Patents by Inventor Dirk Prust

Dirk Prust 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).

  • Spindle in a machine tool
    Patent number: 6481940
    Abstract: A spindle (10) is arranged in a machine tool, said spindle (10) having an axis (46), a receptacle arranged in the axis (46) and provided for receiving a shaft of a tool holder (14), and a clamping mechanism for axial fixation of the shaft in the receptacle, the clamping mechanism comprising an axially movable clamping arbor (18) with a circumference, at least one segment (60) arranged at said circumference and having at least a first and a second radial operation position, whereby said at least one segment (60) fixes said shaft positively in said receptacle, when being in the first radial operation position, first guiding means acting between the clamping arbor (18) and the at least one segment (60) such that upon axial movement of the clamping arbor (18) the at least one segment (60) is radially transferred between said first and second radial operation positions, and second guiding means arranged for holding said at least one segment (60) in the defined way when being in said second radial operation positio
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: November 19, 2002
    Assignee: Chiron-Werke GmbH & Co. KG
    Inventors: Dirk Prust, Rudolf Haninger
  • Spindle in a machine tool
    Publication number: 20020014141
    Abstract: A spindle (10) is arranged in a machine tool, said spindle (10) having an axis (46), a receptacle arranged in the axis (46) and provided for receiving a shaft of a tool holder (14), and a clamping mechanism for axial fixation of the shaft in the receptacle, the clamping mechanism comprising an axially movable clamping arbor (18) with a circumference, at least one segment (60) arranged at said circumference and having at least a first and a second radial operation position, whereby said at least one segment (60) fixes said shaft positively in said receptacle, when being in the first radial operation position, first guiding means acting between the clamping arbor (18) and the at least one segment (60) such that upon axial movement of the clamping arbor (18) the at least one segment (60) is radially transferred between said first and second radial operation positions, and second guiding means arranged for holding said at least one segment (60) in the defined way when being in said second radial operation positio
    Type: Application
    Filed: June 25, 2001
    Publication date: February 7, 2002
    Inventors: Dirk Prust, Rudolf Haninger