US PATENT SUBCLASS 261 / 86
.~.~.~.~ Gas trapping
Current as of:
June, 1999
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261 /
HD
GAS AND LIQUID CONTACT APPARATUS
75
DF
CONTACT DEVICES
{11}
83
DF
.~ Rotating {1}
84
DF
.~.~ Impeller {4}
85
DF
.~.~.~ Hollow shaft {3}
86
.~.~.~.~ Gas trapping
DEFINITION
Classification: 261/86
The hollow shaft discharging gases from the receptacle, the gases being trapped by the impellers.