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:
Jun. 11, 1985
Filed:
Mar. 03, 1983
Hans Guntermann, Essen, DE;
Gerhard Skreba, Essen, DE;
Elektro-Thermit GmbH, Essen, DE;
Abstract
A self-opening closure for casting crucibles used in aluminothermic reactions and made of a high mechanical-strength, high boiling point inorganic material producing no gases when heated, the closure being composed of one or more sealing disk(s) made of a fibrous aluminum silicate, the ratio of the total thickness of the sealing disk(s) to its (their) diameter being 1:5 to 1:1, the melting point of the aluminum silicate being equal to or exceeding 1650.degree. C., and a metal plate between 0.1 and 3 mm thick mounted on the sealing disk(s).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile