Patents Assigned to Power Packing Company, Inc.
  • Patent number: 6186510
    Abstract: A mechanical face-type seal assembly which provides substantially annular, axially biasing force along the annular seal created between the rotary seal face and the stationary seal face of the seal assembly. The device preferably employs a substantially annular segment of interconnected canted coils in conjunction with a cartridge-type configuration to provide substantially annular, axial biasing force to the rotary and stationary seal faces, while also providing an improved configuration for maintaining the sealing rings and interconnected canted coils in axial alignment and installing the entire assembly as a single cartridge on a variety of applications.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: February 13, 2001
    Assignee: Power Packing Company, Inc.
    Inventor: Michael P. Reagan
  • Patent number: 5615893
    Abstract: Sectioned mechanical sealing rings divided into at least two sealing ring segments aligned by special aligning clips are described. Each ring segment has an arcuate inner wall portion having an arcuate recess therein traversing and extending laterally on both sides of the interface between adjacent segments. An aligning clip is positioned in the recess of one segment adjacent the interface and fastened so that it projects into the recess on the other side of the interface. The clips are U-shaped and the projecting U-shaped portions have essentially the same outer width as the width of the recess. When not inserted into the recess the legs of the clips diverge so that when installed in the recess, the legs lie flat and are tensioned against the walls defining the recess.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: April 1, 1997
    Assignee: Power Packing Company, Inc.
    Inventor: Michael P. Reagan