Patents by Inventor Girish Kamath
Girish Kamath 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: 20240071593Abstract: Systems and methods are disclosed that provide smart alerts to users, e.g., alerts to users about diabetic states that are only provided when it makes sense to do so, e.g., when the system can predict or estimate that the user is not already cognitively aware of their current condition, e.g., particularly where the current condition is a diabetic state warranting attention. In this way, the alert or alarm is personalized and made particularly effective for that user. Such systems and methods still alert the user when action is necessary, e.g., a bolus or temporary basal rate change, or provide a response to a missed bolus or a need for correction, but do not alert when action is unnecessary, e.g., if the user is already estimated or predicted to be cognitively aware of the diabetic state warranting attention, or if corrective action was already taken.Type: ApplicationFiled: October 24, 2023Publication date: February 29, 2024Inventors: Anna Leigh DAVIS, Scott M. BELLIVEAU, Naresh C. BHAVARAJU, Leif N. BOWMAN, Rita M. CASTILLO, Alexandra Elena CONSTANTIN, Rian W. DRAEGER, Laura J. DUNN, Gary Brian GABLE, Arturo GARCIA, Thomas HALL, Hari HAMPAPURAM, Christopher Robert HANNEMANN, Anna Claire HARLEY-TROCHIMCZYK, Nathaniel David HEINTZMAN, Andrea Jean JACKSON, Lauren Hruby JEPSON, Apurv Ullas KAMATH, Katherine Yerre KOEHLER, Aditya Sagar MANDAPAKA, Samuel Jere MARSH, Gary A. MORRIS, Subrai Girish PAI, Andrew Attila PAL, Nicholas POLYTARIDIS, Philip Thomas PUPA, Eli REIHMAN, Ashley Anne RINDFLEISCH, Sofie Wells SCHUNK, Peter C. SIMPSON, Daniel S. SMITH, Stephen J. VANSLYKE, Matthew T. VOGEL, Tomas C. WALKER, Benjamin Elrod WEST, Atiim Joseph WILEY
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Publication number: 20240053009Abstract: A combustor for a gas turbine includes a dome structure including a dome-side swirler opening therethrough, and a deflector connected to the dome structure. The deflector includes a deflector-side swirler opening therethrough and a deflector-dome connecting member arranged at the deflector-side swirler opening. The deflector-dome connecting member is connected with the dome-side swirler opening via a snap-fit type connection.Type: ApplicationFiled: December 15, 2022Publication date: February 15, 2024Inventors: Ravindra Shankar Ganiger, Hiranya Nath, Deepti Bhandari, Girish Kamath Cannanore
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Patent number: 11781753Abstract: A combustor for a gas turbine includes a dome, and a deflector connected to the dome to define a baffle cavity therebetween, the deflector having a deflector cold side adjacent to the baffle cavity and a deflector hot side adjacent to a combustion chamber. At least one dome-deflector connecting member connects the dome and the deflector to each other. The dome-deflector connecting member forms a flexible joint between the dome and the deflector.Type: GrantFiled: June 29, 2022Date of Patent: October 10, 2023Assignee: GENERAL ELECTRIC COMPANYInventors: Ravindra Shankar Ganiger, Hiranya Nath, Sripathi Mohan, Girish Kamath Cannanore
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Publication number: 20230313992Abstract: A liner assembly for a combustor. The liner assembly includes a liner defining a combustion chamber of the combustor. The liner includes a looped section at a forward end of the liner. The looped section includes one or more bends such that the looped section forms a compliant joint and vibrations are dampened through the liner downstream of the looped section.Type: ApplicationFiled: July 11, 2022Publication date: October 5, 2023Inventors: Ranganatha Narasimha Chiranthan, Hiranya Nath, Girish Kamath Cannanore, Ravindra Shankar Ganiger, Pradeep Naik, Saket Singh, Deepti Bhandari, Vijayaraj Sukumar
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Publication number: 20230272912Abstract: A combustor for a gas turbine includes a dome, and a deflector connected to the dome to define a baffle cavity therebetween, the deflector having a deflector cold side adjacent to the baffle cavity and a deflector hot side adjacent to a combustion chamber. At least one dome-deflector connecting member connects the dome and the deflector to each other. The dome-deflector connecting member forms a flexible joint between the dome and the deflector.Type: ApplicationFiled: June 29, 2022Publication date: August 31, 2023Inventors: Ravindra Shankar Ganiger, Hiranya Nath, Sripathi Mohan, Girish Kamath Cannanore
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Patent number: 11420286Abstract: A liquid cooled electrode for a contact start plasma arc cutting torch is provided. The electrode includes an elongated body defining a longitudinal axis. The elongated body includes a proximal end shaped to matingly engage a torch body of the plasma arc cutting torch and a distal end located substantially opposite of the proximal end along the longitudinal axis. The electrode also includes one or more contact surfaces disposed on an external surface of the distal end of the electrode body between the proximal and distal ends. The one or more contact surfaces are shaped to physically contact a nozzle disposed within the plasma arc cutting torch during a portion of a pilot arc initiation process. The physical contact is configured to support transmission of a pilot arc current between the electrode and the nozzle with a density of at least about 3000 amps per square inch.Type: GrantFiled: November 19, 2020Date of Patent: August 23, 2022Assignee: Hypertherm, Inc.Inventors: Harshawardhan Jogdand, Girish Kamath, Oliver Murphy, Raifer Allen
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Publication number: 20210283709Abstract: A liquid coolant tube for a plasma arc cutting torch including a hollow elongated inner body shaped to translate within a hollow elongated outer body. The hollow elongated outer body of the liquid coolant tube is shaped to fixedly connect to the plasma arc cutting torch and includes a set of electrode guides. An external surface of the hollow elongated outer body and the set of electrode guides partially define a set of coolant flow channels between the set of electrode guides. The set of electrode guides are shaped to facilitate alignment of an electrode within the plasma arc cutting torch.Type: ApplicationFiled: March 16, 2021Publication date: September 16, 2021Inventors: Harshawardhan Jogdand, Oliver Murphy, Jeremy Beliveau, Stephen M. Dunbar, Girish Kamath
