US PATENT SUBCLASS 415 / 13
WITH CONTROL MEANS RESPONSIVE TO NON-CYCLIC CONDITION SENSING, CENTRIFUGAL ACTUATION OR TORQUE

Current as of: June, 1999
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415 /   HD   ROTARY KINETIC FLUID MOTORS OR PUMPS

13WITH CONTROL MEANS RESPONSIVE TO NON-CYCLIC CONDITION SENSING, CENTRIFUGAL ACTUATION OR TORQUE {13}
14  DF  .~> Casing, runner, or shaft position or extent of motion responsive
15  DF  .~> With input signal of independent condition
16  DF  .~> With testing means for speed control
17  DF  .~> Plural diverse condition responsive (e.g., temperature and pressure, speed and level, etc.)
18  DF  .~> Control of clutch or brake surface
19  DF  .~> Including control of starting motor or runner blade starting position
20  DF  .~> Control of working fluid and diverse apparatus part {1}
23  DF  .~> Responsive to working fluid discharge angle from blade or vane
24  DF  .~> Responsive to liquid level or weight
25  DF  .~> Centrifugally initiated valve controlling fluid flow in shaft or runner
26  DF  .~> Responsive to moving member developed fluid force, current or pressure {3}
30  DF  .~> By shaft speed or torque responsive means {5}
47  DF  .~> Temperature or fluid force responsive member {2}

DEFINITION

Classification: 415/13

(under the class definition) Apparatus comprising (1) means to sense a condition which may or may not occur, a change in such condition, a lack of such condition, or a result of such condition, and a separate control means for an apparatus part, the sensing means causing or permitting operation of the separate control means without the intervention of a human attendant, (2) means mounted so as to rotate and assume various radial positions in accordance with the rate of its rotation, and at a predetermined rate, to operate a control means for an apparatus part, or (3) means responding to a turning or twisting motion of a rotating member to impose a control on an apparatus part.

(1) Note. A timer clockwork or cyclical mechanism which operates at predetermined intervals of time or motion is not included under this definition of automatic control; a float which has a portion thereof also acting as a valving element is included under this definition; a check valve or similar valve element which is directly responsive to fluid flow is not included; a valve having connected thereto a separate surface which responds to pressure is included.

(2) Note. The centrifugally actuated element must be one in addition to the minimum required for the apparatus under the class definition, i.e., a runner* and a means to direct working fluid* to, from or through the runner*. Thus, a centrifugally moved blade* or connecting means between the blade* and its support is not proper subject matter under this definition and will be found in subclasses 140+.