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. 07, 1992
Filed:
Jun. 29, 1988
Applicant:
Inventors:
Volker Lehmann, Munich, DE;
Helmut Foell, Munich, DE;
Assignee:
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219209 ; 219553 ; 2504931 ; 392432 ;
Abstract
The black radiator contains a doped, crystalline silicon member having a honeycombed surface and contains a controllable electrical heating mechanism with which the silicon member can be heated. The heating mechanism has a heating coil that is a doped silicon structure that is oppositely doped to the doping of the silicon member and to which a controllable voltage is applied. The manufacturing method provides that the silicon member having a honeycombed surface be manufactured from an n-silicon member by electrolytic etching.