US PATENT SUBCLASS 435 / 286.1
.~ Including condition or time responsive control means

Current as of: June, 1999
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435 /   HD   CHEMISTRY: MOLECULAR BIOLOGY AND MICROBIOLOGY

283.1  DF  APPARATUS {9}
286.1.~ Including condition or time responsive control means {4}
286.2  DF  .~.~> Including position control {2}
286.5  DF  .~.~> Including liquid flow, level, or volume control
286.6  DF  .~.~> Including gas flow or pressure control
286.7  DF  .~.~> Including mixing or agitation control

DEFINITION

Classification: 435/286.1

Including condition or time responsive control means:

(under subclass 283.1) Apparatus with means to sense a process parameter which actuates means to alter a process parameter, or with timing means which actuates means which alters a process parameter.

(1) Note. Included herein is the mere use of a programmed computer and associated detection and actuation devices for process control.

SEE OR SEARCH CLASS

73, Measuring and Testing, for apparatus for making tests and measurements not otherwise provided for.

137, Fluid Handling,

88+, for systems for controlling the mixture of a plurality of fluids in response to the sensing of a condition or

characteristic of the mixture, note particularly subclass 93 in which the control is in response to a sensing of a chemical property.

196, Mineral Oils: Apparatus, 132, and 141 for combinations of apparatus for making a test or measurement and means for controlling a reaction provided for in that class.

346, Recorders, for recording apparatus, per se.

364, Electrical Computers and Data Processing Systems, 528.01+ for chemical process control or monitoring systems, and

528.41, for control based on an elapsed time.

422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing, for apparatus for (a) determining qualitatively or quantitatively the presence of one or more chemical constituents of a material which involve a chemical reaction, and (b) combinations of a test or measurement and means for regulating a chemical reaction.

702, Data Processing: Measuring, Calibrating, or Testing,

19+, for data processing in biological or biochemical applications, subclasses 22+ for chemical analysis data processing, and subclasses 176+ for time duration or rate data processing for measurements.