Patents Assigned to Peratrovich, Nottingham & Drage, Inc.
  • Publication number: 20090232607
    Abstract: A soil raining system combining flat sheet pile wails in an open cell configuration includes integral soil anchors providing an improved earth retaining system. Another aspect of the invention is a method of designing and installing a soil retaining system with an open sheet pile cell structure having integral soil anchors. The method includes, inter alia, calculating soil forces by taking into account material strength of sheet pile, soil friction against the sheet pile in combination with the strength of the integral soil anchor, selecting sheet pile size and length based on soil forces calculation; and installation of sheet pile to form a soil retaining system. The integral soil anchors serve to provide higher load resistance to the improved earth retaining system.
    Type: Application
    Filed: January 5, 2009
    Publication date: September 17, 2009
    Applicant: Peratrovich, Nottingham & Drage, Inc.
    Inventor: William Dennis Nottingham
  • Patent number: 7488140
    Abstract: A soil retaining system combining flat sheet pile walls in an open cell configuration includes integral soil anchors providing an improved earth retaining system. Another aspect of the invention is a method of designing and installing a soil retaining system with an open sheet pile cell structure having integral soil anchors. The method includes, inter alia, calculating soil forces by taking into account material strength of sheet pile, soil friction against the sheet pile in combination with the strength of the integral soil anchor, selecting sheet pile size and length based on soil forces calculation; and installation of sheet pile to form a soil retaining system. The integral soil anchors serve to provide higher load resistance to the improved earth retaining system.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: February 10, 2009
    Assignee: Peratrovich, Nottingham & Drage, Inc.
    Inventor: William Dennis Nottingham
  • Publication number: 20060193701
    Abstract: A soil retaining system combining flat sheet pile walls in an open cell configuration includes integral soil anchors providing an improved earth retaining system. Another aspect of the invention is a method of designing and installing a soil retaining system with an open sheet pile cell structure having integral soil anchors. The method includes, inter alia, calculating soil forces by taking into account material strength of sheet pile, soil friction against the sheet pile in combination with the strength of the integral soil anchor, selecting sheet pile size and length based on soil forces calculation; and installation of sheet pile to form a soil retaining system. The integral soil anchors serve to provide higher load resistance to the improved earth retaining system.
    Type: Application
    Filed: February 1, 2006
    Publication date: August 31, 2006
    Applicant: Peratrovich, Nottingham & Drage, Inc.
    Inventor: William Nottingham
  • Patent number: 7018141
    Abstract: A soil retaining system combining flat sheet pile walls in an open cell configuration includes integral soil anchors to provide an earth retaining system. A method of designing and installing a soil retaining system with an open sheet pile cell structure having integral soil anchors. The method includes, inter alia, calculating soil forces by taking into account material strength of sheet pile, soil friction against the sheet pile in combination with the strength of the integral soil anchor, selecting sheet pile size and length based on soil forces calculation; and installation of sheet pile to form a soil retaining system. The integral soil anchors serve to provide higher load resistance to the earth retaining system.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: March 28, 2006
    Assignee: Peratrovich, Nottingham & Drage, Inc.
    Inventor: William Dennis Nottingham
  • Publication number: 20040208708
    Abstract: A soil retaining system combining flat sheet pile walls in an open cell configuration includes integral soil anchors providing an improved earth retaining system. Another aspect of the invention is a method of designing and installing a soil retaining system with an open sheet pile cell structure having integral soil anchors. The method includes, inter alia, calculating soil forces by taking into account material strength of sheet pile, soil friction against the sheet pile in combination with the strength of the integral soil anchor, selecting sheet pile size and length based on soil forces calculation; and installation of sheet pile to form a soil retaining system. The integral soil anchors serve to provide higher load resistance to the improved earth retaining system.
    Type: Application
    Filed: March 15, 2004
    Publication date: October 21, 2004
    Applicant: Peratrovich, Nottingham & Drage, Inc.
    Inventor: William Dennis Nottingham
  • Patent number: 6715964
    Abstract: A soil retaining system combining flat sheet pile walls in an open cell configuration includes integral soil anchors to provide an earth retaining system. A method of designing and installing a soil retaining system with an open sheet pile cell structure having integral soil anchors. The method includes, inter alia, calculating soil forces by taking into account material strength of sheet pile, soil friction against the sheet pile in combination with the strength of the integral soil anchor, selecting sheet pile size and length based on soil forces calculation; and installation of sheet pile to form a soil retaining system. The integral soil anchors serve to provide higher load resistance to the earth retaining system.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: April 6, 2004
    Assignee: Peratrovich, Nottingham & Drage, Inc.
    Inventor: William Dennis Nottingham
  • Patent number: 6530101
    Abstract: A multiple-use, cable-supported bridge in which the primary lateral and vertical deck-stiffening elements are prestressed cables, or strands, extending along one or both sides of the bridge, and methods of fabricating such bridges, are shown and described. One embodiment of the strand bridge of the present invention is designed to span from a first location to a second location. A first anchor member is fixed near the first location and an opposing second anchor member is fixed near the second location. A number of tensioned cables extend between the first and second anchor members. At least one post is attached to the cables at a point between the first and second anchor members. A cross member is attached to the post and projects from the post in a direction transverse to the lengths of the cables. Decking material extends from the first location to the second location, and can be coupled to the cross member.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: March 11, 2003
    Assignee: Peratrovich, Nottingham & Drage, Inc.
    Inventor: William Dennis Nottingham
  • Patent number: 5102261
    Abstract: A floating containment boom for containment and isolation of waterborne pollutants, such as oil, silt, medical waste, bacteria, debris, and suspended particulates. The containment boom is comprised of a floatation unit, a ballast, a continuous curtain of at least one sheet of a flexible geosynthetic fabric, and at least two tow cords. The curtain has an upper sleeve containing the flotation unit and may have a lower sleeve containing the ballast. The geosynthetic fabric is water-pervious and may be oil-absorbing. The fabric allows water to pass through while containing the waterborne pollutants. The boom of the invention may also be used as a seining device, to define a swim area, and as a littoral flow trap.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: April 7, 1992
    Assignee: Peratrovich, Nottingham & Drage, Inc.
    Inventor: William F. Gunderson, III