US PATENT SUBCLASS 124 / 65
.~.~.~ By plunger moving within cylinder

Current as of: June, 1999
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124 /   HD   MECHANICAL GUNS AND PROJECTORS

56  DF  FLUID PRESSURE {9}
63  DF  .~ Provided by movement of user-actuated, projector-mounted pressure member {2}
64  DF  .~.~ To create surge of pressure {1}
65.~.~.~ By plunger moving within cylinder {1}
66  DF  .~.~.~.~> By spring-driven plunger {1}

DEFINITION

Classification: 124/65

(under subclass 64) Apparatus wherein the component is a piston having a periphery substantially conforming to the interior surface of a tube, and the piston reciprocates inside of the tube to pressurize fluid within the tube.

(1) Note. The cylinder in which pressure is created may be the barrel that guides the missile to be impelled or may be an auxiliary cylinder that confines the pressurized fluid for release into the barrel that guides the missile.