Patents by Inventor Christopher J. N. Tod

Christopher J. N. Tod 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: 5049019
    Abstract: A method of making a container by laminating a metal substrate layer and a polymeric material layer together by bonding over the whole of at least one side of the metal substrate layer thereby forming a laminate container component, providing another container component, forming one of the container components into a tubular container body component having an opening set off by a peripheral edge portion, forming the other of the container components into a container closure component having a peripheral edge portion, assembling the container body component and the container closure component with the polymeric material layer in sandwiched relationship between the peripheral edge portions and in the complete absence of adding any additional sealing material between the peripheral edge portions other than the polymeric material layer of the first step and mechanically deforming the peripheral edge portions into a mechanical joint with sufficient force to compress the polymeric material layer and form an an air/
    Type: Grant
    Filed: September 15, 1988
    Date of Patent: September 17, 1991
    Assignee: CMB Foodcan plc
    Inventors: Josef T. Franek, Paul Porucznik, Peter H. Serby, Christopher J. N. Tod
  • Patent number: 4626157
    Abstract: In a metal can at least one component having an edge portion forming part of a seam is made from pre-laminated plate comprising a metal substrate with a polymeric film bonded over the whole of one or both of its sides. An aerosol valve cup is made from such plate with its underside having such a polymeric layer, and is secured to the can body in a seam by conventional mechanical deformation, such as swaging, so as to compress the polymeric layer in the seam. This provides a satisfactory seal without the need for any additional sealing material within the seam.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: December 2, 1986
    Assignee: Metal Box Public Limited Company
    Inventors: Josef T. Franek, Paul Porucznik, Peter H. Serby, Christopher J. N. Tod
  • Patent number: 4423823
    Abstract: In a metal container having at least one seam by which two overlapping metal edges are joined together, at least one of the edges (58) has a resilient polymeric layer (56) bonded firmly to the metal, so that when that edge (58) is seamed to a second edge (60) the polymeric layer deforms without destroying the bond, and becomes bonded to the second edge, so creating a seal against leakage. A layer of latex no greater than 0.10 mm thick may optionally be included. Seams to which the invention is applicable include swaged seams, interlocked double seams or longitudinal side seams. In the latter case the polymeric layer may provide the bond to secure a single lap seam.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: January 3, 1984
    Assignee: Metal Box Limited
    Inventors: Josef T. Franek, Paul Porucznik, Peter H. Serby, Christopher J. N. Tod