Pipeline construction safety platform
US6830127B2 · kind B2 · utility
27Cited by
15References
29Claims
0Family size
Inventor
Key dates
| Filing date | Aug 29, 2002 |
| Grant date | Dec 14, 2004 |
| Priority date | — |
| Expiry date | Aug 29, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04F11/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A buried pipeline construction laser alignment survey platform mountable on manhole sections. The platform has a platform deck and two opposing sets of foldable handrail mounted on the perimeter of the platform deck which are inter-connected by safety chains to complete a safety perimeter. A manhole access in the platform deck has a slideable access cover providing for a closed set-up position, an open access position, and a partially open laser alignment position. One or more sets of anchor pedestals on the bottom of the platform deck provide for securing the platform to manhole sections of one or more diameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.