Pressure lock for jars
US9181770B2 · kind B2 · utility
0Cited by
12References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2012 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Oct 23, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B31/113
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Embodiments disclosed herein relate to a jar including the following: a mandrel; an outer housing slidably disposed about the mandrel; a ball stop housing disposed below the outer housing; a lower sub disposed below the ball stop housing; and a ball stop assembly disposed in the ball stop housing. The ball stop assembly includes a ball stop pivotally disposed in the ball stop assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.