A construction anchor apparatus has utility as a safety grip for engagement by construction personnel, and, in addition, a support apparatus for supporting and/or holding construction equipment including ductwork, electrical cables, plumbing, etc. The anchor apparatus is used in conjunction with rebar applied in concrete support walls, floors, ceilings, or other structural elements at a construction site.

Anchors, clutches, and lifting systems are described herein that increase the size of a shear cone within a precast concrete panel without using multiple clutches and without increasing the complexity of the lift system. A shear cone is the volume within the panel that the anchor and clutch pull on when orienting and positioning the precast concrete panel. Anchors described herein encompass a larger volume of the panel in different ways to produce a larger shear cone. Similarly, the clutches described herein have features that allow a clutch to accommodate the improved anchors. As a result, the anchors, clutches, and lifting systems provide a larger shear cone in the panel to increase the load capacity of the lifting system and reduce the likelihood of failure.

A construction anchor apparatus has utility as a safety grip for engagement by construction personnel, and, in addition, a support apparatus for supporting and/or holding construction equipment including ductwork, electrical cables, plumbing, etc. The anchor apparatus is used in conjunction with rebar applied in concrete support walls, floors, ceilings, or other structural elements at a construction site.

A construction anchor apparatus has utility as a safety grip for engagement by construction personnel, and, in addition, a support apparatus for supporting and/or holding construction equipment including ductwork, electrical cables, plumbing, etc. The anchor apparatus is used in conjunction with rebar applied in concrete support walls, floors, ceilings, or other structural elements at a construction site.

A rebar construction and transportation system includes a plurality of rebar members. A jig is provided. Each of the rebar members is positioned in the jig to retain each of the rebar members in a selected pattern. A plurality of first couplers is each removably coupled to an associated one of the rebar members. Each of the first couplers may be selectively coupled to a crane to transport the rebar members. A plurality of second couplers is provided. Each of the second couplers is selectively positioned in an open position and a closed position. Each of the second couplers is positioned around an associated one of the rebar members when the second couplers are positioned in the closed position. Each of the second couplers engages the jig such the jig is retained at the selected point on the rebar members.

The present invention discloses connection systems and methods for cubic structures. The systems include structural members and connecting members, the structural members are configured to interconnect with another structural member by the connecting members, the structural members are provided with accommodating portions for accommodating the connecting members, the structural members include various structural members having different types of interconnection, and the connecting members include various connecting members adapted to the different types of interconnection of the structural members. The methods connect the cubic structures according to the systems. The present invention can be adapted to the connection of cubic structures in various scenarios, thereby promoting development of modular construction.

A construction anchor apparatus has utility as a safety grip for engagement by construction personnel, and, in addition, a support apparatus for supporting and/or holding construction equipment including ductwork, electrical cables, plumbing, etc. The anchor apparatus is used in conjunction with rebar applied in concrete support walls, floors, ceilings, or other structural elements at a construction site.

A rebar construction and transportation system includes a plurality of rebar members. A jig is provided. Each of the rebar members is positioned in the jig to retain each of the rebar members in a selected pattern. A plurality of first couplers is each removably coupled to an associated one of the rebar members. Each of the first couplers may be selectively coupled to a crane to transport the rebar members. A plurality of second couplers is provided. Each of the second couplers is selectively positioned in an open position and a closed position. Each of the second couplers is positioned around an associated one of the rebar members when the second couplers are positioned in the closed position. Each of the second couplers engages the jig such the jig is retained at the selected point on the rebar members.

A recess former is disclosed for use with anchors which are to be cast into a concrete slab. The recess former preferably includes a removable plug and preferably rectangular lugs which engage with corresponding apertures in the attachment head of the lifting anchor and prevent the ingress of cement during casting of the slab. In addition, flaps are preferably provided on the recess former to prevent the sides of the attachment head from being encased in the concrete. Preferably the former is pivoted between open and closed positions and has a slightly V-shaped base which when abutted against a mould or formwork, urges the recess former into the closed position. Furthermore, a recess former is disclosed which stays behind after the casting and remains embedded in the concrete in order to provide a waterproof membrane between the recess and adjacent reinforcing rods thereby preventing corrosion of the reinforcing rods.

A form is provided for positioning an anchor in a castable material, such as concrete, having a core element defining a volume for creating a recess in the castable material, an anchor having one end positioned inside the core element for engaging a security device, such as a cable or chain, and the anchor having another end extending outside the core element, for fixing the anchor in the castable material, and an elongated drain forming member extending from the bottom of the core element to the ground, for creating a passageway for transporting water that collects in the recess.