Patent ID: 7377455

Claim:
An apparatus for spraying a material, comprising: a container holding said material; a sprayer configured to direct said material onto a surface, wherein said sprayer comprises: a generally cylindrically shaped tube having opposed first and second ends; a piston rod inserted into said first end of said tube, said piston having opposed first and second terminuses, said first terminus being exterior to said tube, said second terminus located within said tube; a handle on said first terminus; a seal on said second terminus; a transition connected to said second end of said tube, through which passes said delivery tube; a nozzle connected to said transition, through which passes said delivery tube; and an orifice in one end of said nozzle through which passes said material; a delivery tube connected between said container and said sprayer such that there is material communication between said sprayer and said container; an air control means attached to the sprayer to release air from within the sprayer; a generally cylindrically shaped air volume chamber connected to said sprayer; an opening in said sprayer to allow for the passage of air between said sprayer and said air volume chamber.