Claims
- 1. A fluid spraying system comprising:
- a spray gun further comprising:
- a first fluid input conduit;
- a selector valve having a flow channel in fluid communication with said first fluid conduit, said valve having a second fluid inlet port in fluid communication with said flow channel;
- a second fluid discharge conduit for discharging a first discharge from said selector valve flow channel, said flow channel positionable to alternatively draw from said inlet port or partially discharge to said inlet port;
- means for activating flow of a first fluid through said first fluid input conduit; and
- a means for discharging to the environment a discharge from said second fluid discharge conduit; and
- an interchangeable and disposable cartridge sealingly engageable with said spray gun, said cartridge further comprising:
- a housing for containment of a second fluid within said cartridge;
- a means for sealing engagement with said second fluid inlet port;
- a means for delivery of a metered amount of said second fluid to said selector valve, said delivery means further comprising a fitment housing having a metered fluid orifice and a means for preventing discharge of said first fluid into said cartridge housing when said selector valve is positioned to partially discharge to said inlet port.
- 2. The invention of claim 1 wherein said cartridge further comprises:
- a means for ensuring substantially a complete emptying of said second fluid from said cartridge.
- 3. The invention of claim 2 wherein said means for sealing engagement of said cartridge with said selector valve is a bellows fitment.
- 4. The invention of claim 3 wherein said second fluid inlet port in said selector valve is generally perpendicular to said flow channel.
- 5. The invention of claim 4 wherein said means for discharging to said environment further mixes and aerates said discharge from said second fluid discharge conduit when said selector valve is positioned to draw from said inlet port, said means for discharging to said environment not aerating said discharge from said second fluid discharge conduit when said selector valve is positioned to partial discharge to said inlet port.
- 6. The invention of claim 5 wherein said means for ensuring substantially complete emptying of said second fluid from said cartridge comprises a concave bottom on said housing whereby said means for delivery is extendable to the nadir of said concave bottom.
- 7. An interchangeable and disposable cartridge for use with a spray gun having a first fluid flow channel input conduit; a selector valve having a flow channel in fluid communication with said first fluid conduit, said valve having a second fluid inlet port in fluid communication with said flow channel; a second fluid discharge conduit for discharging a first discharge from said selector valve flow channel, said flow channel positionable to alternatively draw from said inlet port or partially discharge to said inlet port; a means for activating flow of a first fluid through said first fluid input conduit; and a means for discharging to the environment a discharge from said second fluid discharge conduit; said cartridge comprising:
- a housing for containment of a second fluid within said cartridge;
- a means for sealing engagement with said selector valve;
- a means for delivery of a metered amount of said second fluid to said selector valve when said selector valve is positioned to draw from said cartridge, said means for delivery further comprising a fitment housing having a metered fluid orifice and a means for preventing discharge of said first fluid into said cartridge housing when said selector valve is positioned to partially discharge to said inlet port.
- 8. The invention of claim 7 wherein said cartridge further comprises
- a means for ensuring substantially a complete emptying of said second fluid from said cartridge.
- 9. The invention of claim 8 wherein said means for sealing engagement of said cartridge with said selector valve is a bellows fitment.
- 10. The invention of claim 9 wherein said means for ensuring substantially complete emptying of said second fluid from said cartridge comprises a concave bottom on said housing whereby said means for delivery is extendable to the nadir of said concave bottom.
BACKGROUND OF THE INVENTION
This application is a continuation-in-part of copending U.S. patent application Ser. No. 265,526, filed Nov. 1, 1988, now U.S. Pat. No. 4,878,619, issued Nov. 7, 1989, entitled A Fluid Spray System Having Replaceable Cartridge.
US Referenced Citations (11)
Foreign Referenced Citations (2)
Number |
Date |
Country |
2449852 |
Sep 1975 |
DEX |
2517220 |
Jun 1983 |
FRX |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
265526 |
Nov 1988 |
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