Position retention mechanism for maintaining a counter mechanism in an activated position
US8365832B2 · kind B2 · utility
7Cited by
18References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2010 |
| Grant date | Feb 5, 2013 |
| Priority date | — |
| Expiry date | Apr 26, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
To operate a device for use in a well, a counter mechanism is provided that is actuatable by pressure cycles to an active position that allows actuation of the device to a target state. A position retention mechanism is coupled to the counter mechanism to maintain the counter mechanism in the active position once the counter mechanism has been incremented by the pressure cycles to the active position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.