US PATENT SUBCLASS 137 / 822
.~ Plural power inputs to single device

Current as of: June, 1999
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137 /   HD   FLUID HANDLING

803  DF  FLOW AFFECTED BY FLUID CONTACT, ENERGY FIELD OR COANDA EFFECT (E.G., PURE FLUID DEVICE OR SYSTEM) {11}
822.~ Plural power inputs to single device {1}
823  DF  .~.~> Intersecting at interaction region (e.g., comparator) {1}

DEFINITION

Classification: 137/822

(under subclass 803) Device provided with only one (as claimed in the patent thereto) fluidic device, and further provided with two or more passages each supplying a stream of power input fluid to that device.

(1) Note. A careful distinction should be made between patents disclosing a stream of power input fluid and at least one stream of control input fluid, and patents (provided for in this and indented subclasses) disclosing two streams of power input fluid. The first category is usual and found in many subclasses, see especially subclasses 834+ and 841. To fit the second category and be proper for original classification herein, the claimed disclosure of the patent should be clear that two power input streams are provided. Further disclosure of a control input will not bar classification herein. For further comment on this point, see (2) Note in the definition of subclass 824.

SEE OR SEARCH THIS CLASS, SUBCLASS:

806, for a device or system using two or more different kinds of fluid.

SEE OR SEARCH CLASS

239, Fluid Sprinkling, Spraying, and Diffusing,

543+, for a fluid sprinkling system wherein one fluid stream impinges upon another.