Patents by Inventor Nguyen Thai Dang

Nguyen Thai Dang 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).

  • Patent number: 11066803
    Abstract: A subgrade vault system with a locking lid assembly is provided. Specifically, a subgrade vault suitable for housing utility and similar equipment is provided, the vault comprising a main body portion, a cap, and a lid that may be selectively secured with one or more rotatable locking mechanisms to prevent or deter unauthorized access to vault contents.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: July 20, 2021
    Assignee: OLDCASTLE INFRASTRUCTURE, INC.
    Inventor: Nguyen Thai Dang
  • Patent number: 10947693
    Abstract: In various embodiments, lids for an in-ground or subgrade vault is provided. In various embodiments, lids are provided with a plastic reinforcement structure and concrete. The plastic reinforcement structure includes one or more plastic sidewalls that protect the edges of the lid from damage. An internal reinforcement structure comprises receiving members for receiving, securing, and positioning rebar members that are cast in place in a finished product.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: March 16, 2021
    Assignee: Oldcastle Infrastructure, Inc.
    Inventors: Nguyen Thai Dang, Mike Collins
  • Publication number: 20190301127
    Abstract: In various embodiments, lids for an in-ground or subgrade vault is provided. In various embodiments, lids are provided with a plastic reinforcement structure and concrete. The plastic reinforcement structure includes one or more plastic sidewalls that protect the edges of the lid from damage. An internal reinforcement structure comprises receiving members for receiving, securing, and positioning rebar members that are cast in place in a finished product.
    Type: Application
    Filed: April 1, 2019
    Publication date: October 3, 2019
    Inventors: Nguyen Thai Dang, Mike Collins
  • Publication number: 20190271135
    Abstract: A subgrade vault system with a locking lid assembly is provided. Specifically, a subgrade vault suitable for housing utility and similar equipment is provided, the vault comprising a main body portion, a cap, and a lid that may be selectively secured with one or more rotatable locking mechanisms to prevent or deter unauthorized access to vault contents.
    Type: Application
    Filed: March 26, 2019
    Publication date: September 5, 2019
    Applicant: OLDCASTLE PRECAST, INC.
    Inventor: Nguyen Thai Dang
  • Patent number: 10240316
    Abstract: A subgrade vault system with a locking lid assembly is provided. Specifically, a subgrade vault suitable for housing utility and similar equipment is provided, the vault comprising a main body portion, a cap, and a lid that may be selectively secured with one or more rotatable locking mechanisms to prevent or deter unauthorized access to vault contents.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: March 26, 2019
    Assignee: OLDCASTLE PRECAST, INC.
    Inventor: Nguyen Thai Dang
  • Patent number: 10197088
    Abstract: A nut configured to threadably engage an external thread of a bolt is provided. The nut generally comprises an upper portion that defines a first thread, a lower portion that defines a second thread, and a sidewall portion that connects the upper portion and the lower portion. The upper portion may be separated from the lower portion by a gap, and the sidewall portion may include a first sidewall spaced apart from a second sidewall.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: February 5, 2019
    Assignee: OLDCASTLE PRECAST, INC.
    Inventor: Nguyen Thai Dang
  • Patent number: 10132052
    Abstract: A vault system is provided that secures a brace to the underside of a vault lid to improve the performance of the lid when the lid is subject to external loads. The vault has guiding features to receive a brace and place the brace in a particular position. Then, a vault lid is pressed into the vault, and tabs on the vault lid deflect into receiving portions on the ends of the brace to secure the brace to the vault lid. The resulting vault lid is reinforced with a brace. In some embodiments, the guiding feature comprises a rib in a recess in the brace, and in various embodiments, the tabs have an arm and a hook disposed on a distal end of the arm. The tab arms deflect to fit around the end of the brace, then an undercut on the hook secures the brace to the lid.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: November 20, 2018
    Assignee: OLDCASTLE PRECAST, INC.
    Inventors: Nguyen Thai Dang, Eric Long
  • Patent number: 10136530
    Abstract: A vault system is provided that defines an enclosed volume to protect various electrical, water, communications and other components. The system comprises a lid to allow selective access to the contents in the enclosed volume of the vault. Over time, continued wear and tear on the lid of the vault can cause the lid to deflect inward and/or cause the body of the vault to deflect outward, which compromises the integrity of the vault. Interlock features, methods, and systems are provided transfer stress and strain between the lid and the vault, which maintain the integrity of the selective interconnection between the lid and the vault.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: November 20, 2018
    Assignee: OLDCASTLE PRECAST, INC.
    Inventors: Nguyen Thai Dang, Eric Long, John Ronald Gogol
  • Patent number: 9919853
    Abstract: A subgrade vault system and method of forming the same is provided. Specifically, a subgrade vault suitable for housing utility and similar equipment is provided, the vault comprising a main body portion, a cap, and a lid that may be selectively secured to prevent or deter unauthorized access to vault contents.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: March 20, 2018
    Assignee: OLDCASTLE PRECAST, INC.
