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. 20, 1976
Filed:
Aug. 02, 1974
Norman E Williams, St. Paul, MN (US);
David L Phillips, Fridley, MN (US);
Richard A Ley, Minneapolis, MN (US);
Bruce Beaubien, St. Paul, MN (US);
Richard L Brown, Eagan, MN (US);
The Strong-Scott Mfg. Co., Minneapolis, MN (US);
Abstract
Heat exchanging apparatus for handling solids, slurries, gels, filter cakes, powders, and the like, for continuous indirect heating, drying, cooling or reaction of materials passed through the apparatus. The dryer/heater/cooler apparatus is characterized by a stationary horizontal vessel with a rotary heat exchanger including a tubular shaft on which are mounted a plurality of hollow vertical discs through which a heat exchanging fluid is passed. Material to be treated is admitted to one end of the apparatus housing, transported in an axial direction through the annular space between the rotor discs and the vessel toward the discharge end and discharged through an overflow weir after the desired residence time. Several rotor disc designs are shown and described.