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2022
|
Invention
|
Electric actuator for single and double flap dust valves. Electric actuators for flap valves such... |
|
2018
|
Invention
|
Valve and method for flow control of large hard particle dry materials.
A valve and method for f... |
|
|
Invention
|
Valve and method for flow control large hard particle dry materials. A valve and method for flow ... |
|
2016
|
Invention
|
Dust and abrasive materials gate valve with angled valve seat. A dust and abrasive materials gate... |
|
|
Invention
|
Dust and abrasive materials gate valve with an angled valve seat. A dust and abrasive materials g... |
|
2012
|
Invention
|
Double flap valve with quick-change replaceable wear surface. A flap-gate valve having a replacea... |
|
2007
|
Invention
|
Mechanical shaft seal. An improved mechanical shaft seal to give a tight seal between relatively ... |
|
2006
|
Invention
|
Mechanical shaft seal. A mechanical shaft seal to give a tight seal between relatively rotating m... |
|
1992
|
Invention
|
Reduced height double flap dust valve. A reduced height dust valve is described which is used in ... |
|
1989
|
Invention
|
Reduce height dust valve. A dust trap comprising a pair of coaxially mounted dust valves. Each va... |
|
|
Invention
|
Gate valve. An improved gate valve is described. The valve utilizes a flat gate having a beveled ... |
|
1965
|
P/S
|
DUST VALVES AND COMPONENTS THEREOF |
