Annular detachable rubber probe sidewall contact device
US11702934B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Dec 9, 2021 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | Dec 16, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An annular detachable rubber probe sidewall contact device includes: a body which is columnar, wherein a high-pressure output oil path and a high-pressure retracting oil path are arranged in the body; a sidewall contact arm comprising multiple polar plates which are symmetrically distributed on an external circumference of the body, wherein each of the polar plates is movably installed on the body through a piston rod, and the piston rod is perpendicular to the body; the body has a piston cavity for accommodating the piston rod, and the piston cavity communicates with both the high-pressure output oil path and the high-pressure retracting oil path; and a sampling pipe, wherein one end of the sampling pipe is connected to the polar plates, and the other end of the sampling pipe communicates with a sampling channel in the body through a sampling cavity in the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.