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. 12, 2018
Filed:
Mar. 21, 2016
Pyrotek High-temperature Industrial Products Inc., Chicoutimi, CA;
PYROTEK HIGH-TEMPERATURE INDUSTRIAL PRODUCTS INC., Chicoutimi, Quebec, CA;
Abstract
A control pin for controlling the flow of molten metal through a down spout in a casting process is provided. The control pin comprises a body having an elongated shape, a lower portion insertable in the down spout, and a terminal end, opposite the lower portion. The body includes a central core, preferably a hollow tube or a rod of alumina or mullite; a heating element disposed around the central core, and an intermediate layer surrounding the central core and encasing the heating element, the intermediate layer being made of a solidified ceramic putty. Finally, an outer shell, preferably made of woven fiber reinforcing fabric in a matrix of ceramic, surrounds the intermediate layer.