Twist lock coupling spigot
US8132649B2 · kind B2 · utility
72Cited by
13References
11Claims
0Family size
Inventor
Key dates
| Filing date | Oct 29, 2008 |
| Grant date | Mar 13, 2012 |
| Priority date | — |
| Expiry date | Jul 18, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/551
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A coupling spigot for connecting two scaffold legs one atop the other is designed to use a twist lock for securing the upper scaffold leg to the coupling spigot. A locking collar is fixed to a stop collar of the spigot. The locking collar includes receiving slots for receiving locking projections provided adjacent a bottom edge of the scaffold leg. Locking slots are connected to the receiving slots whereby an upper scaffold leg may be inserted on a coupling spigot of a lower scaffold leg and retained thereon by a twist lock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.