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. 04, 1992
Filed:
May. 21, 1990
Ian Ripley, Cleveland, GB;
Great Eastern (Bermuda) Ltd., New York, NY (US);
Abstract
The recovery of materials from viscous bodies of petroleum residue and asphalt deposits which contain substantial quantities of the deposits by the use of an induced thermal gradient in a region of such a viscous body in which there is located a screw-like pump. This is effected by a process and apparatus that utilizes a thermal gradient about a archimedian screw-type pump in the pit or pond where its inlet is proximate of the surface of the pit or pond. The thermal gradient about the pump concentrates less viscous components at the vicinity of the inlet and a positive pressure is applied to assure a flow of residue towards the inlet allowing the lower viscosity materials to be captured and pumped from the pit or pond to a shore facility.