Patents by Inventor Erich Sterzel

Erich Sterzel 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).

  • Self cleaning drain gutter or pipe
    Patent number: 4634312
    Abstract: There is provided a self cleaning drainage channel, particularly a drain gutter or pipe, wherein any solid material particles deposited therein and clogging the same may be removed by a nozzle system distributed along the length of the drainage channel provided with injection nozzles oriented in the drainage direction to which a rinsing medium is supplied.
    Type: Grant
    Filed: May 4, 1984
    Date of Patent: January 6, 1987
    Inventor: Erich Sterzel