IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0051460
(2002-01-22)
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발명자
/ 주소 |
- Fox, John
- Sanderson, Robert A.
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출원인 / 주소 |
- R. Sanderson Management, Inc.
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
27 인용 특허 :
109 |
초록
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A metering pump includes an actuating mechanism, and a plurality of piston cylinders coupled to the actuating mechanism. A first of the cylinders has a working volume that differs from a second of the cylinders. The actuating member is centrally located and the cylinders are arranged radially about
A metering pump includes an actuating mechanism, and a plurality of piston cylinders coupled to the actuating mechanism. A first of the cylinders has a working volume that differs from a second of the cylinders. The actuating member is centrally located and the cylinders are arranged radially about the actuating mechanism. The working volume of the cylinders can be varied by adjusting the spacing of the cylinders from the actuating mechanism, thus varying the stroke of pistons housed within the cylinders, and/or by providing the cylinders with different inner diameters. A method of metering fluids includes independently adjusting stroke of a plurality of pistons to adjust the volume of metered fluid, and selecting different cylinder diameters to adjust the volume of metered fluid.
대표청구항
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1. A metering pump, comprising:an actuating mechanism, a plurality of non-rotating piston cylinders arranged radially about the actuating mechanism and coupled to the actuating mechanism, a first of the cylinders having a working volume that differs from a second of the cylinders, a piston housed wi
1. A metering pump, comprising:an actuating mechanism, a plurality of non-rotating piston cylinders arranged radially about the actuating mechanism and coupled to the actuating mechanism, a first of the cylinders having a working volume that differs from a second of the cylinders, a piston housed within the first cylinder, and a piston housed within the second cylinder, a stroke of the piston of the first cylinder being independently adjustable. 2. The metering pump of claim 1 wherein the first cylinder is spaced from the actuating mechanism a distance that differs from a spacing of the second cylinder from the actuating mechanism.3. The metering pump of claim 2 further comprising an adjustment mechanism configured to vary the spacing of the cylinders from the actuating mechanism.4. The metering pump of claim 3 wherein the cylinders are pivotably connected to a housing and the adjustment mechanism comprises a screw and nut.5. The metering pump of claim 1 wherein the first cylinder has a dimension defining an inner volume that differs from a corresponding dimension of the second cylinder.6. The metering pump of claim 5 wherein the dimension is an inner diameter of the cylinder.7. The metering pump of claim 1 comprising at least three cylinders.8. The metering pump of claim 7 wherein each cylinder has a working volume that differs from the other cylinders.9. The metering pump of claim 1 wherein the actuating mechanism comprises a transition arm coupled to a stationary support and a rotary member.10. The metering pump of claim 9 wherein the transition arm is coupled to the stationary support by a universal-joint.11. The metering pump of claim 9 wherein the transition arm includes a plurality of drive arms and a plurality of joints, each drive arm being coupling to one of the cylinders by a respective joint.12. The metering pump of claim 11 wherein the joint provides three degrees of freedom.13. The metering pump of claim 12 wherein the joint provides four degrees of freedom.14. The metering pump of claim 1 wherein the actuating mechanism is centrally located.15. The metering pump of claim 1, further comprising: a drive shaft, the actuating mechanism being coupled to the drive shaft.16. The metering pump of claim 15 wherein the actuating mechanism is centrally located.17. The metering pump of claim 15, wherein a first cylinder of the plurality of piston cylinders has a first inlet port and a first outlet port, a second cylinder of the plurality of piston cylinders has a second inlet port and a second outlet port, and the first inlet port and the second inlet port are isolated from each other.18. The metering pump of claim 15 wherein the actuating mechanism comprises a transition arm coupled to a stationary support and a rotary member.19. The metering pump of claim 18 wherein the rotary member is coupled to the drive shaft.20. The metering pump of claim 18, wherein the transition arm is coupled to the stationary support by a universal-joint.21. The metering pump of claim 1 wherein the actuating mechanism comprises a transition arm coupled to a stationary support by a universal-joint.22. The metering pump of claim 21, wherein a first cylinder of the plurality of piston cylinders has a first inlet port and a first outlet port, a