Patents by Inventor Harald Jansen

Harald Jansen 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: 4848323
    Abstract: Apparatus for examining a cavity in a body, comprising a cannula with accessories which via the cannula can be disposed to extend into such cavity. At least one accessory is arranged to receive one or more conductors. The accessory arranged to receive conductors comprises a relatively stiff mandrin disposed for movement between a plurality of substantially parallel capillaries. Each capillary contains at least adjacent its end, a tubular body of translucent material, the ends of said tubular bodies remote from the respective capillaries being connected to each other and to the end of the mandrin. The apparatus is arranged to receive at least one further accessory for introducing a light source into the cavity.
    Type: Grant
    Filed: February 9, 1988
    Date of Patent: July 18, 1989
    Assignee: Daniel Den Hoed Stichting
    Inventors: Johannes P. A. Marijnissen, Harald Jansen, Willem M. Star
  • Patent number: 4314668
    Abstract: A method of heating with an absorption heat pump in which absorber pressure is produced independently of evaporation pressure by a compressor, and/or the lean mixture returning to the absorber is cooled in a main heat exchanger to temperatures lower than is possible in the heat exchanger located between the absorber and the desorber, and the desorber is operated adiabatically. A jet apparatus may be used as a compressor unit. The cooling agent cycle may be shut off in case of inadequate evaporator pressure dependent on the outside temperature, and the mixture cycle may be used as a heat carrier. The heat exchanger may be bypassed during heat carrier operation and the heat may be delivered exclusively via the main heat exchanger. If the desorber operates on oil, gas or solid fuel, fuel gases may be cooled in a unit behind the desorber by a medium to be heated. The flue gas is used for evaporating liquid cooling agent and the vaporous cooling agent is used for driving the compressor.
    Type: Grant
    Filed: January 23, 1979
    Date of Patent: February 9, 1982
    Assignee: Stiebel Eltron GmbH & Co., KG
    Inventors: Harald Jansen, Gerhard Oelert, Hans-Jurgen Kohnke