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. 23, 1983
Filed:
Feb. 17, 1978
Applicant:
Inventors:
Mario Posnansky, 3006 Bern (Canton of Bern), CH;
Urs Utiger, Oberonz, CH;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47J / ;
U.S. Cl.
CPC ...
215 / ; 220410 ; 220420 ; 220441 ; 126443 ;
Abstract
In a flask comprising a closed vessel with double walls enclosing a vacuum, layers of substances capable of absorbing light-rays and/or of selectively acting upon light-rays are applied to enable more radiant energy to reach the space enclosed by the inner wall than that space can radiate to the outside. Thus an increasing amount of heat is supplied to the space enclosed by the inner wall, and cold matter introduced into that space is heated. The effect of the light-rays can be increased by designing part of a protective jacket of the flask so that it is capable of being swung open and of acting as a reflector in that position.