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. 01, 2003
Filed:
Jan. 17, 2002
Robert W. Brown, Baltimore, MD (US);
John W. Doub, Jr., Queenstown, MD (US);
Novatec, Inc., Baltimore, MD (US);
Abstract
A system for drying particulate material in a drying hopper (DH) has a plurality of gas flow paths, one (FP ) of which extends from a compressed gas inlet ( ) to a first sub-system (SS ) that includes a membrane dryer(MD) and a heater (EH′), whereby dried and heated gas is supplied to a lower portion ( ) of the hopper, and another (FP ) of which extends from the inlet ( ) to a second sub-system (SS2) that includes a mixing device ( ) and a heater (EH). The mixing device uses compressed gas to induce a flow of gas from the hopper and mixes the compressed gas with gas withdrawn from the hopper. The mixed gases are heated and supplied to a second portion ( ) of the hopper.