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:
Jul. 13, 1976
Filed:
Mar. 12, 1975
Applicant:
Inventors:
George F Felton, Jr, Chadds Ford, PA (US);
Robert E Royer, Chester, PA (US);
Assignee:
Sun Oil Company of Pennsylvania, Philadelphia, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73 1 / ; 73 64 ;
Abstract
Testing apparatus and method for use in evaluating thermal stability of quenching oil wherein a relatively small quantity of the oil contacts a metallic heating element maintained at a temperature between about 1000.degree.-1500.degree.F. The contacting oil comes from a relatively large amount of oil and just prior to contact it is at a temperature lower than the flash point of the oil. Operation is continuous and substantially compresses testing time. Following the testing an oil sample can be chemically tested to determine its degree of degradation which is an indication of its thermal stability.