Patents by Inventor Michael Dudley Martin

Michael Dudley Martin 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).

  • Inflatable liferafts of thermoplastic material and methods for their manufacture
    Patent number: 4083070
    Abstract: A method of making an inflatable liferaft from thermoplastic sheet material, wherein the thermoplastic sheet material which is to form a floor of the liferaft is heat welded around the periphery of the floor to the thermoplastic sheet material which is to form a peripheral inflatable buoyancy tube of the liferaft, after which edges of the material which is to form the tube are joined by heat welding to close the tube along its longitudinal extent.
    Type: Grant
    Filed: July 2, 1976
    Date of Patent: April 11, 1978
    Assignee: RFD Inflatables Limited
    Inventor: Michael Dudley Martin