US PATENT SUBCLASS 431 / 274
.~.~ Mechanical movement operated abrasive member

Current as of: June, 1999
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431 /   HD   COMBUSTION

267  DF  FRICTIONAL, CHEMICAL OR PERCUSSIVE TYPE IGNITER {3}
273  DF  .~ Spark projecter, e.g., flint and abrasive striker, etc. {3}
274.~.~ Mechanical movement operated abrasive member {1}
275  DF  .~.~.~> Stored energy actuated; detent, latch or overcenter release

DEFINITION

Classification: 431/274

(under subclass 273) Apparatus including a mounting structure for the element, a mounting structure for the abrasive surface and a slidable or pivotal means distinct from the mounting structure to move the abrasive surface relative to the element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

129+, for a burner head cover operatively interrelated with an igniter, most of which are of the mechanically operated abrasive type.