Patents by Inventor Donald W. Yonker, Jr.

Donald W. Yonker, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Gas metal arc welding wire
    Patent number: 4987288
    Abstract: An iron based filler wire is described for use in gas shielded arc welding and includes between about 0.05 to 0.09 weight percent carbon, 1.10 to 1.40 weight percent manganese, 0.70 to 1.00 weight percent silicon, 0.00 to 0.025 weight percent phosphorus, 0.00 to 0.225 weight percent sulfur and 0.0 to 0.3 weight percent copper. The obtained weldment produced in CO.sub.2 shielding gas possesses an average Charpy V-notch impact value of at least 45 ft.-lbs. at -20.degree. F.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: January 22, 1991
    Assignee: National-Standard Company
    Inventor: Donald W. Yonker, Jr.