Patents by Inventor Hans Froelich

Hans Froelich 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).

  • Admixer for delivering soluble additives
    Patent number: 4671311
    Abstract: An admixer for delivering soluble additives to flowing liquids containing a valve with a rotary valve body and a container for receiving the additive in tablet form located in the extension of the valve body. The valve body contains an outer channel guide which can be made to coincide with the valve inlet port and a tubular water guide leading through the interior of the valve body.
    Type: Grant
    Filed: July 10, 1985
    Date of Patent: June 9, 1987
    Assignee: Gardena Kress & Kastner GmbH
    Inventors: Willi Hepperle, Johann Katzer, Hans Froelich, Christian Stephany
  • Joint for a water-carrying pipe system
    Patent number: 4639018
    Abstract: A joint for a water-carrying pipe system, e.g. for a garden spray, has a joint shoulder with a disk-like part for each pipe end to be connected. The two disk parts are arranged on either side of the hose passed centrally through the joint. On either side of the joint, the hose is connected to the pipe ends in that it is passed through an opening, whose internal diameter is somewhat smaller than the external diameter of the hose. Thus, the hose engages flat on the openings of the pipe ends, so that this in itself leads to a liquid-tight seal.
    Type: Grant
    Filed: July 10, 1985
    Date of Patent: January 27, 1987
    Assignee: Gardena Kress & Kastner GmbH
    Inventors: Hans Froelich, Willi Hepperle, Johann Katzer, Christian Stephany