Control By Moving Cylinder Or Liner Patents (Class 91/479)
  • Patent number: 10280931
    Abstract: Embodiments of the invention provide a pump having a motor, a housing, a seal plate coupled to the housing and including a seal plate hub with mounting supports, an impeller arranged within the housing, a coupling assembly coupling a motor shaft and a pump shaft, and a seal and jacking assembly including a mechanical seal and a seal gland. The seal gland is removably coupled to the mounting supports and includes threaded jacking apertures extending axially through the seal gland, each configured to receive a jacking element. When the seal gland is decoupled from the mounting supports, the seal gland is moveable axially between a first position whereat the seal gland engages the mechanical seal and a second position whereat the seal gland engages a retaining ring coupled to the pump shaft in response to rotation of the jacking elements received within the pair of threaded jacking apertures.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: May 7, 2019
    Assignee: Pentair Flow Technologies, LLC
    Inventors: Rajendra Prasad DJ, Sunny Shorabh