US PATENT SUBCLASS 137 / 825
.~ Means to regulate or vary operation of 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}
825.~ Means to regulate or vary operation of device {3}
826  DF  .~.~> To vary frequency of pulses or oscillations
827  DF  .~.~> By non-fluid energy field affecting input (e.g., transducer) {1}
829  DF  .~.~> By movable element {3}

DEFINITION

Classification: 137/825

(under subclass 803) Device provided with means that is additional to the fluidic device, which means causes a change in the output stream of the device.

(1) Note. The regulation is usually applied to the control input passage, but is not limited thereto. In some instances the regulating means is applied to a feedback passage, or to an output passage, or within an interaction chamber. To be proper for this and indented subclasses, however, it should be clear that the regulating means is not inherent in the passages of the device or their configuration but rather is added to the device for purpose of regulation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

813, for a fluidic device comprising a vortex generator and

means to vary operation of the device.