Patents by Inventor M. Reza Ghassemzadeh

M. Reza Ghassemzadeh 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).

  • System for controlling the duration of a self-clean cycle in an oven
    Patent number: 6784404
    Abstract: A method and apparatus is provided for operating a self-cleaning oven in which a gas sensor, such as for measuring concentrations of CO gas, is located remote from, yet in gas communication with, an exhaust flue of the oven. The gas sensor is located at the end of an outlet tube which extends from the exhaust flue. A sample gas flow is provided to the gas sensor through the outlet tube to isolate the sensor from the heat of the oven and a filter device is located in the outlet tube for filtering the sample gas flow. A valve may be provided at the inlet to the outlet tube. The rate of change (slope) of successive readings of gas concentrations may be used to determine when the combustion of food material is complete, in order to terminate a self-cleaning cycle.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: August 31, 2004
    Assignee: Whirlpool Corporation
    Inventors: Robert William Meyer, Paul Karl Krueger, Erin M. May, Richard L. Baker, Steven T. Baas, Anthony T. Jenkins, M. Reza Ghassemzadeh, Matthew T. Wizeman
  • System for controlling the duration of a self-clean cycle in an oven
    Publication number: 20020005401
    Abstract: A method and apparatus is provided for operating a self-cleaning oven in which a gas sensor, such as for measuring concentrations of CO gas, is located remote from, yet in gas communication with, an exhaust flue of the oven. The gas sensor is located at the end of an outlet tube which extends from the exhaust flue. A sample gas flow is provided to the gas sensor through the outlet tube to isolate the sensor from the heat of the oven and a filter device is located in the outlet tube for filtering the sample gas flow. A valve may be provided at the inlet to the outlet tube. The rate of change (slope) of successive readings of gas concentrations may be used to determine when the combustion of food material is complete, in order to terminate a self-cleaning cycle.
    Type: Application
    Filed: July 9, 2001
    Publication date: January 17, 2002
    Inventors: Robert William Meyer, Paul Karl Krueger, Erin M. May, Richard L. Baker, Steven T. Baas, Anthony E. Jenkins, M. Reza Ghassemzadeh, Matthew T. Wizeman
  • Pulse combustion engine and heat transfer system
    Patent number: 4730990
    Abstract: A pulse combustion powered apparatus is disclosed for temperature conditioning and pressurizing fluids. The alternating periods of positive and negative pressure of the combustion gases of a pulse combustion burner drive a reciprocating compressor and the rejected engine heat is recovered by heat exchange with a primary fluid. The compressor may be included in a reversible refrigeration circuit to provide heating and cooling of secondary fluids.
    Type: Grant
    Filed: April 10, 1987
    Date of Patent: March 15, 1988
    Assignee: American Gas Association
    Inventors: Richard J. Priem, M. Reza Ghassemzadeh, James C. Griffiths
  • Pulse combustion engine and heat transfer system
    Patent number: 4685510
    Abstract: A pulse combustion powered apparatus is disclosed for temperature conditioning and pressurizing fluids. The alternating periods of positive and negative pressure of the combustion gases of a pulse combustion burner drive a reciprocating compressor and the rejected engine heat is recovered by heat exchange with a primary fluid. The compressor may be included in a reversible refrigeration circuit to provide heating and cooling of secondary fluids.
    Type: Grant
    Filed: April 24, 1986
    Date of Patent: August 11, 1987
    Assignee: American Gas Association
    Inventors: Richard J. Priem, M. Reza Ghassemzadeh, James C. Griffiths