Back to results
US 12,212,125 B2Granted
Stub-up providing combination wireway and electrical box
OwnerMartin J. Stantoninventor
Life of this patent
Estimating the term…
Abstract
A stub-up is provided for being anchored to concrete slab flooring in which conduit is embedded and through which electrical wiring may be extended. The stub-up comprises a one-piece hollow body having an upper end providing an electrical box and a lower end providing a base permitting the hollow body to be anchored to an underlying concrete slab in an upstanding position. The hollow body provides a wireway for electrical wiring from the slab to the electrical box. Wall structures and methods are also disclosed.
Claims12
A building structure, comprising:
- a concrete slab floor in which an in-slab conduit is embedded for the passage of electrical wiring therethrough, the in-slab conduit has a bell end adjacent an upper surface of the concrete slab floor;
- a wall formed on the concrete slab floor such that the bell end of the in-slab conduit is located within the wall;
- and
- a stub-up anchored to the concrete slab floor within the wall over the bell end of the in-slab conduit, the stub-up comprising a hollow body having a front wall, a rear wall, an opposed pair of sidewalls, an upper end providing an integral electrical box, and a lower end providing a base anchored to the upper surface of the concrete slab floor such that the stub-up is in an upstanding position,
- wherein the front, rear, and opposed pair of sidewalls of the hollow body define an enclosed wireway extending within the hollow body for electrical wiring from the bell end of the in-slab conduit to the electrical box of the stub-up, and
- wherein spacing between the opposed pair of sidewalls increases along a length of the hollow body adjacent the lower end such that the wireway at the lower end is larger than the wireway at the upper end and the lower end of the hollow body is larger than the upper end of the hollow body thereby permitting a predetermined amount of lateral adjustment of the stub-up relative to the floor to position the electrical box at a desired location within a wall.
3 more elements
A method of installing a conduit stub-up, comprising the steps of:
- providing a one-piece hollow body having a front wall, a rear wall, an opposed pair of sidewalls, an upper end providing an electrical box, and a lower end providing a base such that the front, rear, and opposed pair of sidewalls of the hollow body define an enclosed wireway extending within the hollow body for electrical wiring from an underlying concrete slab to the electrical box;
- positioning the hollow body on a surface of a concrete slab over an exposed bell end of conduit embedded in the concrete slab for the passage of electrical wiring therethrough;
- anchoring the lower end of the hollow body to the concrete slab so as to position the electrical box at a desired location above the surface of the concrete slab;
- and
- constructing a studded wall or masonry wall such that the hollow body is located within the wall;
- wherein spacing between the opposed pair of sidewalls increases along a length of the hollow body adjacent the lower end such that the wireway at the lower end is larger than the wireway at the upper end and the lower end of the hollow body is larger than the upper end of the hollow body thereby permitting a predetermined amount of lateral adjustment of the stub-up relative to the floor during said positioning step.
3 more elements
Dependencies are inferred from the claim text.