Patents by Inventor John F. Below

John F. Below 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).

  • Crankcase oil-barrier system
    Patent number: 5107960
    Abstract: A compressor shielded from crankcase oil by a wall having a hole surrounded by a wiper through which a piston rod assembly passes and having the chamber between the crankcase and the underside of the piston provided with a pressure relief valve and an atmosphere vent having a check valve whereby the chamber is never at sub-atmospheric pressure and there is never gas flow through the wiper toward the piston.
    Type: Grant
    Filed: June 28, 1990
    Date of Patent: April 28, 1992
    Assignee: Rix Industries, Inc.
    Inventor: John F. Below