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:
Jul. 27, 1999
Filed:
May. 01, 1998
Applicant:
Inventors:
Bruce J Dover, Lockport, NY (US);
Edward V McCormick, Churchville, NY (US);
Assignee:
Harper International Corp., Lancaster, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F27B / ;
U.S. Cl.
CPC ...
432103 ;
Abstract
This invention relates to a batch type rotary calcination system where the gas used to heat and chemically react a particulate material is cross-flow contacted with the particulate material. This cross-flow is achieved by locating a gas inlet and a gas outlet adjacent an apertured cylinder containing the particulate material. The apertures on the cylinder are covered by a screen designed to permit gas flow through but prevent the escape of particulate material from the system. The gas inlet and gas outlet are so positioned to provide a continuous gas cross-flow through the particulate material being treated.