Patents Examined by Robert T. Hendrix
  • Unitary insulated glass unit and method of manufacture
    Patent number: 6055783
    Abstract: A multi-paned fenestration unit in which the glass panes are manufactured directly into the support structure without first manufacturing an insulated glass unit. The support structure is designed to provide the structural support for the glass panes without a separate spacer.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: May 2, 2000
    Assignee: Andersen Corporation
    Inventors: James Curtis Guhl, Steven Matthew Johnson
  • Single facer with small intermediate corrugating roll
    Patent number: 5951816
    Abstract: The labyrinth path in the corrugating nip of a single facer is substantially reduced by utilizing a small diameter corrugating roll captured between a larger diameter conventional corrugating roll and a backing roll arrangement. The smaller diameter corrugating roll is captured to prevent bending thereof under corrugating loads. The corrugator may be operated at high speeds without the adverse increase in labyrinth path and web tension characteristic of a pair of large diameter corrugating rolls.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: September 14, 1999
    Assignee: Marquip, Inc.
    Inventor: Carl R. Marschke