Patents by Inventor Graham A. Scott
Graham A. Scott 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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Patent number: 10119545Abstract: The present invention provides apparatus featuring a signal processor or processing module that may be configured at least to: receive signaling containing information about calibrated motor speed and power data for a hydronic pumping system; and determine system pumping flow rate and pressure associated with an equivalent hydronic system characteristic variable, based at least partly on the signaling received. The signal processor or processing module may be configured to provide corresponding signaling containing information about the system pumping flow rate and pressure determined. The corresponding signaling may contain information used to control the hydronic pumping system.Type: GrantFiled: November 27, 2013Date of Patent: November 6, 2018Assignee: Fluid Handling LLCInventors: Andrew A. Cheng, Graham A. Scott, James J. Gu
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Patent number: 10048701Abstract: Apparatus, such as a pump controller, features a signal processor configured at least to: receive signaling containing information about a linear set point control curve based at least partly on an adaptive set point control curve related to fluid being pumped by a pump in a pumping system, and determine a control set point based at least partly on the signaling received. The signal processor may be configured to provide a control signal containing information to control the pump based on the control set point determined.Type: GrantFiled: December 17, 2012Date of Patent: August 14, 2018Assignee: Fluid Handling LLCInventors: Andrew A. Cheng, James J. Gu, Graham A. Scott
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Patent number: 9938970Abstract: The present invention provides apparatus, including a hydronic sensorless pumping system, that features a signal processor or processing module configured to receive signaling containing information about motor readout values of power and speed, and also about pump and system characteristics equations together with empirical power equations that are constructed by a polynomial best-fit function together with pump affinity laws based upon a pump curve published by a pump manufacturer; and determine corresponding signaling containing information about a pump or system pressure and a flow rate at the motor readout values of power and speed, based upon the signaling received.Type: GrantFiled: April 7, 2015Date of Patent: April 10, 2018Assignee: Fluid Handling LLCInventors: Andrew A. Cheng, James J. Gu, Graham A. Scott
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Patent number: 9897084Abstract: The present invention provides apparatus that features a signal processor or processing module configured to receive signaling containing information about an adaptive or self-calibrating set point control curve and a varying equivalent system characteristic curve based at least partly on an instant pump pressure and a flow rate using an adaptive moving average filter, and equivalent hydronic system characteristics associated with the instant pump pressure and the flow rate to corresponding motor power and speed reconstructed and remapped using a discrete numerical approach; and determine an adaptive pressure set point, based at least partly on the signaling received.Type: GrantFiled: July 24, 2014Date of Patent: February 20, 2018Assignee: Fluid Handling LLCInventors: Andrew A. Cheng, James J. Gu, Graham A. Scott
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System and flow adaptive sensorless pumping control apparatus for energy saving pumping applications
Patent number: 9846416Abstract: A signal processor receives signaling containing information about flow rates from sensorless converters in zone circulators in heating/cooling zones controlled by temperature sensors in a hydronic heating system in order to derive an adaptive pressure set point to meet the flow rates requested by the heating/cooling zones using an adaptive system and flow control curve equation, the signaling containing information about total flow rates requested by the zone circulators; determines desired pump speeds for the zone circulators to meet temperature requirements in heat zones; provides corresponding signaling containing information about the desired pump speeds; and/or determines the adaptive pump control curve equation based upon an adaptive system curve and as a moving maximum system flow rate depending on an adaptive pressure set point, a system flow rate requested by temperature loads, a minimum pressure at no flow, a control curve setting parameter, and an adaptive moving maximum flow and pressure.Type: GrantFiled: June 4, 2015Date of Patent: December 19, 2017Assignee: Fluid Handling LLCInventors: Andrew A. Cheng, James J. Gu, Graham A. Scott -
Patent number: 9611856Abstract: The present invention provides apparatus featuring a signal processor or processing module that may be configured at least to: process signaling containing information about an equilibrium point of pump differential pressure and system pressure formulated in a hydronic domain by utilizing pump and system characteristic curve equations so as to yield system pressure and flow rate at any particular load and time in a pump hydronic system, including using a multi-dimensional sensorless conversion technique; and determine equivalent hydronic system characteristics associated with the pump differential pressure and flow rate to their corresponding motor power and speed reconstructed and remapped by using a discrete numerical approach, based at least partly on the signaling received. The signal processor or processing module may provide corresponding signaling containing information about the system pumping flow rate and pressure determined.Type: GrantFiled: February 24, 2014Date of Patent: April 4, 2017Assignee: Fluid Handling LLCInventors: Andrew A. Cheng, Graham A. Scott, James J. Gu
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SYSTEM AND FLOW ADAPTIVE SENSORLESS PUMPING CONTROL APPARATUS FOR ENERGY SAVING PUMPING APPLICATIONS
