US PATENT SUBCLASS 505 / 451
.~.~ With zone melting, zone solidification, or seed pulling


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  DF  .~ With melting {2}
451.~.~ With zone melting, zone solidification, or seed pulling


DEFINITION

Classification: 505/451

With zone melting, zone solidification, or seed pulling:

(under subclass 450) Process wherein a small localized area is subjected to melting and solidification before an adjacent zone becomes melted or wherein a single crystal seed is utilized to pull a solidifying single crystal mass from a melt (e.g., Czochralski, etc.).