US PATENT SUBCLASS 422 / 110
.~.~ Controls flow rate of a material to or from a contact zone

Current as of: June, 1999
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422 /   HD   CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING

105  DF  CONTROL ELEMENT RESPONSIVE TO A SENSED OPERATING CONDITION {6}
108  DF  .~ Control element responds proportionally to a variable signal from a sensor {2}
110.~.~ Controls flow rate of a material to or from a contact zone {1}
111  DF  .~.~.~> Material is an input to contact zone

DEFINITION

Classification: 422/110

Controls flow rate of a material to or from a contact zone:

(under subclass 108) Apparatus wherein the control element regulates the flow rate of material into or out of a contact zone.