Clamping device for holding a test sample free of any bending moments
US5138887A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 25, 1991 |
| Grant date | Aug 18, 1992 |
| Priority date | — |
| Expiry date | Apr 25, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0017
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A clamping device for holding a sample to be tested in a testing machine is so constructed that an automatic alignment of the clamping device relative to a vertical load application axis is assured to avoid the introduction of undesirable bending moments into the test sample. Thus, tension and/or compression and/or torsion loads can be applied to the test sample without interfering bending moments. For this purpose a clamping shaft is journalled in a support member for journalling about a first axis (9) and the support member is journalled in a mounting buck for journalling about a second axis (13). The mounting buck is secured to the frame of the testing machine. The two journal axes (9, 13) extend perpendicularly to the load application axis (3) of the testing machine. Further, the two journal axes (9, 13) and the load application axis (3) have a common intersection (21).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.