Patents Examined by Creighten Smith
  • Patent number: 4712339
    Abstract: Apparatus for providing a vector connection between openings in an enclosed walkway and an adjacent structure. The apparatus is mountable at the walkway opening to vector seal between the walkway and the apparatus. A tubular sealing part of flexible material provides a passageway with open ends for surrounding the walkway opening and structure opening, and a plurality of expandable chambers extend peripherally about the passageway. Expansion of the chambers flexes the sealing part causing it to project from the walkway and abut with a surface of an adjacent structure and surround the structure opening, whilst contraction of the chambers retract the sealing part from the structure back to adjacent the walkway opening. At least one of the chambers is adjacent the open end of the passageway near the structure and deforms as necessary upon abutment of the sealing part with the structures so that the sealing part conforms to the structure surface and vector seals completely about the structure opening.
    Type: Grant
    Filed: June 2, 1986
    Date of Patent: December 15, 1987
    Assignee: Astarni Pty. Ltd.
    Inventors: Bruce T. Wenham, Raymond Cook, Clifford R. Hunter
  • Patent number: 4680905
    Abstract: A sloper curtainwall or glazing system for a building or the like includes a plurality of rafters and purlins interconnected together to provide at least one panel opening for retaining a panel. The rafters have an upwardly sloping vertical glazing pocket adapted to receive a vertical marginal edge portion of a panel and the purlins have a horizontal glazing pocket adapted to receive a horizontal marginal edge portion of a panel. The rafters each further include a semi-enclosed drainage channel and a condensation gutter not disposed in fluid communication with either said drainage channel or said vertical glazing pocket. The purlins further include a condensation gutter. The purlin and rafter condensation gutters are disposed in fluid communication with each other and the drainage channel is provided with at least one opening to put the vertical and horizontal glazing pockets in communication therewith.
    Type: Grant
    Filed: August 26, 1985
    Date of Patent: July 21, 1987
    Assignee: PPG Industries, Inc.
    Inventor: James A. Rockar