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2018
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Invention
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Valve and method for flow control of large hard particle dry materials.
A valve and method for f... |
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|
Invention
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Valve and method for flow control large hard particle dry materials. A valve and method for flow ... |
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2016
|
Invention
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Dust and abrasive materials gate valve with angled valve seat. A dust and abrasive materials gate... |
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Invention
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Dust and abrasive materials gate valve with an angled valve seat. A dust and abrasive materials g... |
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2012
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Invention
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Double flap valve with quick-change replaceable wear surface. A flap-gate valve having a replacea... |
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2007
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Invention
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Mechanical shaft seal. An improved mechanical shaft seal to give a tight seal between relatively ... |
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2006
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Invention
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Mechanical shaft seal. A mechanical shaft seal to give a tight seal between relatively rotating m... |
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1992
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Invention
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Reduced height double flap dust valve. A reduced height dust valve is described which is used in ... |
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1989
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Invention
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Reduce height dust valve. A dust trap comprising a pair of coaxially mounted dust valves. Each va... |
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Invention
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Gate valve. An improved gate valve is described. The valve utilizes a flat gate having a beveled ... |
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1987
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Invention
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Reduced height dust valve. ABSTRACT A double dump airlock valve having a reduced headroom require... |
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1965
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P/S
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DUST VALVES AND COMPONENTS THEREOF |
