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. 27, 1976
Filed:
Oct. 17, 1974
Applicant:
Inventors:
Robert A Baillie, West Chester, PA (US);
James Van Fear, West Chester, PA (US);
Assignee:
Great Canadian Oil Sands Limited, Toronto, CA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208 / ;
Abstract
A method for reducing the sludge layer in an effluent retention pond associated with hot water extraction of bitumen from tar sands comprising recycling sludge from the retention pond to aid in removing the aqueous effluent discharge from the extraction process and thereby effect a reduction of the volume of the sludge layer in the pond.