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:
Feb. 23, 1993
Filed:
Jan. 15, 1992
Joachim Rudolph, Weilder Stadt, DE;
Werner & Pfleiderer GmbH, Stuttgart, DE;
Abstract
A rotor (2) surrounded by a strainer basket (3) is arranged vertically in a housing (1). Conveyor blades (7) arranged one above the other are distributed over the rotor (2) to convey plastic granules from a product inlet (14) arranged at the bottom of the housing to a discharge unit (15). A fan (19) is disposed in a discharge hood (16) and it has ejector blades (21) for assisting the radial discharge of the granules into unit (15). In order to change the residence time of the plastic granules in the dryer, a change in pressure is produced in the centrifugal dryer by replacing the fan with one having ejector blades whose outer diameter and/or length is different, the diameter of rotor (2) and its conveyor blades (7) being kept the same.