Patents by Inventor Jeffrey M. Weikert

Jeffrey M. Weikert 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: 7263823
    Abstract: A system for measuring NOx content of an exhaust gas produced includes at least one controllable valve operable to direct exhaust gas to a NOx sensor only when measurement of the NOx content is desired and to otherwise expose the NOx sensor to ambient air. A control circuit controls the operation of the at least one valve and determines the NOx content of the exhaust gas based on sensory data received from the NOx sensor.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: September 4, 2007
    Assignee: Cummins, Inc.
    Inventors: Eric B. Andrews, Jeffrey M. Weikert
  • Patent number: 5529028
    Abstract: An accessory control system for a vehicle which includes an engine, cooling fan driven by the engine and a selectively-operable, power-requiring accessory includes an electronic logic control module which is packaged within a logic control box and which is electrically connected between various sensors and various power-requiring accessories. The accessory control system further includes a first signal output line which is electrically connected between the logic control module and a power-requiring accessory, such as a combine unloader. Also connected to the logic control module is an engine temperature sensor which operates on a thermocouple principle and is connected to a relay within the logic control module. If the engine temperature is below a threshold level then the logic control module is able to disengage the cooling fan so as to make additional horsepower available for operation of the power-requiring accessory.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 25, 1996
    Assignee: Cummins Engine Company, Inc.
    Inventor: Jeffrey M. Weikert