Inventor
NEWBOLT RICHARD E
US4 patents
Patents
4 patentsUS5813801ASep 29, 1998
Dense phase particulate conveying system and method with continuous air leakage management
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US5350257ASep 27, 1994
Pneumatic conveyor for granular materials
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Vacuum modulating air control valve apparatus
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US5630691AMay 20, 1997
Rotary airlock valve
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