US PATENT SUBCLASS 505 / 450
.~ With melting

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

Internet Version by PATENTEC © 1999      Terms of Use


505 /   HD   SUPERCONDUCTOR TECHNOLOGY: APPARATUS, MATERIAL, PROCESS

300  DF  PROCESSES OF PRODUCING OR TREATING HIGH TEMPERATURE (Tc GREATER THAN 30 K) SUPERCONDUCTOR MATERIAL OR SUPERCONDUCTOR CONTAINING PRODUCTS OR PRECURSORS THEREOF {24}
450.~ With melting {2}
451  DF  .~.~> With zone melting, zone solidification, or seed pulling
452  DF  .~.~> And coating or impregnating with melt

DEFINITION

Classification: 505/450

With melting:

(under subclass 300) Process wherein there is a step of heating to cause a change from solid to liquid state.

(1) Note. Sintering or calcining in which only surface melting of particulate is involved is excluded from this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

490, for sintering operations that involve surface melting and shaping or consolidating of particulate material.

500, for sintering operations that involve surface melting.