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:
Sep. 26, 1978
Filed:
Dec. 02, 1976
Thaddeus Eugene Kizior, Edmonton, CA;
Her Majesty the Queen in right of Canada, as represented by the Minister, , US;
Her Majesty the Queen in right of the Province of Alberta, Government of, , US;
Ontario Energy Corporation, Toronto, CA;
Imperial Oil Limited, Toronto, CA;
Canada-Cities Service, Ltd., Calgary, CA;
Gulf Oil Canada Limited, Toronto, CA;
Abstract
Bitumen froth streamsfrom the primary separation vessel and secondary flotation cells are gravity transferred into one or more columns and heated and deaerated therein by passing them countercurrent to steam. The heated deaerated froth is then pumped with centrifugal pump means to the froth treatment circuit. By deaerating and heating before pumping, the froth is converted from a form difficult to pump to one which is relatively easy to pump.