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.

Date of Patent:
Aug. 27, 2019

Filed:

Sep. 28, 2015
Applicant:

Xylem Ip Management S.à R.l., Senningerberg, LU;

Inventor:

Jens Reimer, Täby, SE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 41/00 (2006.01); B66D 5/16 (2006.01); F04D 13/08 (2006.01); F04D 29/60 (2006.01); B66D 1/36 (2006.01); F04C 13/00 (2006.01); F04D 29/64 (2006.01);
U.S. Cl.
CPC ...
B66D 5/16 (2013.01); F04D 13/086 (2013.01); F04D 29/607 (2013.01); B66D 1/36 (2013.01); B66D 2700/02 (2013.01); B66D 2700/03 (2013.01); F04C 13/008 (2013.01); F04D 29/648 (2013.01);
Abstract

A chain tensioning arrangement for a column pipe which is configured to house a submersible pump. The chain tensioning arrangement includes a radially extending cross beam, a spring arrangement connected to the cross beam, at least one spring member, and an arm that is movably connected to the cross beam. The arm includes an engagement member configured to optionally engage a chain connected to the pump. The arm is displaceable in the axial direction between a lower position and an upper position. The spring member is arranged to displace the arm in the direction from the lower position towards the upper position. Also described is a pump station including a column pipe, a submersible pump arranged in the column pipe and an axially extending chain connected to the pump and configured to move the pump in the column pipe.


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