Patents by Inventor Ravindra Khosla
Ravindra Khosla 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).
-
Publication number: 20230350439Abstract: A system and approach for developing a periodic water usage profile and demand for controlling a water heater. A mode may be selected for demand for a certain amount of water of a particular temperature range to be available for use from the water heater. Data on hot water usage may be collected and the usage profile and demand may be calculated from the data. The water heater may be programmed to operate in a certain fashion based on the usage profile and demand. A control knob may be on the water heater control to select a particular demand. Control of the water heater may be operated from a remote device connected in a wireless or wired fashion. An optimization program may be implemented in the control of the water heater for achieving one or more beneficial goals related to water heater performance and hot water production.Type: ApplicationFiled: November 30, 2022Publication date: November 2, 2023Inventors: Frederick Hazzard, David Heil, Ravindra Khosla
-
Patent number: 11592852Abstract: A system and approach for developing a periodic water usage profile and demand for controlling a water heater. A mode may be selected for demand for a certain amount of water of a particular temperature range to be available for use from the water heater. Data on hot water usage may be collected and the usage profile and demand may be calculated from the data. The water heater may be programmed to operate in a certain fashion based on the usage profile and demand. A control knob may be on the water heater control to select a particular demand. Control of the water heater may be operated from a remote device connected in a wireless or wired fashion. An optimization program may be implemented in the control of the water heater for achieving one or more beneficial goals related to water heater performance and hot water production.Type: GrantFiled: November 30, 2017Date of Patent: February 28, 2023Assignee: Ademco Inc.Inventors: Frederick Hazzard, David Heil, Ravindra Khosla
-
Patent number: 10989421Abstract: 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.Type: GrantFiled: November 15, 2018Date of Patent: April 27, 2021Assignee: Ademco Inc.Inventors: David Heil, Ravindra Khosla, Frederick Hazzard
-
Patent number: 10738998Abstract: 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.Type: GrantFiled: February 7, 2018Date of Patent: August 11, 2020Assignee: Ademco Inc.Inventors: David Heil, Frederick Hazzard, Ravindra Khosla
-
Patent number: 10697846Abstract: 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.Type: GrantFiled: May 4, 2018Date of Patent: June 30, 2020Assignee: Ademco Inc.Inventors: Frederick Hazzard, Gregory Young, Ravindra Khosla, Paul Knauf
-
Patent number: 10692351Abstract: 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.Type: GrantFiled: August 3, 2018Date of Patent: June 23, 2020Assignee: Ademco Inc.Inventors: Frederick Hazzard, Ravindra Khosla, David Heil
-
Patent number: 10670302Abstract: 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.Type: GrantFiled: March 25, 2014Date of Patent: June 2, 2020Assignee: Ademco Inc.Inventors: Frederick Hazzard, David Heil, Ravindra Khosla
-
Publication number: 20190339152Abstract: 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.Type: ApplicationFiled: May 4, 2018Publication date: November 7, 2019Inventors: Frederick Hazzard, Gregory Young, Ravindra Khosla, Paul Knauf
-
Patent number: 10428972Abstract: 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.Type: GrantFiled: September 27, 2017Date of Patent: October 1, 2019Assignee: Ademco Inc.Inventors: Frederick Hazzard, David Heil, Ravindra Khosla
-
Publication number: 20190093787Abstract: 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.Type: ApplicationFiled: September 27, 2017Publication date: March 28, 2019Inventors: Frederick Hazzard, David Heil, Ravindra Khosla
-
Publication number: 20190086101Abstract: 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.Type: ApplicationFiled: November 15, 2018Publication date: March 21, 2019Inventors: David Heil, Ravindra Khosla, Frederick Hazzard
-
Publication number: 20180342146Abstract: 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.Type: ApplicationFiled: August 3, 2018Publication date: November 29, 2018Inventors: Frederick Hazzard, Ravindra Khosla, David Heil
-
Patent number: 10132510Abstract: 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.Type: GrantFiled: December 9, 2015Date of Patent: November 20, 2018Assignee: Honeywell International Inc.Inventors: David Heil, Ravindra Khosla, Frederick Hazzard
-
Patent number: 10049555Abstract: 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.Type: GrantFiled: June 8, 2017Date of Patent: August 14, 2018Assignee: Honeywell International Inc.Inventors: Frederick Hazzard, Ravindra Khosla, David Heil
-
Publication number: 20180180287Abstract: 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.Type: ApplicationFiled: February 7, 2018Publication date: June 28, 2018Inventors: David Heil, Frederick Hazzard, Ravindra Khosla
-
Publication number: 20180088611Abstract: A system and approach for developing a periodic water usage profile and demand for controlling a water heater. A mode may be selected for demand for a certain amount of water of a particular temperature range to be available for use from the water heater. Data on hot water usage may be collected and the usage profile and demand may be calculated from the data. The water heater may be programmed to operate in a certain fashion based on the usage profile and demand. A control knob may be on the water heater control to select a particular demand. Control of the water heater may be operated from a remote device connected in a wireless or wired fashion. An optimization program may be implemented in the control of the water heater for achieving one or more beneficial goals related to water heater performance and hot water production.Type: ApplicationFiled: November 30, 2017Publication date: March 29, 2018Inventors: Frederick Hazzard, David Heil, Ravindra Khosla
-
Patent number: 9920930Abstract: 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.Type: GrantFiled: April 17, 2015Date of Patent: March 20, 2018Assignee: Honeywell International Inc.Inventors: David Heil, Frederick Hazzard, Ravindra Khosla
-
Patent number: D866712Type: GrantFiled: March 2, 2018Date of Patent: November 12, 2019Assignee: Ademco Inc.Inventors: Brian Moy, Ravindra Khosla, Rajat Shail
-
Patent number: D893677Type: GrantFiled: September 24, 2019Date of Patent: August 18, 2020Assignee: Ademco Inc.Inventors: Brian Moy, Ravindra Khosla, Rajat Shail
-
Patent number: D910149Type: GrantFiled: July 28, 2020Date of Patent: February 9, 2021Assignee: Ademco Inc.Inventors: Brian Moy, Ravindra Khosla, Rajat Shail