Patents by Inventor Theo Kroenchen

Theo Kroenchen 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).

  • Disc record stamper alignment
    Patent number: 4527971
    Abstract: An upper press block for a disc record press comprises a support member surrounding a mould member to which a stamper plate is fixed. Means for adjusting the axis of the stamper plate relative to the support member are provided by four lever arms evenly spaced around the mould member, each lever arm being pivotally mounted to the support member and engaging the periphery of the mould member. Each lever arm is disposed between two opposing cams which may be rotated to adjust the mould block position in a lockable manner.
    Type: Grant
    Filed: September 16, 1983
    Date of Patent: July 9, 1985
    Assignee: EMI Electrola Gesellschaft mit beschrankter Haftung
    Inventors: Hermann Strausfeld, Theo Kroenchen