Method for constructing block for staircase
US6428726B1 · kind B1 · utility
2Cited by
10References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 15, 1999 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | Nov 15, 2019 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04F11/116
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for molding a block for an outdoor staircase stair includes filling a form with zero slump mix, the form having outer walls and a core member which includes a vertically disposed central recess extending into the core from its lower surface, filling the recess in the core member, agitating the filled form and recess, compressing the top of the mix in the form, passing a compression head through the form to transfer the formed mix to a pallet, and then curing the formed mix in a misting kiln.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.