Patents by Inventor David S. Zuniga

David S. Zuniga 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: 11850769
    Abstract: A mobile volumetric concrete mixing system includes a suction system that vacuums up trench spoils while a trench is being cut. These trench spoils are then screened on-site for particle size to be reused and mixed with water, cement, and/or other admixtures at an auger mixer to form a backfill mixture. This backfill mixture may then be loaded into a hopper that continuously agitates the mixture so that the mixture does not harden before pouring. The agitating hopper is coupled to a discharge chute of the auger mixer and includes one or more augers disposed at various orientations that the backfill mixture is channeled through. From the agitating hopper, the backfill mixture is channeled to an applicator that moves along the trench and that enables the mixture to be quickly poured into the trench with little clean-up required.
    Type: Grant
    Filed: October 5, 2021
    Date of Patent: December 26, 2023
    Assignee: J&P Invesco LLC
    Inventors: Paul A. Karam, Henry J. Karam, Gabriel J. Leyva, Stanley R. Peters, David S. Zuniga, Carlos Medina
  • Patent number: 11173630
    Abstract: A mobile volumetric concrete mixing system includes a suction system that vacuums up trench spoils while a trench is being cut. These trench spoils are then screened on-site for particle size to be reused and mixed with water, cement, and/or other admixtures at an auger mixer to form a backfill mixture. This backfill mixture may then be loaded into a hopper that continuously agitates the mixture so that the mixture does not harden before pouring. The agitating hopper is coupled to a discharge chute of the auger mixer and includes one or more augers disposed at various orientations that the backfill mixture is channeled through. From the agitating hopper, the backfill mixture is channeled to an applicator that moves along the trench and that enables the mixture to be quickly poured into the trench with little clean-up required.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: November 16, 2021
    Assignee: J&P INVESCO LLC
    Inventors: Paul A. Karam, Henry J. Karam, Gabriel J. Leyva, Stanley R. Peters, David S. Zuniga, Carlos Medina
  • Patent number: 11168460
    Abstract: A machine for backfilling pavement material into a trench defined within a pavement surface includes a frame defining a longitudinal axis and having at least one wheel. The frame being configured to move along the pavement surface. A hopper supported on the frame and including an inlet opening configured to receive pavement material and an outlet opening configured to discharge pavement material into the trench. The machine also includes a compactor supported on the frame and aligned with the hopper along the longitudinal axis. The compactor is configured to compact the discharged pavement material within the trench.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: November 9, 2021
    Assignee: J&P INVESCO LLC
    Inventors: Paul A. Karam, Carlos Medina, Stanley R. Peters, David S. Zuniga
  • Patent number: 10688687
    Abstract: A mobile volumetric concrete mixing system includes a suction system that vacuums up trench spoils while a trench is being cut. These trench spoils are then screened on-site for particle size to be reused and mixed with water, cement, and/or other admixtures at an auger mixer to form a backfill mixture. This backfill mixture may then be loaded into a hopper that continuously agitates the mixture so that the mixture does not harden before pouring. The agitating hopper is coupled to a discharge chute of the auger mixer and includes one or more augers disposed at various orientations that the backfill mixture is channeled through. From the agitating hopper, the backfill mixture is channeled to an applicator that moves along the trench and that enables the mixture to be quickly poured into the trench with little clean-up required.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: June 23, 2020
    Assignee: J&P INVESCO LLC
    Inventors: Paul A. Karam, Henry J. Karam, Gabriel J. Leyva, Stanley R. Peters, David S. Zuniga, Carlos Medina
  • Patent number: 10443211
    Abstract: A machine for backfilling pavement material into a trench defined within a pavement surface includes a frame defining a longitudinal axis and having at least one wheel. The frame being configured to move along the pavement surface. A hopper supported on the frame and including an inlet opening configured to receive pavement material and an outlet opening configured to discharge pavement material into the trench. The machine also includes a compactor supported on the frame and aligned with the hopper along the longitudinal axis. The compactor is configured to compact the discharged pavement material within the trench.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: October 15, 2019
    Assignee: MK-1 CONSTRUCTION SERVICES, LLC
    Inventors: Paul A. Karam, Carlos Medina, Stanley R. Peters, David S. Zuniga
  • Publication number: 20180313059
    Abstract: A machine for backfilling pavement material into a trench defined within a pavement surface includes a frame defining a longitudinal axis and having at least one wheel. The frame being configured to move along the pavement surface. A hopper supported on the frame and including an inlet opening configured to receive pavement material and an outlet opening configured to discharge pavement material into the trench. The machine also includes a compactor supported on the frame and aligned with the hopper along the longitudinal axis. The compactor is configured to compact the discharged pavement material within the trench.
    Type: Application
    Filed: April 30, 2018
    Publication date: November 1, 2018
    Inventors: Paul A. Karam, Carlos Medina, Stanley R. Peters, David S. Zuniga
  • Publication number: 20180126592
    Abstract: A mobile volumetric concrete mixing system includes a suction system that vacuums up trench spoils while a trench is being cut. These trench spoils are then screened on-site for particle size to be reused and mixed with water, cement, and/or other admixtures at an auger mixer to form a backfill mixture. This backfill mixture may then be loaded into a hopper that continuously agitates the mixture so that the mixture does not harden before pouring. The agitating hopper is coupled to a discharge chute of the auger mixer and includes one or more augers disposed at various orientations that the backfill mixture is channeled through. From the agitating hopper, the backfill mixture is channeled to an applicator that moves along the trench and that enables the mixture to be quickly poured into the trench with little clean-up required.
    Type: Application
    Filed: November 6, 2017
    Publication date: May 10, 2018
    Inventors: Paul A. Karam, Henry J. Karam, Gabriel J. Leyva, Stanley R. Peters, David S. Zuniga, Carlos Medina