US PATENT SUBCLASS 137 / 892
.~.~.~ With selectively operated flow control means in inlet

Current as of: June, 1999
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137 /   HD   FLUID HANDLING

561 R  DF  SYSTEMS {32}
602  DF  .~ Multiple inlet with single outlet {4}
888  DF  .~.~ Combining by aspiration {5}
892.~.~.~ With selectively operated flow control means in inlet {1}
893  DF  .~.~.~.~> Flow control means is located in aspirated fluid inlet {1}

DEFINITION

Classification: 137/892

With selectively operated flow control means in inlet:

(under subclass 888) System including means located in an

inlet flow line or in an admission passage to selectively control the flow of fluid flowing from the inlet flow line into the portion of the system in which the fluids are entrained and combined.

(1) Note. The means for selectively controlling flow in an inlet flow line or admission passage may comprise control means for venting the inlet flow line or admission passage, as, for example, for allowing a portion of the motivating fluid located upstream of the admission passage to escape from the motivating fluid inlet line or for allowing air to be admitted into the aspirated fluid inlet line.