US PATENT SUBCLASS 123 / 638
.~.~ System fires multiple spark plugs per cylinder

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

594  DF  HIGH TENSION IGNITION SYSTEM {28}
636  DF  .~ Multiple spark ignition system {3}
638.~.~ System fires multiple spark plugs per cylinder

DEFINITION

Classification: 123/638

System fires multiple spark plugs per cylinder:

(under subclass 636) Subject matter wherein an engine cylinder contains more than one spark plug, each plug fired once each complete engine operating cycle.