US PATENT SUBCLASS 431 / 257
.~.~ Make and break electrode moved

Current as of: June, 1999
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431 /   HD   COMBUSTION

254  DF  ELECTRICAL OR MECHANICAL IGNITER CORRELATED WITH BURNER FEED {2}
256  DF  .~ Switch or electrode of igniter moved by valve element or operator {1}
257.~.~ Make and break electrode moved

DEFINITION

Classification: 431/257

(under subclass 256) Apparatus wherein an element or operator means of the valve acts to move one electrode relative to another electrode of the igniter so that the electrodes come into brushing contact or break with each other to create a spark.