Weir valve sampling/injection port
First Claim
1. A weir valve for fluids comprisinga valve housing having an open interior and (a) an elongate weir traversing the open interior and dividing the interior into first and second chambers at opposite sides of the weir, said second chamber being elongate and extending along the weir, said second chamber having opposite end portions and being substantially free of obstructions to fluid flow longitudinally therethrough,operating means including a diaphragm having a portion lying across the weir to prevent fluid flow over the weir and between the chambers,the housing having a flow port communicating with said first chamber and a pair of fluid flow ports respectively communicating with said second chamber at said opposite end portions.
1 Assignment
0 Petitions
Reexamination
Accused Products
Abstract
The present weir valve includes a weir disposed along a flow passage. A port at the other side of the weir is open to the flow passage when the diaphragm is lifted off the weir.
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Citations
3 Claims
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1. A weir valve for fluids comprising
a valve housing having an open interior and (a) an elongate weir traversing the open interior and dividing the interior into first and second chambers at opposite sides of the weir, said second chamber being elongate and extending along the weir, said second chamber having opposite end portions and being substantially free of obstructions to fluid flow longitudinally therethrough, operating means including a diaphragm having a portion lying across the weir to prevent fluid flow over the weir and between the chambers, the housing having a flow port communicating with said first chamber and a pair of fluid flow ports respectively communicating with said second chamber at said opposite end portions.
Specification
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- Resources
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Current AssigneeFluoroware, Inc. (Entegris Incorporated)
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Original AssigneeFluoroware, Inc. (Entegris Incorporated)
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InventorsChinnock, Robert T., McKenzie, Jeffrey J.
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Primary Examiner(s)Cohan, Alan
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Application NumberUS07/372,647Time in Patent Office538 DaysField of Search251/331, 251/145, 137/863, 137/861US Class Current137/863CPC Class CodesF16K 11/022 comprising a deformable memberF16K 7/16 the diaphragm being mechani...Y10T 137/87716 For valve having a flexible...
