초록 ▼

A battery operated, hand-held fluid dispenser comprises a supply container having a body portion and a narrow neck extending upwardly therefrom. A pump and discharge unit is mounted on the upper end of the neck and comprises a pump diaphragm and pump chamber for pumping liquid from the container to

A battery operated, hand-held fluid dispenser comprises a supply container having a body portion and a narrow neck extending upwardly therefrom. A pump and discharge unit is mounted on the upper end of the neck and comprises a pump diaphragm and pump chamber for pumping liquid from the container to a discharge nozzle. A battery powered pump drive unit is removably mounted on the container and comprises an electric motor having an output shaft coupled with the pump diaphragm to displace the latter through a pump stroke when the motor is energized. The pump drive unit is interconnected with the pump and discharge unit and with the body portion of the container and either alone or together with the neck provides a handle for holding the container during a dispensing operation. Removability of the pump drive unit provides for the latter to be usable with supply containers having different fluids to be dispensed.

대표청구항 ▼

[ It is claimed:] [1.] A battery operated sprayer for a fluid supply container comprising, means providing a discharge opening having an axis, variable volume pump means having a pump axis parallel to said axis of said discharge opening and having axially spaced apart fixed and movable end means, sa

[ It is claimed:] [1.] A battery operated sprayer for a fluid supply container comprising, means providing a discharge opening having an axis, variable volume pump means having a pump axis parallel to said axis of said discharge opening and having axially spaced apart fixed and movable end means, said fixed end means facing said discharge opening, means providing an inlet for connecting said pump means with fluid in said supply container, means providing an outlet for connecting said pump means with said discharge opening, means including electric motor means for axially displacing said movable end means toward and away from said fixed end means for pumping fluid from said container through said outlet and discharge opening, battery means for operating said motor means, and manually operable switch means for selectively connecting and disconnecting said motor means and said battery means.