Patents Represented by Attorney Hugh D. Jeager
  • Patent number: 4913224
    Abstract: A chill roll for cooling a web, such as in the printing industry, where a uniform temperature across the chill roll is maintained. Journals support an outer roll assembly and an inner roll assembly. The inner roll assembly is bearing mounted on the inner ends of opposing journals and the outer roll is rotated about the inner roll, which is weighted to free-wheel about the bearings to minimize rotary motion. Coolant is introduced through the journal on one end and into a center tube, where the coolant uniformly flows in an annular space between the rolls and along the length of the inner and outer roll assemblies to circumferentially traverse between the rotating and stationary outer and inner rolls. This coolant flow provides enhanced heat transfer from the outer rotating chill roll to the circulating coolant. Heated coolant collects and returns through a center tube, and exhausts through the center tube and out through the journal.
    Type: Grant
    Filed: April 10, 1989
    Date of Patent: April 3, 1990
    Assignee: W. R. Grace & Co.-Conn.
    Inventor: Kenneth J. Moran