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. 07, 1984
Filed:
Dec. 02, 1981
Applicant:
Inventors:
Klaus Koch, Laatzen, DE;
Gerhard Syrbius, Grossburgwedel, DE;
Assignee:
Hermann Berstorff Maschinenbau GmbH, Hanover, DE;
Primary Examiner:
Int. Cl.
CPC ...
B30B / ;
U.S. Cl.
CPC ...
100117 ; 100150 ;
Abstract
An extraction device for extracting liquids from liquid-solid mixtures comprising a screw rotatable in a barrel the screw having at least one flight helically disposed thereon to define the screw thread, the flight having gaps formed therein, the gaps being dimensioned so as to correspond to the diameter of pins extending radially through the barrel towards the screw axis, the pins having axial bores formed therein for the discharge of liquid the bores being open in the direction of the axis of the screw. The bores are connected to a liquid discharge network.