Patents by Inventor Karl-Heinz Tomaschewski

Karl-Heinz Tomaschewski 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).

  • Roadway cleaning apparatus
    Patent number: 6594855
    Abstract: An apparatus for cleaning of a roadway, in particular a starting/landing runway of an airport, comprising distributor devices (13, 14, 18) pivotally arranged on and rotated by a driving shift (6) inside a housing (1) in order to apply a high pressure fluid to a surface to be cleaned. To make it possible to achieve improved cleaning characteristics with a simple and compact construction, inside the housing (1) is deployed a fan wheel (21) driven by a driving shaft (6) of a distributor device (13, 14, 18) to produce low pressure and an air current in the housing (1) for the removal of dissolved dirt via a removal channel (33).
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: July 22, 2003
    Assignee: Heretsreid-Umwetec GmbH & Co. KG
    Inventor: Karl-Heinz Tomaschewski
  • Roadway cleaning apparatus
    Publication number: 20020023310
    Abstract: An apparatus for cleaning of a roadway, in particular a starting/landing runway of an airport, comprising distributor devices (13, 14, 18) pivotally arranged on and rotated by a driving shift (6) inside a housing (1) in order to apply a high pressure fluid to a surface to be cleaned. To make it possible to achieve improved cleaning characteristics with a simple and compact construction, inside the housing (1) is deployed a fan wheel (21) driven by a driving shaft (6) of a distributor device (13, 14, 18) to produce low pressure and an air current in the housing (1) for the removal of dissolved dirt via a removal channel (33).
    Type: Application
    Filed: August 27, 2001
    Publication date: February 28, 2002
    Inventor: Karl-Heinz Tomaschewski