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:
Apr. 06, 1976
Filed:
Dec. 27, 1971
Homer L Draper, Bartlesville, OK (US);
Lew T Gray, Bartlesville, OK (US);
Phillips Petroleum Company, Bartlesville, OK (US);
Abstract
A reservoir containing layered liquids is lined with a liner comprising a reaction resistant material lining the portion of the reservoir in contact with a reactive liquid with the remainder of the reservoir lined with a material that is not resistant to reaction with the reactive liquid. In a specific embodiment asphalt impregnated nonwoven fabric is used to line a reservoir portion in contact with water and butyl rubber impregnated nonwoven fabric is used to line the portion of the reservoir in contact with a hydrocarbon liquid floating on top of the water layer. In a specific embodiment sheets of liner material are fastened together in a liquid proof seal produced by facing liner sheets to be joined together, overlapping the face sheets with a layer of nonwoven fabric, sewing through the four strata laminate thus produced, and treating the nonwoven fabric with a liquid proofing substance.