second cylinder of the plurality of piston cylinders has a second inlet port and a second outlet port, and the first inlet port and the second inlet port are isolated from each other.23. The metering pump of claim 1, wherein the first cylinder has a first inlet port and a first outlet port, the second cylinder has a second inlet port and a second outlet port, and the first inlet port and the second inlet port are isolated from each other.24. The metering pump of claim 1 wherein the actuating mechanism is coupled to a rotary member.25. The metering pump of claim 1 wherein the actuating mechanism includes a transition arm coupled to a rotary member, the rotary member configured to rotate about an axis intersecting the rotary member, the transition arm including a drive member coupled to the rotary member off-axis of the rotary member, the drive member configured to circumscribe a circle about the axis while other portions of the transition arm are non-rotating about the axis.26. The metering pump of claim 25 wherein the actuating mechanism is centrally located.27. The metering pump of claim 1 wherein at least part of the actuating mechanism is located between the piston cylinders.28. The metering pump of claim 24 wherein in at least one operating configuration the axis of rotation of the rotary member and the longitudinal axis of at least one piston are parallel.29. The metering pump of claim 10 wherein at least part of the actuating mechanism is located between the piston cylinders.30. A method of metering fluids, comprising:independently adjusting stroke of one piston of a plurality of pistons to adjust the volume of metered fluid, each piston being housed within a non-rotating cylinder having a fluid inlet and a metered fluid outlet, selecting different cylinder diameters to adjust the volume of metered fluid and actuating the pistons to pump at least two different fluids. 31. The method of claim 30 further comprising independently adjusting stroke of each piston of the plurality of pistons.32. The method of claim 30 further comprising selecting different cylinder diameters for each cylinder.33. A metering pump, comprising:an actuating mechanism, and a plurality of non-rotating, fluid-pumping piston cylinders arranged radially about the actuating mechanism and coupled to the actuating mechanism, a first of the cylinders having a working volume that differs from a second of the cylinders, the first and second cylinders being arranged for pumping different fluids, wherein a central axis of the first cylinder is spaced from a central axis of the actuating mechanism a distance that differs from a spacing of a central axis of the second cylinder from the central axis of the actuating mechanism. 34. The metering pump of claim 33, wherein a first cylinder of the plurality of piston cylinders has a first inlet port and a first outlet port, a second cylinder of the plurality of piston cylinders has a second inlet port and a second outlet port, and the first inlet port and the second inlet port are isolated from each other.35. The metering pump of claim 33 further comprising an adjustment mechanism configured to vary the spacing of the cylinders from the actuating mechanism.36. The metering pump of claim 33 comprising at least three cylinders.37. The metering pump of claim 36 wherein each cylinder has a working volume that differs from the other cylinders.38. The metering pump of claim 33 wherein the actuating mechanism comprises a transition arm coupled to a stationary support by a universal-joint.39. The metering pump of claim 33 wherein the actuating mechanism includes a transition arm coupled to a rotary member, the rotary member configured to rotate about an axis intersecting the rotary member, the transition arm including a drive member coupled to the rotary member off-axis of the rotary member, the drive member configured to circumscribe a circle about the axis while other portions of the transition arm are non-rotating about the axis.40. A metering pump, comprising:an actuating mechanism, a plurality of piston cylinders arranged radially about the actuating mechanism and coupled to the actuating mechanism, a first of the cylinders having a working volume that differs from a second of the cylinders, and an adjustment mechanism configured to independently vary the spacing of one piston cylinder of the plurality of piston cylinders from the actuating mechanism to independently adjust the stroke of a piston in the one piston cylinder. 