Patents by Inventor Edward C. Dell

Edward C. Dell 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 continuous forming shaped polymeric articles
    Patent number: 7108495
    Abstract: This invention relates to methods and apparatus for manufacturing shaped polymeric articles by substantially continuous vacuum forming. The method includes providing a sheet of hot polymeric material which is disposed onto a rotating belt having a mold impression. Vacuum pressure is applied to the polymeric material through the belt so as to draw the hot polymeric material into intimate contact with the mold impression to form a patterned sheet portion and a remaining sheet portion. This method thereafter cools at least the patterned sheet portion below a heat deflection temperature of the polymeric material, forms the remaining sheet portion, and then cools the remaining sheet portion below the heat deflection temperature so that features other than the central pattern, such as nail and butt edges, can be mechanically worked into the polymeric sheet.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: September 19, 2006
    Assignee: CertainTeed Corporation
    Inventors: Thomas Gilbert, Kenneth D. Bosler, Edward C. Dell
  • Apparatus for continuous forming shaped polymeric articles
    Patent number: 6752610
    Abstract: This invention relates to methods and apparatus for manufacturing shaped polymeric articles by substantially continuous vacuum forming. The method includes providing a sheet of hot polymeric material which is disposed onto a rotating belt having a mold impression. Vacuum pressure is applied to the polymeric material through the belt so as to draw the hot polymeric material into intimate contact with the mold impression to form a patterned sheet portion and a remaining sheet portion. This method thereafter cools at least the patterned sheet portion below a heat deflection temperature of the polymeric material, forms the remaining sheet portion, and then cools the remaining sheet portion below the heat deflection temperature so that features other than the central pattern, such as nail and butt edges, can be mechanically worked into the polymeric sheet.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: June 22, 2004
    Assignee: Certainteed Corporation
    Inventors: Thomas Gilbert, Kenneth D. Bosler, Edward C. Dell
  • Apparatus for continuous forming shaped polymeric articles
    Publication number: 20020033563
    Abstract: This invention relates to methods and apparatus for manufacturing shaped polymeric articles by substantially continuous vacuum forming. The method includes providing a sheet of hot polymeric material which is disposed onto a rotating belt having a mold impression. Vacuum pressure is applied to the polymeric material through the belt so as to draw the hot polymeric material into intimate contact with the mold impression to form a patterned sheet portion and a remaining sheet portion. This method thereafter cools at least the patterned sheet portion below a heat deflection temperature of the polymeric material, forms the remaining sheet portion, and then cools the remaining sheet portion below the heat deflection temperature so that features other than the central pattern, such as nail and butt edges, can be mechanically worked into the polymeric sheet.
    Type: Application
    Filed: September 28, 2001
    Publication date: March 21, 2002
    Applicant: CertainTeed Corporation.
    Inventors: Thomas Gilbert, Kenneth D. Bosler, Edward C. Dell
  • Method for continuous vacuum forming shaped polymeric articles
    Patent number: 6319456
    Abstract: This invention relates to methods and apparatus for manufacturing shaped polymeric articles by substantially continuous vacuum forming. The method includes providing a sheet of hot polymeric material which is disposed onto a rotating belt having a mold impression. Vacuum pressure is applied to the polymeric material through the belt so as to draw the hot polymeric material into intimate contact with the mold impression to form a patterned sheet portion and a remaining sheet portion. This method thereafter cools at least the patterned sheet portion below a heat deflection temperature of the polymeric material, forms the remaining sheet portion, and then cools the remaining sheet portion below the heat deflection temperature so that features other than the central pattern, such as nail and butt edges, can be mechanically worked into the polymeric sheet.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: November 20, 2001
    Assignee: Certainteed Corporation
    Inventors: Thomas Gilbert, Kenneth D. Bosler, Edward C. Dell