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:
Aug. 09, 1977
Filed:
Jun. 11, 1975
Applicant:
Inventors:
Herbert Hergeth, Dulmen, DT;
Walter Wirth, Dulmen, DT;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B07B / ;
U.S. Cl.
CPC ...
209 22 ; 19200 ; 209250 ; 209293 ;
Abstract
This disclosure relates to apparatus for cleaning natural fibers of their contaminants by passing the same through a pair of rotary drum sieves each having a porous peripheral surface subject to a vacuum whereby natural fibers adhere to the porous peripheral surfaces and contaminants are drawn therethrough, the drum sieves being disposed with portions of their peripheral surfaces defining a throat through which the fibers pass, and means contiguous the throat for cutting off the vacuum effect of the first drum sieve whereby the fibers are transferred from the first drum peripheral surface to that of the second drum.