Patents Assigned to A/S Kongsberg Vapenfabrik
  • Arrangement for endwise clamping a first gas turbine rotor member to another member of a gas turbine rotor
    Patent number: 4039268
    Abstract: An improved resilient member is provided in a clamping connection between two members of a gas turbine rotor, said resilient member taking the form of a rim or outer ring provided with an annular row of inwardly protruding fingers. The resiliency is due partly to deflection of the fingers and partly to a twisting of the outer ring with the fingers.
    Type: Grant
    Filed: February 18, 1976
    Date of Patent: August 2, 1977
    Assignee: A/S Kongsberg Vapenfabrik
    Inventor: John Lee Cotton
  • Grease level indicator
    Patent number: 4026239
    Abstract: A threaded plug in a grease filling opening on the periphery of a rotating sleeve is formed with a tube-shaped extension having lateral openings near its base, whereby the plug may be used as a grease level indicator.
    Type: Grant
    Filed: December 3, 1975
    Date of Patent: May 31, 1977
    Assignee: A/S Kongsberg Vapenfabrik
    Inventor: Tore A. Andvig
  • Procedure and apparatus for determining the geometrical shape of a surface
    Patent number: 3976382
    Abstract: A procedure and an apparatus for obtaining information regarding the geometry of surfaces, for example on work pieces in mechanical industry.The procedure is based on casting a shadow on the surface by partially shielding incident light or other types of radiation. The edge of the shadow thus cast on the work piece, if viewed from a direction substantially different from that defined by the radiation source and the edge of the shield,will provide a profile of shield, will surface. Moving the shadow across the work piece will provide a continuous series of such profiles, if the edge of the shadow may be seen at all times.The apparatus may include photo-electric converters, like a TV camera, for registering the shape of the shadow by means of a display screen, and for providing signals which may be processed by a computer.
    Type: Grant
    Filed: November 12, 1973
    Date of Patent: August 24, 1976
    Assignee: A/S Kongsberg Vapenfabrik
    Inventor: Ola Westby
  • Proximity fuse
    Patent number: 3934510
    Abstract: A proximity fuse comprising at least two frequency selective amplifiers having different band-pass characteristics and both receiving the same input signals. The first amplifier, having the narrower band-pass filter, will activate a detonator upon receipt of a signal which lies within the pass-band of said filter and which exceeds a given value. If a signal appears in the pass-band of the second amplifier which has the broader pass-band, and said signal exceeds a certain level, the output of said second amplifier will change said level which a signal in said first amplifier must exceed in order to activate the detonator.The output terminal of said first amplifier is connected to a first level detector, and the output terminal of said second amplifier is connected to a second level detector.
    Type: Grant
    Filed: March 25, 1974
    Date of Patent: January 27, 1976
    Assignee: A/S Kongsberg Vapenfabrik
    Inventor: Bjorn Dahl