[특허]Handheld paint spraying apparatus with anti-sputter spray nozzle

Melendez,Henry D.

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Handheld paint spraying apparatus with anti-sputter spray nozzle

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A62C-002/08 A62C-002/00 A62C-037/08 B05B-001/14 E21F-005/04 E21F-005/00 F23D-011/38 F23D-011/36
미국특허분류(USC)	239/548; 118/315; 118/317; 239/280; 239/280.5; 239/281; 239/525; 427/427
출원번호	US-0609139 (2003-06-27)
발명자 / 주소	Melendez,Henry D.
출원인 / 주소	Melendez,Henry D.
인용정보	피인용 횟수 : 3 인용 특허 : 9

초록
▼

A fluid spray apparatus with a controlled supply of pressurized fluid delivered through a network of tubes to a spray head having a plurality of stop flow valves and nozzles that will automatically shut off the flow of fluid out of the nozzles when the pressure of the fluid drops below a threshold level. The spray head preferably has a central chamber that is open to the stop flow valves and dampens any fluctuations in pressure and volume of fluid from the source of pressurized fluid. The nozzle is preferably mounted to the stop flow valve. The stop flow valve has a biased valve head that engages a seat until the pressure exerted on the valve head by the fluid exceeds a threshold level and the valve opens. One embodiment has a quick connect coupling with a base, seal and collar that will allow spray heads of various numbers of nozzles to be quickly exchanged. Another embodiment is adapted to couple with a conventional paint spray compressor and gun.