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Publication number: 20210153334Abstract: A liquid cooled electrode for a contact start plasma arc cutting torch is provided. The electrode includes an elongated body defining a longitudinal axis. The elongated body includes a proximal end shaped to matingly engage a torch body of the plasma arc cutting torch and a distal end located substantially opposite of the proximal end along the longitudinal axis. The electrode also includes one or more contact surfaces disposed on an external surface of the distal end of the electrode body between the proximal and distal ends. The one or more contact surfaces are shaped to physically contact a nozzle disposed within the plasma arc cutting torch during a portion of a pilot arc initiation process. The physical contact is configured to support transmission of a pilot arc current between the electrode and the nozzle with a density of at least about 3000 amps per square inch.Type: ApplicationFiled: November 19, 2020Publication date: May 20, 2021Inventors: Harshawardhan Jogdand, Girish Kamath, Oliver Murphy, Raifer Allen
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Publication number: 20210146468Abstract: A contact start liquid-cooled plasma arc cutting torch is provided that includes a translatable liquid-cooled electrode, a nozzle, and a multi-piece cathode. The electrode comprises an electrode body defining a proximal end and a distal end along a longitudinal axis of the electrode body. The electrode body includes a coolant cavity configured to receive at least a portion of a coolant tube of the torch for directing a liquid coolant flow distally through the coolant tube within the coolant cavity. The cathode is disposed about the proximal end of the electrode body and includes a first body shaped to matingly engage the electrode and a second body shaped to matingly engage the torch. The first body slidingly engages the second body such that the first body and the electrode are axially translatable relative to the second body along the longitudinal axis.Type: ApplicationFiled: November 19, 2020Publication date: May 20, 2021Inventors: Harshawardhan Jogdand, Girish Kamath, Oliver Murphy, Raifer Allen, Craig Michael Felch
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Publication number: 20080006614Abstract: A method and apparatus for controlling a gas supply to a plasma arc torch uses a proportional control solenoid valve positioned adjacent the torch to manipulate the gas flow to the torch, thereby extending electrode life during arc transfer and shutdown. Swirl ring design can be simplified and gas supply and distribution systems become less complicated. The invention also allows manipulation of shield gas flow to reduce divot formation when making interior cuts. The system can be controlled with a digital signal processor utilizing a feedback loop from a sensor.Type: ApplicationFiled: September 7, 2007Publication date: January 10, 2008Applicant: Hypertherm, Inc.Inventors: Aaron Brandt, Christopher Passage, Shane Selmer, Girish Kamath, Guy Best, Stephen Liebold, Jon Lindsay, Zheng Duan
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Publication number: 20070030612Abstract: A snubber circuit for absorbing reverse recovery current in a power supply is featured comprising a dissipative snubber circuit and a non-dissipative snubber circuit coupled in parallel to a source of reverse recovery current and a load. The dissipative snubber circuit is capable of dissipating a first amount of reverse recovery current from the reverse recovery current source and the non-dissipative snubber circuit recovering a second amount of reverse recovery current from the reverse recovery current source, resulting in the reverse recovery current being absorbed with reduced power dissipation.Type: ApplicationFiled: July 21, 2006Publication date: February 8, 2007Applicant: Hypertherm, Inc.Inventor: Girish Kamath
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Publication number: 20060163216Abstract: A method and apparatus for controlling a gas supply to a plasma arc torch uses a proportional control solenoid valve positioned adjacent the torch to manipulate the gas flow to the torch, thereby extending electrode life during arc transfer and shutdown. Swirl ring design can be simplified and gas supply and distribution systems become less complicated. The invention also allows manipulation of shield gas flow to reduce divot formation when making interior cuts. The system can be controlled with a digital signal processor utilizing a feedback loop from a sensor.Type: ApplicationFiled: January 27, 2006Publication date: July 27, 2006Applicant: Hypertherm, Inc.Inventors: Aaron Brandt, Christopher Passage, Shane Selmer, Girish Kamath, Guy Best, Stephen Liebold, Jon Lindsay, Zheng Duan
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Publication number: 20060163220Abstract: A method and apparatus for controlling a gas supply to a plasma arc torch uses a proportional control solenoid valve positioned adjacent the torch to manipulate the gas flow to the torch, thereby extending electrode life during arc transfer and shutdown. Swirl ring design can be simplified and gas supply and distribution systems become less complicated. The invention also allows manipulation of shield gas flow to reduce divot formation when making interior cuts. The system can be controlled with a digital signal processor utilizing a feedback loop from a sensor.Type: ApplicationFiled: January 27, 2005Publication date: July 27, 2006Inventors: Aaron Brandt, Christopher Passage, Shane Selmer, Girish Kamath, Guy Best
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Patent number: 5656924Abstract: A system and method for providing harmonic currents to a harmonic generating load connected to a multiphase alternating current power system includes a zig-zag transformer and a current generator. The zig-zag transformer is electrically connected to the multiphase alternating current power system. The current generator is electrically connected between a neutral of the zig-zag transformer and a neutral return path of the multiphase alternating current power system. The current generator injects a harmonic current into the neutral of the zig-zag transformer which in turn, reduces the harmonic currents provided to the load from the multiphase alternating current power system.Type: GrantFiled: September 27, 1995Date of Patent: August 12, 1997Assignee: Schott Power Systems Inc.Inventors: Ned Mohan, Girish Kamath, Vernon D. Albertson