Publication number: 20160017889Abstract: A signal processor receives signaling containing information about flow rates from sensorless converters in zone circulators in heating/cooling zones controlled by temperature sensors in a hydronic heating system in order to derive an adaptive pressure set point to meet the flow rates requested by the heating/cooling zones using an adaptive system and flow control curve equation, the signaling containing information about total flow rates requested by the zone circulators; determines desired pump speeds for the zone circulators to meet temperature requirements in heat zones; provides corresponding signaling containing information about the desired pump speeds; and/or determines the adaptive pump control curve equation based upon an adaptive system curve and as a moving maximum system flow rate depending on an adaptive pressure set point, a system flow rate requested by temperature loads, a minimum pressure at no flow, a control curve setting parameter, and an adaptive moving maximum flow and pressure.Type: ApplicationFiled: June 4, 2015Publication date: January 21, 2016Inventors: Andrew A. CHENG, James J. GU, Graham A. SCOTT -
Publication number: 20160010639Abstract: The present invention provides apparatus, including a hydronic sensorless pumping system, that features a signal processor or processing module configured to receive signaling containing information about motor readout values of power and speed, and also about pump and system characteristics equations together with empirical power equations that are constructed by a polynomial best-fit function together with pump affinity laws based upon a pump curve published by a pump manufacturer; and determine corresponding signaling containing information about a pump or system pressure and a flow rate at the motor readout values of power and speed, based upon the signaling received.Type: ApplicationFiled: April 7, 2015Publication date: January 14, 2016Inventors: Andrew A. CHENG, James J. GU, Graham A. SCOTT
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Publication number: 20150032271Abstract: The present invention provides apparatus that features a signal processor or processing module configured to receive signaling containing information about an adaptive or self-calibrating set point control curve and a varying equivalent system characteristic curve based at least partly on an instant pump pressure and a flow rate using an adaptive moving average filter, and equivalent hydronic system characteristics associated with the instant pump pressure and the flow rate to corresponding motor power and speed reconstructed and remapped using a discrete numerical approach; and determine an adaptive pressure set point, based at least partly on the signaling received.Type: ApplicationFiled: July 24, 2014Publication date: January 29, 2015Inventors: Andrew A. CHENG, James J. GU, Graham A. SCOTT
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Publication number: 20140288716Abstract: The present invention provides apparatus featuring a signal processor or processing module that may be configured at least to: process signaling containing information about an equilibrium point of pump differential pressure and system pressure formulated in a hydronic domain by utilizing pump and system characteristic curve equations so as to yield system pressure and flow rate at any particular load and time in a pump hydronic system, including using a multi-dimensional sensorless conversion technique; and determine equivalent hydronic system characteristics associated with the pump differential pressure and flow rate to their corresponding motor power and speed reconstructed and remapped by using a discrete numerical approach, based at least partly on the signaling received. The signal processor or processing module may provide corresponding signaling containing information about the system pumping flow rate and pressure determined.Type: ApplicationFiled: February 24, 2014Publication date: September 25, 2014Applicant: Fluid Handling LLC.Inventors: Andrew A. CHENG, Graham A. SCOTT, James J. GU
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Publication number: 20140249682Abstract: The present invention provides apparatus featuring a signal processor or processing module that may be configured at least to: receive signaling containing information about calibrated motor speed and power data for a hydronic pumping system; and determine system pumping flow rate and pressure associated with an equivalent hydronic system characteristic variable, based at least partly on the signaling received. The signal processor or processing module may be configured to provide corresponding signaling containing information about the system pumping flow rate and pressure determined. The corresponding signaling may contain information used to control the hydronic pumping system.Type: ApplicationFiled: November 27, 2013Publication date: September 4, 2014Applicant: Fluid Handling LLC.Inventors: Andrew A. CHENG, Graham A. SCOTT, James J. GU
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Publication number: 20140005841Abstract: Apparatus, such as a pump controller, features a signal processor configured at least to: receive signaling containing information about a linear set point control curve based at least partly on an adaptive set point control curve related to fluid being pumped by a pump in a pumping system, and determine a control set point based at least partly on the signaling received. The signal processor may be configured to provide a control signal containing information to control the pump based on the control set point determined.Type: ApplicationFiled: December 17, 2012Publication date: January 2, 2014Applicant: Fluid Handling LLCInventors: Andrew A. CHENG, James J. GU, Graham A. SCOTT
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Publication number: 20040093811Abstract: A system and method for forming an area rug using at least one replaceable wear surface positioned on a floor or subfloor. The system includes a base and at least one replaceable wear surface, of which both may be cut to fit a floor space of almost any shape. The system may be attached to the floor using an adhesive, a double-sided tape, or a cloth, with or without adhesive, or not attached at all. The cloth can be applied coextensively to the base and replaceable wear surface, or intermittingly, such as only at intersecting corners. The system can be sold to consumers as a self contained kit or as a group of components that can be separately selected.Type: ApplicationFiled: December 8, 2003Publication date: May 20, 2004Inventors: David D. Oakey, Graham A. Scott, James W. Hadden
