Patents by Inventor Bruce Sanderford

Bruce Sanderford 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).

  • Resealable packaging material
    Patent number: 5382472
    Abstract: The invention is a flexible packaging material having a narrow band of pressure sensitive adhesive beneath a heatsealable surface layer. When the material is formed into a package, a heatseal is formed along the band of pressure sensitive adhesive. When the heatseal is opened, the pressure sensitive adhesive becomes exposed at the surface of the seal, which enables the package to be resealed by manual pressure alone. A particular advantage of the invention is that the pressure sensitive adhesive is present only in the narrow band, where it is needed to form the resealable seal. The packaging material is made by side-by-side coextrusion.
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: January 17, 1995
    Assignee: James River Paper Company, Inc.
    Inventors: Apostol Yanidis, Bruce Sanderford
  • Apparatus and method for reducing plastic film neck-in
    Patent number: 5147595
    Abstract: Apparatus for stabilizing and reducing neck-in and edge thickness of a hot-plastic web including a pair of nozzle assemblies located at spaced edges of the web. Each nozzle assembly includes a pair of elongated nozzle elements which direct a pair of gaseous flows along opposed sides of the web transverse to the direction of movement of the web and toward an edge thereof.
    Type: Grant
    Filed: July 23, 1991
    Date of Patent: September 15, 1992
    Assignee: James River II, Inc.
    Inventor: Bruce Sanderford