Specimen grip, having a grip shell, for use in a materials testing machine
US7793553B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 25, 2008 |
| Grant date | Sep 14, 2010 |
| Priority date | — |
| Expiry date | Mar 27, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A specimen grip assembly which can be used with a relatively light-weight jaw in a materials testing system. The specimen grip assembly illustratively contains a grip shell and a pair of wedge-shaped specimen grips. The shell has a truncated, frusto-pyramidal exterior shape with two outwardly facing inclined surfaces, both inclined at an angle and which matingly abut and slide against complementary inclined interior surfaces of the jaw. The grips are oriented in a recess within the shell such that inclined surfaces of the grips abut against interior complementary surfaces of the shell. The shell, containing the grips and specimen, is suitably positioned within the jaw, with the shell and grips then jacked into a fixed position. The shell substantially eliminates any noticeable compliance from the specimen grips that might otherwise arise from tensile and/or compressive forces applied to the jaw and specimen grip assemblies during a test program.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.