Patents by Inventor Alex R. McDowell

Alex R. McDowell 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).

  • Oil/air separator and method thereof
    Patent number: 5417184
    Abstract: An oil/air separator (10) condenses and collects oil vapors carried by blow-by gases from the crankcase of an internal combustion engine. The oil/air separator comprises an inlet vent (17), an outlet vent (56), a first filter means (32), a second filter means (34), a third filter means (44), an oil collection chamber (28), an excess oil return line (64), and a drain plug (61). The integrity of the combustion chamber in preventing air/fuel vapors and exhaust gases from passing into the crankcase can be determined by the amount of accumulated oil (62) in the collection chamber.
    Type: Grant
    Filed: September 23, 1993
    Date of Patent: May 23, 1995
    Inventor: Alex R. McDowell
  • Oil/air separator and method thereof
    Patent number: 5277154
    Abstract: An oil/air separator (10) condenses and collects oil vapors carried by blow-by gases from the crankcase of an internal combustion engine. The oil/air separator comprises an inlet vent (17), an outlet vent (56), a first filter means (32), a second filter means (34), a third filter means (44), an oil collection chamber (28), an excess oil return line (64), and a drain plug (61). The integrity of the combustion chamber in preventing air/fuel vapors and exhaust gases from passing into the crankcase can be determined by the amount of accumulated oil (62) in the collection chamber.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: January 11, 1994
    Inventor: Alex R. McDowell