Valve assembly and spraying apparatus therefor

A spray gun for simultaneously spraying a plurality of fluid components comprising:

• a gun body having a handle and a trigger,
• a nozzle assembly attached to said gun body,
• a plurality of connecting means for connecting a plurality of fluid components to said gun body,
• a plurality of passageways in said gun body communicating from said plurality of connecting means to said nozzle assembly,
• a chamber in said gun body in communication with one of said passageways,
• a housing secured in said chamber,
• at least one passageway between the exterior of said housing and the interior of said chamber,
• a bore in said housing,
• an expendable valve assembly installed in said bore, said expendable valve assembly being independent of said housing,
• mechanical means for opening and closing the valve in said expendable valve assembly upon operation of said trigger,
• first conduit connecting means on said housing for delivering a first component to said expendable valve assembly,
• second conduit connecting means for delivering a second component to said at least one passageway between the exterior of said housing and the interior of said chamber,
• valve means for opening and closing the passageways through said nozzle assembly for spraying said plurality of components,
• means operatively connecting said trigger to said valve means for opening and closing said valve means,
• whereby opening of the valve in said expendable valve assembly causes said first and second components to be mixed in said chamber for delivery to said nozzle assembly through one of the passageways in said gun body.

A nozzle jet assembly comprising:

• at least one nozzle jet adapted to spray a fluid component in a substantially planar fan-shaped pattern;
• a second nozzle jet adapted to spray a fluid component in a substantially planar fan-shaped pattern;
• mounting means mounting said nozzle jets whereby the fan-shaped patterns from each jet intersect each other at a predetermined distance beyond the nozzle jets for mixing;
• said mounting means comprising:
• a nozzle body having a plurality of passageways for delivery of a plurality of fluid components to said nozzle jets,
• an annular groove in said nozzle body in communication with at least one but less than all of said passageways and said at least one jet,
• a bore located inside said annular groove in communication with at least one of said passageways not in communication with said annular groove and with said second jet, and interlocking means for interlocking the jets,
• so that the fan-shaped [pattern] patterns produced by [the two] said jets may be simultaneously rotated to any desired angle without affecting the orientation [of] between the fan-shaped [pattern from each jet] patterns ;
• whereby communication between said nozzle body and said nozzle jets is maintained constant regardless of the angular orientation of said jets with respect to said nozzle body .