Patents by Inventor Joseph George Dewitt Chambers

Joseph George Dewitt Chambers 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).

  • ENGINE EXHAUST GAS SAMPLING FOR MASS SPECTROMETER REAL TIME OIL CONSUMPTION MEASUREMENT
    Publication number: 20150204838
    Abstract: An engine oil consumption measuring system includes a multi-cylinder engine with an exhaust system positioned in a test cell. A sampling probe has an end positioned in the exhaust system to receive exhaust. A sample transfer apparatus includes a first end fluidly connected to the sampling probe and a segment positioned in an interior of a furnace. A mass spectrometer includes a specimen probe with an inlet positioned in the segment of the sample transfer apparatus. A particulate filter is positioned in the segment of the sample transfer apparatus upstream from the inlet of the specimen probe. The sample transfer apparatus and the furnace are maintained at temperatures above an oil condensation temperature during testing.
    Type: Application
    Filed: January 21, 2014
    Publication date: July 23, 2015
    Applicant: Caterpillar Inc.
    Inventors: Kulasegaram Gugaratshan, Orhan Altin, Joseph George Dewitt Chambers, Eric Nathan Lucas
  • Engine exhaust gas sampling for mass spectrometer real time oil consumption measurement
    Patent number: 9086398
    Abstract: An engine oil consumption measuring system includes a multi-cylinder engine with an exhaust system positioned in a test cell. A sampling probe has an end positioned in the exhaust system to receive exhaust. A sample transfer apparatus includes a first end fluidly connected to the sampling probe and a segment positioned in an interior of a furnace. A mass spectrometer includes a specimen probe with an inlet positioned in the segment of the sample transfer apparatus. A particulate filter is positioned in the segment of the sample transfer apparatus upstream from the inlet of the specimen probe. The sample transfer apparatus and the furnace are maintained at temperatures above an oil condensation temperature during testing.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: July 21, 2015
    Assignee: Caterpillar Inc.
    Inventors: Kulasegaram Gugaratshan, Orhan Altin, Joseph George Dewitt Chambers, Eric Nathan Lucas