Patents by Inventor Sherman Krefting

Sherman Krefting 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).

  • Synthetic sizes
    Patent number: 4033922
    Abstract: Synthetic sizes for use on yarns in water jet looms are prepared by copolymerizing methacrylic acid with from about 3% by weight to about 15% by weight of acrylic acid or vinylethoxytetraethylene glycol as the comonomer. These sizes are useful as nylon warp sizes in water jet looms. They have the desired adhesion to nylon and water resistance plus non-adhesion to steel parts on the loom.
    Type: Grant
    Filed: March 30, 1976
    Date of Patent: July 5, 1977
    Assignee: Diamond Shamrock Corporation
    Inventors: Joseph J. Baron, Jr., Sherman Krefting
  • Yarn sizing process and product
    Patent number: 3974321
    Abstract: Synthetic sizes for use on yarns in water jet looms are prepared by copolymerizing methacrylic acid with from about 3% by weight to about 15% by weight of acrylic acid or vinylethoxytetraethylene glycol as the comonomer. These sizes are useful as nylon warp sizes in water jet looms. They have the desired adhesion to nylon and water resistance plus nonadhesion to steel parts on the loom.
    Type: Grant
    Filed: June 20, 1974
    Date of Patent: August 10, 1976
    Assignee: Diamond Shamrock Corporation
    Inventors: Joseph J. Baron, Jr., Sherman Krefting