Patents by Inventor Ed Steinbrueck

Ed Steinbrueck 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).

  • Diesel engine gas filter with electrical heater
    Patent number: 5101095
    Abstract: A filter apparatus for reducing particulates from exhaust gases from a diesel engine having a housing containing a ceramic filter unit with an array of spirally mounted resistance rods electrically connected in parallel. A ceramic foam element is located behind the array, and is used to reflect heat back to the ceramic filter. A 12 or 24 volt battery is used as the power source.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: March 31, 1992
    Assignee: Donaldson Company, Inc.
    Inventors: Wayne M. Wagner, Eugene D. Wilson, Douglas E. Flemming, Ed Steinbrueck
  • Electrical resistance heater
    Patent number: 5053603
    Abstract: A flat array of a plurality of spiral wound resistance rods backed by a ceramic foam disc for use with filter apparatus for reducing particulates from exhaust gases of an engine. The array of resistance rods is electrically connected in parallel and can be energized by a 12 or 24 volt vehicle battery.
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: October 1, 1991
    Assignee: Donaldson Company, Inc.
    Inventors: Wayne M. Wagner, Eugene D. Wilson, Douglas E. Flemming, Ed Steinbrueck