Permanent non-removable insulating type concrete wall forming structure
US4866891A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 16, 1987 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Nov 16, 2007 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B2002/867
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A modular synthetic plastic concrete form structure for forming a concrete wall or free form or an enclosure having a curved corner. One form of the structure includes a pair of modular concrete impervious foamed forming panels each comprised of a series of modular foamed concrete forming sections stacked on top of one another and also disposed in end-to-end relation. The structure further includes a foamed curved corner form structure comprised of a series of arcuately curved corner sections stacked on top of one another providing a radially outer continuous curved corner area for forming a curved concrete corner. The sections each have means on upper and lower edges and at opposite vertical edges of interlocking the section in stacked end-to-end engagement with one another. The panels are positioned in spaced opposed relation. Ties connect the panels in transversely spaced relation and with the panels and the ties being permanently attached with the concrete poured between the panels as a reinforcing and heat insulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.