Patents by Inventor Jonathan D. Douglas

Jonathan D. Douglas 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: 20100125369
    Abstract: A system and a method are provided for monitoring a condition and selectively executing a certification defrost algorithm for a heating, ventilation, and air conditioning (HVAC) system in response to the status of the monitored condition. A system and a method are provided for selectively operating a certification defrost algorithm in parallel to a field defrost algorithm. A system and a method are also provided for causing a controller to execute a first algorithm and for causing the controller to selectively execute a second algorithm while also executing the first algorithm where each of the first algorithm and the second algorithm are configured to selectively cause the HVAC system to operate in a defrost mode.
    Type: Application
    Filed: November 17, 2008
    Publication date: May 20, 2010
    Applicant: TRANE INTERNATIONAL, INC.
    Inventors: Jonathan D. DOUGLAS, Darryl E. DENTON, Alan D. MARBLE, Kevin B. MERCER, Gary L. SAPP, Kristen L. SCHAEFER, Steven A. TICE
  • Publication number: 20100080713
    Abstract: A system and method is provided for monitoring a system pressure to infer whether a high pressure cut out (HPCO) switch has opened disabling a heating, ventilating, and air conditioning (HVAC) compressor. A system and method are also provided for determining whether to disable the heating, ventilating, and air conditioning (HVAC) compressor based on a status of a low pressure cut out (LPCO) switch, an ambient temperature, and system mode state. The systems and methods may be used interchangeably with the appropriate adjustments to decision limits, such as where the LPCO may be monitored to infer status and the HPCO status may be directly used with temperature and system mode state.
    Type: Application
    Filed: September 26, 2008
    Publication date: April 1, 2010
    Applicant: TRANE INTERNATIONAL, INC.
    Inventors: Jonathan D. Douglas, John R. Edens, Alan D. Marble, Kevin B. Mercer, Gary L. Sapp, Brett R. Schneider, Steven A. Tice
  • Publication number: 20100080712
    Abstract: A system and method is provided for monitoring a system pressure to infer whether a high pressure cut out (HPCO) switch has opened disabling a heating, ventilating, and air conditioning (HVAC) compressor. A system and method are also provided for determining whether to disable the HVAC compressor based on a status of a low pressure cut out (LPCO) switch, an ambient temperature, and system mode state. The systems and methods may be used interchangeably with the appropriate adjustments to decision limits, such as where the LPCO may be monitored to infer status and the HPCO status may be directly used with temperature and system mode state.
    Type: Application
    Filed: September 26, 2008
    Publication date: April 1, 2010
    Applicant: Trane International, Inc.
    Inventors: Jonathan D. Douglas, John R. Edens, Carl L. Garrett, Alan D. Marble, Kevin B. Mercer, Gary L. Sapp, Kristin L. Schaefer, Brett R. Schneider, Steven A. Tice
  • Patent number: 7079967
    Abstract: An apparatus and method for detecting faults and providing diagnostic information in a refrigeration system comprising a microprocessor, a means for inputting information to the microprocessor, a means for outputting information from the microprocessor, and five sensors.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: July 18, 2006
    Assignee: Field Diagnostic Services, Inc.
    Inventors: Todd M. Rossi, Dale Rossi, Jonathan D. Douglas, Timothy P. Stockman
  • Patent number: 7046663
    Abstract: In a pipeline network processor, a packet intercept feature determines whether a packet is to be intercepted based on the inbound and outbound port through which the packet travels and based on the source and destination of the packet. When a packet enters the pipeline network processor, a determination is made as to whether the inbound and outbound ports are enabled for packet intercept. If so, a source and/or destination media access control address is compared to a list of configured intercept addresses. If a match is found, a copy of the packet is diverted to an intercept receiver and the original packet is forwarded to its intended destination.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: May 16, 2006
    Assignee: Cisco Technology, Inc.
    Inventors: Leo Temoshenko, Hugh Nhan, Charles M. Parker, Robert L. King, Jonathan D. Douglas, Nathan A. Mitchell, George R. Everhart, Douglas W. Currie
  • Patent number: 6973793
    Abstract: A method for determining airflow through an evaporator coil in a vapor compression cycle by measuring the moist air conditions entering and leaving the coil, and various temperatures and pressures in the refrigerant of the vapor compression cycle. The mass airflow rate and the volumetric airflow rate are then determined.
