System and methods for concrete slab foundation repair
US10961682B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Jan 14, 2020 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Jan 14, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D2300/002
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present disclosure includes systems, devices, and methods for correcting foundation heave. Some systems may include a compressed air source configured to propel air having a relative humidity that is less than or equal to 30 percent and one or more air injection devices each configured to be disposed within an earth formation to deliver the air. Some air injection devices include an elongated body having: a length that is greater than or equal to 3 feet, a sidewall that defines a conduit extending along a longitudinal axis of the elongated body, the conduit being configured to be in fluid communication with the compressed air source, and a plurality of perforations, each extending through the sidewall and in fluid communication with the conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.