Source: http://www.google.com/patents/US6478552?dq=6,205,432
Timestamp: 2018-01-18 10:46:12
Document Index: 530149068

Matched Legal Cases: ['art 836', 'art 836', 'art 836', 'art 836', 'art 836', 'art.\n3', 'art.\n4', 'art.\n5', 'art.\n6', 'art.\n7', 'art.\n8', 'art.\n9']

Patent US6478552 - Fluid motivated pump - Google Patents
A device for pumping a stock fluid by supplying and discharging a motivating fluid to a unit is described. The device develops the suction and discharge of the stock fluid through the motion of a movable biasing boundary within a cavity. The movable biasing boundary divides the cavity into a stock fluid...http://www.google.com/patents/US6478552?utm_source=gb-gplus-sharePatent US6478552 - Fluid motivated pump
Publication number US6478552 B1
Application number US 09/567,778
Also published as US6582205, US20030039561, WO2001086147A1
Publication number 09567778, 567778, US 6478552 B1, US 6478552B1, US-B1-6478552, US6478552 B1, US6478552B1
Patent Citations (25), Non-Patent Citations (9), Referenced by (19), Classifications (18), Legal Events (4)
Fluid motivated pump
US 6478552 B1
1. A pump for conveying a stock fluid by supplying and expelling a motivating fluid, the pump comprising:
a plurality of units, each unit including:
a movably biasing boundary disposed within the cavity thereby defining a motivating-fluid cell and a stock-fluid cell, each cell volume variable by the movement of the movably biasing boundary within the cavity;
a motivating-fluid opening in the body for fluid communication with the motivating-fluid cell;
a stock-fluid opening in the body for fluid communication with the stock-fluid cell;
a motivating-fluid valve in fluid communication with the motivating-fluid opening to the body;
a stock-fluid valve in fluid communication with the stock-fluid opening to the body;
a motivating-fluid line and motivating-fluid discharge line in fluid communication with the motivating-fluid valve and a stock-fluid line and a stock-fluid discharge line in fluid communication with the stock-fluid valve; and
wherein the motivating-fluid line of each unit comes from the same source, the motivating-fluid discharge line of each unit directs to the same location, the stock-fluid line of each unit comes from a plurality of different sources, and the stock-fluid discharge line of each unit directs to a plurality of different locations.
2. A pump according to claim 1, wherein a motivating fluid is provided at a pressure comparable to the pressure of a municipal water supply.
wherein the motivating fluid-line of each unit comes from the same source, the motivating-fluid discharge line of each unit directs to the same location, the stock-fluid line of each unit comes from a plurality of different sources, and the stock-fluid discharge line of each unit directs to the same locations.
4. A pump according to claim 3, wherein a motivating fluid is provided at a pressure comparable to the pressure of a municipal water supply.
providing a unit having a cavity including a movable biasing boundary disposed therein to define a first cell and a second cell, each having a variable volume;
directing a second fluid at a pressure into the second cell to act on the movably biasing boundary to expand the second cell until the pressure of the second fluid is substantially balanced by the movable biasing boundary or the second cell has expanded to diminish the first cell volume to a minimum;
contracting the second cell through the movement of the movable biasing boundary to discharge the second fluid from the second cell and thereby expanding the first cell drawing the first fluid from a source into the first cell;
repeating the act of directing the second fluid thereby discharging the first fluid from the first cell, thereby conveying it;
providing a second unit having a second cavity including a second movably biasing boundary disposed therein to define a third cell and a fourth cell, each having a variable volume;
coupling the movement of the movably biasing boundary and the second movably biasing boundary;
directing of the second fluid at a preselected pressure into the unit past the second opening to act on the movably biasing boundary to expand the second cell until the preselected pressure of the second fluid, substantially balanced by the movably biasing boundary, corresponds with a permitting of the second cell to contract through the movement of the second movably biasing boundary to discharge the second fluid from a second opening of the second unit and a drawing of the first fluid from a source into a first opening of the second unit in fluid communication with the second-first cell as the second-first cell expands;
permitting of the second cell to contract through the movement of the movably biasing boundary to discharge the second fluid from the second opening and thereby drawing the first fluid from a source into a first opening of the unit as the first cell expands which corresponds with a directing of the second fluid at a preselected pressure into the second unit past a second opening therein to act on the second movably biasing boundary to expand the second-second cell until the preselected pressure of the second fluid is substantially balanced by the second movably biasing boundary; and
repeating of the directing of the second fluid to discharge the first fluid from the first cell by the first opening and the directing of the first fluid conveying it while a repeating of the directing of the second fluid to discharge the first fluid from the second-first cell by the first opening of the second unit and directing the first fluid thereby to convey it and
wherein the second fluid conveyed by the unit is substantially different from the second fluid conveyed by the second unit.
