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:
Sep. 15, 2015
Filed:
Dec. 10, 2007
Applicant:
Thomas Lewin, Hallstahammar, SE;
Inventor:
Thomas Lewin, Hallstahammar, SE;
Assignee:
Sandvik Intellectual Property AB, Sandviken, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 3/48 (2006.01); H05B 3/62 (2006.01); H05B 3/02 (2006.01); H05B 3/06 (2006.01); H05B 3/10 (2006.01); H05B 3/64 (2006.01);
U.S. Cl.
CPC ...
H05B 3/64 (2013.01);
Abstract
Electric heating device with a radiant tube and an electrical heating element arranged in the radiant tube as well as a protective insert of electrically conductive material. The protective insert is arranged between the radiant tube and the electrical heating element. The device allows the use of higher element power.