Patents Assigned to Alphatech, Inc.
  • Method for making composite centrifugally cast furnace roll rings for furnace rolls
    Patent number: 5615482
    Abstract: A method for making either a ringless annealing furnace roll or a furnace roll having a series of spaced rings for supporting a metal strip being removed from an annealing furnace. Each ring is centrifugally cast with an outer rim of a steel alloy that is relatively insoluble with respect to the alloy of the strip being transferred from the furnace, and an inner liner of an alloy that can be readily welded to a roll. The inner liner material is fused to the rim material to form a composite ring.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: April 1, 1997
    Assignee: Alphatech, Inc.
    Inventor: Jorge A. Morando
  • Self-aligning bearing for high temperature applications
    Patent number: 5549393
    Abstract: A steel mill roll has its ends supported in self-aligning bearings that do not require a liquid or grease lubricant, and which are capable or operating at roll shaft temperatures up to 1500.degree. F.
    Type: Grant
    Filed: January 9, 1995
    Date of Patent: August 27, 1996
    Assignee: Alphatech, Inc.
    Inventor: Jorge A. Morando