US PATENT SUBCLASS 102 / 329
.~.~.~ Valve-type seal

Current as of: June, 1999
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102 /   HD   AMMUNITION AND EXPLOSIVES

301  DF  BLASTING {11}
325  DF  .~ Contained pressurized fluid blasting charge {3}
328  DF  .~.~ Contained fluid exit seal controlled by fluid pressure {1}
329.~.~.~ Valve-type seal {1}
330  DF  .~.~.~.~> Automatically operated

DEFINITION

Classification: 102/329

Valve-type seal:

(under subclass 328) Subject matter wherein the closure for the outlet of the container is a valve.

(1) Note. Here are outlet valves operated by a difference between the pressure of the blasting fluid within the container and atmospheric pressure when the container is vented to the atmosphere by some type of manually operated value.

SEE OR SEARCH CLASS

251, Valves and Valve Actuation,

12+, for fluid actuated valves.