Patents by Inventor Steve Kulawic

Steve Kulawic 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).

  • Pressure-expandable conduit liner
    Patent number: 5931199
    Abstract: Conduit liners and methods for their construction and use are provided. The liners include a first flexible layer mechanically bonded to at least one glass-containing layer and folded to form a tubular laminate. The laminate can be penetrable by resinous liquid capable of setting the form of substantially continuous matrix within the laminate following the expansion of the laminate within a conduit. In preferred versions of the liner, multiple glass layers are provided on the inner and outer diameter of the construction with a polyester core so as to meet minimum thickness requirements for vibration resistance under American in situ pipe vibration resistance codes.
    Type: Grant
    Filed: January 22, 1998
    Date of Patent: August 3, 1999
    Assignee: Bay Mills Ltd.
    Inventors: Mark Kittson, Steve Kulawic
  • Pressure-expandable conduit liner
    Patent number: 5911246
    Abstract: Conduit liners and methods for their construction and use are provided. The liners include a first flexible layer mechanically bonded to at least one glass-containing layer and folded to form a tubular laminate. The laminate can be penetrable by resinous liquid capable of setting the form of substantially continuous matrix within the laminate following the expansion of the laminate within a conduit. In preferred versions of the liner, multiple glass layers are provided on the inner and outer diameter of the construction with a polyester core so as to meet minimum thickness requirements for vibration resistance under American in situ pipe vibration resistance codes.
    Type: Grant
    Filed: January 22, 1998
    Date of Patent: June 15, 1999
    Assignee: Bay Mills, Ltd.
    Inventors: Mark Kittson, Steve Kulawic
  • Pressure-expandable conduit liner
    Patent number: 5873391
    Abstract: Conduit liners and methods for their construction and use are provided. The liners include a first flexible layer mechanically bonded to at least one glass-containing layer and folded to form a tubular laminate. The laminate can be penetrable by resinous liquid capable of setting the form of substantially continuous matrix within the laminate following the expansion of the laminate within a conduit. In preferred versions of the liner, multiple glass layers are provided on the inner and outer diameter of the construction with a polyester core so as to meet minimum thickness requirements for vibration resistance under American in situ pipe vibration resistance codes.
    Type: Grant
    Filed: January 22, 1998
    Date of Patent: February 23, 1999
    Assignee: Bay Mills Ltd
    Inventors: Mark Kittson, Steve Kulawic
  • Pressure-expandable conduit liner
    Patent number: 5836357
    Abstract: Conduit liners and methods for their construction and use are provided. The liners include a first flexible layer mechanically bonded to at least one glass-containing layer and folded to form a tubular laminate. The laminate can be penetrable by resinous liquid capable of setting the form of substantially continuous matrix within the laminate following the expansion of the laminate within a conduit. In preferred versions of the liner, multiple glass layers are provided on the inner and outer diameter of the construction with a polyester core so as to meet minimum thickness requirements for vibration resistance under American in situ pipe vibration resistance codes.
    Type: Grant
    Filed: October 26, 1995
    Date of Patent: November 17, 1998
    Assignee: Bay Mills Ltd.
    Inventors: Mark Kittson, Steve Kulawic