Water pump toothbrush

Abstract

A toothbrush for cleaning teeth includes a body defining an internal fluid reservoir, a plurality of bristles supported at a base portion by the body, a passage extending from the internal fluid reservoir to at least one opening adjacent the base portion of the plurality of bristles, and a manually operated pump disposed in fluid flow communication between the internal fluid reservoir and the passage for transferring fluid from the internal fluid reservoir to the at least one opening in the base portion between the bristles.

1 . A toothbrush for cleaning teeth comprising:
 a body defining an internal fluid reservoir;   a plurality of bristles supported at a base portion by the body and having an outer end portion for contact with teeth;   a passage extending from the internal fluid reservoir to at least one port opening adjacent the base portion of the plurality of bristles; and   a pump disposed in fluid flow communication between the internal fluid reservoir and the passage for transferring fluid from the internal fluid reservoir through the at least one port or the base portion of the bristles.   
     
     
         2 . The toothbrush of  claim 1  further comprising:
 a reciprocal trigger carried on the body and coupled to the pump for activating the pump for fluid transfer. 
 
     
     
         3 . The toothbrush of  claim 2  further comprising:
 a piston acted on by the trigger; 
 the piston mounted in a chamber in the body; and 
 a biasing means acting on the piston for biasing the piston in one direction after the piston is moved to a water dispensing position in the chamber by the trigger. 
 
     
     
         4 . The toothbrush of  claim 3  further comprising:
 the chamber carried within the body and having an inlet and an outlet; 
 first and second flow valves respectively coupled in fluid flow communication with the inlet and the outlet, respectively, for controlling fluid flow from the internal fluid reservoir through the inlet only in a direction into the chamber upon movement of the piston back to the nominal position, and for allowing fluid flow only through the outlet of the chamber to the passage to dispense fluid from the chamber only when the piston is moved from the nominal position to a second position by depression of the trigger.