Deformable ball seat and method
US7469744B2 · kind B2 · utility
17Cited by
6References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2007 |
| Grant date | Dec 30, 2008 |
| Priority date | — |
| Expiry date | Mar 9, 2027 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B23/0413
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Disclosed herein is a disappearing ball seat. The disappearing ball seat includes, a tubular member having an inside dimension, and a restricted dimension portion of the tubular member dimensioned to prevent passage of a tripping ball therethrough, the restricted dimension portion being reconfigurable to a dimension capable of passing the tripping ball therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.