Patents by Inventor Roger A. Waller

Roger A. Waller 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).

  • Dry air purge system for vapor canister
    Patent number: 5024687
    Abstract: In a vehicle with an internal combustion engine and a fuel tank and having a fuel vapor recovery system to collect fuel vapors from the fuel tank as the tank is filled with liquid fuel which includes a canister to collect vapors, an air inletting apparatus is provided to supply a flow of dry purge air to the canister during a purge of vapors therefrom. The apparatus includes a water separator device with an automatic water drain to first separate water from air, second collect the water and third drain the water from the separator.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: June 18, 1991
    Assignee: Chrysler Corporation
    Inventor: Roger A. Waller