G05B- CONTROL OR REGULATING SYSTEMS IN GENERAL FUNCTIONAL ELEMENTS OF SUCH SYSTEMS MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS.F04D15/0236- Lack of liquid level being detected by analysing the parameters of the electric drive, e.g. F04D15/0218- Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply.F04D15/0209- Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid.F04D15/02- Stopping of pumps, or operating valves, on occurrence of unwanted conditions.regulation, of pumps, pumping installations or systems by changing the speed, e.g. regulation, of pumps, pumping installations or systems F04B49/065- Control using electricity and making use of computers.of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 F04B- POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS PUMPS.F04- POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS.F- MECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING.G05D16/202- Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means actuated by an electric motor.G05D16/2013- Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means.G05D16/2006- Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means.G05D16/20- Control of fluid pressure characterised by the use of electric means.G05D- SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES.Assignors: STA-RITE INDUSTRIES, LLC Status Expired - Fee Related legal-status Critical Current Adjusted expiration legal-status Critical Links Assigned to PENTAIR FLOW TECHNOLOGIES, LLC reassignment PENTAIR FLOW TECHNOLOGIES, LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assigned to STA-RITE INDUSTRIES, LLC reassignment STA-RITE INDUSTRIES, LLC CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Application filed by Sta Rite Industries LLC filed Critical Sta Rite Industries LLC Priority to US11/981,739 priority Critical patent/US7990091B2/en Publication of US20080131291A1 publication Critical patent/US20080131291A1/en Application granted granted Critical Publication of US7990091B2 publication Critical patent/US7990091B2/en Assigned to STA-RITE INDUSTRIES, INC. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Family has litigation First worldwide family litigation filed litigation Critical (B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License. Original Assignee Sta Rite Industries LLC Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Koehl Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related, expires Application number US11/981,739 Other versions US20080131291A1 Google Patents Pump controller system and methodĭownload PDF Info Publication number US7990091B2 US7990091B2 US11/981,739 US98173907A US7990091B2 US 7990091 B2 US7990091 B2 US 7990091B2 US 98173907 A US98173907 A US 98173907A US 7990091 B2 US7990091 B2 US 7990091B2 Authority US United States Prior art keywords controller motor pressure pump voltage Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US7990091B2 - Pump controller system and method US7990091B2 - Pump controller system and method
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