Patents by Inventor John R. Delamater

John R. Delamater 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).

  • Apparatus for forming plastic sheet
    Patent number: 4389179
    Abstract: This invention relates to a machine for and a method of making building products from a coiled sheet of thermoplastic polymer such as polyvinyl chloride. In the practice of this invention, portions of the polymeric sheet are selectively and sequentially heated and progressively bent to the desired shape by passing the sheet through a series of heating, forming and cooling stations.The simplified design of the machine enables the user to custom fabricate building products at a construction site with a resulting savings in cost. Typical products adapted to be made in accordance with the invention are exterior building siding, siding accessories and other building products.
    Type: Grant
    Filed: November 30, 1981
    Date of Patent: June 21, 1983
    Assignee: American Hoechst Corporation
    Inventors: Robert F. Westcott, John R. Delamater
  • Method for forming plastic sheet
    Patent number: 4329307
    Abstract: This invention relates to a machine for and a method of making building products from a coiled sheet of thermoplastic polymer such as polyvinyl chloride. In the practice of this invention, portions of the polymeric sheet are selectively and sequentially heated and progressively bent to the desired shape by passing the sheet through a series of heating, forming and cooling stations.The simplified design of the machine enables the user to custom fabricate building products at a construction site with a resulting savings in cost. Typical products adapted to be made in accordance with the invention are exterior building siding, siding accessories and other building products.
    Type: Grant
    Filed: March 31, 1980
    Date of Patent: May 11, 1982
    Assignee: American Hoechst Corporation
    Inventors: Robert F. Westcott, John R. Delamater