Cover grate for well-site cellars
US11274527B1 · kind B1 · utility
0Cited by
7References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2017 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Jun 4, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/0021
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system and method for protecting workers, vehicles, and well-heads by enclosing well-site cellars with a series of framed plates. Each plate is perforated and configured for lifting with holes for hoisting the plates. Each plate is lipped to be retained by longitudinal edges of the cellar. A plurality of plates supports a platform for supporting a pipe wrangler adjacent a cellar based wellbore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.