The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 08, 1987
Filed:
Nov. 21, 1985
William F Kaukler, Huntsville, AL (US);
Abstract
A method of observing crystal formation in a transparent specimen (58 of FIG. 5) comprising the steps of melting a portion of the specimen in a heating zone (22 of FIG. 2) freezing the melted portion of the specimen 58 by a cooling zone (20 of FIG. 2) spaced from the heating zone by a gap (42) which is observable by a suitable observing means (30), controlling the temperatures of the heating and cooling zones (22 and 20) to various temperatures to create a variable temperature gradient across the gap (42) so that the freezing isotherm of the specimen (58) always remains in a substantially constant position within the gap (42) where it is observable by the observing means (30), and moving the specimen (58) longitudinally while the temperature gradient is varying.
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