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    DEVICES, SYSTEMS, AND METHODS FOR CONNECTING CONCRETE STRUCTURAL ELEMENTS
    12.
    发明公开
    DEVICES, SYSTEMS, AND METHODS FOR CONNECTING CONCRETE STRUCTURAL ELEMENTS 审中-公开

    公开(公告)号：US20240254770A1

    公开(公告)日：2024-08-01

    申请号：US18561606

    申请日：2022-05-23

    Applicant: TINDALL CORPORATION

    Inventor： Matthew ALESCH ,  John Michael ROMANO ,  Bryant ZAVITZ ,  Kevin KIRKLEY

    IPC: E04C5/10 ,  F16L25/00

    CPC classification number: E04C5/10 ,  F16L25/0027

    Abstract: Various implementations include a duct coupler including a body, a first and second arm, and a first and second tooth. The body has a first end that faces a first axial direction, a second end that faces a second axial direction, and a wall. The first and second arm each have a fixed end coupled to the second end and free end axially spaced apart from the fixed end. Each of the free ends are resiliently urgable in a radial direction. The first tooth is coupled to the first arm, and the second tooth is coupled to the second arm. The teeth are shaped such that, when the teeth are engaged with a corrugation of a corrugated duct, the teeth allow the duct coupler to move in the first axial direction with less axial force than moving the duct coupler in the second axial direction.

    Concrete voided floor panel
    13.
    发明授权
    Concrete voided floor panel 有权

    公开(公告)号：US11408174B2

    公开(公告)日：2022-08-09

    申请号：US17469097

    申请日：2021-09-08

    Applicant: e.Construct.USA, LLC ,  Tindall Corporation

    Inventor： Maher K. Tadros ,  David Michael Gee ,  Kevin Kirkley ,  Bryant Zavitz

    IPC: E04C2/04 ,  E04C2/52 ,  E04B5/04 ,  E04C2/06 ,  E04C2/34 ,  E04B5/48

    Abstract: A voided floor panel is provided. The voided floor panel includes a pre-cast dome, strands, reinforcing bars, and a slab. The pre-cast dome includes a flange portion, stem portions, and joint portions. The strands are pre-tensioned. The reinforcing bars are inserted through rebar block-outs of the pre-cast dome. The joint portions, the strands, and the reinforcing bars are cast within the slab. The strands improve a resistance of the slab to flexure. The joint portions improve a vertical shear resistance between the slab and the pre-cast dome. The joint portions may include corrugated dovetails for further improving a horizontal shear resistance between the slab and the pre-cast dome.

    PRE-CAST CONCRETE FLOORING SYSTEMS AND METHODS OF USE
    14.
    发明申请
    PRE-CAST CONCRETE FLOORING SYSTEMS AND METHODS OF USE 有权

    公开(公告)号：US20210189722A1

    公开(公告)日：2021-06-24

    申请号：US16491920

    申请日：2018-03-07

    Applicant: North Carolina State University ,  Tindall Corporation

    Inventor： Wayne Place ,  Jianxin Hu ,  Greg Force ,  Bryant Zavitz ,  Kevin Kirkley

    IPC: E04B5/48 ,  E04B5/04 ,  E04B5/08 ,  E04B5/10 ,  F24D5/04

    Abstract: Various implementations include a corrugated concrete floor system that includes a plurality of elongated pre-cast concrete floor support units disposed in a horizontal arrangement relative to each other for each floor of a building. The concrete floor support units are disposed between floors of a multi-story building. The units define a plurality of supply air plenums and return air plenums that are arranged alternately in the sandwich space between each floor. The supply air plenums are in fluid communication with the building level above them, and the return air plenums are in fluid communication with the building level below them. By having the supply-air plenum and the return-air plenum share the volume occupied by concrete floor support units, the height of the sandwich space is reduced.

    METHODS AND APPARATUSES FOR CONNECTING CONCRETE STRUCTURAL ELEMENTS
    18.
    发明申请
    METHODS AND APPARATUSES FOR CONNECTING CONCRETE STRUCTURAL ELEMENTS 审中-公开

    公开(公告)号：US20180363290A1

    公开(公告)日：2018-12-20

    申请号：US16007845

    申请日：2018-06-13

    Applicant: Tindall Corporation

    Inventor： Bryant Zavitz ,  Kevin Kirkley ,  Behnam Naji ,  Chris Sigmond

    IPC: E04B1/41

    CPC classification number: E04C5/10 ,  E04B1/4121

    Abstract: Various implementations include methods and apparatuses for connecting concrete structural elements, such as pre-cast concrete structural elements. In one implementation, an apparatus includes a first concrete structural element into which a first duct is pre-cast, a second concrete structural element into which a second duct is pre-cast, and a duct coupler that couples the first duct in fluid communication with the second duct and prevents adhesive from flowing into the first or second duct when the first and second concrete structural elements are coupled together. In another implementation, a method of forming a concrete structural element includes disposing at least a portion of a duct within a form for receiving poured concrete, disposing a duct holder through an opening in the form and coupling the duct holder with the duct to hold the duct in position within the form during pouring, and removing the duct holder after the concrete hardens.

    METHODS AND APPARATUSES FOR CONSTRUCTING A CONCRETE STRUCTURE
    19.
    发明申请
    METHODS AND APPARATUSES FOR CONSTRUCTING A CONCRETE STRUCTURE 审中-公开

    公开(公告)号：US20180291612A1

    公开(公告)日：2018-10-11

    申请号：US15897830

    申请日：2018-02-15

    Applicant: Tindall Corporation

    Inventor： Bryant Zavitz ,  Kevin Kirkley ,  Chris Sigmon ,  Michael Willis ,  Behnam Naji

    IPC: E04B1/21 ,  E04B1/41 ,  E04B1/58 ,  E04C5/06

    Abstract: Various implementations include methods and apparatuses for constructing a concrete structure. In one implementation, a structure includes a pre-cast concrete column section and a pre-cast concrete beam section. The column section includes an embedded first assembly with a threaded rod, and the beam section includes an embedded second assembly defining a channel for receiving the threaded rod. Grout is fed through a joint between the column and beam sections into the second assembly to couple the threaded rod with the second assembly. The grout is urged through the joint and the second assembly by gravity and by applying vacuum suction to a grout port defined by the second assembly. The grout port extends between the channel of the second assembly and an external face of the beam section.

    Structure including non-structural joint
    20.
    发明授权
    Structure including non-structural joint 有权

    公开(公告)号：US10024306B2

    公开(公告)日：2018-07-17

    申请号：US15435495

    申请日：2017-02-17

    Applicant: Tindall Corporation

    Inventor： Kevin L. Kirkley ,  Bryant A. Zavitz

    IPC: F03D13/20 ,  E04H12/34 ,  E04H12/18 ,  E04H12/16

    Abstract: An assembly includes a first block including a first end; and a second block assembled with the first block at a same height as the first block, the second block including a second end facing the first end of the first block. The first block and the second block are connected to the assembly such that there is no structural connection between the second end of the second block facing the first end of the first block.

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