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    Water heater leak detection system
    1.
    发明授权
    Water heater leak detection system 有权

    公开(公告)号：US10692351B2

    公开(公告)日：2020-06-23

    申请号：US16054788

    申请日：2018-08-03

    Applicant: Ademco Inc.

    Inventor： Frederick Hazzard ,  Ravindra Khosla ,  David Heil

    IPC: G08B21/20 ,  G01M3/16 ,  G08B3/10 ,  G08B25/08 ,  G01N27/22

    Abstract: The disclosure reveals a system for detecting moisture or water in a particular location. The system may incorporate a moisture detector having a control module connected to an appliance, a moisture detection circuit connected to the control module, and a voltage source connected to the moisture detection circuit and to the control module. The voltage source and the moisture detection circuit may provide voltage levels to the control module when the moisture detection circuit detects dry or wet conditions, or conditions between those conditions. A voltage level to the control module may indicate whether the appliance, such as a water heater, a washing machine, or a dish washer, has a leak. If the leak is deemed by a voltage level from the circuit to be worthy of concern, then a display, an alarm, message, or other notice mechanism may indicate an issue or what action needs to be taken.

    Water heater gas valve
    2.
    发明授权
    Water heater gas valve 有权

    公开(公告)号：US10428972B2

    公开(公告)日：2019-10-01

    申请号：US15717608

    申请日：2017-09-27

    Applicant: Ademco Inc.

    Inventor： Frederick Hazzard ,  David Heil ,  Ravindra Khosla

    IPC: F16K31/128 ,  F16K7/17 ,  F16K31/126

    Abstract: A gas valve assembly configured to operate without a pilot assembly is disclosed. In an illustrative embodiment, a servo valve actuates a diaphragm valve to selectively allow for fluid coupling of a gas inlet and gas outlet. The diaphragm valve may be a normally closed valve that opens in response to a pneumatic force resulting from the opening of the servo valve.

    Thermophile assembly with heat sink
    4.
    发明授权
    Thermophile assembly with heat sink 有权

    公开(公告)号：US10738998B2

    公开(公告)日：2020-08-11

    申请号：US15890471

    申请日：2018-02-07

    Applicant: Ademco Inc.

    Inventor： David Heil ,  Frederick Hazzard ,  Ravindra Khosla

    IPC: F23N5/10 ,  G01K1/14 ,  F23N5/02

    Abstract: A heat sink assembly draws heat away from the cold junction of a thermopile element to increase the thermopile's power output. In one example, the heat sink assembly includes a first thermally conductive securing mechanism, a second thermally conductive securing mechanism, and a thermally conductive tube having a first end and a second end. The first end of the thermally conductive tube is secured between the first securing mechanism and the second securing mechanism. In some cases, the first end of the thermally conductive tube may include a flanged region adjacent the first end with at least part of the flange region secured between the first securing mechanism and the second securing mechanism. The flange may help with heat transfer to the thermally conductive tube.

    Pilot light control for an appliance
    5.
    发明授权
    Pilot light control for an appliance 审中-公开

    公开(公告)号：US10670302B2

    公开(公告)日：2020-06-02

    申请号：US14225282

    申请日：2014-03-25

    Applicant: Ademco Inc.

    Inventor： Frederick Hazzard ,  David Heil ,  Ravindra Khosla

    IPC: F24H9/20 ,  F24H1/18 ,  F23N5/24

    Abstract: A device for igniting a pilot light for a heating appliance or for re-igniting the pilot. The device may monitor a thermopile at the pilot to determine if the pilot is lit and, if not, attempt to relight it. If the device fails to relight the pilot, it may continue attempting to relight the pilot until the stored energy is nearly depleted. Before the stored energy is depleted, the device may send a message indicating a failure to relight. The last of stored energy may alert a homeowner with an alarm that the appliance control has shut down and the pilot could not be relit. If the amount of energy stored drops below a specified threshold and the device successfully lights the pilot, it may restore the control to normal operation, and replenish the stored energy. The device may do a standing pilot or an intermittent pilot.

    CAPACITIVE LEAK AND FLAMMABLE VAPOR DETECTION SYSTEM
    6.
    发明申请
    CAPACITIVE LEAK AND FLAMMABLE VAPOR DETECTION SYSTEM 审中-公开

    公开(公告)号：US20190339152A1

    公开(公告)日：2019-11-07

    申请号：US15971478

    申请日：2018-05-04

    Applicant: Ademco Inc.

    Inventor： Frederick Hazzard ,  Gregory Young ,  Ravindra Khosla ,  Paul Knauf

    IPC: G01M3/16 ,  F24H9/20 ,  G01N27/60

    Abstract: A single capacitive sensor that may detect both water leaks and flammable vapors. The sensor may have two electrodes not touching each other but supported with an insulative material between the electrodes that allows fluids to enter between the electrodes. An electronic circuit connected to the capacitive sensor may determine the capacitance of the two electrodes. Fluids may enter between the electrodes and affect their capacitance. Permittivities of the fluids may be calculated from their effects on capacitance. Ranges of the permittivities may indicate the kind of substances and their intensity of presence. Water and flammable vapors are examples of such substances. The electronic circuit may be connected to a control module of a water heater, in that if the intensity or concentration of detected water or flammable vapors reaches a pre-set threshold, then the circuit may trigger an alarm and/or shut down the water heater.

    System and approach for water heater comfort and efficiency improvement
    7.
    发明授权
    System and approach for water heater comfort and efficiency improvement 有权

    公开(公告)号：US10989421B2

    公开(公告)日：2021-04-27

    申请号：US16192708

    申请日：2018-11-15

    Applicant: Ademco Inc.

    Inventor： David Heil ,  Ravindra Khosla ,  Frederick Hazzard

    IPC: F24D19/10 ,  G05B19/04 ,  G05D23/01 ,  G05B19/042

    Abstract: A system for heating water to improve safety and efficiency. The system may have normal operation measured in time. After a time of normal operation, a water temperature setpoint may be checked. If the setpoint is not at a certain level, normal operation may continue. If the setpoint is within the certain level, water temperature may be measured. If the water temperature is less than a desired level, one or more draws of water may be measured for a preset temperature drop. If the draws do not meet the temperature drop, a return to check the setpoint may be made. If the draws meet the temperature drop, the setpoint may be reduced and a time of normal operation may be measured to determine whether a burn cycle occurs within the time. If not, normal operation may continue; but if so, a return to check the setpoint may be made.

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