Patents by Inventor Joseph C. Tokar

Joseph C. Tokar 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).

  • Air cleaner system for over-highway trucks
    Patent number: 4157902
    Abstract: An improved air cleaner designed for insertion in the air intake conduits of over-the-road vehicles, to have the same diameter as the conduits, and to be readily replaceable as a unit. The invention particularly includes an air-permeable member which tapers, in combination with streamliners for improving the flow of air through the device.
    Type: Grant
    Filed: December 7, 1977
    Date of Patent: June 12, 1979
    Assignee: Donaldson Company, Inc.
    Inventor: Joseph C. Tokar