09551344 is referenced by 1 patents and cites 990 patents.

In accordance with one aspect, the present invention provides a pumping system for at least one aquatic application. The pumping system includes a pump, a motor coupled to the pump, an interface associated with the pump designed to receive input instructions from a user, and a controller in communication with the motor. The controller determines a blockage condition based on a power consumption value of the motor, and further includes an auto-restart function that is designed to allow the pump to automatically restart after detection of the blockage.

Title
Anti-entrapment and anti-dead head function
Application Number
14/97101
Publication Number
9551344 (B2)
Application Date
December 4, 2013
Publication Date
January 24, 2017
Inventor
Florin Lungeanu
Egersund
DK
Gert Kjaer
Soenderborg
DK
Peter Westermann Rasmussen
Soenderborg
DK
Lars Hoffmann Berthelsen
Kolding
DK
Robert W Stiles Jr
Cary
NC, US
Agent
Quarles & Brady
Assignee
Danfoss Drives
DK
Pentair Water Pool and
NC, US
IPC
F04B 49/20
F04D 15/00
F04D 13/06
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