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:
Feb. 05, 1980
Filed:
Mar. 29, 1978
Applicant:
Inventor:
David M Schwartz, Boston, MA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F24J / ; F28F / ; F16L / ;
U.S. Cl.
CPC ...
126443 ; 126418 ; 126451 ; 126901 ; 165 82 ; 165154 ; 285138 ; 285187 ;
Abstract
A solar energy collector comprises a metal tube through which solar-heated fluids may pass. The metal tube is maintained in a high vacuum environment, in the order of 10.sup.-6 torr, by a coaxial transparent glass tube and a pair of metal bellows sealing the ends of the glass tube to the metal tube in flexible seals designed to accommodate relative radial and linear expansion of the glass. The metal tube may be coated with a suitable absorption layer and the assembly of the metal and glass tubes may form a part of a solar system, such, for example, as a nonimaging concentrator in which the tubes are positioned longitudinally of and within an elongated parabolic reflector.