Patents Assigned to PND Engineers, Inc.
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Patent number: 11149395Abstract: Embodiments of the disclosure are directed to cellular sheet pile retaining wall systems with unconnected tail walls, and associated methods of use and manufacture. In one embodiment, a retaining system includes a face wall having a plurality of interconnected face wall sheet piles. The individual face wall sheet piles have a first length and extend a first depth into soil, and the face wall sheet piles form an exterior surface facing an exterior environment. The system also includes a tail wall including a plurality of interconnected tail wall sheet piles extending from the face wall away from the exterior environment. The individual tail wall sheet piles have a second length greater than the first length, and the individual tail sheet wall piles extend a second depth into the soil that is greater than the first depth.Type: GrantFiled: July 12, 2018Date of Patent: October 19, 2021Assignee: PND Engineers, Inc.Inventors: William D. Nottingham, Michael Hartley, William Gunderson
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Patent number: 10781568Abstract: A system that includes a plurality of front faces configured to be arranged end-to-end in a series. Adjacent front faces are connected together by a different X-shaped or X-wye connector that facilitates installation of reinforcement tail walls. At least one tail wall is connected to each connector. A redundant reinforcing tail wall may be constructed and attached to one of the connectors to provide alternative load path(s).Type: GrantFiled: October 23, 2018Date of Patent: September 22, 2020Assignee: PND ENGINEERS, INC.Inventors: Charles D. Courtright, Dempsey S. Thieman
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Patent number: 10287741Abstract: 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: GrantFiled: May 22, 2017Date of Patent: May 14, 2019Assignee: PND Engineers, Inc.Inventor: William Dennis Nottingham
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Patent number: 10145076Abstract: A system that includes a plurality of front faces configured to be arranged end-to-end in a series. Adjacent front faces are connected together by a different X-shaped or X-wye connector that facilitates installation of reinforcement tail walls. At least one tail wall is connected to each connector. A redundant reinforcing tail wall may be constructed and attached to one of the connectors to provide alternative load path(s).Type: GrantFiled: August 12, 2016Date of Patent: December 4, 2018Assignee: PND ENGINEERS, INC.Inventors: Charles D. Courtright, Dempsey S. Thieman
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Patent number: 10024017Abstract: Embodiments of the disclosure are directed to cellular sheet pile retaining wall systems with unconnected tail walls, and associated methods of use and manufacture. In one embodiment, a retaining system includes a face wall having a plurality of interconnected face wall sheet piles. The individual face wall sheet piles have a first length and extend a first depth into soil, and the face wall sheet piles form an exterior surface facing an exterior environment. The system also includes a tail wall including a plurality of interconnected tail wall sheet piles extending from the face wall away from the exterior environment. The individual tail wall sheet piles have a second length greater than the first length, and the individual tail sheet wall piles extend a second depth into the soil that is greater than the first depth.Type: GrantFiled: September 10, 2010Date of Patent: July 17, 2018Assignee: PND Engineers, Inc.Inventors: William D. Nottingham, Michael Hartley, William F. Gunderson
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Patent number: 9657454Abstract: 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: GrantFiled: January 2, 2015Date of Patent: May 23, 2017Assignee: PND ENGINEERS, INC.Inventor: William Dennis Nottingham
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Patent number: 8950981Abstract: A soil raining 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: GrantFiled: January 5, 2009Date of Patent: February 10, 2015Assignee: PND Engineers, Inc.Inventor: William Dennis Nottingham
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Patent number: 8444348Abstract: Modular offshore platform systems and associated methods of transport and assembly are disclosed herein. A method of transporting a modular offshore platform to an offshore location in accordance with an embodiment of the disclosure includes transporting towing a first platform portion of the offshore platform to an offshore location and transporting a second platform portion of the offshore platform to the offshore location separately from the first platform portion. The method further includes attaching the second platform portion to the first platform portion at the offshore location, and anchoring at least one of the first and second platform portions to a sea floor at the offshore location.Type: GrantFiled: June 30, 2010Date of Patent: May 21, 2013Assignee: PND Engineers, Inc.Inventors: William Dennis Nottingham, Kenton Braun
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Publication number: 20110064527Abstract: Embodiments of the disclosure are directed to cellular sheet pile retaining wall systems with unconnected tail walls, and associated methods of use and manufacture. In one embodiment, a retaining system includes a face wall having a plurality of interconnected face wall sheet piles. The individual face wall sheet piles have a first length and extend a first depth into soil, and the face wall sheet piles form an exterior surface facing an exterior environment. The system also includes a tail wall including a plurality of interconnected tail wall sheet piles extending from the face wall away from the exterior environment. The individual tail wall sheet piles have a second length greater than the first length, and the individual tail sheet wall piles extend a second depth into the soil that is greater than the first depth.Type: ApplicationFiled: September 10, 2010Publication date: March 17, 2011Applicant: PND Engineers, Inc.Inventors: William D. Nottingham, Michael Hartley, William F. Gunderson