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US 2024/0308126 A1Published application
Concrete dowel placement system and method of making the same
AssigneeShaw & Sons, Inc.
InventorRonald D. Shaw
Life of this patent
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AssigneeShaw & Sons, Inc.
InventorRonald D. Shaw
Estimating the term…
A concrete dowel placement system and methods for making the same. The system allows for accurate and easy substantially-parallel or parallel placement of slip dowels within sections of concrete so that adjacent sections of concrete may be allowed to undergo thermal expansion and contraction while remaining in a common plane without cracking or faulting. The system includes a coupler and a sheath. The sheath is configured to be slidably extensible over the coupler and may be held to the coupler by friction. An outer surface of the sheath may be textured. Additionally, a method of constructing the concrete dowel placement system includes extruding material to form two tubes of different sizes. The tubes are then attached to each other, then material is extruded or injection molded to form a sheath. Alternatively, construction may include extruding material to form a tube, then removing some of the material from the tube in order to form a coupler.
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A concrete dowel placement system for use with a concrete form, the concrete dowel placement system comprising:
The concrete dowel placement system recited in claim 31, wherein the closed end portion of the sheath is crimped.
The concrete dowel placement system recited in claim 31, wherein the textured outer surface of the sheath includes raised ribs.
The concrete dowel placement system recited in claim 33, wherein the raised ribs extend linearly along the sheath.
The concrete dowel placement system recited in claim 31, wherein:
The concrete dowel placement system recited in claim 35, wherein the first tubular element includes a plurality of splines extending longitudinally along the inner sleeve.
The concrete dowel placement system recited in claim 31, wherein the textured outer surface of the sheath includes a plurality of dimples.
A concrete dowel placement system comprising:
The concrete dowel placement system of claim 38, wherein the second end portion defines a uniform outer diameter between the intermediate surface and the second end surface.
The concrete dowel placement system of claim 39, wherein the first end portion defines a uniform outer diameter between the first end surface and the second end portion.
Dependencies are inferred from the claim text.