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. 09, 1985
Filed:
Jul. 30, 1984
Applicant:
Inventors:
Francis R Cartier, Manhattan Beach, CA (US);
David N Stager, Manhattan Beach, CA (US);
Roy M Acker, Los Angeles, CA (US);
Assignee:
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Primary Examiner:
Int. Cl.
CPC ...
F64G / ; F28D / ;
U.S. Cl.
CPC ...
165 41 ; 16510426 ; 2441 / ; 244163 ;
Abstract
A sphere which provides a high emissivity, uniform, isothermal calibration ource which is fully instrumented for surface temperature and range measurements. The characteristics are achieved by using high thermal conductivity copper hemispheres disposed in spaced, concentric relation and containing a distributed heat pipe therebetween to minimize surface temperature gradients.