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Class Information
Number: 137/179
Name: Fluid handling > Diverse fluid containing pressure systems > Fluid separating traps or vents > Discriminating outlet for liquid > With non-discriminating gas vent or liquid discharge
Description: Separating traps provided with a nondiscriminating gas vent, an additional nondiscriminating liquid outlet or an additional control of the discriminating liquid outlet, the additional control being such as to give a nondiscriminating action to the discriminating outlet.

Sub-classes under this class:

Class Number Class Name Patents
137/180 Abnormal pressure responsive liquid blow-off or drain 2
137/181 Manual control 14

Patents under this class:

Patent Number Title Of Patent Date Issued
8431278 Passive water drain Apr. 30, 2013
7578967 Steam collapsing apparatus and system Aug. 25, 2009
6279593 Electric steam trap system and method of draining condensate Aug. 28, 2001
6148844 Condensate removal device Nov. 21, 2000
5687754 Automatic drain valve with internal pressure booster valve Nov. 18, 1997
5501246 Air/vapour separation device Mar. 26, 1996
5422003 Gas-liquid separation flow rate regulator in sewage disposal tank Jun. 6, 1995
4708157 Air eliminator for fluid handling systems Nov. 24, 1987
4685486 Condensate separating and discharging device with apertured float cover Aug. 11, 1987
4396016 Intravenous solution flow regulator Aug. 2, 1983
4345767 Fluid seal element for compressed air filter Aug. 24, 1982
4262668 Fixed volume infusion device Apr. 21, 1981
4173222 Apparatus for controllably administering a parenteral fluid Nov. 6, 1979
4044953 Cage for flailing tube Aug. 30, 1977

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