Patents by Inventor Robert F. Lassiter

Robert F. Lassiter 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: 6652909
    Abstract: A composite roofing material includes a final condition underlayment material having bonded thereto appropriate rows of nail tabs preferably made of thermoplastic-based material, such as low density polyethylene material, and of a contrasting color to the underlayment material. A process is used to make the nail tabs by conveying the saturated underlayment material in a continuous process past appropriate sets of nozzles that are coordinated with the speed of conveyance to deposit the tabs while in a liquid state and to form tabs of appropriate size and appropriately patterned across the underlayment surface. Each nozzle can include multiple orifices to control the width and thickness of the formed tabs. A similar process is disclosed for making other building cover materials having rows of nail tabs coinciding with standard stud spacing.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: November 25, 2003
    Inventor: Robert F. Lassiter
  • Publication number: 20030044526
    Abstract: A composite roofing material includes a final condition underlayment material having bonded thereto appropriate rows of nail tabs preferably made of thermoplastic-based material, such as low density polyethylene material, and of a contrasting color to the underlayment material. A process is used to make the nail tabs by conveying the saturated underlayment material in a continuous process past appropriate sets of nozzles that are coordinated with the speed of conveyance to deposit the tabs while in a liquid state and to form tabs of appropriate size and appropriately patterned across the underlayment surface. Each nozzle can include multiple orifices to control the width and thickness of the formed tabs. A similar process is disclosed for making other building cover materials having rows of nail tabs coinciding with standard stud spacing.
    Type: Application
    Filed: September 4, 2002
    Publication date: March 6, 2003
    Inventor: Robert F. Lassiter
  • Patent number: 6451409
    Abstract: A composite roofing material includes a final condition underlayment material having bonded thereto appropriate rows of nail tabs preferably made of thermoplastic-based material, such as low density polyethylene material, and of a contrasting color to the underlayment material. A process is used to make the nail tabs by conveying the saturated underlayment material in a continuous process past appropriate sets of nozzles that are coordinated with the speed of conveyance to deposit the tabs while in a liquid state and to form tabs of appropriate size and appropriately patterned across the underlayment surface. Each nozzle can include multiple orifices to control the width and thickness of the formed tabs. A similar process is disclosed for making other building cover materials having rows of nail tabs coinciding with standard stud spacing.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: September 17, 2002
    Inventor: Robert F. Lassiter
  • Patent number: 5365709
    Abstract: The invention is to a roofing material and the method of making the roofing material. The roofing material is in the form of a standard material know as "felt" or "tar-paper" that has a plurality of nail tabs attached to the felt base material prior to coating the felt base with a water resistant material such as petroleum "tar". In a second embodiment, the nail tabs are attached to the felt during installation of the felt on a roof. The roofing material is attached to a roof with roofing nails that are driven through the tabs.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: November 22, 1994
    Inventor: Robert F. Lassiter
  • Patent number: RE35603
    Abstract: The invention is to a roofing material and the method of making the roofing material. The roofing material is in the form of a standard material know as "felt" or "tarpaper" that has a plurality of nail tabs attached to the felt base material prior to coating the felt base with a water resistant material such as petroleum "tar". In a second embodiment, the nail tabs are attached to the felt during installation of the felt on a roof. The roofing material is attached to a roof with roofing nails that are driven through the tabs.
    Type: Grant
    Filed: October 18, 1995
    Date of Patent: September 16, 1997
    Inventor: Robert F. Lassiter