Core sampling apparatus and container transfer apparatus
US9376879B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 16, 2013 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | Dec 13, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B25/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Provided is a core sampling apparatus which maintains the internal pressure after the core drilling.The core sampling apparatus includes a barrel part, a container which is movably disposed in the barrel part and maintains the sampled core, a ball valve to prevent a fluid from inflowing and outflowing between an inside and an outside of the barrel part in a closed state thereof, a first seal member which seals a space between the barrel part and the ball valve, a second seal member which seals a space between the container and the barrel part, a locking mechanism which locks a state in which the ball valve is sealed by the first seal member, and an inflowing mechanism configured to inflow the fluid only in a direction to an internal space of the closed barrel part by the first seal member and the second seal member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.