US 12,241,567 B2
System and method for protection of under-slab utilities from changes in soil volume
Benchmark Harris, Aledo, TX (US)
Filed by Benchmark Harris, Aledo, TX (US)
Filed on Jan. 16, 2023, as Appl. No. 18/097,391.
Application 18/097,391 is a continuation of application No. 17/901,524, filed on Sep. 1, 2022.
Prior Publication US 2024/0077149 A1, Mar. 7, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. F16L 1/028 (2006.01); F16L 1/06 (2006.01); F16L 3/14 (2006.01); H02G 1/06 (2006.01)
CPC F16L 1/028 (2013.01) [F16L 1/06 (2013.01); F16L 3/14 (2013.01); H02G 1/06 (2013.01)] 30 Claims
OG exemplary drawing
 
14. A method of isolating under-slab utilities and under-slab portions of hanger assemblies from a subgrade under a slab of a slab-on-voidform foundation, wherein said utilities are installed before concrete of said slab is poured, comprising tie following steps:
A. First:
i) installing one or more temporary support apparatuses that are supported by a subgrade and configured to support one or more hanger assemblies;
ii) wherein said one or more hanger assemblies are configured to suspend one or more segments of a utility; and
wherein said one or more hanger assemblies and said one or more segments of of a utility are not in contact with a subgrade;
iii) installing void forms over a subgrade wherein said voidforms are configured to not be supported by said one or more segments of a utility;
iv) transferring support of said one or more banger assemblies from said one or more temporary support apparatuses to said voidforms; and
B. Second, pouring the concrete of the slab of the slab-on-voidform foundation over said one or more segments of a utility.