Patents Assigned to Taco, Inc.
  • Patent number: 10296016
    Abstract: This invention provides, in various embodiments, a variable frequency drive system for controlling a pump driven by a variable frequency electric motor, with the pump in fluid communication with a fluid system. The drive system of this invention improves the efficiency of the prior variable frequency drive systems by inserting into the memory of the variable frequency drive the maximum flow required for the particular flow system in which the pump is operating and adding an initial pump starting module that limits the initial starting flow rate from the pump to the desired maximum flow rate for the system, which is separately calculated.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: May 21, 2019
    Assignee: Taco, Inc.
    Inventors: Bryan Payne, Eugene Fina, Steven K. Sullivan, Keith M. Desrosiers
  • Publication number: 20190024666
    Abstract: A hydraulic pumping system for pumping a flow of aqueous liquid, for HVAC and potable water systems, through a plurality of hydraulic pump assemblies and mating branching feeder pipes extending between a main inlet pipe and a main outlet pipe for outputting the total flow of water, each of said pump assemblies in operative association with a mating feeder pipe to control aqueous liquid flow through said associated feeder pipe, wherein each of the hydraulic pump assemblies comprises an electric motor, mechanically coupled to a centrifugal pump and a variable frequency drive (VFD) electrically coupled to the motor. A controller is electrically coupled via a communication channel to the VFD of each of the hydraulic pump assemblies, the controller comprising a programmable device programmed to control the speed of each of the motors via the connected VFD.
    Type: Application
    Filed: July 2, 2018
    Publication date: January 24, 2019
    Applicant: Taco, Inc.
    Inventor: Andrew Tucker
  • Publication number: 20180216746
    Abstract: A zone valve control system for a flow valve comprising a direct current rotary electric motor connected to a valve shaft, an electronic control system comprising a microprocessor, an electric measuring device for signaling the presence of a predetermined electrical stall current, a rectifier and a regulator to convert and regulate external AC voltage to a desired DC power output; and an electrical storage system having a total storage capacity sufficient to power the DC electric motor to move the valve between the closed and opened positions; an external sensor for signaling when a certain condition exists in an external zone; the microprocessor controlling the flow and polarity of DC current to the motor; whereby the electronic control system controls movement of a valve operably connected to the output shaft to open or close a valve to maintain a desired predetermined condition in the external zone.
    Type: Application
    Filed: September 25, 2017
    Publication date: August 2, 2018
    Applicant: Taco, Inc.
    Inventors: Robert Kellicker, Richard F. Brindamour, JR., Robert J. Carreiro
  • Publication number: 20180180303
    Abstract: An external control unit to be connected between a power source and an electrically driven pump to act as a smart switch to convert a “dumb” pump into a smart pump. The control system of this invention comprises a microcontroller-operated switch, located between the power source and the pump, or other fluid flow control device to be operated by electricity, and which can be programmed to record usage data of, e.g., hot water, by the household; it sets up the operating times in accordance with such usage. A temperature sensor is connected to the microcontroller to sense a temperature change, in a hot water system is turned on, by measuring an increase in temperature to indicate flow through the hot water pipe, and to record such data. This will determine, in the context of a hot water system, when the pump should be activated to bring up hot water.
    Type: Application
    Filed: February 11, 2015
    Publication date: June 28, 2018
    Applicant: Taco, Inc.
    Inventors: Robert Kellicker, Carl A. Perrone, JR.
  • Patent number: 9866093
    Abstract: The brushless DC motor of the present invention comprises a permanent magnet rotor rotating coaxially with and inside of the stator containing the electric windings, separated by a radial, axially extending gap. The rotor can be formed of four or more permanent, e.g., ferrite ceramic magnets, spaced substantially equidistantly circumferentially around the rotor and extending radially along the axial length of the rotor. The preferred ferrite magnets are substantially corrosion resistant, and thus durable in the wet rotor environment, in which it may be used, sufficient to withstand the effects of even hot salt water. Preferably, four of the permanent magnets are bar magnets, i.e., rectangular in cross-section, extending radially and perpendicularly to the adjacent magnets. Most preferably, the bar magnets are separated by generally wedge-shaped, or quadrant-shaped, sections of magnetic material.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: January 9, 2018
    Assignee: Taco, Inc.
    Inventors: Di Wu, Vladislav Milchev Stakev, Robert F. Birkenstock, Jr.
  • Publication number: 20170175368
    Abstract: An improved, wholly mechanical, valve unit is provided to automatically allow for flow between a high temperature liquid line and a cooler temperature liquid line in order to maintain the immediate availability of hot liquid immediately upstream of the valve, especially for hot water used in a building. The valve unit of the present invention includes a thermally-activated, bi-metal, or more broadly bi-flexive, valve disc, and a smaller diameter valve seat that concentrically contacts the valve disc intermediate the outer circumference and the center of the disc. The bi-flexive disc is provided two-sided, circumferential support, thus substantially equalizing the pressure against both sides of the disc, even when in the closed valve position between the higher temperature, higher pressure, hot water line and the lower pressure cold water line. The valve opens when the temperature differential across the valve disc decreases below a preset amount.
