Patent ID: 8851779

Claim:
An oral care system comprising: a toothbrush; and a dispenser detachably coupled to the toothbrush, the dispenser comprising: a housing having an internal reservoir configured for containing a fluid; a dispensing orifice in the housing in fluid communication with the reservoir; and a fluid delivery system comprising a ratchet rod extending into the reservoir, an actuator operably coupled to the ratchet rod for imparting movement thereto, and a plunger assembly operably coupled to the ratchet rod and axially movable within the housing by activation of the actuator, the plunger assembly forming a selectively-positionable end wall of the reservoir, the plunger assembly comprising an outer cup seal slidably engaged with the housing and an inner plunger disposed at least partially in the outer cup seal, the plunger assembly including a pawl movably engaged with the ratchet rod, wherein the inner plunger defines an internal passageway, the pawl being disposed within the passageway and the outer cup seal so that the pawl is not directly exposed to an oral care fluid contained in the reservoir of the housing; and wherein activation of the actuator moves the plunger assembly in a first direction and dispenses the fluid from the reservoir via the orifice.