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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.:

US 9845803 B1

PDFFull Text
Date of Patent:
Dec. 19, 2017

Filed:

Jun. 12, 2013

Screw pump

Applicant:

Sterling Industry Consult Gmbh, Itzehoe, DE;

Inventors:

Heiner Kösters, Itzehoe, DE;

Jörg Temming, Kölln-Reisiek, DE;

Assignee:

Sterling Industry Consult GmbH, Itzehoe, DE;

Attorney:

Alix, Yale & Ristas, LLP

Primary Examiner:

Mark Laurenzi

Assistant Examiner:

Anthony Ayala Delgado

Int. Cl.
CPC ...
F04C 18/08 (2006.01); F04C 23/00 (2006.01); F04C 18/16 (2006.01);
U.S. Cl.
CPC ...
F04C 23/003 (2013.01); F04C 18/084 (2013.01); F04C 18/086 (2013.01); F04C 18/16 (2013.01); F04C 2220/12 (2013.01); F04C 2230/605 (2013.01); F04C 2240/402 (2013.01);
Abstract

The invention relates to a screw pump having two screws, in which screw pump each screw has a first thread and a second thread. The threads extend in each case from a suction side to a delivery side. The threads are in engagement with one another, with the result that the threads are divided into a plurality of working chambers, the volume of which decreases from the suction side to the delivery side. According to the invention, the threads have two thread turns. Moreover, the invention relates to a screw for a pump of this type. On account of the uniform distribution of mass of the two-turn threads, the pump can be operated at a high rotational speed, with the result that the throughput of the pump is increased.

Find Patent Forward Citations

Kösters, Heiner. (2017). Screw pump (U.S. Patent No. 9845803). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9845803

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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