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Publication number: 20030110720Abstract: Panels (16) for use with access flooring (10) having a thick, resilient pad (20) bonded directly to and covering the entire surface of the panel (16). The pad (20) acts like the backing layer of a conventional floor treatment by absorbing impact and attenuation sound. A reinforced face cloth module (22) having only a face layer (24) and a stabilizing layer (26) is used to cover the pad (20) to protect the pad from wear and to provide an attractive floor treatment. The reinforced face cloth module (22) can be detachable or bonded directly to the pad. Alternatively, hook and loop fasteners can affix the pad to the face cloth module.Type: ApplicationFiled: October 4, 2002Publication date: June 19, 2003Inventors: Raymond A. Berard, Ray C. Anderson, Graham A. Scott, David Whitley
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Patent number: 6526704Abstract: Raised access flooring utilizing panels having a thick, resilient pad bonded directly to and covering the entire surface of the panel. The pad acts like the backing layer of a conventional floor treatment by absorbing impact and attenuation sound. A reinforced face cloth module having only a face layer and a stabilizing layer covers the pad to protect the pad from wear and to provide an attractive floor treatment. The reinforced face cloth module can be detachable or bonded directly to the pad. Alternatively, hook and loop fasteners can removably affix the pad to the face cloth module.Type: GrantFiled: December 22, 2000Date of Patent: March 4, 2003Assignee: Interface, Inc.Inventors: Raymond A Berard, Ray C. Anderson, Graham A. Scott, David Whitley
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Patent number: 5204798Abstract: A rating plug-metering accessory for molded case circuit breakers of the type employing an electronic trip unit is in the form of a rating plug enclosure that is optionally installed in the circuit breaker cover. Besides setting the ampere rating of the electronic trip unit, the rating plug-metering accessory further provides direct readout of the current in any of the phases of a multi-phase power distribution circuit. The rating plug-metering accessory can be either factory-installed or installed in situ.Type: GrantFiled: July 22, 1991Date of Patent: April 20, 1993Assignee: General Electric CompanyInventor: Graham A. Scott
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Patent number: 5027091Abstract: An electronic circuit interrupter includes an electronic trip circuit contained within a circuit interrupter enclosure along with an externally accessible rating plug for setting the ampere rating. The rating plug includes keying tabs that fit within corresponding keying slots formed on the top surface of the electronic circuit interrupter enclosure. Interlock is provided between the rating plug and the electric panelboard which includes a plurality of electronic circuit interrupters connected within an industrial power system. Tabs formed on the side walls of the rating plug are trapped under the panelboard face plate to prevent removal of the rating plug without first removing the panelboard face plate.Type: GrantFiled: February 15, 1989Date of Patent: June 25, 1991Assignee: General Electric CompanyInventors: David J. Lesslie, Robert A. Morris, Alan J. Messerli, Graham A. Scott, Alexander A. Krajewski
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Patent number: 5015983Abstract: A compact circuit breaker containing an electronic trip unit for interrupting overcurrent conditions within a protected circuit is made operable over a wide operating current range by means of current transformers having multiple turn primary windings. The primary windings are selected to provide a constant ampere-turns ratio to the current transformers without changing the size of the secondary winding or the volume of the transformer core.Type: GrantFiled: June 18, 1990Date of Patent: May 14, 1991Assignee: General Electric CompanyInventors: Donna C. DeRosier, Richard A. Dziura, Joseph M. Palmieri, Eric D. Juntwait, Linda Y. Jacobs, Graham A. Scott
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Patent number: 4907342Abstract: A circuit breaker enclosure consists of a cover and a case designed for robotic assembly of the circuit breaker components. A current transformer assembly and a printed wire board containing the electronic trip unit circuit are precisely positioned within the case and cover by means of a transitory circuit breaker case support platform. The transitory support platform includes four upstanding posts that pass through openings formed in the circuit breaker case and are received within corresponding openings through the circuit breaker cover. Leads extending from the current transformer assembly within the case become automatically positioned within corresponding openings through the printed wire board by means of tapered lead-in openings formed within the circuit breaker cover.Type: GrantFiled: July 31, 1989Date of Patent: March 13, 1990Assignee: General Electric CompanyInventors: Roger N. Castonguay, Joseph M. Palmieri, Graham A. Scott
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Patent number: 4884048Abstract: A circuit breaker enclosure consists of a cover and a case designed for robotic assembly of the circuit breaker components. A current transformer assembly and a printed wire board containing the electronic trip unit circuit are precisely positioned within the case and cover by means of a transitory circuit breaker case support platform. The transitory support platform includes four upstanding posts that pass through openings formed in the circuit breaker case and are received within corresponding openings through the circuit breaker cover. Leads extending from the current transformer assembly within the case become automatically positioned within corresponding openings through the printed wire board by means of tapered lead-in openings formed within the circuit breaker cover.Type: GrantFiled: January 18, 1989Date of Patent: November 28, 1989Assignee: General Electric CompanyInventors: Roger N. Castonguay, Joseph M. Palmieri, Graham A. Scott