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:
Jan. 04, 1977
Filed:
Jul. 01, 1975
Applicant:
Inventors:
Otto Schumacher, Biberbach, DT;
Hans Jonas, Gersthofen, DT;
Assignee:
Sigri Elektrographit GmbH, Augsburg, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27D / ;
U.S. Cl.
CPC ...
13 24 ; 13 23 ;
Abstract
System for supplying current to a group of high-current resistance furnaces including a plurality of transformers switchingly connectible sequentially to the individual furnaces singly and together in parallel, the group of furnaces being subdivided into two subgroups of furnaces, each having one of said transformers associated therewith, and including a third transformer selectively switchingly connectible in parallel to the one and the other of the two subgroups of furnaces.
Schumacher, Otto. (1977). System for supplying current to a group of high-current resistance (U.S. Patent No. 4001487). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4001487
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile