Patent ID: 6726125
Filing Date: 2004-04-27
Classification: B05B,E04F

Abstract:
A spray gun for spraying plaster and other particulate material comprising:a barrel portion having a chamber for containing material to be sprayed, an entrance into said chamber for receiving the material to be sprayed, a slidable tube for providing a source of compressed air to said chamber and extending out of a first end of said barrel portion, and a nozzle plate at a second end of said barrel portion opposite said first end and selectively closable by said slidable tube, said slidable tube including a spring bias member which is engaged by said slidable tube and is compressed by movement of said slidable tube away from said nozzle plate and providing a spring bias to close said nozzle plate, a handle portion extending downwardly from said first end of said barrel portion and containing a slidable trigger mechanism, said slidable trigger mechanism including a finger grip member fixed on a slide shaft which is generally parallel to said slidable tube, said slide shaft of said trigger mechanism including a connecting link member at an end of said shaft opposite said finger grip member, said link member being movable on said slidable tube and trapped between an adjustable stop member on said slidable tube and a further member secured on said slidable tube, said trigger mechanism when said finger grip member is moved towards said handle portion causing said link member to engage said further member and move said slidable tube away from said nozzle plate against said spring bias such that release of said finger grip allows said bias to automatically move said slidable tube to a closed position and in doing so return said trigger mechanism to an initial position.