Patents by Inventor James C. Durand

James C. Durand 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).

  • Patent number: 7522994
    Abstract: An exhaust control system for a power source is disclosed. The exhaust control system includes a navigation tool and a processor. The navigation tool is configured to detect a geographical location of a power source. The processor is configured to compare the geographical location of the power source with fuel-location data stored in a database. The exhaust control system is configured to modify, activate, or deactivate at least one engine control system, or activate or deactivate at least one power source warning system, based on a result of comparing the geographical location of the power source with the fuel-location data.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: April 21, 2009
    Assignee: Caterpillar Inc.
    Inventor: James C. Durand
  • Patent number: 7441453
    Abstract: A system for a virtual frost sensor is disclosed including a method for operating the virtual frost sensor. The method includes determining a first temperature indicative of a fluid upstream of the component and determining a second temperature indicative of a fluid downstream of the component. The method also includes sensing at least one engine parameter and determining a first parameter as a function of the at least one engine parameter. The method further includes determining a third temperature indicative of a temperature associated with the engine component as a function of the first temperature, the second temperature, and the first parameter.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: October 28, 2008
    Assignee: Caterpillar Inc.
    Inventor: James C. Durand
  • Patent number: 7349792
    Abstract: A system for a virtual liquid sensor is disclosed including a method for operating the liquid sensor. The method includes determining a rate of generating condensation with respect to the component. The method also includes determining a rate of purging condensation with respect to the component. The method further includes determining an amount of accumulated condensation with respect to the component as a function of the rate of generating condensation and the rate of purging condensation over a given period of time.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: March 25, 2008
    Assignee: Caterpillar Inc.
    Inventor: James C. Durand
  • Patent number: 7292929
    Abstract: A system for a virtual dew point sensor is disclosed including a method for operating the virtual dew point sensor. The method includes determining a first humidity ratio indicative of the humidity associated with an ambient air as a function of at least a relative humidity associated with the ambient air. The method also includes determining a second humidity ratio indicative of the humidity associated with an exhaust gas as a function of at least one engine parameter. The method also includes determining a third humidity ratio indicative of combustion air directed toward an inlet manifold of an engine as a function of the first and second humidity ratios. The method further includes determining at least one dew point indicative of the combustion air as a function of the third humidity ratio and a pressure indicative of the combustion air.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: November 6, 2007
    Assignee: Caterpillar Inc.
    Inventor: James C. Durand
  • Patent number: 7260468
    Abstract: In accordance with an embodiment of the present invention, a method of controlling an internal combustion engine system having an internal combustion engine is disclosed. The internal combustion engine includes an engine block defining a plurality of combustion chambers, an intake air system in fluid communication with the combustion chambers and providing intake air thereto, an exhaust gas system in fluid communication with the combustion chambers and carrying exhaust gas therefrom, a cooling system having a cooling fluid circulated therein and a recirculated gas system in fluid communication with the exhaust gas system and intake air system wherein a portion of the exhaust gas is routed from the exhaust gas system to the intake air system.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: August 21, 2007
    Assignee: Caterpillar Inc
    Inventors: James C Durand, Neil A Terry, Gregory W. Tomlins
  • Patent number: 4858880
    Abstract: Resilient mounting apparatuses are useful for isolating the engine generated vibrations and noise from the frame. The mushroom style resilient mounting apparatuses are generally over designed and add to the cost without any additional benefits. The subject resilient mounting apparatus includes a rebound pad designed to provide high fatigue capacity yet low initial stiffness in a small space and to permit the use of simple manufacturing processes to make it. The primary support includes a skirt which cooperates with the rebound pad to keep foreign material from migrating into an annular space. Thus the subject resilient mounting apparatus meets the functional requirements while avoiding the manufacturing complexity or the extra cost of unneeded material.
    Type: Grant
    Filed: May 29, 1987
    Date of Patent: August 22, 1989
    Assignee: Caterpillar Inc.
    Inventor: James C. Durand
  • Patent number: 4058014
    Abstract: To detect and record the highest operating temperature range which occurs in an engine, transmission, implement hydraulic system or the like during an extended period of time, an indicator device is adapted to be mounted in thermal contact with a liquid coolant flow, lubricant flow or the like of the apparatus. The device has a housing containing a plurality of electrical resistor segments connected in series between an external electrode and the housing. A plurality of temperature-sensitive switches are arranged to short out successive ones of the resistor segments upon the occurrence of successively higher predetermined temperatures.
    Type: Grant
    Filed: July 16, 1976
    Date of Patent: November 15, 1977
    Assignee: Caterpillar Tractor Co.
    Inventor: James C. Durand
  • Patent number: 4034698
    Abstract: A compact shock-resistant device may be mounted on a vehicle engine or the like, in thermal contact with engine coolant flow for example, to record an indication of the maximum operating temperature reached during an extended period of use. A tubular housing has threads or the like for mounting in a fluid-retaining wall of the engine with one end being within the fluid and with the other end being accessible at the exterior of the wall. An indicator rod is disposed for axial movement in the housing with one end being visible from outside when a protective cap is removed. Thermally expansible means such as a wax cartridge within the housing exerts a force against the other end of the rod to cause outward movement of the rod when the ambient temperature exceeds the highest temperature previously reached. Spring ratchet means or the like blocks return movement of the rod in the opposite direction.
    Type: Grant
    Filed: July 16, 1976
    Date of Patent: July 12, 1977
    Assignee: Caterpillar Tractor Co.
    Inventor: James C. Durand