Hand holdable pump spray system
AssigneeOMS Investments, Inc.
InventorPaul M. Havlovitz
Life of this patent
Estimating the term…
Abstract
A hand holdable pump spray system where the pump mechanism is in the hand holdable wand rather than in the liquid container. The wand may be held with one hand while the pump handle is extended with the other hand. This creates a pressure differential which allows liquid to flow from the container into the wand. A biased spring provides force against the liquid so that when a thumb actuated trigger opens the nozzle, the liquid will be ejected. Should all of the liquid not be ejected, there is a liquid return mechanism which opens a check valve and allows the liquid to return to the container through a supply tube connecting the wand and the container.
Claims22
A hand holdable pump spray apparatus comprising in combination:
- a hand holdable generally tubular housing having first and second end portions;
- a piston having two faces movable in said housing;
- a handle connected to said piston and located outside said housing adapted to be gripped by a user to move said piston toward said first end portion of said housing;
- a first spring located in said housing between one face of said piston and said first end portion of said housing to bias said piston toward said second end portion of said housing;
- a first chamber formed in said housing between the other face of said piston and said second end portion of said housing;
- a second chamber in connection with said housing operatively connected to a reservoir containing a liquid to be sprayed;
- a first valve separating said second chamber from said first chamber;
- a second valve mounted in said housing communicating with said first chamber;
- a nozzle connected to said second end portion of said housing;
- a second spring located in said housing to engage and bias said nozzle;
- and
- a hand operated trigger connected to said nozzle to move said nozzle and said second valve whereby liquid in said first chamber may be ejected through said nozzle.
A hand holdable pump spray system comprising in combination:
- a container to hold a liquid to be sprayed;
- and
- a hand holdable pump spray apparatus separated from said container and including a housing having first and second end portions, a piston having two faces movable in said housing, a handle connected to the piston adapted to be gripped by a user to move said piston, a first spring located in said housing between one face of said piston and said first end portion of said housing to bias said piston toward said second end portion of said housing, a first chamber formed in said housing between the other face of said piston and said second end portion of said housing, a second chamber in communication with said second end portion of said housing operably connected to the liquid in said container, a first valve separating said second chamber from said first chamber, a second valve mounted in said second end portion of said housing communicating with said first chamber, a nozzle connected to said second end portion of said housing;
- a second spring located in said housing to engage said nozzle, a trigger connected to said nozzle to move said nozzle and said second valve whereby liquid in said first chamber may be ejected through said nozzle.
A hand holdable pump spray system comprising in combination:
- a container for containing a liquid to be sprayed;
- a supply tube being removably connectable to said container;
- a hand holdable pump spray apparatus including a housing having first and second end portions, a first sleeve and a second sleeve connected to said supply tube;
- a piston movable in said housing;
- a first chamber formed in the housing between said piston and said second end portion;
- a second chamber formed in said second sleeve;
- a nozzle connected to said housing;
- a first valve located in said housing separating said first chamber from said second chamber;
- a second valve located in said first sleeve of said housing separating said first chamber and said nozzle;
- an opening in said housing for receiving said supply tube and communicating said supply tube with said second chamber;
- a handle connected to said piston to move said piston relative to said housing;
- a plunger engageable with said first valve;
- and
- a trigger to open said second valve.
Dependencies are inferred from the claim text.