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7114519 |
Normally open reverse flow flapper valve
A fluid flow actuated valve for controlling the fluid flow in a conduit comprises a support structure adapted to be mounted within the conduit and at least one flap member pivotally mounted to the...
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6615864 |
Torsion spring pool cleaner reed valve
A pool cleaner reed valve for a pulsating submersible swimming pool cleaner which has a valve body ( 22 ) configured to fit into a pulsating valve enclosure. The body includes a rectangular inlet...
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5992451 |
Reed valve for pool cleaner
An improved valve for a pulsating submergible pool cleaner having a valve body (20) with an integral relief valve (32). The valve is dual acting and utilizes a pair of opposed laminated valve...
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5592966 |
Back-flow preventer
The present invention is directed to a multi-cuspid back-flow preventer in the nature of a check valve that has a generally annular body portion with axially spaced upstream and downstream ends. A...
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4222408 |
Check valve
A check valve having a body with a passage therethrough, a pair of vanes pivotally mounted within said passage so that they open and close flow therethrough responsive to flow in one direction,...
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4091835 |
Autokinetic sampling nozzle
A sampling nozzle is disclosed which includes an inlet valve that automatlly adjusts the opening thereof in predetermined inverse porportions to the pressures applied thereto by the fluid and/or...
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3905390 |
Surge protection valve
A surge protection valve is disclosed having a body, which will permit normal flow through the body but will close automatically when the flow exceeds a predetermined amount. The valve has two...
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3179125 |
One motor mixing box
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3000395 |
Air conditioning
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