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What is claimed is: 1. A handheld apparatus for spraying a fluid material, comprising: a plurality of spray nozzles; a manifold supporting said spray nozzles; a feed tube coupled to said manifold; said feed tube having at least a portion positioned at an offset angle in relation to a longitudinal axis through said manifold; and an adapter configured for coupling said feed tube to a flow control valve; wherein said portion of said feed tube positioned at an offset angle forms a handle; and wherein said apparatus is adapted to be supported with one hand gripping a flow control valve and the other hand gripping said handle. 2. An apparatus as recited in claim 1, wherein said handle includes an arcuate section. 3. An apparatus as recited in claim 1, wherein said offset angle is fixed. 4. An apparatus as recited in claim 1, wherein said offset angle is adjustable. 5. An apparatus as recited in claim 4, further comprising means for adjusting said offset angle. 6. An apparatus as recited in claim 5, further comprising an arcuate section of feed tubing said means for adjusting said offset angle and said manifold. 7. An apparatus as recited in claim 5 or 6, wherein said means for adjusting said offset angle comprises a swivel adapted for internal fluid flow through said swivel. 8. An apparatus as recited in claim 1, further comprising: means fluidically coupled to at least one said nozzle for receiving a pressurized fluid, allowing said fluid to flow when the pressure of the fluid exceeds a bias level, and preventing fluid flow when the pressure of the fluid falls below the bias level. 9. An apparatus as recited in claim 8, wherein said means for receiving a pressurized fluid, allowing said fluid flow to flow when the pressure of the fluid exceeds a bias level, and preventing fluid flow when the pressure of the fluid falls below the bias level, comprises: a valve body; said valve body having an intake port, a central channel and an output port; a valve seat disposed within said central channel; and a biased valve head; said valve head configured to allow fluid to flow between said intake port and said output port when the pressure of said fluid is sufficient to overcome the bias on said valve head; said valve head configured to engage said valve seat when the pressure of the flow of fluid drops to a level insufficient to overcome the bias on said valve head. 10. An apparatus as recited in claim 9, further comprising: means for increasing and decreasing said bias level on said valve head. 11. An apparatus as recited in claim 10, wherein said means for increasing and decreasing the bias on said valve head comprises: a spring configured to be adjustably compressed; and means for adjusting the compression of said spring. 12. An apparatus as recited in claim 11, wherein said means for adjusting the compression of said spring comprises a rotatable member positioned in said valve body. 13. A handheld apparatus for spraying a fluid material, comprising: a plurality of spray nozzles; a manifold supporting said spray nozzles; a feed tube coupled to said manifold; said feed tube having a least a portion positioned at an offset angle in relation to a longitudinal axis through said manifold; an adapter configured for coupling said feed tube to a flow control valve; wherein said portion of said feed tube positioned at an offset angle forms a handle; wherein said apparatus is adapted to be supported with one hand gripping a flow control valve and the other hand gripping said handle; and means fluidically coupled to at least one said spray nozzle for receiving a pressurized fluid, allowing said fluid to flow when the pressure of the fluid exceeds a bias level, and preventing fluid flow when the pressure of the fluid falls below the bias level. 14. An apparatus as recited in claim 13, wherein said means for receiving a pressurized fluid, allowing said fluid flow to flow when the pressure of the fluid exceeds a bias level, and preventing fluid flow when the pressure of the fluid falls below the bias level, comprises: a valve body; said valve body having an intake port, a central channel and an output port; a valve seat disposed within said central channel; and a biased valve head; said valve head configured to allow fluid to flow between said intake port and said output port when the pressure of said fluid is sufficient to overcome the bias on said valve head; said valve head configured to engage said valve seat when the pressure of the flow of fluid drops to a level insufficient to overcome the bias on said valve head. 15. An apparatus as recited in claim 14, further comprising: means for increasing and decreasing said bias level on said valve head. 16. An apparatus as recited in claim 15, wherein said means for increasing and decreasing the bias on said valve head comprises: a spring configured to be adjustably compressed; and means for adjusting the compression of said spring. 17. An apparatus as recited in claim 16, wherein said means for adjusting the compression of said spring comprises a rotatable member positioned in said valve body. 18. An apparatus as recited in claim 13, wherein said handle includes an arcuate section. 19. An apparatus as recited in claim 13, wherein said offset angle is fixed. 20. An apparatus as recited in claim 13, wherein said offset angle is adjustable. 21. An apparatus as recited in claim 20, further comprising means for adjusting said offset angle. 22. An apparatus as recited in claim 21, further comprising an arcuate section of feed tubing said means for adjusting said offset angle and said manifold. 23. An apparatus as recited in claim 21 or 22, wherein said means for adjusting said offset angle comprises a swivel adapted for internal fluid flow through said swivel. 24. A handheld apparatus for spraying a fluid material, comprising: a plurality of spray nozzles; a manifold supporting said spray nozzles; a feed tube coupled to said manifold; said feed tube having a least a portion positioned at an offset angle in relation to a longitudinal axis through said manifold; an adapter configured for coupling said feed tube to a flow control valve; wherein said portion of said feed tube positioned at an offset angle forms a handle; wherein said apparatus is adapted to be supported with one hand gripping a flow control valve and the other hand gripping said handle; and an anti-sputter flow control mechanism fluidically coupled to at least one said spray nozzle; said at least one anti-sputter flow control mechanism comprising (i) a valve body having an intake port, a central channel and an output port, (ii) a valve seat disposed within said central channel, and (iii) a biased valve head configured to allow fluid to flow between said intake port and said output port when the pressure of said fluid is sufficient to overcome the bias on said valve head, and further configured to engage said valve seat when the pressure of the flow of fluid drops to a level insufficient to overcome the bias on said valve head. 25. An apparatus as recited in claim 24, further comprising: means for increasing and decreasing said bias level on said valve head. 26. An apparatus as recited in claim 25, wherein said means for increasing and decreasing the bias on said valve head comprises: a spring configured to be adjustably compressed; and means for adjusting the compression of said spring. 27. An apparatus as recited in claim 26, wherein said means for adjusting the compression of said spring comprises a rotatable member positioned in said valve body. 28. An apparatus as recited in claim 24, wherein said handle includes an arcuate section. 29. An apparatus as recited in claim 24, wherein said offset angle is fixed. 30. An apparatus as recited in claim 24, wherein said offset angle is adjustable. 31. An apparatus as recited in claim 30, further comprising means for adjusting said offset angle. 32. An apparatus as recited in claim 31, further comprising an arcuate section of feed tubing said means for adjusting said offset angle and said manifold. 33. An apparatus as recited in claim 31 or 32, wherein said means for adjusting said offset angle comprises a swivel adapted for internal fluid flow through said swivel. 34. An apparatus as recited in claim 1, 13 or 24, further comprising means for coupling and decoupling said handle to a source of pressurized fluid. 35. An apparatus as recited in claim 34, wherein said means for coupling and decoupling said handle to a source of pressurized fluid comprises a separable union. 36. An apparatus as recited in claim 35, wherein said union comprises: a base member having an axial bore; a seal having an axial bore; and a collar configured to reversibly couple with said base member to facilitate alignment of said bores and engagement of said seal and said base member. 37. An apparatus as recited in claim 36, wherein said seal has at least one frustoconical surface. 38. An apparatus as recited in claim 36, further comprising a filter positioned within said base member. 39. A handheld apparatus for spraying a fluid material, comprising: a plurality of spray nozzles; a manifold supporting said spray nozzles; a feed tube coupled to said manifold; said feed tube having at least a portion positioned at an offset angle in relation to a longitudinal axis through said manifold; means for coupling and decoupling said feed tube to a source of pressurized fluid; wherein said means for coupling and decoupling said feed tube to a source of pressurized fluid comprises a separable union; wherein said union comprises: (i) a base member having an axial bore; (ii) a seal having an axial bore; and (iii ) a collar configured to reversibly couple with said base member to facilitate alignment of said bores and engagement of said seal and said base member. 40. An apparatus as recited in claim 39, further comprising: means fluidically coupled to at least one said spray nozzle for receiving a pressurized fluid, allowing said fluid to flow when the pressure of the fluid exceeds a bias level, and preventing fluid flow when the pressure of the fluid falls below the bias level. 41. An apparatus as recited in claim 40, wherein said means for receiving a pressurized fluid, allowing said fluid flow to flow when the pressure of the fluid exceeds a bias level, and preventing fluid flow when the pressure of the fluid falls below the bias level, comprises: a valve body; said valve body having an intake port, a central channel and an output port; a valve seat disposed within said central channel; and a biased valve head; said valve head configured to allow fluid to flow between said intake port and said output port when the pressure of said fluid is sufficient to overcome the bias on said valve head; said valve head configured to engage said valve seat when the pressure of the flow of fluid drops to a level insufficient to overcome the bias on said valve head. 42. An apparatus as recited in claim 39, further comprising: an anti-sputter flow control mechanism fluidically coupled to at least one said spray nozzle; said at least one anti-sputter flow control mechanism comprising (i) a valve body having an intake port, a central channel and an output port, (ii) a valve seat disposed within said central channel, and (iii) a biased valve head configured to allow fluid to flow between said intake port and said output port when the pressure of said fluid is sufficient to overcome the bias on said valve head, and further configured to engage said valve seat when the pressure of the flow of fluid drops to a level insufficient to overcome the bias on said valve head. 43. An apparatus as recited in claim 39, 40 or 42, wherein said seal has at least one frustoconical surface. 44. An apparatus as recited in claim 39, 40 or 42, further comprising a filter positioned within said base member.

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Handheld paint spraying apparatus with anti-sputter spray nozzle

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Handheld paint spraying apparatus with anti-sputter spray nozzle

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이 특허에 인용된 특허 (9)

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