US PATENT SUBCLASS 29 / 880
.~.~.~.~.~.~.~.~ By impregnating a porous mass

Current as of: June, 1999
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29 /   HD   METAL WORKING

592  DF  METHOD OF MECHANICAL MANUFACTURE {54}
592.1  DF  .~ Electrical device making {14}
825  DF  .~.~ Conductor or circuit manufacturing {8}
874  DF  .~.~.~ Contact or terminal manufacturing {3}
876  DF  .~.~.~.~ By assembling plural parts {5}
877  DF  .~.~.~.~.~ With bonding {1}
878  DF  .~.~.~.~.~.~ Of fused material {1}
879  DF  .~.~.~.~.~.~.~ Metal {1}
880.~.~.~.~.~.~.~.~ By impregnating a porous mass

DEFINITION

Classification: 29/880

By impregnating a porous mass:

(under subclass 879) Process wherein a portion of the element joint is composed of substance having a plurality of interstices and further wherein the fused material is applied to and penetrates the substance interstices.

SEE OR SEARCH CLASS

200, Electricity: Circuit Makers and Breakers,

264, for infiltrated porous contact structure, per se.