansson, John Gatzemeyer, Douglas Hohlbein, Daniel Wainless, Brian Bloch, Najma Khan
Life of this patent
Estimating the term…
Abstract
A toothbrush includes a handle, a head at a distal end of the handle comprising a bristle plate, a hole extending through the bristle plate, a plurality of bristles at least partially disposed in the hole and extending from the hole in a direction away from the head, and a reservoir in fluid communication with the hole. Fluid in the reservoir enters the tuft holes and is wicked out of the head of the toothbrushes by capillaries formed between the bristles.
Claims9
A toothbrush comprising:
- a handle;
- a head coupled to the handle, the head comprising a top surface and a cavity;
- an oral care fluid stored in the cavity;
- at least one tuft hole extending from the top surface of the head to a floor of the tuft hole, the tuft hole having a first diameter;
- a bristle tuft positioned within the tuft hole and extending from the top surface of the head;
- at least one fluid passageway extending from the cavity to an opening in the floor of the tuft hole, the at least one fluid passageway having a second diameter;
- and
- wherein the first diameter is greater than the second diameter.
5 more elements
Dependencies are inferred from the claim text.