Landing collar
US9303482B2 · kind B2 · utility
10Cited by
20References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2014 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | Aug 11, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A landing collar having a housing, a first sleeve configured to receive a lead wiper plug, and a latching mechanism configured to couple the first sleeve to an inner wall of the housing. The latching mechanism including a c-ring coupled to the housing and a landing insert disposed within the c-ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.