US PATENT SUBCLASS 446 / 176
OPERATED BY RELATIVELY MOVING FLUID OR PRESSURE DIFFERENTIAL

Current as of: June, 1999
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446 /   HD   AMUSEMENT DEVICES: TOYS

176OPERATED BY RELATIVELY MOVING FLUID OR PRESSURE DIFFERENTIAL {9}
177  DF  .~> Including suction cup
178  DF  .~> Including motorized fan {1}
180  DF  .~> Including variable-size fluid chamber to move fluid {5}
199  DF  .~> For changing or moving figure or figure part {2}
202  DF  .~> Including mouthpiece for blowing or sucking {3}
210  DF  .~> Convection-operated
211  DF  .~> Having jet propulsion {1}
213  DF  .~> Sounding {3}
217  DF  .~> Having fluid-driven rotatable radial blade (e.g., pinwheel) {1}

DEFINITION

Classification: 446/176

OPERATED BY RELATIVELY MOVING FLUID OR PRESSURE DIFFERENTIAL:

(under the class definition) Device which functions by utilizing either (1) the kinetic energy from a liquid or gas moving relative to the device, or (2) energy derived from gases isolated from one another and at different static pressures.

(1) Note. The mere distention of an inflatable toy is not sufficient to cause classification in this or indented subclasses. However, when the addition or movement of a fluid causes animate or other representative movements of a figure or device, the toy is properly classified here.

SEE OR SEARCH THIS CLASS, SUBCLASS:

15+, for bubble blowing devices.

30+, and 34+, for an aerodynamically supported toy.

166+, for toy operated by a gravity fed fluent material.