Cosmetic fluid dispenser
AssigneeLava Industries, Inc.
InventorDerik Zhang
Life of this patent
Estimating the term…
Abstract
A cosmetic fluid dispenser, comprising in combination a vertically elongated housing structure containing upper and lower compartments, the lower compartment configured to receive and store cosmetic fluid; a dispenser tube projecting vertically from the lower interior of the lower compartment, upwardly into the upper compartment; a plunger movable vertically in the housing, the housing structure including a rotor rotatable to drive the plunger downwardly for effecting fluid displacement into and upwardly in the dispenser tube; and a valve for preventing inadvertent leakage of fluid from the tube, and characterized as openable in response to use of the dispenser.
Claims14
A cosmetic fluid dispenser, comprising in combination:
- a) a vertically elongated housing structure containing upper and lower compartments, the lower compartment configured to receive and store cosmetic fluid,
- b) a dispenser tube projecting vertically from the lower interior of the lower compartment, upwardly into the upper compartment,
- c) a plunger movable vertically in the housing,
- d) the housing structure including a rotor rotatable to drive the plunger downwardly for effecting fluid displacement into and upwardly in the dispenser tube,
- e) and a valve for preventing inadvertent leakage of fluid from the tube, and characterized as openable in response to use of the dispenser
- f) the valve being connected to the rotor to open in response to finger pressure communicated to the rotor, pushing rotor structure toward the valve in series with the tube.
A cosmetic fluid dispenser, comprising in combination:
- a) a vertically elongated housing structure containing upper and lower compartments, the lower compartment configured to receive and store cosmetic fluid,
- b) a dispenser tube projecting vertically from the lower interior of the lower compartment, upwardly into the upper compartment,
- c) a plunger movable vertically in the housing,
- d) the housing structure including a rotor rotatable to drive the plunger downwardly for effecting fluid displacement into and upwardly in the dispenser tube,
- e) the plunger having a lower annular guide flange extending adjacent a cylindrical wall of the housing, and an inner flange extending adjacent the tube and having threaded engagement therewith,
- f) wherein the two flanges have local flexible interconnection, allowing the outer flange to frictionally yet slidably engage the housing bore,
- g) a valve for preventing inadvertent leakage of fluid from the tube, and characterized as openable in response to the use of the dispenser,
- h) the valve being connected to the rotor to open in response to finger pressure communicated to the rotor, pushing rotor structure toward the valve in series with the tube.
A cosmetic fluid dispenser, comprising in combination:
- a) a vertically elongated housing structure containing upper and lower compartments, the lower compartment configured to receive and store cosmetic fluid,
- b) a dispenser tube projecting vertically from the lower interior of the lower compartment, upwardly into the upper compartment,
- c) a plunger movable vertically in the housing,
- d) the housing structure including a rotor rotatable to drive the plunger downwardly for effecting fluid displacement into and upwardly in the dispenser tube,
- e) screw threading operatively interconnecting the rotor and said plunger, to convert rotary motion of the motor into vertical motion of the plunger,
- f) a valve for preventing inadvertent leakage of fluid from the tube, and characterized as openable in response to the use of the dispenser,
- g) the valve being connected to the rotor to open in response to finger pressure communicated to the rotor, pushing rotor structure toward the valve in series with the tube.
Dependencies are inferred from the claim text.