Patents by Inventor Susan K. Marquardt

Susan K. Marquardt 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).

  • Inelastic, heat-elasticizable sheet material for diapers
    Patent number: 4640859
    Abstract: Flat, inelastic, dimensionally stable sheet material is formed by stretching parallel elastomeric strands to several times their relaxed length and then bonding them to one or more flat, inelastic webs with inelastic thermoplastic polymer. When the sheet material is heated, the strands contract and the sheet material shirrs. Strips of the flat sheet material can be incorporated in disposable diapers and subsequently shirred to provide elastic waistbands or leg openings.
    Type: Grant
    Filed: September 23, 1985
    Date of Patent: February 3, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Paul E. Hansen, Susan K. Marquardt
  • Inelastic, heat-elasticizable sheet material
    Patent number: 4552795
    Abstract: Flat, inelastic, dimensionally stable sheet material is formed by stretching parallel elastomeric strands to several times their relaxed length and then bonding them to one or more flat, inelastic webs with inelastic thermoplastic polymer. When the sheet material is heated, the strands contract and the sheet material shirrs. Strips of the flat sheet material can be incorporated in disposable diapers and subsequently shirred to provide elastic waistbands or leg openings.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: November 12, 1985
    Assignee: Minnesota Mining and Manufacturing Co.
    Inventors: Paul E. Hansen, Susan K. Marquardt