Patents by Inventor John L. Lumsden
John L. Lumsden has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20170338740Abstract: An IGBT/FET-based energy savings device, system and method wherein a predetermined amount of voltage below a nominal line voltage and/or below a nominal appliance voltage is saved, thereby conserving energy. Phase input connections are provided for inputting analog signals into the device and system. A magnetic flux concentrator senses the incoming analog signal and a volts zero crossing point detector determines the zero volts crossing point of the signal. The positive half cycle and negative half cycle of the signal are identified and routed to a digital signal processor for processing the signal. The signal is reduced by pulse width modulation and the reduced amount of energy is outputted, thereby yielding an energy savings for an end user.Type: ApplicationFiled: April 17, 2017Publication date: November 23, 2017Applicant: The Powerwise Group, Inc.Inventor: John L Lumsden
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Patent number: 9716449Abstract: A system and method are provided for reducing the energy consumed by a pump jack electric motor by reducing the supply voltage to the motor when the motor would be generating energy in open loop mode. By substantially eliminating the energy generation mode, the braking action of the utility grid in limiting the acceleration of the motor and system that would otherwise occur is substantially removed. The motor and system will speed up, allowing the natural kinetic energy of the cyclic motion to perform part of the pumping action. In particular, when the energy consumption for the electric motor connected with the device having a rotating or reciprocating mass goes to zero, the line voltage to the motor is switched off, causing the frequency of the voltage across the motor terminals to increase. When the period of the voltage across the motor terminals returns to substantially the same as the period of the line voltage, the line voltage is switched on or reapplied to the motor.Type: GrantFiled: April 1, 2014Date of Patent: July 25, 2017Assignee: The PowerWise Group, Inc.Inventors: John L. Lumsden, Paul H. Kelley, Vasan Venkataraman
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Patent number: 9716431Abstract: An IGBT/FET-based energy savings device, system and method wherein a predetermined amount of voltage below a nominal line voltage and/or below a nominal appliance voltage is saved, thereby conserving energy. Phase input connections are provided for inputting analog signals into the device and system. A magnetic flux concentrator senses the incoming analog signal and a volts zero crossing point detector determines the zero volts crossing point of the signal. The positive half cycle and negative half cycle of the signal are identified and routed to a digital signal processor for processing the signal. The signal is reduced by pulse width modulation and the reduced amount of energy is outputted, thereby yielding an energy savings for an end user.Type: GrantFiled: April 11, 2014Date of Patent: July 25, 2017Assignee: The PowerWise Group, Inc.Inventor: John L Lumsden
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Patent number: 9628015Abstract: A system and method are provided for saving energy for an electric motor having periodic load variations by reducing the supply voltage to the motor during an open loop mode. The motor and system will speed up, allowing the natural kinetic energy of the cyclic motion to perform part of the pumping action. A closed loop controller computes information from the observed phase angle between the voltage and current supplied to the motor. By reducing the supply voltage to the motor, the observed phase angle may be reduced to a target phase angle value. By allowing some current flow, primarily of a reactive nature, an observable feedback parameter may be used in the closed loop control system as an indication of the load condition, to which the closed loop motor controller may react, supplying power when needed, such as in the energy consumption mode.Type: GrantFiled: August 29, 2014Date of Patent: April 18, 2017Assignee: The PowerWise Group, Inc.Inventors: John L. Lumsden, Paul H. Kelley, Vasan Venkataraman
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Publication number: 20150056083Abstract: A system and method are provided for saving energy for an electric motor having periodic load variations by reducing the supply voltage to the motor during an open loop mode. The motor and system will speed up, allowing the natural kinetic energy of the cyclic motion to perform part of the pumping action. A closed loop controller computes information from the observed phase angle between the voltage and current supplied to the motor. By reducing the supply voltage to the motor, the observed phase angle may be reduced to a target phase angle value. By allowing some current flow, primarily of a reactive nature, an observable feedback parameter may be used in the closed loop control system as an indication of the load condition, to which the closed loop motor controller may react, supplying power when needed, such as in the energy consumption mode.Type: ApplicationFiled: August 29, 2014Publication date: February 26, 2015Inventors: John L. Lumsden, Paul H. Kelley, Vasan Venkataraman
