Apparatus and method for lifting tilt-up wall constructions
US4930269A · kind A · utility
34Cited by
10References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1989 |
| Grant date | Jun 5, 1990 |
| Priority date | — |
| Expiry date | Mar 22, 2009 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G21/142
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An improved insert anchor assembly which provides a lifting clevis is disclosed. A novel void former comprising a body and plug to completely surround the lifting clevis is also disclosed. An improved hoisting attachment capable of complimentable receipt within the recess created by the void former is further provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.