Patents by Inventor Charles K. Vollman

Charles K. Vollman 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: 4432826
    Abstract: A coextruded film having an integral tear path is provided such that the tear path has a thickness that is smaller than the overall thickness of the coextruded film, said product being formed by a method and on an apparatus that introduces an elongated void in at least one of the extrudates before being combined with other extrudates into the coextruded film, said elongated void accounting for the reduced thickness of the tear path.
    Type: Grant
    Filed: July 26, 1982
    Date of Patent: February 21, 1984
    Assignee: Health-Ex Corporation
    Inventors: Walter P. Scarberry, Charles K. Vollman
  • Patent number: 4353498
    Abstract: A coextruded film having an integral tear path is provided such that the tear path has a thickness that is smaller than the overall thickness of the coextruded film, said product being formed by a method and on an apparatus that introduces an elongated void in at least one of the extrudates before being combined with other extrudates into the coextruded film, said elongated void accounting for the reduced thickness of the tear path.
    Type: Grant
    Filed: January 5, 1981
    Date of Patent: October 12, 1982
    Assignee: Health-Ex Corporation
    Inventors: Walter P. Scarberry, Charles K. Vollman
  • Patent number: 4322048
    Abstract: Bag holding and supporting apparatus for holding and supporting a bag, especially of the flexible-walled plastic-film type, in an open and upright position for more convenient and efficient placement of articles or merchandise in the bag. The holding and supporting apparatus is situated adjacent a generally horizontal surface on which the bottom of the bag rests and the bag holder resiliently engages an upper sidewall portion of the bag near the top open end. An upright member has a base at the lower end for securing the apparatus relative to the horizontal surface. The upright member includes two portions in telescoping relationship to accommodate different height bags. A supporting head is attached to the upper end of the upright member and is of modified R-shape in cross section with opposing sides of the R-shape adapted to resiliently engage the sidewall of the bag for ease of insertion and removal of the bag from the head.
    Type: Grant
    Filed: August 18, 1980
    Date of Patent: March 30, 1982
    Assignee: Co-Poly-Ex Corporation
    Inventor: Charles K. Vollman