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US 12,577,737 B2Granted
Concrete slab joint forming system and method
AssigneeIllinois Tool Works Inc.
InventorDarrell A. Wiatrowski
Life of this patent
Estimating the term…
Abstract
A concrete slab joint forming system and method for forming a joint between adjacent concrete slabs. In various embodiments, the concrete slab joint forming system includes a concrete slab joint former, an extension connector, a cross intersection connector, a tee intersection connector, an end connector, a field cut connector, and/or any combination of any quantity of these components.
Claims16
A concrete slab joint former formed from a polymer and comprising:
- a load transfer tongue former having a top edge and a bottom edge, the load transfer tongue former including an upstanding waveform having a plurality of tongue forming concrete receipt sections that are each connected to another one of the tongue forming concrete receipt sections by a section connector, wherein each of the section connectors defines an upright substrate fastener receiver configured to receive a fastener to connect the concrete slab joint former to a substrate on which adjacent concrete slabs will be positioned;
- and
- a load transfer lip former having a top surface and a bottom surface, wherein the bottom surface of the load transfer lip former is connected to the top edge of the load transfer tongue former along the entire top edge of the load transfer tongue former and the top edge of the load transfer tongue former does not extend above the load transfer lip former, wherein the load transfer tongue former and the load transfer lip former are shaped to form opposing load transfer lips and opposing load transfer tongues in the adjacent concrete slabs, such that the opposing load transfer lips and opposing load transfer tongues are engageable to transfer forces between the adjacent concrete slabs.
A concrete slab joint former comprising:
- a load transfer tongue former having a top edge and a bottom edge and including an upstanding waveform having a plurality of tongue forming concrete receipt sections, the plurality of tongue forming concrete receipt sections are each connected to another one of the tongue forming concrete receipt sections by a section connector, wherein each of the section connectors defines an upright substrate fastener receiver configured to receive a fastener to connect the concrete slab joint former to a substrate on which the concrete slabs will be positioned;
- and
- a load transfer lip former including a central section connected to the top of the load transfer tongue former, a first end connection section including a locking member portion and a locking member receipt portion, and a second end connection section including a locking member portion and a locking member receipt portion,
- wherein the top edge of the load transfer tongue former does not extend above the load transfer lip former,
- wherein the locking member portion and the locking member receipt portion of the first end connection section are separate and spaced apart longitudinally from the locking member portion and the locking member receipt portion of the first second connection,
- wherein the locking member portion of the first end connection section is separate and spaced apart transversely from the locking member receipt portion of the first end connection section,
- wherein the locking member portion of the second end connection section is separate and spaced apart transversely from the locking member receipt portion of the second end connection section, and
- wherein the load transfer tongue former and the load transfer lip former are shaped to form opposing load transfer lips and opposing load transfer tongues in adjacent concrete slabs, such that the opposing load transfer lips and opposing load transfer tongues are engageable to transfer forces between the adjacent concrete slabs.
5 more elements
A concrete slab joint former comprising:
- a load transfer tongue former having a top edge and a bottom edge and including an upstanding waveform having a plurality of tongue forming concrete receipt sections connected to another one of the tongue forming concrete receipt sections by a section connector, wherein each of the section connectors defines an upright substrate fastener receiver configured to receive a fastener to connect the concrete slab joint former to a substrate on which the concrete slabs will be positioned;
- and
- a load transfer lip former, wherein the top edge of the load transfer tongue former does not extend above the load transfer lip former, wherein the load transfer tongue former and the load transfer lip former are shaped to form opposing load transfer lips and opposing load transfer tongues in adjacent concrete slabs, such that the opposing load transfer lips and opposing load transfer tongues are engageable to transfer forces between the adjacent concrete slabs.
Dependencies are inferred from the claim text.