초록 ▼

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 i

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.

대표청구항 ▼

[ What is claimed is:] [1.] 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

[ What is claimed is:] [1.] 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; anda 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.