US PATENT SUBCLASS 294 / 64.2
.~ Venturi effect

Current as of: June, 1999
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294 /   HD   HANDLING: HAND AND HOIST-LINE IMPLEMENTS

64.1  DF  VACUUM {3}
64.2.~ Venturi effect

DEFINITION

Classification: 294/64.2

Venturi effect:

(under subclass 64.1) Devices wherein a fluid stream is conducted through a tube having a constricted throat to create the negative pressure.