Patents Assigned to Field Diagnostic Services, Inc.
  • Method for determining evaporator airflow verification
    Patent number: 8024938
    Abstract: A method of providing a field test protocol for determining evaporator airflow verification for existing vapor compression cycle equipment.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: September 27, 2011
    Assignee: Field Diagnostic Services, Inc.
    Inventors: Todd M. Rossi, Keith A. Temple, Changlin Sun
  • Apparatus and method for detecting faults and providing diagnostics in vapor compression cycle equipment
    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
  • Estimating evaporator airflow in vapor compression cycle cooling equipment
    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
  • Estimating operating parameters of vapor compression cycle equipment
    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
  • Apparatus and method for detecting faults and providing diagnostics in vapor compression cycle equipment
    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