Patents by Inventor David Deng

David Deng 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).

  • DUAL FUEL HEATING SYSTEM AND AIR SHUTTER
    Publication number: 20140299123
    Abstract: A dual fuel heating system can be used in a gas appliance. The system can have an air shutter to regulate an amount of air that can mix with the fuel for combustion. The air shutter can be configured to have different positions depending on the type of fuel to be used.
    Type: Application
    Filed: June 20, 2014
    Publication date: October 9, 2014
    Inventor: David Deng
  • Dual fuel heating system with pressure sensitive nozzle
    Patent number: 8851065
    Abstract: A heating system can include certain pressure sensitive features. These features can be configured to change from a first position to a second position based on a pressure of a fuel flowing into the feature. These features can include, fuel selector valves, pressure regulators, burner nozzles, and oxygen depletion sensor nozzles, among other features.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: October 7, 2014
    Inventor: David Deng
  • HEATING ASSEMBLY
    Publication number: 20140248571
    Abstract: A heating assembly can be used with one of a first fuel type or a second fuel type different than the first. The heating assembly can include housing have a first actuation member and a second actuation member. The first and second actuation members can be positioned within respective first and second fuel hook-ups. The first and second actuation members can be configured such that connecting a fuel source to the heater assembly moves one of the actuation members from a first position to a second position to control flow through the heating assembly.
    Type: Application
    Filed: February 14, 2014
    Publication date: September 4, 2014
    Inventor: David Deng
  • SAFETY PRESSURE SWITCH
    Publication number: 20140248568
    Abstract: A safety pressure switch can be used with a gas appliance. The gas appliance can be a single fuel or a dual fuel appliance for use with one of a first fuel type or a second fuel type different than the first. The safety pressure switch can be fluidly connected to a fuel input and electrically coupled to a pilot assembly.
    Type: Application
    Filed: February 14, 2014
    Publication date: September 4, 2014
    Inventor: David Deng
  • HEATING ASSEMBLY
    Publication number: 20140248569
    Abstract: A heating assembly can include a gas hook-up and a pressure switch. The pressure switch can be in fluid communication with the gas hook-up and be movable at a predetermined threshold pressure from a first position to a second position. The pressure switch can be further configured such that if a fuel is connected to the gas hook-up that has a delivery pressure either above the predetermined threshold pressure in one situation or below the predetermined threshold pressure in another, the fuel will act on the pressure switch to move it from the first position to the second position.
    Type: Application
    Filed: February 27, 2014
    Publication date: September 4, 2014
    Inventor: David Deng
  • HEATING ASSEMBLY
    Publication number: 20140246010
    Abstract: A heating assembly can be used in a dual fuel heater to mix air with fuel to be combusted at the burner. The heating assembly can include a burner, a first nozzle, a second nozzle, a first conduit and a second conduit. The first conduit can have an opening configured to allow air to mix with fuel injected into the first conduit by the first nozzle.
    Type: Application
    Filed: February 14, 2014
    Publication date: September 4, 2014
    Inventor: David Deng
  • SAFETY PILOT
    Publication number: 20140248567
    Abstract: A safety pilot can be used with a gas appliance. The gas appliance can be a single fuel or a dual fuel appliance for use with one of a first fuel type or a second fuel type different than the first. The safety pilot can include a first thermocouple, a second thermocouple, and a nozzle configured to direct combusting fuel towards both the first and second thermocouples.
    Type: Application
    Filed: February 14, 2014
    Publication date: September 4, 2014
    Inventor: David Deng
  • Valve assemblies for heating devices
    Patent number: 8764436
    Abstract: In certain embodiments, a valve assembly can comprise a housing, a valve body, a first burner nozzle member and a second burner nozzle member. The housing can define an oxygen depletion sensor (ODS) inlet and a burner inlet. The valve body can be positioned within the housing and configured to rotate between a first position for a first fuel type and a second position for a second fuel type different from the first.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: July 1, 2014
    Assignee: Procom Heating, Inc.
    Inventor: David Deng
  • Dual fuel heating source
    Patent number: 8757202
    Abstract: A dual fuel heating source can have a dual entry valve unit with a main body at least partially defining a certain flow paths or channels therethrough. The dual entry valve can have first and second inlets and first and second outlets. The dual fuel heating source may also include a pressure regulator, an exit valve, a control valve and/or a manifold connected to the dual entry valve unit.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: June 24, 2014
    Inventor: David Deng
  • Dual fuel heating system and air shutter
    Patent number: 8757139
    Abstract: A dual fuel heating system can be used in a gas appliance. The system can have an air shutter to regulate an amount of air that can mix with the fuel for combustion. The air shutter can be configured to have different positions depending on the type of fuel to be used.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: June 24, 2014
    Inventor: David Deng
  • Heating system
    Patent number: 8752541
    Abstract: A heating system can include certain pressure sensitive features. These features can be configured to change from a first position to a second position based on a pressure of a fuel flowing into the feature. These features can include, fuel selector valves, pressure regulators, burner nozzles, and oxygen depletion sensor nozzles, among other features.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: June 17, 2014
    Inventor: David Deng
  • HEATER CONFIGURED TO OPERATE WITH A FIRST OR SECOND FUEL
    Publication number: 20140150767
    Abstract: A heater can be configured to operate with either a first fuel at a first pressure or a second fuel at a second pressure. In some embodiments, a pressure regulator unit is configured to regulate the pressure of either the first fuel or the second fuel and to direct either the first fuel or the second fuel towards a combustion chamber. A nozzle assembly can be configured to inject the fuel into the combustion chamber.
