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:
Aug. 09, 1983
Filed:
Nov. 12, 1981
Applicant:
Inventors:
Perry A Argabright, Larkspur, CO (US);
John S Rhudy, Littleton, CO (US);
Assignee:
Marathon Oil Company, Findlay, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ; F17D / ;
U.S. Cl.
CPC ...
210733 ; 210734 ; 137 13 ; 252 / ;
Abstract
A method of reducing the fluid flow friction loss of fluid waste materials in the conduits of sanitary sewer systems while at the same time maintaining the solid materials in the fluid in a flowable condition by introducing into a sewer system about 1 to about 10,000 ppm of an aqueous solution of a partially hydrolyzed polyacrylamide polymer having a preselected average molecular weight and molecular weight distribution.