Pressure lock for jars
US9822599B2 · kind B2 · utility
0Cited by
18References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2015 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Oct 14, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B31/113
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A jar includes the following: a mandrel; an outer housing slidably disposed about the mandrel; a low pressure chamber having a first port and formed between the mandrel and the outer housing; a high pressure chamber having a second port and formed between the mandrel and the outer housing; a fluid passage between the first and second port; and a valve disposed in the fluid passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.