Pump sprayer

A dispensing pump having upper and lower pistons defining opposite ends of a two diameter pump chamber, the volume of which is varied by movement together of the pistons, while a small amount of relative movement of the pistons, resultin...

WF Anderson - US

Aerosol valve assembly

A dispensing pump having upper and lower pistons defining opposite ends of a two diameter pump chamber, the volume of which is varied by movement together of the pistons, while a small amount of relative movement of the pistons, resultin...

HC Kappel

Aerosol valve assembly

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HC Kappel - US

Atomizer

In order to effect the opening and closing operations of a control valve leading to a nozzle, an actuating chamber is defined by a piston and a cylinder and is made to have communication with the pressurizing chamber of the pressurizing ...

T Saito，T Kishi，Y Kakuta - US

Hand sprayer for liquids

Disclosed herein is a hand operated sprayer for liquids, in which the spraying unit is provided with a small bore which is factory sealed at the assembly by a special fitting properly located, to be eliminated by the pumping lever when f...

P Gualdi - US

PUMP FOR HAND-HELD DISPENSERS

A leakproof pump construction for hand-held dispensers, comprising a pump cylinder, an annular piston having a hollow bore which is slightly conical, said piston being reciprocatible in the cylinder between high and low positions therein...

WOLF STEIMAN - US

Sprayer usable in both erect and inverted states

A sprayer designed usable in both erect and inverted states and a pump mechanism therefor, comprising a pressure chamber consisting of a cylinder and a piston, a pair of check valves provided in opposition to each other below said pressu...

T Nozawa，T Goto，T Kishi，... - US

Adjustable spray fluid dispenser

A fluid dispenser has a discharge path outletting at a discharge orifice provided in a nozzle cap in engagement with a nipple surrounding a dispenser needle valve, the cap being adjustable axially of the needle valve so as to move an ope...

RP Grogan - US

FLUID DISPENSER

Various embodiments and methods relating to dispensing fluid are disclosed.

David R. Otis，Jeffrey A. Nielsen，Casey T. Miller，... - US

Atomiser having a plunger tube

An atomiser having a tapered pump chamber in which a valved lipped piston is slidably mounted, the piston being compressed radially inwardly by the tapered pump chamber to ensure a tight seal between the valve and its valve seat.

M Boris - US