Patents by Inventor Van Pelt Brower

Van Pelt Brower 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).

  • Production of polyvinylbutyral sheet rolls
    Patent number: 4226818
    Abstract: A process comprising winding polyvinylbutyral interlayer sheet at a controlled low tension reduces blocking at the core of the roll and minimizes stretch variations within the roll and storing the roll until use at a temperature below 15.degree. C.
    Type: Grant
    Filed: June 8, 1979
    Date of Patent: October 7, 1980
    Assignee: Monsanto Company
    Inventors: Van Pelt Brower, Robert A. Esposito, Thomas E. Soar
  • Roll finishing process
    Patent number: 4026007
    Abstract: Disclosed herein is an improved process for finishing a die roll which is used to prepare interlayers for laminated safety glass. The improvement comprises the blasting of the roll with glass beads after the conventional grit blasting steps and before chrome plating. Interlayers prepared using rolls made by this process are characterized by having surfaces which are more printable without sacrificing the surface roughness required to prevent blocking of the sheet and to facilitate de-airing of laminates prepared from the interlayer.
    Type: Grant
    Filed: May 19, 1975
    Date of Patent: May 31, 1977
    Assignee: Monsanto Company
    Inventor: Van Pelt Brower