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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 10393122 B1

PDFFull Text
Date of Patent:
Aug. 27, 2019

Filed:

Jun. 15, 2015

Method for shutting off a pump as well as pump station arrangement

Applicant:

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

Inventors:

Martin Larsson, Sundbyberg, SE;

Jürgen Mökander, Sollentuna, SE;

Martin Zetterquist, Solna, SE;

Assignee:

XYLEM EUROPE GMBH, , CH;

Attorney:

RatnerPrestia

Primary Examiner:

Patrick Hamo

Int. Cl.
CPC ...
F04D 15/02 (2006.01); F04D 15/00 (2006.01); F04D 13/08 (2006.01); F04B 49/02 (2006.01); F04B 49/20 (2006.01); F04D 29/18 (2006.01); F04D 1/00 (2006.01);
U.S. Cl.
CPC ...
F04D 15/0066 (2013.01); F04B 49/02 (2013.01); F04B 49/20 (2013.01); F04D 13/086 (2013.01); F04D 15/0083 (2013.01); F04D 15/0218 (2013.01); F04D 29/18 (2013.01); F04D 1/00 (2013.01); F05D 2270/042 (2013.01);
Abstract

A pump station arrangement and a method for turning off a pump configured for pumping liquid via a conduit. The pump, before being turned off, being driven at an operational frequency (F) by a control unit. The method is characterized by the steps of, ramping down the frequency of the pump due to a turn off instruction, the terminal frequency of the ramping down being equal to the operational frequency (F) of the pump minus at least 10 Hz and the ramping down time being at least a reflection time (T) for the conduit in question, and the terminal frequency of the ramping down not being less than 10 Hz, and stopping the pump after the ramping down.

Find Patent Forward Citations

Larsson, Martin. (2019). Method for shutting off a pump as well as pump station arrangement (U.S. Patent No. 10393122). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10393122

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

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