Patents by Inventor Dean E. Ramsley

Dean E. Ramsley 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).

  • Controlled pollution control valve by-pass device for carbureted internal combustion engine
    Patent number: 4329966
    Abstract: A fuel saving device for a carbureted engine having a pollution control valve comprising a by-pass duct adapted to convey gases from the crankcase around the pollution control valve directly to the carburetor and a valve in the duct controlled by the manifold vacuum to open the valve at lower pressure in the manifold and close it at less depressed pressures.
    Type: Grant
    Filed: June 9, 1980
    Date of Patent: May 18, 1982
    Inventor: Dean E. Ramsley