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:
Mar. 05, 1991
Filed:
Mar. 23, 1989
Applicant:
Inventor:
Shoji Nakagomi, Kawaguchi, JP;
Assignee:
Nissui Kako Co., Ltd., Kawaguchi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01K / ; H05B / ;
U.S. Cl.
CPC ...
34-1 ; 219 / ;
Abstract
A method of and apparatus for effectively drying pelletized or powdered plastic material by irradiation of the plastic material by microwaves while agitating it in a rotating drum that provides for sealing against leakage of plastic material or microwaves and provides means for exhausting moisture laden air therefrom. The combination of radiation by microwaves, even agitation by the rotating drum, and exhaustion of moisture driven from the plastic material provides a method of effectively drying plastic material uniformly, efficiently, and to a state of sufficient dryness for proper molding.