Patents by Inventor Donals J. Roth

Donals J. Roth 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: 4503990
    Abstract: This relates to a can, preferrably formed of aluminum, which may be formed by a drawing process and which is so constructed wherein it may utilize wall thicknesses less than those which are presently commercially permissible so as to be suitable for the packaging of food products and the like which are either hot filled or subject to retorting and still commercially compete with three-piece steel cans. A primary feature of the can is the elimination of the customary double seam securing the end unit to the can body and replacing the same with telescoping of portions of the can body and end unit and providing an adhesive bond therebetween with the adhesive bond being enhanced by the reaction of the can body and end unit under conditions of internal pressure and internal vacuum due to the radial compression of the adhesive forming the adhesive bond to increase the shear strength of the adhesive.
    Type: Grant
    Filed: March 7, 1984
    Date of Patent: March 12, 1985
    Assignee: Continental Packaging Company, Inc.
    Inventors: Donals J. Roth, Charles S. Kubis, John Walter