    Type: Application
    Filed: September 11, 2015
    Publication date: June 22, 2017
    Applicant: Taco, Inc.
    Inventors: Andre Renaud, Peter Vandal
  • Publication number: 20160329786
    Abstract: The brushless DC motor of the present invention comprises a permanent magnet rotor rotating coaxially with and inside of the stator containing the electric windings, separated by a radial, axially extending gap. The rotor can be formed of four or more permanent, e.g., ferrite ceramic magnets, spaced substantially equidistantly circumferentially around the rotor and extending radially along the axial length of the rotor. The preferred ferrite magnets are substantially corrosion resistant, and thus durable in the wet rotor environment, in which it may be used, sufficient to withstand the effects of even hot salt water. Preferably, four of the permanent magnets are bar magnets, i.e., rectangular in cross-section, extending radially and perpendicularly to the adjacent magnets. Most preferably, the bar magnets are separated by generally wedge-shaped, or quadrant-shaped, sections of magnetic material.
    Type: Application
    Filed: July 21, 2016
    Publication date: November 10, 2016
    Applicant: Taco, Inc.
    Inventors: Di Wu, Vladislav Milchev Stakev, Robert F. Birkenstock, JR.
  • Patent number: 9401631
    Abstract: The brushless DC motor of the present invention comprises a permanent magnet rotor rotating coaxially with and inside of the stator containing the electric windings, separated by a radial, axially extending gap. The rotor can be formed of four or more permanent, e.g., ferrite ceramic magnets, spaced substantially equidistantly circumferentially around the rotor and extending radially along the axial length of the rotor. The preferred ferrite magnets are substantially corrosion resistant, and thus durable in the wet rotor environment, in which it may be used, sufficient to withstand the effects of even hot salt water. Preferably, four of the permanent magnets are bar magnets, i.e., rectangular in cross-section, extending radially and perpendicularly to the adjacent magnets. Most preferably, the bar magnets are separated by generally wedge-shaped, or quadrant-shaped, sections of magnetic material.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: July 26, 2016
    Assignee: TACO, INC.
    Inventors: Di Wu, Vladislav Milchev Stakev, Robert F. Birkenstock, Jr.
  • Patent number: 9207682
    Abstract: A water pump controlled by a microcontroller and operated to pump hot water for specific recirculation periods during a multi-day cycle. The recirculation periods are determined from hot water usage data logged by the microcontroller during a logging period occurring in the previous multi-day cycle. A preferred cycle is during a seven-day, or one-week, period.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: December 8, 2015
    Assignee: Taco, Inc.
    Inventors: Michael E. McNamara, Robert Kellicker, Christian Gonzales
  • Patent number: 8594853
    Abstract: A water pump controlled by a microcontroller and operated to pump hot water for specific recirculation periods during a multi-day cycle. The recirculation periods are determined from hot water usage data logged by the microcontroller during a logging period occurring in the previous multi-day cycle. A preferred cycle is during a seven-day, or one-week, period.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: November 26, 2013
    Assignee: Taco, Inc.
    Inventors: Michael E. McNamara, Robert Kellicker, Christian Gonzales
  • Patent number: 8511296
    Abstract: Solar heating systems are provided which utilize an integrated fixture for transferring heat from a solar collector to a lower-temperature loop, e.g. a domestic hot water system or radiant heating system. The fixture provides a heat exchanger for transferring heat from the solar collector to the lower temperature loop. The fixture may also include a casting, in which are formed solar collector supply and return ports, lower temperature supply and return ports, a solar collector pump volute, and a lower temperature pump volute. The systems also include two pumps, and a temperature optimization control that varies the speed of at least one of the pumps depending on the temperature of the liquid in the solar collector.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: August 20, 2013
    Assignee: Taco Inc.
    Inventor: David Sweet
  • Publication number: 20120090732
    Abstract: According to the invention, a system for collecting debris is disclosed. The system may include a flexible sheet, two lengthwise members, a handle, and two hooks. The flexible sheet may have a trapezoidal shape having a short edge, a long edge, and side edges. The flexible sheet may also have apertures substantially near the middle of each side edge. Each aperture may be sized to permit the insertion of a hand. The lengthwise members may be encased by the flexible sheet between the apertures and the side edges. The handle may be coupled with one side of the flexible sheet and located between the long edge and a point substantially centered between the two apertures. The first hook may be coupled between the handle and the short edge on that same side. The second hook may be between the first aperture and the short edge on that same side.
