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AssigneeNottingham-Spirk Design Associates, Inc.
InventorsJohn R. Nottingham, John W. Spirk, Jr., Richard O. McCarthy, Dale A. Panasewicz
Estimating the term…
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.
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.
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, said motor means including an output shaft rotatable about a motor axis parallel to said pump axis, said means for axially displacing said movable end means including means for translating rotation of said output shaft to axial reciprocation of said movable end means, said means for translating rotation including cam means rotatable with said drive shaft and cam follower means on said movable end means, said cam means including a cam face in a plane intersecting said motor axis at an angle thereto, and said cam follower means including a follower surface in a plane intersecting said pump axis at an angle thereto.
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, manually operable switch means for selectively connecting and disconnecting said motor means and said battery means, said pump means including a cylinder coaxial with said pump axis and having axially opposite ends, an end wall at one of said ends and the other of said ends being open, a cylindrical pump member coaxial with said pump axis and having open and closed ends and flexible wall means between said ends thereof, said open end of said pump member being in said cylinder adjacent said end wall thereof, said means for axially displacing said movable end means including actuator means connected to said closed end of said pump member, and said closed end of said pump member including an end wall transverse to said pump axis and a reentrant portion of said flexible wall means integral with said end wall.
A battery operated sprayer for a fluid supply container comprising, a pump and discharge unit mountable on said supply container and including means providing a discharge opening, pump means, means providing an inlet for connecting said pump means with fluid in said supply container, and means providing an outlet for connecting said pump means with said discharge opening, and a pump drive unit separate from said pump and discharge unit and having mounted and dismounted positions on said supply container relative to said pump and discharge unit, said pump drive unit including electric motor means, battery means for operating said motor means, and switch means for selectively connecting and disconnecting said motor means and said battery means, and said motor means and pump means in said mounted position of said pump drive unit including means interengaging for said motor means to operate said pump means for pumping fluid from said container through said discharge opening when said switch means connects said motor means and said battery means.
A battery operated sprayer for a fluid supply container comprising, a pump and discharge unit mountable on said supply container and including means providing a discharge opening, pump means, means providing an inlet for connecting said pump means with fluid in said supply container, and means providing an outlet for connecting said pump means with said discharge opening, and a pump drive unit separate from said pump and discharge unit and having mounted and dismounted positions on said supply container relative to said pump and discharge unit, said pump drive unit including electric motor means, battery means for operating said motor means, and switch means for selectively connecting and disconnecting said motor means and said battery means, said motor means and pump means in said mounted position of said pump drive unit including means interengaging for said motor means to operate said pump means for pumping fluid from said container through said discharge opening when said switch means connects said motor means and said battery means, said supply container having a body portion and a neck extending upwardly therefrom and having an open upper end, said pump and discharge unit being mounted on said open upper end, means for releasably interengaging said pump drive unit and said pump and discharge unit in said mounted position of said pump drive unit, and said pump drive unit including a housing having upper and lower housing portions, said upper and lower housing portions in said mounted position of said pump drive unit having means respectively releasably interengaging said upper housing portion with said pump and discharge unit and releasably interengaging said lower housing portion with said body portion of said supply container.
A battery operated sprayer for a fluid supply container comprising, a pump and discharge unit mountable on said supply container and including means providing a discharge opening, pump means, means providing an inlet for connecting said pump means with fluid in said supply container, and means providing an outlet for connecting said pump means with said discharge opening, and a pump drive unit separate from said pump and discharge unit and having mounted and dismounted positions on said supply container relative to said pump and discharge unit, said pump drive unit including electric motor means, battery means for operating said motor means, and switch means for selectively connecting and disconnecting said motor means and said battery means, said motor means and pump means in said mounted position of said pump drive unit including means interengaging for said motor means to operate said pump means for pumping fluid from said container through said discharge opening when said switch means connects said motor means and said battery means, said supply container having a body portion and a neck extending upwardly therefrom and having an open upper end, said pump and discharge unit being mounted on said open upper end, means for releasably interengaging said pump drive unit and said pump and discharge unit in said mounted position of said pump drive unit, said pump means having a generally horizontal pump axis and axially spaced apart fixed and movable end means, said fixed end means facing said discharge opening, said motor means having an output shaft parallel to said pump axis, said means interengaging for said motor means to operate said pump means including means on said output shaft and means on said movable end means of said pump means, said output shaft being rotatable, said means on said output shaft and said means on said movable end means interengaging for translating rotation of said output shaft to axial displacement of said movable end means, said means on said output shaft being first cam means, and said means on said movable end means being second cam means.
A battery operated sprayer for a fluid supply container comprising, a pump and discharge unit mountable on said supply container and including means providing a discharge opening, pump means, means providing an inlet for connecting said pump means with fluid in said supply container, and means providing an outlet for connecting said pump means with said discharge opening, and a pump drive unit separate from said pump and discharge unit and having mounted and dismounted positions on said supply container relative to said pump and discharge unit, said pump drive unit including electric motor means, battery means for operating said motor means, and switch means for selectively connecting and disconnecting said motor means and said battery means, said motor means and pump means in said mounted position of said pump drive unit including means interengaging for said motor means to operate said pump means for pumping fluid from said container through said discharge opening when said switch means connects said motor means and said battery means, said supply container having a body portion and a neck extending upwardly therefrom and having an open upper end, said pump and discharge unit being mounted on said open upper end, means for releasably interengaging said pump drive unit and said pump and discharge unit in said mounted position of said pump drive unit, said pump means having a generally horizontal pump axis and axially spaced apart fixed and movable end means, said fixed end means facing said discharge opening, said motor means having an output shaft parallel to said pump axis, said means interengaging for said motor means to operate said pump means including means on said output shaft and means on said movable end means of said pump means, said pump means including a cylinder coaxial with said pump axis and having axially opposite ends, an end wall at one of said ends, the other of said ends being open, said end wall providing said fixed end means of said pump means, a cylindrical pump member coaxial with said pump axis and having open and closed ends and flexible wall means between said ends thereof, said closed end providing said movable end means of said pump means, said open end of said pump member being in said cylinder adjacent said end wall thereof, and said closed end of said pump member including an end wall transverse to said pump axis and a reentrant portion of said flexible wall means integral with said end wall.
Dependencies are inferred from the claim text.