A flowline connection apparatus having a pivotally mounted funnel an upright frame, which is a permanent...
A dynamically balanced pneumatic relay amplifier and a current-to-pneumatic converter are disclosed. ...
A pipeline pig comprises a body and at least one flexible annular outwardly extending seal on and around...
Scraper for determining the position of pipelines with at least one scraper body and on the outer circumference...
The internal tree cap of this invention has an isolation sleeve that stabs into a receptacle in the upper...
An improved compressor shaft and impeller for an overhung centrifugal compressor are disclosed that enable...
A test tool having a body, a mandrel, a ball valve with an actuating mechanism and a bore is lowered ...
A rotary valve is opened and closed with a combination incremental rachet mechanism and a continuous ...
The subject matter of the present invention is the optimization of a capacitive liquid level sensor which...
An internal diffuser on a diffuser stem is disposed in a bore of a rotary control valve for attenuating...
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