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:
May. 16, 2017
Filed:
Nov. 09, 2012
Applicant:
Hugo Vogelsang Maschinenbau Gmbh, Essen, DE;
Inventor:
Hugo Vogelsang, Essen, DE;
Assignee:
Hugo Vogelsang Maschinenbau GmbH, Essen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65G 33/14 (2006.01); C12M 1/26 (2006.01); B65G 33/22 (2006.01); C12M 1/107 (2006.01);
U.S. Cl.
CPC ...
C12M 33/16 (2013.01); B65G 33/14 (2013.01); B65G 33/22 (2013.01); C12M 21/04 (2013.01); B65G 2812/0538 (2013.01); Y02E 50/343 (2013.01);
Abstract
A screw conveyor for introducing organic matter into a biogas digester that is under internal gas pressure. A biogas plant may be provided with such a screw conveyor, and methods for feeding organic solids to such a biogas plant may be performed. A plug section of the screw conveyor has an expansion region in which the passage cross-section between the conveying screw and the screw pipe widens in the conveying direction and a constriction region located downstream from the expansion region, in which the passage cross-section between the conveying screw and the screw pipe is reduced in the conveying direction.