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:
Dec. 16, 2008
Filed:
Apr. 17, 2006
Applicants:
Brian Bowman, Westlake, OH (US);
Michael Frastaci, Parma, OH (US);
Terrence Patrick Wells, Strongsville, OH (US);
Inventors:
Brian Bowman, Westlake, OH (US);
Michael Frastaci, Parma, OH (US);
Terrence Patrick Wells, Strongsville, OH (US);
Assignee:
GrafTech International Holdings Inc., Parma, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H05B 7/12 (2006.01); H05B 7/06 (2006.01); H05B 7/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electrode joint is presented, the joint including two joined graphite electrodes having blocked threads and having a locking ring interposed between the electrodes, the locking ring composed of a material having a coefficient of friction such that the tendency of the electrode joint to unscrew is retarded.