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:
Jan. 29, 2013
Filed:
Jan. 26, 2010
Applicant:
Thorsten Stirner, Königsbach-Stein, DE;
Inventor:
Thorsten Stirner, Königsbach-Stein, DE;
Assignee:
Coperion GmbH, Stuttgart, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B29B 7/84 (2006.01); B29C 47/76 (2006.01);
U.S. Cl.
CPC ...
Abstract
A screw machine for treating at least partially powdery bulk material has a housing with at least one housing bore and a screw arranged in the housing bore. A vacuum housing portion is provided, which is formed as a vacuum housing insert, which is releasably attached in the housing, in which a metal nonwoven is exchangeably held as a gas-permeable wall portion on a base body.