Patents by Inventor Erwin Brunnnhofer

Erwin Brunnnhofer 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).

  • Fuel line for fixed-length vehicle installation
    Patent number: 5038833
    Abstract: A fixed-length fuel line, for automotive vehicles to be powered by an alcohol-containing fuel such as gasohol, has a relatively thick polyamide wall which is internally lined by a polyvinyl alcohol based alcohol-barrier layer protected against the fuel by a water-barrier layer, e.g. of polyamide, the line being constructed so that swelling of the water-barrier layer does not change the length of the line because any swelling stress is taken up by the thicker polyamide wall.
    Type: Grant
    Filed: June 19, 1987
    Date of Patent: August 13, 1991
    Assignee: Technoform Caprano+Brunnhofer KG
    Inventor: Erwin Brunnnhofer