Apparatus for erecting arcuate walls of concrete or the like
US4619433A · kind A · utility
Inventor
Key dates
| Filing date | Sep 11, 1984 |
| Grant date | Oct 28, 1986 |
| Priority date | — |
| Expiry date | Sep 11, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/32368
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Apparatus for erection of arcuate walls of poured concrete has one or more deformable sheathings secured to turnable supports which are movably secured to one another by composite girders having alternating rigid variable-length links and fixed-length connectors which are affixed to the supports. The angular positions of the supports are changed by changing the length of the links. Locking devices are provided to hold the links against angular movement relative to the neighboring connectors when the sheathing assumes the desired shape. The locking devices can constitute separable components or they may be permanently mounted on and/or integrated into the links and/or connectors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.