Patents by Inventor Tilo Heyl

Tilo Heyl 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 for automatically switching off and disconnecting an electric motor shaft drive accelerating a winding bobbin once a circumferential cylinder drive has become effective
    Patent number: 4404501
    Abstract: A circuit for automatically disconnecting a shaft drive spinning a textile winding bobbin and automatically substituting a circumferential cylinder drive for the shaft drive is disclosed. The cylinder drive becomes effective a short time after the start of the textile winding process. A signal proportional to the torque of the shaft drive motor is stored in a storage amplifier shortly after the start of the winding process. If the continuously measured instantaneous current value of the shaft drive exceeds, when both drives operate in parallel, the stored current value, a command to switch off the shaft drive is given.
    Type: Grant
    Filed: March 24, 1982
    Date of Patent: September 13, 1983
    Assignee: Siemens Aktiengesellschaft
    Inventors: Dietrich Krampe, Tilo Heyl