41. The metering pump of claim 40, wherein a first cylinder of the plurality of piston cylinders has a first inlet port and a first outlet port, a second cylinder of the plurality of piston cylinders has a second inlet port and a second outlet port, and the first inlet port and the second inlet port are isolated from each other.42. The metering pump of claim 27, wherein a first cylinder of the plurality of piston cylinders has a first inlet port and a first outlet port, a second cylinder of the plurality of piston cylinders has a second inlet port and a second outlet port, and the first inlet port and the second inlet port are isolated from each other.43. The metering pump of claim 40 wherein the cylinders are pivotably connected to a housing and the adjustment mechanism comprises a screw and nut.44. The metering pump of claim 40 comprising at least three cylinders.45. The metering pump of claim 40 wherein each cylinder has a working volume that differs from the other cylinders.46. The metering pump of claim 40 wherein at least part of the actuating mechanism is located between the piston cylinders.47. The metering pump of claim 40 wherein the actuating mechanism comprises a transition arm coupled to a stationary support by a universal-joint.48. The metering pump of claim 40 wherein the cylinders are non-rotating.49. The metering pump of claim 40 wherein the actuating mechanism includes a transition arm coupled to a rotary member, the rotary member configured to rotate about an axis intersecting the rotary member, the transition arm including a drive member coupled to the rotary member off-axis of the rotary member, the drive member configured to circumscribe a circle about the axis while other portions of the transition arm are non-rotating about the axis.50. A pump for mixing fluids, comprising:an actuating mechanism; a plurality of non-rotating piston cylinders arranged radially about the actuating mechanism and coupled to the actuating mechanism, each cylinder housing a piston that pumps one of a plurality of fluids into a mixture and each cylinder having a working volume chosen to coarsely adjust a mix percentage of each fluid in the mixture; and an adjustment mechanism configured to independently adjust the stroke of each piston in each cylinder to finely adjust the mix percentage of each fluid in the mixture. 51. The metering pump of claim 50, wherein a first cylinder of the plurality of piston cylinders has a first inlet port and a first outlet port, a second cylinder of the plurality of piston cylinders has a second inlet port and a second outlet port, and the first inlet port and the second inlet port are isolated from each other.52. The metering pump of claim 50 wherein the cylinders are pivotably connected to a housing and the adjustment mechanism comprises a screw and nut.53. The metering pump of claim 50 comprising at least three cylinders.54. The metering pump of claim 50 wherein each cylinder has a working volume that differs from the other cylinders.55. The metering pump of claim 50 wherein at least part of the actuating mechanism is located between the piston cylinders.56. The metering pump of claim 50 wherein the actuating mechanism comprises a transition arm coupled to a stationary support by a universal-joint.57. The metering pump of claim 50 wherein the actuating mechanism includes a transition arm coupled to a rotary member, the rotary member configured to rotate about an axis intersecting the rotary member, the transition arm including a drive member coupled to the rotary member off-axis of the rotary member, the drive member configured to circumscribe a circle about the axis while other portions of the transition arm are non-rotating about the axis.58. A metering pump, comprising:an actuating mechanism, and a plurality of fluid-pumping piston cylinders arranged radially about the actuating mechanism and coupled to the actuating mechanism, the actuating mechanism being between the cylinders, a first of the cylinders having a working volume that differs from a second of the cylinders, the first and second cylinders being arranged for pumping different fluids, wherein a central axis of the first cylinder is spaced from a central axis of the actuating mechanism a distance that differs from a spacing of a central axis of the second cylinder from the central axis of the actuating mechanism. 59. The metering pump of claim 58 further comprising an adjustment mechanism configured to vary the spacing of the cylinders from the actuating mechanism.60. The metering pump of claim 58 comprising at least three cylinders.61. The metering pump of claim 60 wherein each cylinder has a working volume that differs from the other cylinders.62. The metering pump of claim 58 wherein the actuating mechanism comprises a transition arm coupled to a stationary support by a universal-joint.63. The metering pump of claim 58 wherein the first cylinder has a first inlet port and a first outlet port, the second cylinder has a second inlet port and a second outlet port, and the first inlet port and the second inlet port are isolated from each other.64. The metering pump of claim 58 wherein the actuating mechanism includes a transition arm coupled to a rotary member, the rotary member configured to rotate about an axis intersecting the rotary member, the transition arm including a drive member coupled to the rotary member off-axis of the rotary member, the drive member configured to circumscribe a circle about the axis while other portions of the transition arm are non-rotating about the axis.65. The metering pump of claim 58 further comprising isolating a first fluid inlet from a second fluid inlet.
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