Patents by Inventor Surinderpal S. Sall

Surinderpal S. Sall 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).

  • Mechanical face seals with wear monitor means
    Patent number: 4497493
    Abstract: A method of monitoring the wear of the sealing faces of a mechanical face seal comprising; positioning a probe radially of the axially moveable seal face member of the seal or a component which moves axially with the seal face member; producing a signal which is directed radially outwardly from the surface of the seal face member or component so that it may be picked up by the probe; and arranging the surface of the seal face member or component such that there is a change in signal, indicative of the wear on the sealing faces, as the seal face member moves axially with respect to the probe.
    Type: Grant
    Filed: July 11, 1984
    Date of Patent: February 5, 1985
    Assignee: Crane Packing Limited
    Inventors: Surinderpal S. Sall, John Kemp