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Class Information
Number: 137/246.11
Name: Fluid handling > With cleaner, lubrication added to fluid or liquid sealing at valve interface > Liquid supplied at valve interface > Plural feed
Description: Valves wherein plural feed means (other than gravity) are provided for the sealing liquid to cause flow thereof.

Patents under this class:

Patent Number Title Of Patent Date Issued
8622069 Valve device in a unit for conducting a product, unit of this type and method for operating the same Jan. 7, 2014
6698444 Freeing of seized valves Mar. 2, 2004
4733803 Particulate dispensing apparatus Mar. 29, 1988
4664140 Reversing valve May. 12, 1987
4506696 Gas tight plug valve Mar. 26, 1985
4372338 High pressure valve assembly Feb. 8, 1983

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