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, 1990
Filed:
Oct. 30, 1989
Applicant:
Inventors:
Kaihan Tavakoli, Meadville, PA (US);
Harold E Weckerly, Seneca, PA (US);
Assignee:
The Conair Group, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F26B / ;
U.S. Cl.
CPC ...
34 27 ; 34 44 ; 34 62 ; 34 72 ; 34 80 ;
Abstract
An apparatus and process for heating and dehumidifying plastic materials in a container, such as a hopper, using a current of warm dry air. The apparatus having a desiccant for removing the moisture picked up from the material, and having a heater and cooler downstream from the desiccant. The dryer control operates in three modes to control the cooler only, to control the heater and cooler, and to control the heater only. Measured temperatures and operating conditions control the selection of specific modes.