The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 18, 2011
Filed:
May. 26, 2009
Laurence Waino Mckeen, Sewell, NJ (US);
Pidatala K. Mohan, West Windsor, NJ (US);
Steven A. Mestemacher, Parkersburg, WV (US);
Kimberly Dawn Farnsworth, Walker, WV (US);
W. Douglas Obal, Bethlehem, PA (US);
Laurence Waino McKeen, Sewell, NJ (US);
Pidatala K. Mohan, West Windsor, NJ (US);
Steven A. Mestemacher, Parkersburg, WV (US);
Kimberly Dawn Farnsworth, Walker, WV (US);
W. Douglas Obal, Bethlehem, PA (US);
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
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.