Patents by Inventor Hellmuth Zerlauth

Hellmuth Zerlauth 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).

  • Patent number: 4228838
    Abstract: The invention relates to an anti-skid device for vehicle wheels for travelling on ice and snow with a disc-like casing connected to the wheel rim with resilient-elastic anti-skid arms, constructed in such a way that in the position of use their ends can be swung out radially into the tire tread area while adapting to the rolling shapes of the tire and can be swung in when not in use, so that a device is obtained which can effortlessly be fitted whenever required, which is inexpensive to manufacture and which permits higher speeds than are possible when travelling with snow chains or spiked tires.
    Type: Grant
    Filed: November 3, 1978
    Date of Patent: October 21, 1980
    Assignee: Niveau AG
    Inventor: Hellmuth Zerlauth