Rock sample fixing device with three-jaw chuck for cyclic tension and compression test
US9500574B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2016 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Feb 4, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0447
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A rock sample fixing device with a three-jaw chuck for cyclic tension and compression testing including: a lower clamp and an upper clamp; the lower clamp including a lower connector connected to a loading base at a bottom of a testing machine, a lower end cap for fixing samples, a lower chain connecting the lower connector and the lower end cap, a first central position-limit mechanism, a second central position-limit mechanism, and a first hydraulic mechanism; the upper clamp including an upper connector connected to a loading base at a top of the testing machine, an upper end cap for fixing samples, an upper chain connecting the upper connector and the upper end cap, a third central position-limit mechanism, a fourth central position-limit mechanism, and a second hydraulic mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.