Patents by Inventor Carl G. Langenskiold

Carl G. Langenskiold 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).

  • Apparatus and method for electroplating
    Patent number: 5427674
    Abstract: An apparatus for electroplating, particularly in the production of metal matrices for manufacturing articles of plastic, such as compact discs, said apparatus comprising a container having a peripheral wall and opposed first and second end walls so as to form a plating space therein, adapted to house an electrolyte, and an anode, a carrier with an electrically conductive surface to be plated forming the cathode and means being arranged between the anode and the cathode for providing a flow of electrolyte from said cathode towards said anode. For allowing a faster production of metal matrices with better quality it is suggested according to the invention that the peripheral wall is formed with an internal contour which substantially corresponds to the surface to be plated, said carrier forming the second container end wall which through intermediate current supply members is sealingly urged against the mating edge of the peripheral wall, while the anode is located adjacent said first end wall of the container.
    Type: Grant
    Filed: June 28, 1993
    Date of Patent: June 27, 1995
    Assignee: Cinram, Ltd.
    Inventors: Carl G. Langenskiold, Stefan Olin, Mats A. Hallberg
  • Apparatus and method for electroplating
    Patent number: 5244563
    Abstract: An apparatus for electroplating, particularly in the production of metal matrices for manufacturing articles of plastic, such as compact discs, said apparatus comprising a container having a peripheral wall and opposed first and second end walls so as to form a plating space therein, adapted to house an electrolyte, and an anode, a carrier with an electrically conductive surface to be plated forming the cathode and means being arranged between the anode and the cathode for providing a flow of electrolyte from said cathode towards said anode. For allowing a faster production of metal matrices with better quality it is suggested according to the invention that the peripheral wall is formed with an internal contour which substantially corresponds to the surface to be plated, said carrier forming the second container end wall which through intermediate current supply members is sealingly urged against the mating edge of the peripheral wall, while the anode is located adjacent said first end wall of the container.
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: September 14, 1993
    Inventors: Carl G. Langenskiold, Stefan Olin, Mats A. Hallberg