US PATENT SUBCLASS 137 / 320
.~.~ With valved closure or bung

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

315  DF  WITH REPAIR, TAPPING OR ASSEMBLY MEANS {6}
317  DF  .~ Tapping a pipe, keg, or apertured tank under pressure {4}
320.~.~ With valved closure or bung {3}
321  DF  .~.~.~> Combined rotary and longitudinal movement of valve
322  DF  .~.~.~> Longitudinal movement of valve
323  DF  .~.~.~> Rotary movement of valve

DEFINITION

Classification: 137/320

(under subclass 317) Devices in which the system is provided with a valved opening, the valve having no externally operable actuator, and the connectable means either opens the system valve as the coupling is made or carries an actuator which engages the valve as a result of the coupling, being manipulated subsequently to open and close the valve.

SEE OR SEARCH THIS CLASS, SUBCLASS:

223+, for inflatable article filling chuck and/or stem.

454, for removable barometric reservoirs having valves which are operated by engagement with the receiving and supporting receptacle and see the search notes thereto.

614, for disconnectable flow pipe sections with plural serial valves.

SEE OR SEARCH CLASS 141, Fluent Material Handling, With Receiver or Receiver Coacting Means,

346, for filling devices for receivers having keyed or other special coupling means.

217, Wooden Receptacles,

99+, for barrel bungs of the valved type.