.~ Liquid excluding devices for gas inlet or outlets
DEFINITION
Classification: 137/388
(under subclass 386) Apparatus wherein a liquid level responsive device is provided to exclude an external liquid from a gas inlet or outlet such as a shipboard ventilator.
SEE OR SEARCH THIS CLASS, SUBCLASS:
40+, for marine governors, i.e., control by position of a device relative to a body of water.
45+, for control by a pendulum or swinging member responsive
to position or inertia of a system.
197+, for discriminating outlets for gas in fluid separating traps or vents for diverse fluid containing pressure systems.
SEE OR SEARCH CLASS 49, Movable or Removable Closures,
21+, for a closure responsive to or directly actuated by ambient fluid.
114, Ships,
212, for ship ventilating valves.
160, Flexible or Portable Closure, Partition, or Panel,
5, for weather initiated automatic control of flexible closures and panels, e.g., screens, awnings, etc.