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Publication number: 20140368172Abstract: An IGBT/FET-based energy savings device, system and method wherein a predetermined amount of voltage below a nominal line voltage and/or below a nominal appliance voltage is saved, thereby conserving energy. Phase input connections are provided for inputting analog signals into the device and system. A magnetic flux concentrator senses the incoming analog signal and a volts zero crossing point detector determines the zero volts crossing point of the signal. The positive half cycle and negative half cycle of the signal are identified and routed to a digital signal processor for processing the signal. The signal is reduced by pulse width modulation and the reduced amount of energy is outputted, thereby yielding an energy savings for an end user.Type: ApplicationFiled: April 11, 2014Publication date: December 18, 2014Inventor: John L. Lumsden
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Publication number: 20140346896Abstract: A system and method are provided for managing energy usage that includes obtaining an allocated power value associated with a predetermined time period, metering at least one of consumed power and corresponding consumed energy to determine a consumed power value and a consumed energy value and prompting for a reduced load condition when the consumed power value exceeds the allocated power value. The system and method may further include obtaining a line voltage value, comparing the line voltage value to a threshold voltage value, and obtaining energy saving parameters that define a reduced voltage value. A reduced power value that corresponds to the reduced voltage value may be supplied, the reduced power value being supplied when the line voltage value exceeds the threshold voltage value.Type: ApplicationFiled: August 5, 2014Publication date: November 27, 2014Inventors: John L. Lumsden, Rafael E. Zaga
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Publication number: 20140294602Abstract: A system and method are provided for reducing the energy consumed by a pump jack electric motor by reducing the supply voltage to the motor when the motor would be generating energy in open loop mode. By substantially eliminating the energy generation mode, the braking action of the utility grid in limiting the acceleration of the motor and system that would otherwise occur is substantially removed. The motor and system will speed up, allowing the natural kinetic energy of the cyclic motion to perform part of the pumping action. In particular, when the energy consumption for the electric motor connected with the device having a rotating or reciprocating mass goes to zero, the line voltage to the motor is switched off, causing the frequency of the voltage across the motor terminals to increase. When the period of the voltage across the motor terminals returns to substantially the same as the period of the line voltage, the line voltage is switched on or reapplied to the motor.Type: ApplicationFiled: April 1, 2014Publication date: October 2, 2014Inventors: John L. Lumsden, Paul H. Kelley, Vasan Venkataraman
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Patent number: 8823314Abstract: A system and method are provided for reducing the energy consumed by a pump jack electric motor by reducing the supply voltage to the motor when the motor would be generating energy in open loop mode. By substantially eliminating the energy generation mode, the braking action of the utility grid in limiting the acceleration of the motor and system that would otherwise occur is substantially removed. The motor and system will speed up, allowing the natural kinetic energy of the cyclic motion to perform part of the pumping action. A closed loop controller in electrical connection with the motor computes the necessary information from the observed phase angle between the voltage and current supplied to the motor. By reducing the supply voltage to the motor, the observed phase angle may be reduced to a target phase angle value.Type: GrantFiled: September 1, 2010Date of Patent: September 2, 2014Assignee: The Powerwise Group, Inc.Inventors: John L. Lumsden, Paul H. Kelley, Vasan Venkataraman
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Patent number: 8723488Abstract: An energy savings device, system, and method wherein a predetermined amount of voltage below a nominal line voltage and/or below a nominal appliance voltage is saved, thereby conserving energy. Phase input connections are provided for inputting analog signals into the device and system. A volts zero crossing point detector determines the zero volts crossing point of the signal. The positive half cycle and negative half cycle of the signal are identified and routed to a digital signal processor for processing the signal. The signal is reduced by pulse width modulation and the reduced amount of energy is outputted, thereby yielding an energy savings for an end user.Type: GrantFiled: December 20, 2011Date of Patent: May 13, 2014Assignee: The PowerWise Group, Inc.Inventor: John L. Lumsden
