Patents by Inventor Rudolf Laeng

Rudolf Laeng 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: 4289316
    Abstract: A dusting or cleaning apparatus is mounted on the cover for the apparatus and serves to clean phonograph records on the turntable by means of a brush which is mounted on guide arms and engages the record during rotation of the turntable. The apparatus, while in engagement with the record, is guided from the outer portion of the record, radially inwardly as the phonograph record turns. This is accomplished by means of the brush which is mounted for slideable movements on the guide arms and is moved radially on the phonograph record while it is turned on the turntable.
    Type: Grant
    Filed: April 16, 1979
    Date of Patent: September 15, 1981
    Inventor: Rudolf Laeng
  • Patent number: 4167774
    Abstract: A record player hood made of a plastic material which encloses a lamp and a tilt actuated switch therefor, wherein the lamp is clamped to the hood.
    Type: Grant
    Filed: September 16, 1977
    Date of Patent: September 11, 1979
    Inventors: Paul Knuchel, Benedikt Strausak, Rudolf Laeng, Josef Vavrina
  • Patent number: 4106082
    Abstract: A covering hood for a record player or the like having a stroboscopic lamp mounted on the inside thereof and including a tilt actuated switch for activating the lamp upon raising the hood. The connecting lead for the lamp is disposed within an elongated cable channel secured to or integral with the hood. If desired, the lamp may be supported by means of a gooseneck having a suction cup on one end adapted to grip the surface of the hood.
    Type: Grant
    Filed: August 18, 1976
    Date of Patent: August 8, 1978
    Inventors: Rudolf Laeng, Benedikt A. Strausak, Josef Vavrina