Patents by Inventor Walter A. Spiers

Walter A. Spiers 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).

  • Water air filter
    Patent number: 4448593
    Abstract: A device is disclosed which humidifies the incoming air to an internal combustion engine or an air compressor. The device employs a moistened wick which transfers water from a water reservoir to the incoming air. The humidified air reduces the carbon build-up in an engine and increases the efficiency thereof. A humidistat is provided for automatic adjustment of humidity and the heating of incoming air prior to humidification.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: May 15, 1984
    Inventor: Walter A. Spiers