    Type: Application
    Filed: October 25, 2013
    Publication date: June 5, 2014
    Applicant: Procom Heating, Inc.
    Inventor: David Deng
  • DUAL FUEL VALVE WITH AIR SHUTTER ADJUSTMENT
    Publication number: 20140072919
    Abstract: A heater assembly can be used with a gas appliance. The gas appliance can be a dual fuel appliance for use with one of a first fuel type or a second fuel type different than the first. The heater assembly can include a fuel regulator valve including a main pressure regulator to maintain the fuel pressure, a first fuel source connection for connecting the first fuel type to the heater assembly, a second fuel source connection for connecting the second fuel type to the heater assembly, and an air shutter system. The air shutter system introduces air into the fuel discharged at the main burner nozzle before it is supplied to the main burner. The air shutter system can open the air shutter to two or more different positions to vary the amount of air introduced based on the type of fuel supplied.
    Type: Application
    Filed: March 8, 2013
    Publication date: March 13, 2014
    Applicant: CONTINENTAL APPLIANCES, INC. D.BA PROCOM
    Inventor: David Deng
  • DUAL FUEL HEATER WITH SELECTOR VALVE
    Publication number: 20140057218
    Abstract: A heater assembly can be used with a gas appliance. The gas appliance can be a dual fuel appliance for use with one of a first fuel type or a second fuel type different than the first. The heater assembly can include at least one pressure regulator, a housing, and an actuation member. The housing has a first fuel hook-up for connecting the first fuel type to the heater assembly, and a second fuel hook-up for connecting the second fuel type to the heater assembly. The actuation member can control a flow through the heater assembly based on whether the first or the second fuel hook-up is used.
    Type: Application
    Filed: March 8, 2013
    Publication date: February 27, 2014
    Applicant: CONTINENTAL APPLIANCES, INC. D.B.A. PROCOM
    Inventor: David Deng
  • VALVE ASSEMBLIES FOR HEATING DEVICES
    Publication number: 20140030665
    Abstract: In certain embodiments, a valve assembly can comprise a housing, a valve body and a nozzle. The housing can define a first inlet and a second inlet. The valve body can be positioned within the housing and configured to rotate between a first position for a first fuel type and a second position for a second fuel type different from the first. A control knob is operatively coupled to the valve body and to an air shutter such that rotation of the control knob controls the state of the valve body and the position of the air shutter.
    Type: Application
    Filed: October 4, 2013
    Publication date: January 30, 2014
    Applicant: PROCOM HEATING, INC.
    Inventor: David Deng
  • System and methods for determination of analyte concentration using time resolved amperometry
    Patent number: 8574424
    Abstract: A method for determining a concentration of an analyte is disclosed. The method includes applying a potential excitation to a fluid sample containing an analyte and determining if a current decay curve associated with the fluid sample has entered an analyte depletion stage. The method also includes measuring a plurality of current values associated with the fluid sample during the analyte depletion stage and calculating an analyte concentration based on at least one of the plurality of current values.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: November 5, 2013
    Assignee: Nipro Diagnostics, Inc.
    Inventor: David Deng
  • Heater configured to operate with a first or second fuel
    Patent number: 8568136
    Abstract: A heater can be configured to operate with either a first fuel at a first pressure or a second fuel at a second pressure. In some embodiments, a pressure regulator unit is configured to regulate the pressure of either the first fuel or the second fuel and to direct either the first fuel or the second fuel towards a combustion chamber. A nozzle assembly can be configured to inject the fuel into the combustion chamber.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: October 29, 2013
    Assignee: Procom Heating, Inc.
    Inventor: David Deng
  • Valve assemblies for heating devices
    Patent number: 8545216
    Abstract: In certain embodiments, a valve assembly includes a housing. The housing can define a first fuel intake, a first fuel output, and a second fuel output. The assembly can include a valve member configured to direct fuel from the first fuel intake to either the first fuel output or the second fuel output. The assembly can further include a nozzle having a first portion and a second portion. The first portion of the nozzle can be in communication with the first fuel output, and the second portion of the nozzle can be in communication with the second fuel output. The assembly can include a compartment in communication with the nozzle, and can include one or more air intakes.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: October 1, 2013
    Assignee: Continental Appliances, Inc.
    Inventor: David Deng
  • Dual fuel heater
    Patent number: 8516878
    Abstract: In certain embodiments, an apparatus includes an oxygen depletion sensor (ODS) includes a thermocouple, a first nozzle configured to direct heat from combustion of a first gas, liquid, or combination thereof to the thermocouple, a second nozzle configured to direct heat from combustion of a second gas, liquid, or combination thereof to the thermocouple, and a first igniter.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: August 27, 2013
    Assignee: Continental Appliances, Inc.
    Inventor: David Deng
  • Dual fuel heating source
    Patent number: 8517718
    Abstract: A dual fuel heating source can have a fuel selector valve for selecting between a first fuel and a second fuel different from the first. The dual fuel heating source may selectively have a regulator unit, and an outlet valve. The regulator unit can be configured to regulate the pressure of two different fuels. The outlet valve can be connected to the fuel selector valve such that selecting a fuel can determine the path fuel will flow through the outlet valve and also out of the heating source.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: August 27, 2013
    Inventor: David Deng