Patents by Inventor Wilfried Kroh

Wilfried Kroh 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).

  • Tire inflating device, particularly for inflating a bicycle tire
    Patent number: 4773454
    Abstract: The tire filling unit, particularly for filling a bicycle tire, comprises a filling head with an outlet connectable to a filling valve of a tire and with an inlet containing a hollow prong for a high pressure gas cartridge and a concentric cartridge jacket attachable with the filling head at the inlet for receiving the high pressure cartridge. A connecting duct contains an automatically closing valve between the inlet and the outlet which locks the connecting duct in a closed configuration and which is movable into an open configuration by an operating device mounted in the filling head.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: September 27, 1988
    Assignee: Wilfried Kroh
    Inventors: Wilfried Kroh, Reinhard Kurz