| 摘要 |
A hand-held spray gun including a handle section, a barrel section mounted forwardly of the handle section, and a nozzle section mounted forwardly of the barrel section. The handle section has a liquid inlet at a rearward end thereof and is adapted to direct pressurized liquid in a straight longitudinal path through a relatively inexpensive plastic tube which functions both as a liquid conduit and as a mechanism for moving a valve follower of the gun between open and closed conditions in response to actuation of a trigger. The handle section further has a pressurized air inlet which communicates with the nozzle section through an air passageway defined between the liquid conduit tube and a barrel section housing for facilitating liquid atomization of the spray discharge. The nozzle tip has a multiplicity of spray orifices which are selectively locatable into operative position and at least some of which include an annular sealing member such that upon positioning of the spray orifice into operative position the associated sealing member blocks communication of pressurized air, enabling the gun to be operated in a purely hydraulic, non air assisted, spray mode.
|
