Patents by Inventor Mark E. Feldman

Mark E. Feldman 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).

  • Oxygen supply system for a regenerable particulate filter assembly of a diesel engine
    Patent number: 5081836
    Abstract: Heretofore, auxiliary air was directed to a particulate filter assembly of a supercharged diesel engine for proper regeneration thereof by a relatively large auxiliary air compressor, or alternatively from a take-off duct communicating with the inlet manifold of the diesel engine. The former solution often requires a governed compressor for improved efficiency and is expensive, and the latter does not provide satisfactory regeneration throughout the full operating range of the engine.
    Type: Grant
    Filed: December 24, 1990
    Date of Patent: January 21, 1992
    Assignee: Caterpillar Inc.
    Inventors: Aaron L. Smith, Mark E. Feldman