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.

Date of Patent:
Mar. 25, 2014

Filed:

Apr. 11, 2008
Applicants:

Peter J. Twarog, West Lebanon, NH (US);

Charles Marcou Hackett, Hanover, NH (US);

David Jonathan Cook, Bradford, VT (US);

Bruce Peter Altobelli, Etna, NH (US);

David L. Bouthillier, Hartford, VT (US);

Inventors:

Peter J. Twarog, West Lebanon, NH (US);

Charles Marcou Hackett, Hanover, NH (US);

David Jonathan Cook, Bradford, VT (US);

Bruce Peter Altobelli, Etna, NH (US);

David L. Bouthillier, Hartford, VT (US);

Assignee:

Hypertherm, Inc., Hanover, NH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 9/00 (2006.01); B23K 10/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An electrode for a plasma arc cutting torch which minimizes the deposition of high emissivity material on the nozzle, reduces electrode wear, and improves cut quality. The electrode has a body having a first end, a second end in a spaced relationship relative to the first end, and an outer surface extending from the first end to the second end. The body has an end face disposed at the second end. The electrode also includes at least one passage extending from a first opening in the body to a second opening in the end face. A controller can control the electrode gas flow through the passages as a function of a plasma arc torch parameter. Methods for operating the plasma arc cutting torch with the electrode are disclosed.


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