Testing machine grip
US4194402A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 1978 |
| Grant date | Mar 25, 1980 |
| Priority date | — |
| Expiry date | Aug 31, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N3/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A grip for a materials testing machine comprises a housing, first and second wedge members within the housing, the first wedge member having a gripping surface defining a test-specimen-receiving aperture and the second wedge member having an aperture for receiving the first wedge member, the wedge members being movable with respect to each other, and each of the wedge members having an inclined portion directed oppositely to the inclined portion of the other wedge member, and means for preloading the wedge members to cause them to move with respect to each other, whereby the wedge members interact to exert a gripping force on a test specimen through the first wedge member's gripping surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.