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A coating material dispensing device includes a first component providing a connection to a source of coating material to be dispensed and a filter for filtering coating material to be dispensed. The first component includes a housing for housing the filter and a closure for selectively closing the

A coating material dispensing device includes a first component providing a connection to a source of coating material to be dispensed and a filter for filtering coating material to be dispensed. The first component includes a housing for housing the filter and a closure for selectively closing the housing to permit removal and replacement of the filter. The coating material dispensing device further includes a second component providing a nozzle through which the coating material is dispensed. The first and second components include first and second passageways, respectively. The first and second passageways communicate when the first and second components are assembled together to provide a flow of filtered coating material from the filter to the nozzle.

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1. A coating material dispensing device including a first component providing a connection to a source of coating material to be dispensed, a filter for filtering coating material to be dispensed, the first component including a housing for housing the filter, a closure for selectively closing the h

1. A coating material dispensing device including a first component providing a connection to a source of coating material to be dispensed, a filter for filtering coating material to be dispensed, the first component including a housing for housing the filter, a closure for selectively closing the housing to permit removal and replacement of the filter, the coating material dispensing device further including a second component providing a nozzle through which the coating material is dispensed, the first and second components including first and second passageways, respectively, the first and second passageways communicating when the first and second components are assembled together to provide a flow of filtered coating material from the filter to the nozzle, the second component including a mechanism for operating a first valve between the first passageway and the nozzle, the first valve controlling the flow of coating material from the nozzle, the dispensing device including a port for the introduction of a stream of compressed gas or mixture of gases into the stream of coating material dispensed from the nozzle, a third passageway for supplying the stream of compressed gas or mixture of gases to the nozzle, and a second valve for controlling the supply of compressed gas or mixture of gases from the port to the nozzle, the second valve coupled to the mechanism for operating the first valve to be controlled thereby.2. The apparatus of claim 1 wherein the port is provided in the first component and the third passageway is provided in the second component, the apparatus further including a fourth passageway provided in the first component and coupling the third passageway to the port.3. The apparatus of claim 1 wherein the second component includes the mechanism, the the port comprises a port for the introduction of multiple streams of compressed gas or mixture of gases into the stream of coating material dispensed from the nozzle, the third passageway supplying at least one of the multiple streams of compressed gas or mixture of gases to the nozzle, a fourth passageway for supplying at least another of the multiple streams of compressed gas or mixture of gases to the nozzle, a third valve for controlling the supply of compressed gas or mixture of gases to the fourth passageway, the third valve being continuously adjustable to vary the amount of compressed gas or mixture of gases supplied through the fourth passageway.4. The apparatus of claim 1 wherein the second component includes separate first and second portions, the first portion of the second component including the second passageway and the nozzle, the second portion of the second component including the mechanism.5. The apparatus of claim 4 wherein the first portion of the second component is constructed from a different material than the second portion of the second component.6. The apparatus of claim 1 wherein the first component includes separate first and second portions, the first portion of the first component including the housing, the closure and the first passageway, the second portion of the first component including a control port for controlling the first valve.7. The apparatus of claim 6 wherein the control port for controlling the first valve comprises a port for introducing into the apparatus an operating fluid for operating the first valve.8. The apparatus of claim 6 wherein the first portion of the first component is constructed from a different material than the second portion of the first component.9. The apparatus of claim 8 wherein the second component includes separate first and second portions, the first portion of the second component including the second passageway and the nozzle, the second portion of the second component including the mechanism.10. The apparatus of claim 9 wherein the first portion of the second component is constructed from a different material than the second portion of the second component.11. A coating material dispensing device including a first component providing a connection to a source of coating material to be dispensed, a filter for filtering coating material to be dispensed, the first component including a housing for housing the filter, a closure for selectively closing the housing to permit removal and replacement of the filter, the coating material dispensing device further including a second component providing a nozzle through which the coating material is dispensed, the first and second components including first and second passageways, respectively, the first and second passageways communicating when the first and second components are assembled together to provide a flow of filtered coating material from the filter to the nozzle, the first component including separate first and second portions, the first portion of the first component including the housing, the closure and the first passageway, the second portion of the first component including a control port for controlling a valve between the first passageway and the nozzle, the valve controlling the flow of coating material from the nozzle, the control port for controlling the valve comprising a port for introducing into the apparatus an operating fluid for operating the valve.12. A coating material dispensing device including a first component providing a connection to a source of coating material to be dispensed, a filter for filtering coating material to be dispensed, the first component including a housing for housing the filter, a closure for selectively closing the housing to permit removal and replacement of the filter, the coating material dispensing device further including a second component providing a nozzle through which the coating material is dispensed, the first and second components including first and second passageways, respectively, the first and second passageways communicating when the first and second components are assembled together to provide a flow of filtered coating material from the filter to the nozzle, the second component including a mechanism for operating a first valve between the first passageway and the nozzle, the first valve controlling the flow of coating material