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Patent number: 8698447Abstract: A system and method are provided for reducing the energy consumed by a pump jack electric motor by reducing the supply voltage to the motor when the motor would be generating energy in open loop mode. By substantially eliminating the energy generation mode, the braking action of the utility grid in limiting the acceleration of the motor and system that would otherwise occur is substantially removed. The motor and system will speed up, allowing the natural kinetic energy of the cyclic motion to perform part of the pumping action.Type: GrantFiled: April 19, 2012Date of Patent: April 15, 2014Assignee: The Powerwise Group, Inc.Inventors: John L. Lumsden, Paul H. Kelley, Vasan Venkataraman
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Patent number: 8619443Abstract: A system and method are provided for increasing and maintaining voltage. A transformer's secondary windings are connected between the hot input line and the hot output line, and are not switched. The secondary windings may be in series for 220/230 Vrms, and in parallel for 120/127 Vrms. Alternatively, the transformer may be a single voltage type specifically for 230 V, 120 V, or any other voltage range. A microprocessor measures incoming voltage and controls an electronic switch on the primary windings side of the transformer to short circuit the primary windings when the transformer is not needed. When voltage boost is needed, the switch may be controlled to connect the primary windings to neutral. When the primary windings are switched to neutral, the secondary voltage adds to the incoming AC line voltage. There may be multiple taps on the primary windings selected by the microprocessor for providing differing boost levels at differing input voltage levels.Type: GrantFiled: September 29, 2010Date of Patent: December 31, 2013Assignee: The Powerwise Group, Inc.Inventor: John L. Lumsden
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Publication number: 20120213645Abstract: A system and method are provided for reducing the energy consumed by a pump jack electric motor by reducing the supply voltage to the motor when the motor would be generating energy in open loop mode. By substantially eliminating the energy generation mode, the braking action of the utility grid in limiting the acceleration of the motor and system that would otherwise occur is substantially removed. The motor and system will speed up, allowing the natural kinetic energy of the cyclic motion to perform part of the pumping action.Type: ApplicationFiled: April 19, 2012Publication date: August 23, 2012Applicant: The Powerwise Group, Inc.Inventors: John L. Lumsden, Paul H. Kelley, Vasan Venkataraman
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Publication number: 20120086415Abstract: An IGBT/FET-based energy savings device, system and method (1) wherein a predetermined amount of voltage below a nominal line voltage and/or below a nominal appliance voltage is saved, thereby conserving energy. Phase input connections (2) are provided for inputting analog signals into the device and system (1). A magnetic flux concentrator (3) senses the incoming analog signal (20) and a volts zero crossing point detector (5) determines the zero volts crossing point (21) of the signal (20). The positive half cycle (22) and negative half cycle (23) of the signal (20) are identified and routed to a digital signal processor (10) for processing the signal (20). The signal (20) is reduced by pulse width modulation and the reduced amount of energy is outputted, thereby yielding an energy savings for an end user.Type: ApplicationFiled: December 20, 2011Publication date: April 12, 2012Applicant: THE POWERWISE GROUP, INC.Inventor: John L. Lumsden
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Publication number: 20120075896Abstract: A system and method are provided for increasing and maintaining voltage. A transformer's secondary windings are connected between the hot input line and the hot output line, and are not switched. The secondary windings may be in series for 220/230 Vrms, and in parallel for 120/127 Vrms. Alternatively, the transformer may be a single voltage type specifically for 230 V, 120 V, or any other voltage range. A microprocessor measures incoming voltage and controls an electronic switch on the primary windings side of the transformer to short circuit the primary windings when the transformer is not needed. When voltage boost is needed, the switch may be controlled to connect the primary windings to neutral. When the primary windings are switched to neutral, the secondary voltage adds to the incoming AC line voltage. There may be multiple taps on the primary windings selected by the microprocessor for providing differing boost levels at differing input voltage levels.Type: ApplicationFiled: September 29, 2010Publication date: March 29, 2012Applicant: The Powerwise Group, Inc.Inventor: John L. Lumsden
