.~ Having means to control flow around propeller {3}
67
.~.~ Nozzle (Kort-Type)
DEFINITION
Classification: 440/67
Nozzle (kort-type):
(under subclass 66) Device wherein an annular member in the form of a projecting spout completely surrounds the propeller to control the flow around the propeller.
(1) Note. These devices differ from a jet drive in that the propeller is located at the throat of the nozzle and the flow diverges at the exit. The propeller itself drives the vessel through the water.
SEE OR SEARCH THIS CLASS, SUBCLASS:
38, for devices wherein a propeller creates a fluid jet which reacts with the surrounding fluid to drive the vessel through the water.
