Patents by Inventor Alan Parry

Alan Parry 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).

  • Spatter reduction technique
    Patent number: 5603854
    Abstract: A method of metal-inert-gas arc welding which reduces spatter in the welding process, wherein a liquid (8), preferably a hydrocarbon, is dispersed in the inert gas during the welding process. At a weld site (2), the use of the liquid (8) dispersed in the gas prevents any spatter formed from adhering to any surface adjacent the welding hand piece (3). The liquid may be dispersed in the gas by passing the gas through the liquid in a container (7) located between the gas supply (12, 13) and the welding hand piece (3), or may be injected into the gas as a vapor or free mist.
    Type: Grant
    Filed: July 13, 1995
    Date of Patent: February 18, 1997
    Assignee: Otavius Pty Ltd.
    Inventor: Alan Parry