Powered lifting station for and method for lifting a slab foundation
US10450715B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 29, 2018 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Oct 29, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G13/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A technician positions a form with a threaded aperture on a pier. Concrete is poured around the form to create a slab foundation. A fixture is then placed on the slab foundation, the fixture having a polygonal anti-rotation member that inserts into a polygonal upper end of the form. The fixture has an upward extending fixture stop member. A threaded rod with a tool adapter on its upper end is screwed into the threaded aperture. The adapter has an adapter stop member extending laterally relative to the fixture stop member. A power tool rotates the adapter to lift the slab foundation until the adapter stop member swings into contact with the fixture stop member. The technician then removes the adapter, places the adapter stop member adjacent an opposite side of the fixture stop member, then again rotates the adapter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.