Patent ID: 8910831

Claim:
A system for dispensing sprayable material comprising: a flexible container having a body, a bottom and a top forming an exterior surface and an interior space within which a material is housed and further comprising a spray tip mounted on a valve through which the sprayable material is sprayed; a dispenser configured to exert pressure on the flexible container to force the sprayable material through the tip, the dispenser comprising: an elongated housing formed with an interior portion; a movable panel on the elongated housing wherein in an open position the interior portion is exposed through which the flexible container is placed in the interior portion, and in a closed position an interior surface of the housing and an interior surface of the movable panel form a rigid enclosure contacting the exterior surface of the flexible container and counteracting pressure exerted on the flexible container; a fixed plate forming a first end of the housing with a valve seat in which the valve is seated; a piston positioned inside the housing with a first side in slidable contact with the bottom of the container; a rib connected to a second side of the piston and having an elongated slot; a lever affixed to the housing that moves between an open position and a closed position; an arm having a first end attached to the lever and a second end slidably mounted in the elongated slot; a handle attached to the housing; a trigger mounted proximate the handle that moves between a first position and a second position, wherein in the first position, the trigger causes the opening of the valve releasing the sprayable material from the container and in the second position, the valve is closed; and a biasing element in movable connection with the piston for biasing the piston against the bottom of the container.