US 12,220,838 B2
Device and method for forming voids in concrete
Raelene Marie Rossart, Port Ludlow, WA (US)
Assigned to Raise the Bar Detailing, Port Ludlow, WA (US)
Appl. No. 17/255,040
Filed by Raise the Bar Detailing, Port Ludlow, WA (US)
PCT Filed Jun. 19, 2019, PCT No. PCT/US2019/037982
§ 371(c)(1), (2) Date Dec. 22, 2020,
PCT Pub. No. WO2019/246259, PCT Pub. Date Dec. 26, 2019.
Claims priority of provisional application 62/688,844, filed on Jun. 22, 2018.
Prior Publication US 2021/0245394 A1, Aug. 12, 2021
Int. Cl. B28B 7/16 (2006.01); B28B 7/28 (2006.01); B28B 23/02 (2006.01)
CPC B28B 7/162 (2013.01) [B28B 7/28 (2013.01); B28B 23/022 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A device for forming a void in concrete, comprising:
a single base having a square shape with opposing flat and planar surfaces and a plurality of holes through the opposing flat and planar surfaces, each of the holes having a size and a shape to receive a fastener for coupling the base to a piece of formwork, the base having a width; and
a single elongate member extending perpendicular from the base and centered with respect to the base as a single, unitary, integral component with the base, the elongate member having a shape and a size to create the void when the concrete cures around the elongate member and the elongate member is removed from the cured concrete, the void having a size and a shape to receive a reinforcing bar, the elongate member having a length greater than the width of the base and wherein the elongate member is a solid body having a constant circular cross section along an entire length of the elongate member.