Patents by Inventor Wayne D. McGrath

Wayne D. McGrath 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).

  • Purification apparatus for pneumatic systems
    Patent number: 5190569
    Abstract: An air purification apparatus for pneumatic systems utilizing a water trap, a precooler, and a three-stage purification apparatus having filtration means, an air cooling chamber for moisture condensation, and a plurality of moisture traps, all in a compact, efficient package. The purification apparatus automatically purges collected moisture in response to the compressor duty cycle.
    Type: Grant
    Filed: June 13, 1991
    Date of Patent: March 2, 1993
    Inventor: Wayne D. McGrath