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Stiles Robert W, Westermann Rasmussen Peter, Kjaer Gert, Kjartan Runarsson Einar, Fink Hansen Arne, Morando Alberto, Lungeanu Florin, Harvest Nils Ole, Hoffmann Berthelsen Lars, Robol Ronald B, Yahnker Christopher R, Cox Everett, Steen Donald, Murphy Kevin, Woodcock Walter J Jr, Hruby Daniel J: Control algorithm of variable speed pumping system. Pentair Water Pool And, Danfoss Low Power Drives, May 30, 2007: EP1790858-A1 (12 worldwide citation)

A pumping system includes a pump for moving water. In one aspect, this is in connection with performance of an operation. The system includes a variable speed motor operatively connected to drive the pump. A value indicative of flow rate of water is determined and the motor is controlled to adjust t ...


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Cox Everett, Fink Hansen Arne, Harvest Nils Ole, Hoffmann Berthelsen Lars, Hruby Daniel J, Kjaer Gert, Kjartan Runarsson Einar, Lungeanu Florin, Morando Alberto, Murphy Kevin, Robol Ronald B, Steen Donald, Yahnker Christopher, Stiles Robert W, Westermann Rasmussen Peter, Woodcock Walter J Jr: Control algorithm of variable speed pumping system. Pentair Water Pool And, Danfoss Low Power Drives, November 26, 2008: EP1995462-A2 (12 worldwide citation)

A pumping system (10, 110) includes a pump (16, 116) for moving water. In one aspect, this is in connection with performance of an operation. The system (10, 110) includes a variable speed motor (24, 124) operatively connected to drive the pump (16, 116). A value indicative of flow rate of water is ...


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ROBOL Ronald B, HRUBY Daniel J, McCALL Rodney: [fr] SYSTÈME ET PROCÉDÉ DE BLOCAGE DE DÉBIT, [en] FLOW LOCKING SYSTEM AND METHOD. ROBOL Ronald B, HRUBY Daniel J, McCALL Rodney, PENTAIR WATER POOL AND, DAUGHERTY Raye Lynn, May 10, 2013: WO/2013/067206 (2 worldwide citation)

[en] Embodiments of the invention provide a pumping system and method including a flow locking feature. A pump controller includes a user interface configured to initially receive and set a plurality of programmed flow rate settings, a maximum locked flow rate, and a minimum locked flow rate. The pu ...


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Stiles Robert W, Berthelsen Lars Hoffmann, Robol Ronald B, Yahnker Christopher R, Hruby Daniel J, Murphy Kevin, Runarsson Einar Kjarten, Hansen Arne Fink, Lungeanu Florin, Westermann Rasmussen Peter: Speed control. Pentair Water Pool And, Danfoss Low Power Drives, Stiles Robert W, Berthelsen Lars Hoffmann, Robol Ronald B, Yahnker Christopher R, Hruby Daniel J, Murphy Kevin, Runarsson Einar Kjarten, Hansen Arne Fink, Lungeanu Florin, Westermann Rasmussen Peter, FELLOWS Gerald L, June 19, 2008: WO/2008/073413 (2 worldwide citation)

A pumping system for moving water of a swimming pool includes a water pump, an infinitely variable speed motor, and an arrangement for operating the motor. In one example, the pumping system includes a memory configured to store a plurality of retained speed values, an arrangement for providing a pl ...


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Stiles Robert W Jr, Berthelsen Lars Hoffmann, Robol Ronald B, Yahnker Christopher R, Hruby Daniel J, Murphy Kevin, Brown Edward, Maccallum David, Dunn Dennis, Clack Kenneth N, Runarsson Einar Kjarten, Morando Alberto: Pumping system with two way communication. Pentair Water Pool And, Danfoss Low Power Drives, Stiles Robert W Jr, Berthelsen Lars Hoffmann, Robol Ronald B, Yahnker Christopher R, Hruby Daniel J, Murphy Kevin, Brown Edward, Maccallum David, Dunn Dennis, Clack Kenneth N, Runarsson Einar Kjarten, Morando Alberto, FELLOWS Gerald L, June 19, 2008: WO/2008/073436 (1 worldwide citation)

A pumping system for moving water of a swimming pool includes a water pump, a variable speed motor, and an arrangement for controlling the variable speed motor The pumping system further includes an auxiliary device operably connected to the arrangement for controlling, and an arrangement for provid ...


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ROBOL Ronald B, HRUBY Daniel J, COLVIN Johnathan Steven: CLAPET DE REFOULEMENT À DÉPRESSION POUR UN SYSTÈME BRISE-VIDE DE SÉCURITÉ, DISCHARGE VACUUM RELIEF VALVE FOR SAFETY VACUUM RELEASE SYSTEM. PENTAIR WATER POOL AND, ROBOL Ronald B, HRUBY Daniel J, COLVIN Johnathan Steven, DAUGHERTY Raye Lynn, June 14, 2012: WO/2012/078862 (1 worldwide citation)

Embodiments of the invention provide a pumping system and a discharge vacuum relief valve for use in a hydraulic system including a safety vacuum release system pump to circulate water in a swimming pool and/or a spa. The hydraulic system includes one or more check valves located on a discharge side ...


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