    Inventors: Eric Freeman, Nguyen Thai Dang
  • Publication number: 20170260712
    Abstract: A vault system is provided that secures a brace to the underside of a vault lid to improve the performance of the lid when the lid is subject to external loads. The vault has guiding features to receive a brace and place the brace in a particular position. Then, a vault lid is pressed into the vault, and tabs on the vault lid deflect into receiving portions on the ends of the brace to secure the brace to the vault lid. The resulting vault lid is reinforced with a brace. In some embodiments, the guiding feature comprises a rib in a recess in the brace, and in various embodiments, the tabs have an arm and a hook disposed on a distal end of the arm. The tab arms deflect to fit around the end of the brace, then an undercut on the hook secures the brace to the lid.
    Type: Application
    Filed: March 13, 2017
    Publication date: September 14, 2017
    Inventors: Nguyen Thai Dang, Eric Long
  • Publication number: 20170163018
    Abstract: A vault system is provided that defines an enclosed volume to protect various electrical, water, communications and other components. The system comprises a lid to allow selective access to the contents in the enclosed volume of the vault. Over time, continued wear and tear on the lid of the vault can cause the lid to deflect inward and/or cause the body of the vault to deflect outward, which compromises the integrity of the vault. Interlock features, methods, and systems are provided transfer stress and strain between the lid and the vault, which maintain the integrity of the selective interconnection between the lid and the vault.
    Type: Application
    Filed: December 5, 2016
    Publication date: June 8, 2017
    Inventors: Nguyen Thai Dang, Eric Long, John Ronald Gogol
  • Publication number: 20160369474
    Abstract: A subgrade vault system with a locking lid assembly is provided. Specifically, a subgrade vault suitable for housing utility and similar equipment is provided, the vault comprising a main body portion, a cap, and a lid that may be selectively secured with one or more rotatable locking mechanisms to prevent or deter unauthorized access to vault contents.
    Type: Application
    Filed: September 6, 2016
    Publication date: December 22, 2016
    Inventor: Nguyen Thai Dang
  • Patent number: 9435099
    Abstract: A subgrade vault system with a locking lid assembly is provided. Specifically, a subgrade vault suitable for housing utility and similar equipment is provided, the vault comprising a main body portion, a cap, and a lid that may be selectively secured with one or more rotatable locking mechanisms to prevent or deter unauthorized access to vault contents.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: September 6, 2016
    Assignee: Oldcastle Precast, Inc.
    Inventor: Nguyen Thai Dang
  • Publication number: 20160176629
    Abstract: A nut configured to threadably engage an external thread of a bolt is provided. The nut generally comprises an upper portion that defines a first thread, a lower portion that defines a second thread, and a sidewall portion that connects the upper portion and the lower portion. The upper portion may be separated from the lower portion by a gap, and the sidewall portion may include a first sidewall spaced apart from a second sidewall.
    Type: Application
    Filed: December 16, 2015
    Publication date: June 23, 2016
    Inventor: Nguyen Thai Dang
  • Patent number: 9346593
    Abstract: A nut configured to threadably engage an external thread of a bolt is provided. The nut generally comprises an upper portion that defines a first thread, a lower portion that defines a second thread, and a sidewall portion that connects the upper portion and the lower portion. The upper portion may be separated from the lower portion by a gap, and the sidewall portion may include a first sidewall spaced apart from a second sidewall.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: May 24, 2016
    Assignee: Oldcastle Precast, Inc.
    Inventor: Nguyen Thai Dang
  • Publication number: 20140138387
    Abstract: A subgrade vault system with a locking lid assembly is provided. Specifically, a subgrade vault suitable for housing utility and similar equipment is provided, the vault comprising a main body portion, a cap, and a lid that may be selectively secured with one or more rotatable locking mechanisms to prevent or deter unauthorized access to vault contents.
    Type: Application
    Filed: November 15, 2013
    Publication date: May 22, 2014
    Applicant: Oldcastle Precast, Inc.
    Inventor: Nguyen Thai Dang
  • Publication number: 20130248534
    Abstract: A nut configured to threadably engage an external thread of a bolt is provided. The nut generally comprises an upper portion that defines a first thread, a lower portion that defines a second thread, and a sidewall portion that connects the upper portion and the lower portion. The upper portion may be separated from the lower portion by a gap, and the sidewall portion may include a first sidewall spaced apart from a second sidewall.
    Type: Application
    Filed: March 27, 2013
    Publication date: September 26, 2013
    Inventor: Nguyen Thai Dang
  • Patent number: 7009513
    Abstract: A signal to warn of the open condition of a sub-grade vault whose lid may be open or missing. A spring-loaded placard is held down in the vault by a closed lid and raises above the opening by its own stored energy when the lid is open or missing.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: March 7, 2006
    Assignee: Carson Industries, LLC
    Inventor: Nguyen Thai Dang
  • Patent number: 6899240
    Abstract: A subgrade vault to provide an enclosed housing for utility connections. The housing is made of a moldable material with a reinforcing skirt at one end and a seat in the other. A lid is received in the seat to close its upper end. A clip is optionally provided for fastening the lid to the housing body that can be clipped on the body and engaged by a fastener carried by the lid.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: May 31, 2005
    Assignee: Carson Industries LLC
    Inventors: Nguyen Thai Dang, Reilly Flynn
  • Patent number: D841279
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: February 19, 2019
    Assignee: OLDCASTLE PRECAST, INC.
    Inventors: Eric Freeman, Nguyen Thai Dang