Patents by Inventor W. Obal

W. Obal 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).

  • Publication number: 20060137757
    Abstract: The present invention relates to a pipe, especially an oil pipe, having a lining comprising a fluoropolymer adhered to its interior surface and a lining formed on its exterior surface. The interior and/or exterior lining may comprise a primer layer comprising a fluoropolymer, and preferably a perfluoropolymer and an overcoat or a preformed film adhered to the primer layer. Either the overcoat or the preformed liner also comprises a fluoropolymer, and preferably a perfluoropolymer. The surface of the lining facing the flowable media, such as oil, may be a pure perfluoropolymer to provide a particularly good non-stick surface for the oil.
    Type: Application
    Filed: November 23, 2005
    Publication date: June 29, 2006
    Inventors: Laurence McKeen, Pidatala Mohan, Steven Mestemacher, Kimberly Farnsworth, W. Obal
  • Publication number: 20060127622
    Abstract: The present invention relates to pipes that convey any flowable medium, such as chemicals, food and in particular, oil and gas, and more particularly to a system of pipes having different coatings or linings for the interior and exterior surfaces of such pipes, depending on the environment in which the pipes are used. The pipes may be coated with different materials, which may be of different thicknesses, with various configurations of coatings or linings. Such coating may be done on the interior and/or the exterior of the pipes.
    Type: Application
    Filed: November 23, 2005
    Publication date: June 15, 2006
    Inventors: Pidatala Mohan, Steven Mestemacher, Kimberly Farnsworth, Laurence McKeen, W. Obal
  • Publication number: 20050229992
    Abstract: The present invention relates to a vessel, in particular a pipe, especially an oil pipe, having a preformed film adhered onto the interior surface of the pipe, the interior surface of the preformed film reducing the deposition of at least one of asphaltenes, paraffin wax, and inorganic scale by at least 40% as compared to the interior surface of said oil pipe without said preformed film being present. In a preferred embodiment, the preformed film is adhered to the interior surface of the pipe with a primer layer with an optional barrier layer between the primer layer and the preformed film.
    Type: Application
    Filed: April 5, 2005
    Publication date: October 20, 2005
    Inventors: Laurence McKeen, Kimberly Farnsworth, W. Obal, Pidatala Mohan