    Type: Grant
    Filed: July 7, 2003
    Date of Patent: December 13, 2005
    Assignee: Field Diagnostic Services, Inc.
    Inventors: Jonathan D. Douglas, Marcus V. A. Bianchi, Todd M. Rossi
  • Publication number: 20040144106
    Abstract: A method for determining airflow through an evaporator coil in a vapor compression cycle by measuring the moist air conditions entering and leaving the coil, and various temperatures and pressures in the refrigerant of the vapor compression cycle. The mass airflow rate and the volumetric airflow rate are then determined.
    Type: Application
    Filed: July 7, 2003
    Publication date: July 29, 2004
    Inventors: Jonathan D. Douglas, Marcus V. A. Bianchi, Todd M. Rossi
  • Publication number: 20040111239
    Abstract: An apparatus and method for detecting faults and providing diagnostic information in a refrigeration system comprising a microprocessor, a means for inputting information to the microprocessor, a means for outputting information from the microprocessor, and five sensors. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that this abstract will not be used to interpret or limit the scope or meaning of the claims.
    Type: Application
    Filed: December 2, 2003
    Publication date: June 10, 2004
    Inventors: Todd M. Rossi, Dale Rossi, Jonathan D. Douglas, Timothy P. Stockman
  • Publication number: 20040111186
    Abstract: An apparatus and method for detecting faults and providing diagnostic information in a refrigeration system comprising a microprocessor, a means for inputting information to the microprocessor, a means for outputting information from the microprocessor, and five sensors. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that this abstract will not be used to interpret or limit the scope or meaning of the claims.
    Type: Application
    Filed: December 4, 2002
    Publication date: June 10, 2004
    Inventors: Todd M. Rossi, Dale Rossi, Jonathan D. Douglas, Timothy P. Stockman
  • Patent number: 6701725
    Abstract: A process for estimating the capacity and the coefficient of performance by taking common measurements and using compressor manufacturer's performance data is presented. A process for determining a capacity index and an efficiency index for a vapor compression cycle relative to desired operating conditions.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: March 9, 2004
    Assignee: Field Diagnostic Services, Inc.
    Inventors: Todd M. Rossi, Jonathan D. Douglas, Marcus V. A. Bianchi
  • Patent number: 6658373
    Abstract: An apparatus and method for detecting faults and providing diagnostic information in a refrigeration system comprising a microprocessor, a means for inputting information to the microprocessor, a means for outputting information from the microprocessor, and five sensors.
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: December 2, 2003
    Assignee: Field Diagnostic Services, Inc.
    Inventors: Todd M. Rossi, Dale Rossi, Jonathan D. Douglas, Timothy P. Stockman
  • Publication number: 20030055603
    Abstract: An apparatus and method for detecting faults and providing diagnostic information in a refrigeration system comprising a microprocessor, a means for inputting information to the microprocessor, a means for outputting information from the microprocessor, and five sensors. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that this abstract will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
    Type: Application
    Filed: August 24, 2001
    Publication date: March 20, 2003
    Inventors: Todd M. Rossi, Dale Rossi, Jonathan D. Douglas, Timothy P. Stockman
  • Publication number: 20030019221
    Abstract: A process for estimating the capacity and the coefficient of performance by taking common measurements and using compressor manufacturer's performance data is presented. A process for determining a capacity index and an efficiency index for a vapor compression cycle relative to desired operating conditions.
    Type: Application
    Filed: May 10, 2002
    Publication date: January 30, 2003
    Inventors: Todd M. Rossi, Jonathan D. Douglas, Marcus V. A. Bianchi
  • Patent number: 6079481
    Abstract: The present invention is directed to a thermal storage system and auxiliary air conditioning systems employing the same, said system employs a heat exchange assembly made from profile board or corrugated board which provides a cost efficient and light weight device for storing an energy storing medium and then using the same at desirable times to provide cooling.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: June 27, 2000
    Assignee: AIL Research, Inc
    Inventors: Andrew Lowenstein, Marc J. Sibilia, Jonathan D. Douglas, Thomas S. Tonon