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:
Jun. 30, 1981
Filed:
Aug. 08, 1979
Applicant:
Inventors:
George B Karnofsky, Pittsburgh, PA (US);
Robert E Brink, Sewickley, PA (US);
Assignee:
Dravo Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27D / ;
U.S. Cl.
CPC ...
432 85 ; 165D / ; 165D / ; 208 / ; 122 28 ;
Abstract
A continuous process for heating a fluid by recovering heat from a heated, pumpable aqueous slurry of granular material wherein the slurry is passed through an indirect heat exchanger to heat the fluid and then passed to a second indirect heat exchanger to preheat water for forming of further heated, pumpable slurry, with the slurry next passed to a third indirect heat exchanger to heat makeup water to the system and then to a thickener wherein the granular material is separated and the water recovered from the thickener is returned to the system.