(under subclass 157) Apparatus in which the distinct structure comprises means forming the sole outlet from a confined combustion space, said means being a jet nozzle having a restricted throat; said restriction producing the elevated pressure in the combustion space and causing combustion products to discharge as a high speed jet.
SEE OR SEARCH CLASS
60, Power Plants,
200.1+, for a specific combustion products generator supplying a nozzle where the sole specific disclosure is to obtain thrust.
175, Boring or Penetrating the Earth,
14, for a means forming a hole in the earth by directly applying heat and in which the combustion is confined in a chamber having a restricted orifice. 239, Fluid Sprinkling, Spraying, and Diffusing,
265.11+, for a reaction motor discharge nozzle discharging material from a chamber or mixer not specialized by structure to combustion even though the chamber or mixer is nominally a "combustion chamber"; and subclasses 127.1+ for a similar reaction motor discharge nozzle with cooling structure.
