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:
Dec. 04, 1979
Filed:
Jul. 18, 1977
Applicant:
Inventors:
Robert G Murray, Palo Alto, CA (US);
Benjamin J Gikis, Los Altos Hills, CA (US);
Assignee:
Natomas Company, San Francisco, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F26B / ;
U.S. Cl.
CPC ...
34 31 ; 34 36 ; 34182 ; 34242 ; 208 / ;
Abstract
A heat saving method for drying wet particulate solids as the latter move upwardly in a loaded screw flight conveyer wherein, by establishing a non-condensable gas barrier at the upper end of the flight, the vapors formed by heating the upwardly moving mass are induced to flow downwardly for condensation by the cooler incoming particulate matter, thereby effecting an internal transfer of the heat of vaporization of the wetting liquid and a consequent reduction in the heat required to dry the particulate matter and recover the separated vapor in liquid form.