Patent ID: 7617995

Claim:
An improved hopper gun for delivering texturing materials to a surface, having a hopper for feeding texture material via a pathway to an atomizing area for expulsion through a material orifice, a port for coupling said hopper gun to a pressurized supply of air, a gun body including a handle and trigger for initiating airflow from the pressurized supply of air to the material orifice, comprising: a cylindrical air stem disposed in said gun body, said cylindrical air stem having first and second ends and a channel extending longitudinally therein through, and said cylindrical air stem translating in said gun body between a first position occluding the pathway between the hopper and the atomizing area to foreclose texturing material from being expelled through said material orifice, and a second position recessed from first position to open the pathway allowing texturing material to enter said atomizing area and be expelled through said material orifice; a poppet housing coupled to said cylindrical stem at a first end and having an air channel in communication with said channel in said cylindrical air stem; a poppet biased against said poppet housing to close said air channel, said poppet retractable against said biasing to open said air channel and introduce air flow through said air channel; and a sleeve housing having first and second ends, said first end engaging with said poppet to open said air channel in response to an initial movement of said trigger, and said second end driving said cylindrical air stem to said second position in response to further movement of said trigger beyond said initial movement.