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:
Nov. 21, 2023
Filed:
Nov. 13, 2020
Applicant:
Harburg-freudenberger Maschinenbau Gmbh, Hamburg, DE;
Inventor:
Martin Fuhrmann, Heidgraben, DE;
Assignee:
HARBURG-FREUDENBERGER MASCHINENBAU GMBH, Hamburg, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B30B 9/16 (2006.01); B30B 9/12 (2006.01);
U.S. Cl.
CPC ...
B30B 9/16 (2013.01); B30B 9/121 (2013.01); B30B 9/122 (2013.01);
Abstract
A pressing apparatus having a strainer cage and at least two feeding screws, which are arranged one behind the other in the feeding direction on a common screw shaft, wherein a pressure zone with no screw helix is arranged between the feeding screws. In the region of the pressure zone, the pressing apparatus according to the invention has a plurality of scraper shells, and these provide for improved efficiency of the pressing operation.