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:
Jun. 12, 2018

Filed:

May. 31, 2012
Applicants:

Martin Larsson, Sundbyberg, SE;

Alexander Fullemann, Stockholm, SE;

Inventors:

Martin Larsson, Sundbyberg, SE;

Alexander Fullemann, Stockholm, SE;

Assignee:

XYLEM IP HOLDINGS LLC, White Plains, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 23/04 (2006.01); F04D 13/08 (2006.01); F04D 15/02 (2006.01);
U.S. Cl.
CPC ...
F04B 23/04 (2013.01); F04D 13/08 (2013.01); F04D 15/029 (2013.01); F04D 15/0218 (2013.01);
Abstract

A method for automatic mutual alternation between an arbitrary number of pumps by the control of each individual pump, which makes use of a start condition for a state change from an inactive state of the pump into an active state of the pump to be performed, as well as makes use of a stop condition for a state change from the active state into the inactive state to be performed. The method includes a sub method (Find start condition) that includes the step of, after a predetermined stage, arbitrarily changing the start condition of the individual pump within predetermined limits.


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