Patents by Inventor Ramalingam Sivalingham

Ramalingam Sivalingham 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).

  • Two speed accessory drive
    Patent number: 4667537
    Abstract: A two speed accessory drive primarily for rotating engine driven accessories at either of two selectible speeds. The drive includes a drum rotatable with an input shaft. Positioned within the drum are a plurality of self-activating brake shoes that are moved into and out of engagement with the drum by a corresponding set of levers. The motion of the levers is controlled by the relative rotation between a plurality of disks positioned remote from the drum.
    Type: Grant
    Filed: May 30, 1985
    Date of Patent: May 26, 1987
    Assignee: Canadian Fram Limited
    Inventor: Ramalingam Sivalingham
  • Two speed accessory drive
    Patent number: 4662861
    Abstract: A two speed accessory drive (10) comprising an input unit (20) and a remotely positioned output unit (100) connected by a plurality of belts (108,100). The input unit is adapted to be driven by a remotely positioned driving member (102). The output unit, which is connected to the engine accessories by a serpentine belt (106), includes a linear actuator (280) for engaging and disengaging same.
    Type: Grant
    Filed: November 27, 1985
    Date of Patent: May 5, 1987
    Assignee: Canadian Fram Limited
    Inventors: Michael B. Seung, Ramalingam Sivalingham, David A. Bullen, Andrew G. Anderson, Donald A. McCharles