Patents by Inventor Klaus P. R. Schwuchow

Klaus P. R. Schwuchow 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).

  • Chest for the storage of light sensitive film material or paper
    Patent number: 4650987
    Abstract: An apparatus for the prevention of the unintentional exposure of photo material includes an electromagnetically locking flap on an apparatus designed as a storage chest for photo material. The flap as a cover for said chest and a photocell or the like respond to the luminosity of the environment. In the case of the prevalence of an adequate darkness a solenoid affects the magnet so as to unlock the cover.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: March 17, 1987
    Inventor: Klaus P. R. Schwuchow