Patents by Inventor Manson D. Case

Manson D. Case 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: 4849090
    Abstract: A roll of flexible plastic film bags formed of a continuous strip of bags with transverse severance lines between the individual bags. The bags dispense in a forward direction from the roll with each following bag adhesively tacked to the roll with a resistance to release slightly greater than the resistance to release of the severance line for a stabilization of the roll as the leading bags are severed therefrom. The tack securing of each following bag is provided by the application of an adhesive to the inner face panel of each bag adjacent the mouth end thereof as the roll is being formed.
    Type: Grant
    Filed: May 11, 1988
    Date of Patent: July 18, 1989
    Assignee: Sonoco Products Company
    Inventors: Manson D. Case, Harry B. Wilfong, Jr., William C. Hoffmeyer
  • Patent number: 4371130
    Abstract: In a yarn tube having a yarn-supporting surface, a yarn-receiving pickup groove formed in the surface and extending circumferentially at least partially around the tube. The groove, specifically configured to accommodate both right hand and left hand yarn pickup, has a constant varying width along the length thereof, and either two widest sections or a common widest section capable of allowing "dropping in" and orientation of the yarn from both the right and left. Constantly narrowing sections extend outward from the widest section or sections to a common narrowest section or point to insure proper snagging of the yarn, initially received within the wide section or sections, regardless of the direction of rotation of the tube or the thickness of the yarn. The entire groove is of constant depth with the constant varying width insuring an accommodation and proper gripping of the yarn over a wide denier range.
    Type: Grant
    Filed: January 13, 1981
    Date of Patent: February 1, 1983
    Assignee: Sonoco Products Company
    Inventor: Manson D. Case
  • Patent number: 4304365
    Abstract: A system and method of providing electrostatic pick-up of yarn on a rotating carrier tube or the like involving provision and use of an electrostatic generator for the application of a static charge to the leading section of the yarn which is subsequently directed across a spindle mounted rotating carrier in a manner whereby the yarn is adhered to or picked up on the tube by electrostatic attraction, the continuous high speed rotation of the carrier effecting a quick positive achievement of multiple wraps of yarn about the carrier.
    Type: Grant
    Filed: February 6, 1981
    Date of Patent: December 8, 1981
    Assignee: Sonoco Products Company
    Inventors: McCleery B. Cunningham, Manson D. Case