Patents Assigned to Excellene Limited
  • Patent number: 5236467
    Abstract: Base hydrocarbon, preferably LPG gas, is fortified with methyl ethyl ketone and methyl tertbutyl ether in an amount 0.5% to 13%, preferably 5% to 8%, of the base hydrocarbon by weight for use as torch gas, heating or motor fuel. Cutting of ferrous metal can be accomplished even under water by mixing the fortified torch gas with oxygen having a purity as low as 90%.
    Type: Grant
    Filed: June 12, 1992
    Date of Patent: August 17, 1993
    Assignee: Excellene Limited
    Inventor: James E. Fritz