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:
Mar. 15, 1988
Filed:
Aug. 07, 1985
Mark F Warchol, New Kensington, PA (US);
Ronald C Wojnar, Upper Burrell Township, West Moreland County, PA (US);
Aluminum Company of America, Pittsburgh, PA (US);
Abstract
A method of determining the gas content of a body or flow of molten metal of a known alloy. The method includes the steps of providing a carrier gas and directing the same into the molten metal. The carrier gas creates in the molten metal free surfaces such that molecules of the gas content migrate to the free surfaces and accumulate in the carrier gas. The method next determines the occurrence of equilibrium between the carrier gas and the gas content in the molten metal, the magnitude of equilibrium pressure, and the temperature of the molten metal. Signals are developed representing respectively the equilibrium pressure and temperature, which signals are directed to a computing device. Information is also directed to the computing device that represents the solubility of the gas content in the alloy of the molten metal under test. The computing device calculates the gas content of the molten metal from the equilibrium pressure, molten metal temperature and solubility information to provide a direct and accurate readout of the gas content.