Conveyors: fluid current – With means to control conveying fluid or movement of load in... – Control of conveying fluid
Reexamination Certificate
2006-09-05
2006-09-05
Bidwell, James R. (Department: 3651)
Conveyors: fluid current
With means to control conveying fluid or movement of load in...
Control of conveying fluid
C406S014000
Reexamination Certificate
active
07101120
ABSTRACT:
A system and method providing automatic adjustment of flows used to empty dry material from a pressure pot or hopper. In some embodiments, based on pressure increases in the conveying line that receives the dry material, the flow of conveying-fluid to the conveying line automatically increases and/or the flow of pressurization fluid to the hopper that assists pushing dry material out of the hopper automatically decreases and/or rotary-valve speed controlling dry-material rates from the hopper automatically slows. In some embodiments, one or more discretely or continuously adjustable critical-flow venturies (CFVs) automatically adjust mass flow of fluid based on, e.g., pintle position set by a pneumatic cylinder controlled by conveying-line pressure. Each pintle moves in and out of its CFV throat, adjusting throat area, thus setting the rate of flow. In some embodiments, pintle cross-sectional area is linearly proportional to distance from the tip of the pintle.
REFERENCES:
patent: 4014577 (1977-03-01), Clancy et al.
patent: 4101175 (1978-07-01), Kull
patent: 4490077 (1984-12-01), Shimada et al.
patent: 4586852 (1986-05-01), Oda et al.
patent: 4821467 (1989-04-01), Woodson et al.
patent: 4830545 (1989-05-01), Salter et al.
patent: 4838738 (1989-06-01), Salter et al.
patent: 4863316 (1989-09-01), Gianella et al.
patent: 5098194 (1992-03-01), Kuo et al.
patent: 5350257 (1994-09-01), Newbolt et al.
patent: 5813801 (1998-09-01), Newbolt et al.
patent: 5880378 (1999-03-01), Behring, II
patent: 6234666 (2001-05-01), Kolb
patent: 2003/0206776 (2003-11-01), Pearson
patent: 0210873 (1987-02-01), None
patent: 0210873 (1987-02-01), None
patent: WO-08501930 (1985-05-01), None
Unknown Author (Cyclonaire), “C-Series Conveyor”, (Unknown date) Internet web-address: http://www.cyclonaire.com/productresults.cfm?ID=10.
Unknown Author (Cyclonaire), “Air Injector—Convey Line”, (Unknown date) Internet web-address: http://www.cyclonaire.com/productresults.cfm?ID=6.
Unknown Author (Cyclonaire), “Turbo Inductor”, (Unknown date) Internet web-address: http://www.cyclonaire.com/productresults.cfm?ID=31.
Unknown Author (Dynamic Air), “Dense Phase Conventional Concept”, (Unknown date) Internet web-address: http://www.dynamicair.com/systems/conventional.html.
Unknown Author (Dynamic Air), “Dense Phase Fluidizing Concept”, (Unknown date) Internet web-address: http://www.dynamicair.com/systems/fluidizing.html.
Unknown Author (Dynamic Air), “Dense Phase Full Line Concept—Batch”, (Unknown date) Internet web-address: http://www.dynamicair.com/systems/fullbatch.html.
Unknown Author (Dynamic Air), “Dense Phase Full Line Concept—Continuous”, (Unknown date) Internet web-address: http://www.dynamicair.com/systems/fullcontinuous.html.
Unknown Author (NOL-TEC), “Dense Phase”, From: Powder & Bulk Engineering (Mar. 1997); Internet web-address: http://www.nol-tec.com/products-services/bulk-material-handing/dense—phase.asp.
Unknown Author (Flow Dynamics), “Sonic Nozzle / Venturi”, (Unknown date) Internet web-address: http://www.flow-dynamics.com/sonicventuriphotos.htm.
Unknown Author (Fluid Systems, Inc.), “Sonic Nozzles”, (Unknown date) Internet web-address: http://flowsystemsinc.com/sn001.htm.
Unknown Author (Flowmaxx Engineering), “Sonic Nozzles”, (Unknown date) Internet web-address: http://www.flowmaxx.com/sonic.htm, sonic nozzle operation.
Unknown Author (Whirl-Air), “Whirl-air dense phase”, (2001). Internet web-address: http://www.whirlair.com/Dense%20Pressure.htm.
Unknown Author, “Fox Adjustable Area Critical Flow Venturi”, (Unknown date). Unknown source.
Bidwell James R.
Lemaire Charles A.
Lemaire Patent Law Firm, P.L.L.C.
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