from the nozzle, the dispensing device including a port for the introduction of multiple streams of compressed gas or mixture of gases into the stream of coating material dispensed from the nozzle, a third passageway for supplying at least one of the multiple streams of compressed gas or mixture of gases to the nozzle, a second valve for controlling the supply of compressed gas or mixture of gases from the port to the nozzle, the second valve coupled to the mechanism for operating the first valve to be controlled thereby, a fourth passageway for supplying at least another of the multiple streams of compressed gas or mixture of gases to the nozzle, a third valve for controlling the supply of compressed gas or mixture of gases to the fourth passageway, the third valve being continuously adjustable to vary the amount of compressed gas or mixture of gases supplied through the fourth passageway.13. A coating material dispensing device including first means providing a connection to a source of coating material to be dispensed, filter means for filtering coating material to be dispensed, the first means including a housing for the filter means, closure means for selectively closing the housing to permit removal and replacement of the filter means, the coating material dispensing device further including second means providing a nozzle through which the coating material is dispensed, the first and second means including first and second passageways, respectively, the first and second passageways communicating when the first and second means are assembled together to provide a flow of filtered coating material from the filter means to the nozzle, the second means includes means for operating a first valve between the first passageway and the nozzle, the first valve controlling the flow of coating material from the nozzle, the dispensing device including a port for the introduction of a stream of compressed gas or mixture of gases into the stream of coating material dispensed from the nozzle, a third passageway for supplying the stream of compressed gas or mixture of gases to the nozzle, and a second valve for controlling the supply of compressed gas or mixture of gases from the port to the nozzle, the second valve coupled to the means for operating the first valve to be controlled thereby.14. The apparatus of claim 13 wherein the port is provided in the first means and the third passageway is provided in the second means, the apparatus further including a fourth passageway provided in the first means and coupling the third passageway to the port.15. The apparatus of claim 13 wherein the second means includes separate first and second portions, the first portion of the second means including the second passageway and the nozzle, the second portion of the second means including the means for operating the first valve.16. The apparatus of claim 15 wherein the first and second portions of the second means are constructed from different materials.17. The apparatus of claim 13 wherein the port comprises a port for the introduction of multiple streams of compressed gas or mixture of gases into the stream of coating material dispensed from the nozzle, a fourth passageway for supplying at least one of the multiple streams of compressed gas or mixture of gases to the nozzle, and a third valve for controlling the supply of compressed gas or mixture of gases through the fourth passageway.18. The apparatus of claim 17 wherein the third valve is continuously adjustable to continuously vary the amount of compressed gas or mixture of gases supplied through the fourth passageway.19. The apparatus of claim 13 wherein the first means includes separate first and second portions, the first portion of the first means including the housing, the closure means and the first passageway.20. The apparatus of claim 19 further comprising a port for introducing into the apparatus an operating fluid for operating the valve.21. The apparatus of claim 19 wherein the first portion of the first means is constructed from a different material than the second portion of the first means.22. The apparatus of claim 21 wherein the second means includes separate first and second portions, the first portion of the second means including the second passageway and the nozzle, the second portion of the second means including the means for operating the first valve.23. The apparatus of claim 22 wherein the first and second portions of the second means are constructed from different materials.24. A coating material dispensing device including first means providing a connection to a source of coating material to be dispensed, filter means for filtering coating material to be dispensed, the first means including a housing for the filter means, closure means for selectively closing the housing to permit removal and replacement of the filter means, the coating material dispensing device further including second means providing a nozzle through which the coating material is dispensed, the first and second means including first and second passageways, respectively, the first and second passageways communicating when the first and second means are assembled together to provide a flow of filtered coating material from the filter means to the nozzle, the first means includes separate first and second portions, the first portion of the first means including the housing, the closure means and the first passageway, the second portion of the first means including control means for controlling first valve means between the first passageway and the nozzle, the first valve means controlling the flow of coating material from the nozzle, the control means for controlling the valve comprising a port for introducing into the apparatus an operating fluid for operating the valve.25. A coating material dispensing device including first means providing a connection to a source of coating material to be dispensed, filter means for filtering coating material to be dispensed, the first means including a housing for the filter means, closure means for selectively closing the housing to permit removal and replacement of the filter means, the coating material dispensing device further including second means providing a nozzle through which the coating material is dispensed, the first and second means including first and second passageways, respectively, the first and second passageways communicating when the first and second means are assembled together to provide a flow of filtered coating material from the filter means to the nozzle, the second means including means for operating a first valve between the first passageway and the nozzle, the first valve controlling the flow of coating material from the nozzle, the dispensing device including a port for the introduction of multiple streams of compressed gas or mixture of gases into the stream of coating material dispensed from the nozzle, a third passageway for supplying at least one of the multiple streams of compressed gas or mixture of gases to the nozzle, and a second valve for controlling the supply of compressed gas or mixture of gases from the port to the nozzle.26. The apparatus of claim 25 wherein the second valve is coupled to the means for operating the first valve to be controlled thereby, a fourth passageway for supplying at least another of the multiple streams of compressed gas or mixture of gases to the nozzle, a third valve for controlling the supply of compressed gas or mixture of gases to the fourth passageway, the third valve being adjustable to vary the amount of compressed gas or mixture of gases supplied through the fourth passageway.