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. 13, 1977
Filed:
Jun. 30, 1975
Applicant:
Inventors:
Roland Pfeiffer, Bensberg-Frankenforst, DT;
Wilhelm Bongert, Bochum, DT;
Heinz-Dieter Waldhecker, Bensberg-Refrath, DT;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F26B / ;
U.S. Cl.
CPC ...
34-1 ; 333 / ;
Abstract
A method and apparatus for drying wet granular and/or lumpy materials, employs a chamber having a material inlet, a material discharge outlet, an inlet for a heated drying fluid and a vapor outlet. A perforate sieve-type material support extends along a path between the material inlet and the material discharge outlet to provide communication between the drying fluid and vapor outlet through the material and a microwave generating and transmitting device is located above the material path to irradiate the material with microwave energy as a part of the drying energy supplied to the material.