US PATENT SUBCLASS 123 / 406.37
.~.~.~.~.~ Having specific knock detecting means

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


123 /   HD   INTERNAL-COMBUSTION ENGINES

406.11  DF  SPARK IGNITION TIMING CONTROL {5}
406.12  DF  .~ Electronic control {10}
406.19  DF  .~.~ Closed loop feedback control of spark timing {5}
406.26  DF  .~.~.~ Combustion condition responsive {4}
406.29  DF  .~.~.~.~ Engine knock responsive {4}
406.37.~.~.~.~.~ Having specific knock detecting means {3}
406.38  DF  .~.~.~.~.~.~> Knock frequency distribution pattern responsive
406.39  DF  .~.~.~.~.~.~> Knock signal counting
406.4  DF  .~.~.~.~.~.~> And specific system component mounting or location details

DEFINITION

Classification: 123/406.37

Having specific knock detecting means:

(under subclass 406.29) Subject matter including a particular structural aspect of either (a) the transducer for sensing a characteristic of the force of the shock wave or (b) the complete path of an electric current, including the generating apparatus, intervening resistors, or capacitors for sensing a characteristic of the force of the shock wave.

SEE OR SEARCH CLASS

73, Measuring and Testing,

35.07+, for explosive-detonation or knock measuring and testing.

701, Data Processing: Vehicles, Navigation, and Relative Location,

111, for a digital or programmed data processing system associated with an internal combustion engine, designed to control or sense vibration, roughness, or knocking condition of the engine, where significant details of the mechanical construction of the component or subsystem within a vehicle are not claimed.