6. A method according to claim 5, wherein the second fluid comprises water provided at a pressure comparable to the pressure of a municipal water supply.
FIGS. 1A FIGS. 1B
Action of First Unit 36 Suction Pump
Valve 22 Opened Closed
Valve 110 Closed Opened
Path 86 of Valve 76 Unavailable Available
Path 82 of Valve 76 Available Unavailable
Motivating-fluid Cell 46 Contracting Expanding
Stock-fluid Cell 52 Expanding Contracting
Piston 56 Right to Left Left to Right
Action of Second Unit 34 Pump Suction
Valve 20 Closed Opened
Valve 106 Opened Closed
Path 84 of Valve 74 Unavailable Available
Path 80 of Valve 74 Available Unavailable
Motivating-fluid Cell 50 Expanding Contracting
Stock-fluid Cell 44 Contracting Expanding
FIGS. 2A FIGS. 1B
Action of Unit 236 Suction Pump
Valve 222 Opened Closed
Valve 310 Closed Opened
Path 286 of Valve 276 Unavailable Available
Path 282 of Valve 276 Available Unavailable
Motivating-fluid Cell 246 Contracting Expanding
Stock-fluid Cell 252 Expanding Contracting
Springs 244 Contracting Expanding
Piston 256 Right to Left Left to Right
Referring to separator 830 that includes pump 842, it may be any of the type used in commercial food preparation operations. Such separators may include any equipment or process that separates a grease/water mixture into a grease part and a gray water part. A particularly popular and effective separator has been the Big Dipper® separator sold by Thermaco, Inc. of Asheboro, N.C., USA. One model of the Big Dipper® separator uses a rotating oleophilic wheel to pull grease from the top of a body of a grease/water mixture to be scraped off by a blade. Another separator is that described in U.S. patent application Ser. No. 09/439,900, filed Nov. 12, 1999, entitled “Readily Serviceable Separator Unit with a Focusing Plate.” This separator 830 includes a focusing plate 832 that separates a grease/water mixture 834 into a grease part 836 and a gray water part that than passes through the separator 830 in to a sewer line 840. The grease part 836 is transmitted from the surface of the grease/water mixture 834 to a holding tank 844 for later appropriate disposal. A line 912 of the pump 842 communicates with the grease part 836. A line 902 communicates with the pump 842 to provide potable water as the motivating fluid at about nominal city water pressure (e.g., ranging from about 40 to about 50 psi). Preferably, the potable water is hot water that can be directed into the separator 830 to add heat to the mixture 834 so the grease stays liquid. Also, the pump 842 includes a grease part discharge line 917 and a potable water discharge line 905. When pump 842 is run, the grease part 836 is transmitted to the holding tank 844 and the potable water is transmitted to separator 830 just below the grease part 836.
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U.S. Classification 417/393, 417/401, 417/403
International Classification F04B9/135, F04B9/115, F04B9/111, F04B9/107, F04B43/113
Cooperative Classification F04B9/1115, F04B43/113, F04B9/115, F04B9/135, F04B9/107
European Classification F04B9/107, F04B9/115, F04B43/113, F04B9/135, F04B9/111A
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BATTEN, WILLIAM C.;KYLES, BRUCE W.;REEL/FRAME:010788/0530