    Type: Application
    Filed: October 15, 2010
    Publication date: April 19, 2012
    Applicant: Leaf Taco, Inc.
    Inventor: Benjamin W. Suh
  • Patent number: 7992527
    Abstract: A water feed controller which can provide for the addition of a preset fixed amount of water to be added after a low water condition is removed. This system provides for a preset fixed amount of water to be added to a boiler above the amount which triggers the low water condition. This generally inhibits excess cycling from the boiler operating at its minimum safe water level as well as inhibiting overfilling of the boiler. Further, there is discussed a water feed controller which can measure the amount of water added over a prior predetermined period (such as 30 days) which serves as a floating window of time so that a leak or other condition resulting in overly frequent filling can be detected quickly.
    Type: Grant
    Filed: December 9, 2005
    Date of Patent: August 9, 2011
    Assignees: Potter Electric Signal Company, LLC, Taco, Inc.
    Inventor: Jeffrey C. Merwin
  • Publication number: 20100242950
    Abstract: Solar heating systems are provided which utilize an integrated fixture for transferring heat from a solar collector to a lower-temperature loop, e.g. a domestic hot water system or radiant heating system. The fixture provides a heat exchanger for transferring heat from the solar collector to the lower temperature loop. The fixture may also include a casting, in which are formed solar collector supply and return ports, lower temperature supply and return ports, a solar collector pump volute, and a lower temperature pump volute. The systems also include two pumps, and a temperature optimization control that varies the speed of at least one of the pumps depending on the temperature of the liquid in the solar collector.
    Type: Application
    Filed: March 29, 2010
    Publication date: September 30, 2010
    Applicant: TACO, INC.
    Inventor: David Sweet
  • Patent number: 7708010
    Abstract: Solar heating systems are provided which utilize an integrated fixture for transferring heat from a solar collector to a lower-temperature loop, e.g. a domestic hot water system or radiant heating system. The fixture provides a heat exchanger for transferring heat from the solar collector to the lower temperature loop. The fixture may also include a casting, in which are formed solar collector supply and return ports, lower temperature supply and return ports, a solar collector pump volute, and a lower temperature pump volute. The systems also include two pumps, and a temperature optimization control that varies the speed of at least one of the pumps depending on the temperature of the liquid in the solar collector.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: May 4, 2010
    Assignee: Taco Inc.
    Inventor: David Sweet
  • Patent number: 7706989
    Abstract: Systems and methods for evaluating probe signal level readings in a manner that allows a low water detector to distinguish between a probe that is under a fluid level, or is above the fluid level and either being splashed or is within a foam. Low water detectors which utilize these systems and methods are also provided. The detectors generally utilize a representative probe reading, and a dynamic indicator between probe readings, for a set of probe readings taken in a time period to detect low water levels, foam, or surge.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: April 27, 2010
    Assignees: Potter Electric Signal Company, LLC, Taco, Inc.
    Inventors: Jeffrey C. Merwin, Roberto Zarate
  • Publication number: 20090021093
    Abstract: Electric motors, for example wet rotor motors, include a rotor, a winding support, and plurality of electrical windings surrounding the rotor. In some implementations, the winding support is a rotor housing, e.g., the can of a wet rotor motor. The windings define the stator of the motor.
    Type: Application
    Filed: July 17, 2007
    Publication date: January 22, 2009
    Applicant: TACO, INC.
    Inventor: Michael McNamara
  • Patent number: 7317993
    Abstract: Systems and methods for evaluating probe signal level readings in a manner that allows a low water detector to distinguish between a probe that is under a fluid level, or is above the fluid level and either being splashed or is within a foam. Low water detectors which utilize these systems and methods are also provided. The detectors generally utilize a representative probe reading, and a dynamic indicator between probe readings, for a set of probe readings taken in a time period to detect low water levels, foam, or surge.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: January 8, 2008
    Assignees: Potter Electric Signal Company, Taco, Inc.
    Inventors: Jeffrey C. Merwin, Roberto Zarate
  • Patent number: 7048200
    Abstract: An integrated injection-pumping fixture for transferring heat from a higher-temperature loop to a lower-temperature loop (e.g., in radiant heating, from a boiler loop to a radiant loop). The fixture provides an injection loop for transferring heat from the higher-temperature loop to the lower-temperature loop. The fixture comprises an integrated casting, in which are formed higher-temperature supply and return ports, lower-temperature supply and return ports, an injection pump volute, and a lower-temperature pump volute. Liquid from the higher-temperature loop enters the integrated casting through the higher-temperature supply port, mixes with liquid circulating in the lower-temperature loop, and leaves the integrated casting through the higher-temperature return port.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: May 23, 2006
    Assignee: Taco, Inc.
    Inventor: David Sweet
  • Patent number: D641529
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: July 12, 2011
    Assignee: Leaf Taco, Inc.
    Inventor: Benjamin W. Suh