Patents by Inventor Johann C. Promoli

Johann C. Promoli 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).

  • Spinning machine, especially an open-end spinning machine, with a plurality of spinning units and with a maintenance device movable along the machine
    Patent number: 4475331
    Abstract: On a spinning machine, especially an open-end spinning machine, which has a plurality of spinning units (10) each with a plurality of elements (4, 41) to be controlled electrically, there is a maintenance device (2) which is movable along the machine and which can be coupled electrically to the elements (4, 41) to be controlled of the particular spinning unit (10) located in its working range. One bus line (51, 52) is provided for identical elements (4, 41) to be controlled electrically of each of a plurality of spinning units (10). Furthermore, each spinning unit (10) has a switching device (55) which can be actuated as a function of the posiiton of the maintenance device (2) and which connects the various elements (4, 41) to be controlled electrically of a spinning unit (10) to the bus lines (51, 52) which are assigned to them and to which the maintenance device (2) is constantly connected.
    Type: Grant
    Filed: June 11, 1982
    Date of Patent: October 9, 1984
    Assignee: Schubert & Salzer, A.G.
    Inventors: Johann C. Promoli, Rolf Guse, Sohrab Tabibi