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. 31, 1995
Filed:
Nov. 01, 1993
Applicant:
Inventors:
Mayela Rivero, Caracas, VE;
Valmore Rodriquez, Caracas, VE;
Dan Joseph, Minneapolis, MN (US);
Emilio Guevara, Caracas, VE;
Nelson Carabano, Caracas, VE;
Assignee:
Intevep, S.A., Caracas, VE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ; F17D / ;
U.S. Cl.
CPC ...
138145 ; 138103 ; 138110 ; 138143 ; 138175 ; 137 13 ;
Abstract
A conduit for transporting an oil and water mixture wherein the conduit has an inner surface is substantially hydrophilic and oleophobic. The surface is characterized by a water absorption capacity of greater than or equal to about 8% by weight, and by a contact angle with the oil of greater than or equal to about 120.degree.. The inner surface material may be a silica containing concrete composition or a polymeric coating composition. A conduit having such an inner surface is wetted by water so as to inhibit adhesion of oil to the conduit.