US PATENT SUBCLASS 415 / 60
PLURAL RUNNERS SUPPORTED FOR RELATIVE MOTION OR ON SEPARATE SHAFTS

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

60PLURAL RUNNERS SUPPORTED FOR RELATIVE MOTION OR ON SEPARATE SHAFTS {5}
61  DF  .~> With means for selective runner operation or drive shaft connection
62  DF  .~> Diverse type runners, blade systems or working fluid paths in runners {1}
64  DF  .~> Radial flow through concentric radially spaced blade rows
65  DF  .~> Interdigitated, oppositely extending, coaxial, axially spaced blade rows
66  DF  .~> Serially spaced in working fluid flow path {2}

DEFINITION

Classification: 415/60

(under the class definition) Apparatus comprising at least two runners*, each capable of movement relative to the other on the same supporting member, or each fixed to its own supporting member and moving independently of the other.

(1) Note. Included under this definition is a device comprising a plurality of runners*, any of which may be selectively and alternately connected to the shaft* at any one time, the other or others being held against rotation, thus in effect comprising a casing* or stator* assembly, or a pump* comprising a plurality of impellers, any of which can be selectively fixed to the shaft* for rotation therewith or left to free wheel on the shaft*, to vary the output and or discharge pressure. For such a device as described above, see subclass 61.

SEE OR SEARCH THIS CLASS, SUBCLASS:

61, for apparatus which may have a plurality of runners* and means to selectively connect and disconnect a runner* and its supporting shaft*.