[특허]Reduced-length sleeve valve

Core Industries

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특허 상세정보

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Reduced-length sleeve valve

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16K-003/24
미국특허분류(USC)	137/015.06; 137/219; 137/239; 137/625.3
출원번호	US-0948258 (2001-09-07)
발명자 / 주소	Edward, John Matejek, Brad Maitre, Erick Brewer, Eric
출원인 / 주소	Core Industries
대리인 / 주소	Baker & Hostetler LLP
인용정보	피인용 횟수 : 9 인용 특허 : 16

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A multiple opening sleeve valve is provided with a gate movable to control flow or pressure without the need for axial movement of a component through a pressure-containing seal. A gate actuator can include a drive rod and nut coupled to a gate substantially internal to the valve housing without the need for grease or similar external lubrication. The valve can provide for relatively high in-line gate-moving force, a reduction in force or torque requirements for operation, increased ease of wear-part replacement and decreased overall valve length, compared to previous valve configurations of comparable size or capacity. icating with the first channel segment at a first fluid junction, the first fluid junction being disposed between the first and second ends of the first channel segment, and a third channel segment communicating with the first channel segment at a second fluid junction, the second fluid junction being disposed between the first fluid junction and the second end of the first channel segment; applying a differential driving force between the first and second ends of the first channel segment; and selectively applying a second differential driving force through the second channel segment that is sufficient to substantially eliminate a differential driving force between the first end of the first channel segment and the first fluid junction, and selectively applying a third differential driving force through the third channel segment sufficient to substantially eliminate a differential driving force between the second fluid junction and the second end of the first channel segment. 2. The method of claim 1, wherein the first differential driving force comprises a pressure differential applied between the first and second ends of the first channel segment. 3. The method of claim 1, wherein the first differential driving force comprises an electrical differential applied between the first and second ends of the first channel segment. 4. The method of claim 1, wherein the differential driving force comprises both a pressure differential and an electrical differential between the first and second ends of the first channel segment. 5. The method of claim 1, wherein the first differential driving force comprises a pressure differential applied through the second channel segment. 6. The method of claim 1, wherein the first differential driving force comprises an electrical differential applied through the second channel segment. 7. The method of claim 1, wherein the differential driving force comprises both a pressure differential and an electrical differential through the second channel segment. 8. The method of claim 1, wherein the first differential driving force comprises a pressure differential applied through the third channel segment. 9. The method of claim 1, wherein the first differential driving force comprises an electrical differential applied through the third channel segment. 10. The method of claim 1, wherein the differential driving force comprises both a pressure differential and an electrical differential through the third channel segment. 11. The method of claim 1, wherein the first end of the first channel segment comprises a junction with at least one other channel segment. 12. The method of claim 1, wherein the first end of the first channel segment comprises a junction with at least a first fluid reservoir. 13. The method of claim 1, wherein the second end of the first channel segment comprises an junction with at least one other channel segment. 14. The method of claim 1, wherein the second end of the first channel segment comprises a junction with at least a first fluid reservoir. 15. The method of claim 1, wherein the step of applying the first differential driving force comprises applying a positive pressure to the first end of the first channel segment. 16. The method of claim 1, wherein the step of applying the first differential driving force comprises applying a negative pressure to the second end of the first channel segment. 17. The method of claim 16, wherein the step of applying the first differential driving force further comprises applying a positive pressure to the first end of the first channel segment. 18. The method of claim 1, wherein the differential driving force between the a first end of the first channel segment and the first fluid junction is at least 90% eliminated. 19. The method of claim 1, wherein the differential driving force between the first end of the first channel segment and the first fluid junction is at least 95% eliminated. 20. The method of claim 1, wherein the differentia l driving force between the first end of the first channel segment and the first fluid junction is at least 99% eliminated. 21. The method of claim 1, wherein the differential driving force between the second fluid junction and the second end of the first channel segment is at least 90% eliminated. 22. The method of claim 1, wherein the differential driving force between the second fluid junction and the second end of the first channel segment is at least 95% eliminated. 23. The method of claim 1, wherein the differential driving force between the second fluid junction and the second end of the first channel segment is at least 99% eliminated. 24. A microfluidic system, comprising: a first channel segment having first and second ends; a second channel segment communicating with the first channel segment at a first fluid junction, the first fluid junction being disposed between the first and second ends of the first channel segment; a third channel segment communicating with the first channel segment at a second fluid junction, the second fluid junction being disposed between the first fluid junction and the second end of the first channel segment; and a flow controller operably coupled to at least one of the first and second ends of the first channel segment and the second and third channel segments, and set to: apply a first differential driving force between the first and second ends of the first channel segment; selectively apply a second differential driving force to the second channel segment that is sufficient to substantially eliminate a differential driving force between the first end of the first channel segment and the first fluid junction; and selectively apply a third differential driving force through the third channel segment sufficient to substantially eliminate a differential driving force between the second fluid junction and the second end of the first channel segment. 25. The system of claim 24, wherein the first, second and third channels are disposed in a single integrated body structure. 26. The system of claim 24, wherein the flow controller comprises a pressure source operably coupled to at least one of the first and second ends of the first channel segment. 27. The system of claim 24, wherein the flow controller comprises at least first electrical power supply operably coupled to the first and second ends of the first channel segment. 28. The system of claim 24, wherein the at least one electrical power supply is operably coupled to the second and third channel segments. 29. The system of claim 24, wherein the flow controller is removably operably coupled to at least one of the first and second ends of the first channel segment. 30. The system of claim 24, further comprising a capillary element fluidly coupled to the first end of the first channel segment. 31. The system of claim 24, further comprising a capillary element fluidly coupled to the second end of the first channel segment. 32. The system of claim 24, further comprising first and second capillary elements fluidly coupled to the first channel segments, the first and second fluid junctions being disposed along the first channel segment at points between points at which the first and second capillary elements are in fluid communication with the first channel segment, at least one of the first and second capillary elements being an input pipettor. 33. The system of claim 24, further comprising an input pipettor and an output nozzle, the input pipettor being fluidly coupled to the first end of the first channel segment and the output nozzle being fluidly coupled to the second end of the first channel segment. 34. A method of sampling and dispensing materials, comprising: providing a microfluidic device that comprises: a first channel network comprising at least one valve module, the valve module comprising first, second and third channel segments in the channel network, the second and third channel segments intersecting the firs

이 특허에 인용된 특허 (16)

이 특허를 인용한 특허 피인용횟수: 9

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Reduced-length sleeve valve

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이 특허에 인용된 특허 (16)

이 특허를 인용한 특허 피인용횟수: 9

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Reduced-length sleeve valve

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이 특허에 인용된 특허 (16)

이 특허를 인용한 특허 피인용횟수: 9

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