(under subclass 283) Subject matter wherein the solid propellent form is a powder charge which, when ignited, will create a hot gas which is the moving force of a reaction motor.
(1) Note. Here are the propellent grains, per se, used to propel missiles, rockets, aircraft, and spacecraft.
SEE OR SEARCH THIS CLASS, SUBCLASS:
202, for propellent ignitors with a propellent rocket grain which travels with a missile.
202.5+, for an electrically ignited powder form.
347+, for pyrotechnic rockets of the fireworks type.
374+, for reaction motors, particularly subclass 380 for a reaction motor with an ignitor means having a payload.
531, for jacketed or cased rocket propellent grains. SEE OR SEARCH CLASS
60, Power Plants,
200.1+, for reaction motors, particularly subclass 219 for methods of operating a reaction motor by using solid material in the reaction zone.
244, Aeronautics,
73+, for devices relative to and combined with an aircraft using jets of air or other fluid for propelling aircraft; and subclass 172 for spacecraft with propulsion.