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Patent number: 8120307Abstract: A system and method are provided for constant loading in AC power applications where at least one turn-on point of at least one half cycle of a modulating sine wave is randomly selected; at least one turn-off point is determined; and at least one slice located between the at least one turn-on point and turn-off point is removed. The slices may be removed by utilizing insulated gate bipolar transistors or field effect transistors.Type: GrantFiled: August 6, 2008Date of Patent: February 21, 2012Assignee: The Powerwise Group, Inc.Inventor: John L. Lumsden
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Patent number: 8085010Abstract: A TRIAC/SCR-based energy savings device, system and method (1) wherein a predetermined amount of voltage below a nominal line voltage and/or below a nominal appliance voltage is saved, thereby conserving energy. Phase input connections (2) are provided for inputting analog signals into the device and system (1). A magnetic flux concentrator (3) senses the incoming analog signal (20) and a volts zero crossing point detector (5) determines the zero volts crossing point (21) of the signal (20). The positive half cycle (22) and negative half cycle (23) of the signal (20) are identified and routed to a digital signal processor (10) for processing the signal (20). The signal (20) is reduced by pulse width modulation and the reduced amount of energy is outputted, thereby yielding an energy savings for an end user.Type: GrantFiled: August 6, 2008Date of Patent: December 27, 2011Assignee: The Powerwise Group, Inc.Inventor: John L Lumsden
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Patent number: 8085009Abstract: An IGBT/FET-based energy savings device, system and method (1) wherein a predetermined amount of voltage below a nominal line voltage and/or below a nominal appliance voltage is saved, thereby conserving energy. Phase input connections (2) are provided for inputting analog signals into the device and system (1). A magnetic flux concentrator (3) senses the incoming analog signal (20) and a volts zero crossing point detector (5) determines the zero volts crossing point (21) of the signal (20). The positive half cycle (22) and negative half cycle (23) of the signal (20) are identified and routed to a digital signal processor (10) for processing the signal (20). The signal (20) is reduced by pulse width modulation and the reduced amount of energy is outputted, thereby yielding an energy savings for an end user.Type: GrantFiled: August 4, 2008Date of Patent: December 27, 2011Assignee: The Powerwise Group, Inc.Inventor: John L. Lumsden
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Patent number: 8004255Abstract: A power supply for IGBT/FET drivers (1) that provides separated, isolated power to each IGBT/FET driver in a system wherein the power supply (1) is connected to at least one voltage controller (16) having at least one line in main power connector (14), at least one line out main power connector (15) and at least one drive signal command input (11) for connection to at least one IGBT/FET driver. The power supply (1) includes at least one power supply unit (5) in connection with at least voltage controller (16), at least one diode (2) for routing a predetermined amount of power from the at least one voltage controller (16) to at least one capacitor (3) and at least one capacitor (3) for routing said predetermined amount of power from said at least one diode (2) to said at least one voltage controller (16).Type: GrantFiled: August 7, 2008Date of Patent: August 23, 2011Assignee: The Powerwise Group, Inc.Inventor: John L. Lumsden
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Publication number: 20110182094Abstract: A system and method are provided for managing electrical power usage. During a predetermined time period, such as during blackout conditions, a digital signal processor (DSP) controls an IGBT/FET-based device to supply an allocated amount of power. When the consumed amount of power exceeds the allocated amount, the DSP shuts off the power. Alternatively, the system provides a signal to reduce the consumed power. If sufficient load has not been reduced after a predetermined amount of time, the power is shut off. Further alternatively or in addition, the DSP may shut off power to predetermined electrical outlets, while providing power to other electrical outlets, to reduce the power usage to the predetermined amount. During other time periods, the DSP controls the IGBT/FET device to provide a predetermined voltage that is less than the AC incoming line voltage.Type: ApplicationFiled: February 14, 2011Publication date: July 28, 2011Applicant: The Powerwise Group, Inc.Inventors: John L. Lumsden, Rafael E. Zaga