US PATENT SUBCLASS 116 / 112
.~ Fluid flow
Current as of: June, 1999
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DEFINITION
Classification: 116/112
(under subclass 67) Devices in which the flow of a current of fluid or the check of its flow in a pipe or between confining walls controls an alarm.
(1) Note. Boiler-feed alarms are here included.
SEE OR SEARCH THIS CLASS, SUBCLASS:
70, for fluid pressure variation actuated alarms.
117, for fluid flow indicators.
109+, for mere liquid-level alarms.
SEE OR SEARCH CLASS 277, Seal for a Joint or Juncture, for a generic sealing means or process,
320, for a seal combined with a fluid leakage indicator, sampler, or inspection feature.
