Patents by Inventor Mark Seth Laws

Mark Seth Laws 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: 6078031
    Abstract: A method for joining well and other oilfield tubulars by amorphous bonding comprises the steps of positioning a body of amorphous material (16) between adjacent and surfaces of a pair of oilfield tubulars (3, 4) that are to be joined and using induction heating to melt the amorphous material and create on cooling a metallurgical bond between the tubulars (3, 4). Throughout the heating and bonding process the tubulars (3, 4) are fixed in axial alignment with each other using clamp means which include a mandrel (1) which is inserted into the interior of the tubulars (3, 4) so that the bonding process can be performed in a sealed chamber (17, 18) which is filled with an inert gas.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: June 20, 2000
    Assignee: Shell Research Limited
    Inventors: Alan Edgar John Bliault, Francis Alexander Cumming, Mark Seth Laws