Shoring frame pillar
US5031724A · kind A · utility
15Cited by
9References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 29, 1989 |
| Grant date | Jul 16, 1991 |
| Priority date | — |
| Expiry date | Dec 29, 2009 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G25/065
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A pillar used as part of a shoring, decking or scaffolding frame is made from length of aluminum extrusion having an octagonal periphery with a plurality of internal radial projections whose ends jointly define an unencumbered axial channel dimensioned to receive at either end, the threaded stem of height-adjustment screw-jacks, without need of any screw-jack-mounting sleeves or other screw-jack-centering and holding device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.