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Class Information
Number: 137/156
Name: Fluid handling > Diverse fluid containing pressure systems > Gas pressure discharge of liquids feed traps (e.g., to boiler)
Description: Apparatus which includes a receiving chamber which holds a liquid for subsequent discharge to a receiver at a higher pressure, which discharge is controlled or enabled by the controlled application of a gas pressure over the liquid equal to or greater than the pressure to which the liquid is discharged.

Sub-classes under this class:

Class Number Class Name Patents
137/159 Gas pressure controlled by amount of liquid in trap 0
137/157 Gas pressure controlled by amount of liquids in boiler or discharge receiver 1
137/169 Gas pressure controlled by manual or cyclic means 1

Patents under this class:

Patent Number Title Of Patent Date Issued
7645418 Gas washing device Jan. 12, 2010
5476525 Steam condensate recovery component Dec. 19, 1995
4676242 Laser knife Jun. 30, 1987
4611395 Filling system for hermetically sealed batteries Sep. 16, 1986

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