Valves and valve actuation – With means to increase head and seat contact pressure – Separate actuators or actuator motion
Reexamination Certificate
2009-04-03
2011-11-22
Fox, John (Department: 3753)
Valves and valve actuation
With means to increase head and seat contact pressure
Separate actuators or actuator motion
C251S176000, C251S204000, C118S718000
Reexamination Certificate
active
08061686
ABSTRACT:
A pinch valve includes a valve body having a slot which is configured to allow a web of substrate material to pass therethrough. The valve body has a sealing surface which includes a first curved portion with a first radius of curvature. A dynamic seal element is configured to engage the valve body and includes a second curved portion having a second radius of curvature which is larger than the first radius of curvature. An actuator is operable to selectively bias the dynamic seal element into and out of engagement with the valve body so that when it is biased into engagement with the valve body the web of substrate material is engaged between the sealing surfaces of the dynamic seal element and the valve body. Also disclosed is a processing system which includes the pinch valve.
REFERENCES:
patent: 4423701 (1984-01-01), Nath et al.
patent: 4492181 (1985-01-01), Ovshinsky et al.
patent: 4664951 (1987-05-01), Doehler
patent: 5157851 (1992-10-01), Younan
patent: 5824566 (1998-10-01), Sano et al.
patent: 5951835 (1999-09-01), Namiki et al.
patent: 6338872 (2002-01-01), Yoshino et al.
patent: 6379994 (2002-04-01), Sano et al.
patent: 6390449 (2002-05-01), Ishigaki et al.
patent: 7100892 (2006-09-01), Iwabuchi
patent: 7134642 (2006-11-01), Seitz
patent: 7445019 (2008-11-01), Brenes et al.
patent: 2004/0040506 (2004-03-01), Ovshinsky et al.
patent: 2006/0278163 (2006-12-01), Ovshinsky et al.
“Efficiency and Throughput Advances in Continuous Roll-to-Roll a-Si Alloy of PV Manufacturing Technology” Phase II Annual Subcontract Technical Report, Jun. 1999-Aug. 2000; National Renewable Energy Laboratory, NREL/SR-520-29288, Dec. 2000.
Fox John
Gifford Krass Sprinkle Anderson & Citkowski P.C.
Uniter Solar Ovonic LLC
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