Patents by Inventor Ernst Landsberg

Ernst Landsberg 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).

  • Rescue system on high rise buildings for evacuating persons in the case of fire
    Patent number: 4350224
    Abstract: A rescue system for a multi-floor building includes an upright climb rail assembled of profiled rail sections defining two lateral cooling channels and an upright tooth rack extending around the entire length of the rail; a rescue cabin includes a projecting frame insertable into a front guiding slot in the rail and supporting a driving gear engaging the upright tooth rack; the frame of the cabin overlaps safety windows provided on each floor of the building and has an entrance opening facing the windows.
    Type: Grant
    Filed: June 4, 1980
    Date of Patent: September 21, 1982
    Assignee: Walther & Cie Aktiengesellschaft
    Inventors: Friedrich Jochum, Ernst Landsberg, Plano Zschernack
  • Sprinkler system and method of operating the same
    Patent number: 3958643
    Abstract: A sprinkler system having a pressurized sprinkler conduit which is separated from a water supply by a normally closed valve, and a fire alarm system having a circuit which is connected with this valve and opens the same in response to the detection of a fire by the circuit, is operated by detecting the absence of electrical energization of the fire alarm circuit, and thereupon operating the sprinkler system as a function of pressure losses in the sprinkler conduit rather than as a result of the operation of the fire alarm system.
    Type: Grant
    Filed: December 11, 1974
    Date of Patent: May 25, 1976
    Assignee: Walther & Cie Aktiengesellschaft
    Inventor: Ernst Landsberg