Patents by Inventor Donald Frederick Jones

Donald Frederick Jones 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).

  • Patent number: 6744013
    Abstract: A welding torch (2) for use in gas metal arc welding, including a neck portion (4), a diffuser (6) at a first end (8) of the neck portion (4), a contact tip (10) which extends from the diffuser (6), and connector means (12) which is at a second end (14) of the neck portion (4) and which is for connecting the neck portion (4) to a power cable assembly; the neck portion (4) including an electrical conductor (16) and a longitudinally extending passageway (18); electrical current transfer from the electrical conductor (16) to the contact tip (10) being effected using first and second longitudinally separated contact areas (22, 24) on the contact tip (10); and the welding torch (2) including a gas chamber (30) which is positioned longitudinally between the two contact areas (22, 24) and radially between the contact tip (10) and the diffuser (6).
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: June 1, 2004
    Assignee: Parweld Limited
    Inventor: Donald Frederick Jones
  • Publication number: 20030057196
    Abstract: A welding torch (2) for use in gas metal arc welding, comprising a neck portion (4), a diffuser (6) at a first end (8) of the neck portion (4), a contact tip (10) which extends from the diffuser (6), and connector means (12) which is at a second end (14) of the neck portion (4) and which is for connecting the neck portion (4) to a power cable assembly; the neck portion (4) comprising an electrical conductor (16) and a longitudinally extending passageway (18); electrical current transfer from the electrical conductor (16) to the contact tip (10) being effected using first and second longitudinally separated contact areas (22, 24) on the contact tip (10); and the welding torch (2) including a gas chamber (30) which is positioned longitudinally between the two contact areas (22, 24) and radially between the contact tip (10) and the diffuser (6).
    Type: Application
    Filed: August 23, 2002
    Publication date: March 27, 2003
    Inventor: Donald Frederick Jones