Patents by Inventor Douglas C. Fishburn

Douglas C. Fishburn 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).

  • Publication number: 20100058657
    Abstract: An edging system for green roofing applications defines the margin between grow medium zones and vegetative free zones. An edge and restraint system comprises a edging structure having a substantially upright section having a height and a base section extending laterally from a the middle or lower end of the upright section on at least one lateral side thereof. The base section extends substantially perpendicularly from the upright section. The upright section and base sections may or may not include openings therethrough to allow drainage of water and the like. The upper end of the upright section is adapted to allow a restrainer piece to be releasably secured thereto in snap fit engagement.
    Type: Application
    Filed: August 25, 2009
    Publication date: March 11, 2010
    Inventor: Douglas C. Fishburn
  • Patent number: 7360289
    Abstract: The present invention provides an apparatus for use on a roof or the like which incorporates an insulation material. The invention allows workers to shave the insulating layer to smooth, remove high spots, or create slopes, valleys or sumps, in order to achieve positive slope for water drainage. As part of the invention, there is provided, an apparatus for milling the surface of a low slope substrate, comprising a milling device comprising a cylindrical tubular structure having an outer rotatable milling surface, said surface positionable adjacent said substrate and drivable in a rotary motion to mill the surface of the substrate; a milling device support upon which said milling device is mounted for movement in a milling direction; a mounting assembly for mounting said milling device to said support; said mounting assembly including means for adjusting the angle and depth of engagement of said milling surface to said substrate.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: April 22, 2008
    Inventor: Douglas C. Fishburn
  • Publication number: 20070280801
    Abstract: The present invention provides an apparatus for use on a roof or the like which incorporates an insulation material. The invention allows workers to shave the insulating layer to smooth, remove high spots, or create slopes, valleys or sumps, in order to achieve positive slope for water drainage. As part of the invention, there is provided, an apparatus for milling the surface of a low slope substrate, comprising a milling device comprising a cylindrical tubular structure having an outer rotatable milling surface, said surface positionable adjacent said substrate and drivable in a rotary motion to mill the surface of the substrate; a milling device support upon which said milling device is mounted for movement in a milling direction; a mounting assembly for mounting said milling device to said support; said mounting assembly including means for adjusting the angle and depth of engagement of said milling surface to said substrate.
    Type: Application
    Filed: June 1, 2006
    Publication date: December 6, 2007
    Inventor: Douglas C. Fishburn
  • Patent number: 6155759
    Abstract: An apparatus for milling the surface of low slope substrate has a milling device, such as a saw, and a track along which the milling device may move. The track is supported above the substrate by a plurality of adjustable supports which have adjustment means for orienting the track vertically or at a desired angle to horizontal. A mounting assembly for the milling device has means for engaging the track and enabling movement of the assembly along the track with the milling device depending from the mounting assembly. Adjustment means coact with the milling device and the mounting assembly enabling the device to be oriented in a desired manner relative to the substrate.
    Type: Grant
    Filed: December 2, 1998
    Date of Patent: December 5, 2000
    Inventor: Douglas C. Fishburn
  • Patent number: 4706432
    Abstract: A composite roofing system having a layer of insulation and a roof membrane is provided with an air seal structure about the insulation layer. The air seal preferably also coacts with a vapor barrier and is fastened to the roof deck and sealed to the roof membrane. The resulting roof system is independent of the flashing structure for the roof and incorporates the roofing system into the air seal for the entire building.
    Type: Grant
    Filed: February 18, 1986
    Date of Patent: November 17, 1987
    Assignee: Fishburn Roofing Sciences Group Limited
    Inventor: Douglas C. Fishburn