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:
Aug. 25, 1981
Filed:
Oct. 22, 1979
Applicant:
Inventor:
Raymond E Taylor, West Lafayette, IN (US);
Assignee:
Theta Industries, Inc., Port Washington, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219390 ; 338316 ; 13 25 ; 219427 ;
Abstract
An improved electric tube furnace is described in which a compressible leaf-spring attachment between the heating element tube and at least one of its supporting electric terminals compensates for linear thermal expansion of the tube without restricting access to the interior of the tube. The use of such furnace in an evacuated atmosphere for high temperature thermal diffusivity measurements is shown.