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. 09, 2008
Filed:
Feb. 16, 2005
Bruce R. Tremblay, Minot, ME (US);
Kevin L. Mcloughlin, Auburn, ME (US);
Bruce R. Tremblay, Minot, ME (US);
Kevin L. McLoughlin, Auburn, ME (US);
Elmet Technologies, Inc., Lewiston, ME (US);
Abstract
A method of making cathodes includes forming a first intermediate assembly having a current wire in juxtaposition with an outer mandrel wire and a basket wire wound around the first two wires. The first intermediate assembly is wound around a central mandrel to form a second intermediate assembly. Pulses of energy are used to produce an alloy solder joint between the current wire and the basket wire at selected locations. The second intermediate assembly is cut into segments, and the mandrels are removed. This results in a cathode having a coiled current wire and a basket wire wound around the current wire, with the basket wire being bonded to the current wire by the alloy solder joints. The cathode includes a central bore that is substantially free of the alloy solder joint.