[특허]Radial flow filter with traveling spray device

Martin, John D.

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특허 상세정보

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Radial flow filter with traveling spray device

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B08B-007/00 B08B-007/04 B08B-003/04 B08B-003/02 B08B-009/043 B08B-009/00 B01D-041/04 B08B-009/023
미국특허분류(USC)	134/172; 134/152; 134/157; 134/175; 134/176
출원번호	US-0736103 (2009-03-10)
등록번호	US-8857452 (2014-10-14)
국제출원번호	PCT/US2009/001523 (2009-03-10)
§371/§102 date	20100909 (20100909)
국제공개번호	WO2009/114128 (2009-09-17)
발명자 / 주소	Martin, John D.
출원인 / 주소	Martin, John D.
대리인 / 주소	Chauza, PC, Roger N.
인용정보	피인용 횟수 : 0 인용 특허 : 13

초록
▼

A spray device for cleaning residue from a filter member. In one embodiment, the spray device includes a tubular stem telescopically slideable in a sleeve. A coil spring surrounds the stem and resists movement of the stem out of the sleeve. A tubular halo with nozzles is fastened to the end of the tubular stem so that when a pressurized fluid is applied to the stem, the stem is forced out of the sleeve against the spring force, thereby causing the halo to travel along a cylindrical filter surface. The pressurized fluid is also jetted from the nozzles and cleans the cylindrical surface. When the pressurized fluid is removed from the spray device, the spring retracts the stem and the halo back to a rest position. In another embodiment, the halo is replaced with a nozzle head that moves within a cylindrical filter surface to be cleaned.

