US PATENT SUBCLASS 123 / 495
.~ With fuel pump

Current as of: June, 1999
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123 /   HD   INTERNAL-COMBUSTION ENGINES

434  DF  CHARGE FORMING DEVICE (E.G., POLLUTION CONTROL) {29}
495.~ With fuel pump {11}
496  DF  .~.~> Variable rate of injection stroke
497  DF  .~.~> Electric fuel pump {2}
500  DF  .~.~> Variable beginning and ending of pumping stroke
501  DF  .~.~> Variable beginning of pumping stroke {1}
503  DF  .~.~> Variable ending of pumping stroke
504  DF  .~.~> Variable stroke
505  DF  .~.~> Fuel pump and intake air controls interconnected
506  DF  .~.~> Having pressure relief valve
507  DF  .~.~> Pumping member driven by a piston or valve of the internal combustion engine
508  DF  .~.~> Pumping member driven by the internal combustion engine valve operating mechanism
509  DF  .~.~> Specific location or mounting of pump

DEFINITION

Classification: 123/495

With fuel pump:

(under subclass 434) Subject matter (a) for supplying fuel to a charge-forming device, or (b) for supplying fuel directly to the working cylinder or combustion chamber of an engine.

SEE OR SEARCH CLASS

184, Lubrication,

26+, for lubricating oil pumps.

261, Gas and Liquid Contact Apparatus,

34.1+, for accelerator pumps for carburetors.

417, Pumps, 236+, and 321+ for pumps, per se, and pumps with nominal engine recitation for a statement of the line between Class 123 and Class 417; see the search note to Class 417 in the class definition of this class.

418, Rotary Expansible Chamber Devices,

40+, for rotary expansible chamber devices, per se.