Horizontal forming block with curved side wall for architectural structures
US5553432A · kind A · utility
4Cited by
14References
15Claims
0Family size
Inventor
Key dates
| Filing date | Sep 9, 1994 |
| Grant date | Sep 10, 1996 |
| Priority date | — |
| Expiry date | Sep 9, 2014 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B2002/021
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A curved block formwork element for use in forming structures such as curved cornices, lintels and window sills. The curved block formwork element comprises a substantially rectangular shaped block having two oppositely disposed side walls and two oppositely disposed end walls creating a hollow cavity inside, wherein a first of the side walls comprises a flat surface and a second of the side walls comprises a curved surface; means for vertically interlocking the block with a plurality of rectangular block formwork elements along a top and bottom surface of the block; and means for horizontally interlocking the blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.