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. 26, 2020
Filed:
Jun. 18, 2018
Applicant:
Tracto-technik Gmbh & Co. KG, Lennestadt, DE;
Inventors:
Elmar Koch, Eslohe, DE;
Martin Köper, Attendorn, DE;
Assignee:
TRACTO-TECHNIK GMBH & CO. KG, Lennestadt, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 43/12 (2006.01); C09K 8/24 (2006.01); E21B 21/06 (2006.01); B01F 15/02 (2006.01); B01F 3/12 (2006.01); B01F 7/02 (2006.01); E21B 7/00 (2006.01); E21B 7/04 (2006.01);
U.S. Cl.
CPC ...
E21B 21/062 (2013.01); B01F 3/1221 (2013.01); B01F 7/02 (2013.01); B01F 15/026 (2013.01); B01F 15/0251 (2013.01); C09K 8/24 (2013.01); E21B 7/005 (2013.01); E21B 7/046 (2013.01); E21B 43/12 (2013.01); B01F 2003/1257 (2013.01); B01F 2015/0221 (2013.01);
Abstract
A mixing system for producing a drilling fluid for ground drilling includes a feed for a powdered medium and a mixing chamber with a feed for a fluid medium. A space is provided between the feed for the powdered medium and the mixing chamber, having sliding elements therein, which sliding elements can seal off the space at one end.