Patents by Inventor Michael P. Sakno

Michael P. Sakno has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Firestop coupling for penetration of building separations
    Publication number: 20040211138
    Abstract: A cast-in-place coupling (6) is positioned on concrete forms (2) by detachable attachment means (7, 10). The coupling (6) may have breakaway tabs (7) or may be frictionally engaged to a fitting (10) fastened to a form (2). After concrete is poured the attachment means (7, 10) is separated from the coupling (6) with minimum effort and inconvenience. The coupling (6) itself contains an intumescent which causes the coupling (6) to convert to a firestop under file conditions.
    Type: Application
    Filed: May 4, 2004
    Publication date: October 28, 2004
    Inventor: Michael P. Sakno
  • Water impervious intumescent firestop collapsing conduit
    Patent number: 5634304
    Abstract: A firestop conduit element is formed of an inner conduit of fusible material surrounded by intumescent material which is contained within an exterior moisture impenetrable barrier. A preferred barrier is an external sleeve, bonded at its ends to the conduit. The ends of the conduit element are coupleable to exterior conduit systems.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: June 3, 1997
    Inventor: Michael P. Sakno