대표
청구항
▼

1. A spray device for use in cleaning residue from a filter apparatus, comprising: an elongated tubular stem for carrying a pressurized fluid therethrough, said elongated tubular stem including a spray member attached thereto;said spray member having one or more nozzles jetting the pressurized fluid therefrom to clean residue from the filter apparatus;a tubular sleeve and said elongated tubular stem being telescopic, whereby said elongated tubular stem can move with respect to said tubular sleeve to move said spray member along the filter apparatus to be cleaned; anda housing around said tubular sleeve and a captured chamber between said housing and said tubular sleeve, one or more purge ports in said tubular sleeve to provide a controlled flow of fluid between said tubular sleeve and said captured chamber. 2. The spray device of claim 1, wherein said tubular sleeve includes an inlet through which said pressurized fluid flows, the inlet of said tubular sleeve is located at a first end of said tubular sleeve, and said spray member extends out of a second end of said tubular sleeve. 3. The spray device of claim 2, further including a spring biasing said elongated tubular stem into a retracted position into said tubular sleeve, whereby when the pressurized fluid is coupled to the first end of said tubular sleeve, an axial force is exerted on said elongated tubular stem and forces said elongated tubular stem out of said tubular sleeve against a counterforce of said spring, and said pressurized fluid is carried through said elongated tubular stem to said spray member to be jetted therefrom to remove the residue from the filter apparatus. 4. The spray device of claim 1, wherein said spray member is formed with a tubular material and as a circular halo with said nozzles formed therein. 5. The spray device of claim 1, further including a bushing between said elongated tubular stem and said tubular sleeve, and leakage of pressurized fluid around said bushing passes through said one or more purge ports. 6. The spray device of claim 5, wherein said elongated tubular stem further includes a flange connected thereto, said flange providing a surface area to allow a force of the pressurized fluid to act thereon to move said elongated tubular stem, said flange allowing the pressurized fluid to leak around an annular edge of said flange and around said bushing and through said one or more purge ports. 7. The spray device of claim 1, further including a port formed in a sidewall of said housing for coupling a pressurized fluid therethrough into said housing and through said one or more purge ports to move said elongated tubular stem. 8. The spray device of claim 3, further including a flange attached to said elongated tubular stem to provide a surface upon which a fluid pressure can exert a force on said elongated tubular stem and extend said elongated tubular stem from said tubular sleeve, said flange providing a stop for an end of said spring. 9. The spray device of claim 7, further including a valve coupled to said port formed in said housing, said valve adapted for controlling the flow of pressurized fluid into and out of said captured chamber. 10. A spray device for use in cleaning residue from a filter having a surface to be cleaned, comprising: a tubular stem and a spray member, said tubular stem having a flange, and said spray member having a plurality of nozzles for jetting a spray onto the surface of the filter to be cleaned;a support sleeve for supporting said tubular stem therein, said support sleeve fixed to said spray device and allowing telescopic movement of said tubular stem with respect to said support sleeve;a housing surrounding said support sleeve a space between said housing and said support sleeve defining a captured chamber, said support sleeve having formed therein one or more leakage ports for allowing fluid to flow between said support sleeve and said captured chamber;a port formed in said housing, and a fluid control mechanism coupled to said port for controlling the flow of fluid into and out of said captured chamber to thereby control the movement of said tubular stem and thus said nozzles; anda fluid connection connected to said support sleeve to permit coupling of the pressurized fluid to said support sleeve and to a surface of said flange of said tubular stem to extend said tubular stem from said support sleeve during cleaning of the surface of the filter, the pressurized fluid also coupled via said tubular stem to said spray member to jet the pressurized fluid onto the surface to be cleaned. 11. The spray device of claim 10, wherein said spray member encircles the surface to be cleaned. 12. The spray device of claim 10, wherein said flange is constructed to allow leakage of the pressurized fluid therearound and into said captured chamber and through said one or more leakage ports the flow rate of the leakage of the pressurized liquid out of said captured chamber controlled by said fluid control mechanism to control the movement of the tubular stem and thus said spray member in one direction. 13. The spray device of claim 12, wherein a pressurized fluid is coupled via said fluid control mechanism into said captured chamber and applied to said flange to move said tubular stem and thus said spray member in a second direction opposite to said first direction. 14. The spray device of claim 10, further including a source of a pressurized liquid and a source of pressurized air coupled to said fluid connection to provide bursts of air in the pressurized liquid to facilitate cleaning of the filter. 15. The spray device of claim 10, wherein a hydraulic pressure is used to return said tubular stem to a retracted position within said support sleeve when the pressurized fluid is removed from said fluid connection. 16. The spray device of claim 10, wherein said purge ports function to control a travel rate of said spray member generally independent of the pressure of the pressurized fluid. 17. The spray device of claim 6, further including a spring engaging said flange for biasing said elongated tubular stem to a rest position, said spring exerting a force on said flange during a spray cycle of said spray device, where the spring force is overcome by a force of the pressurized fluid acting on the surface area of said flange to move said elongated tubular stem and spray member, despite leakage of the pressurized fluid around the annular edge of said flange. 18. A spray device for using a pressurized fluid to clean residue from a filter of a type having a surface to be cleaned, said spray device comprising: a tubular stem and a spray member, said tubular stem having a radial member, and said spray member having a plurality of nozzles for jetting a spray onto the surface of the filter to be cleaned;a tubular support sleeve for supporting said tubular stem therein, said tubular support sleeve fixed to said spray device and allowing telescopic movement of said tubular stem with respect to said tubular support sleeve;the radial member of said tubular stem extending radially between said tubular stem and an inner surface of said tubular support sleeve, but allowing leakage of the pressurized fluid around said radial member, and said radial member having a first surface on which the pressurized fluid acts to move said radial member and thus said tubular stem and spray member in a first direction;a housing surrounding said tubular support sleeve, a space between said housing and said tubular support sleeve defining a captured chamber, said tubular support sleeve having formed therein one or more leakage ports for allowing fluid to flow between said captured chamber and an internal portion of said tubular support sleeve;a port formed in said housing, and a fluid control mechanism coupled to said port for controlling a flow of the pressurized fluid into and out of said captured chamber to thereby control the movement of said tubular stem and thus said nozzles; andsaid fluid control mechanism adapted for coupling the pressurized fluid to said port so that the pressurized fluid flows through said captured chamber and into said tubular support sleeve for acting on a second surface of said radial member to thereby move said tubular stem and said spray member in a second direction opposite said first direction. 19. The spray device of claim 10, wherein said support sleeve is coupled to a source of the pressurized fluid for carrying the pressurized fluid before being sprayed out of said nozzles. 20. The spray device of claim 1, wherein said leakage ports function to control a travel rate of said spray member generally independent of the pressure of the pressurized fluid. 21. The spray device of claim 18, wherein said flow control mechanism functions to control a travel rate of said spray member generally independent of the pressure of the pressurized fluid.

이 특허에 인용된 특허 (13)

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Radial flow filter with traveling spray device

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Radial flow filter with traveling spray device

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