Hardness tester with a loading structure of the indenter independent of the stress frame connecting the indenter to the anvil
US7454960B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 26, 2003 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Feb 23, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0037
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A hardness tester of a relatively large “cantilevering” and/or designed for permitting application of relatively large loads to the indenter may be constructed in a much slander and lighter manner by employing a loading mechanism based on the use of a second or auxiliary loading arm pivotally anchored to the frame of the tester and therefore completely independent of the stress structure of reference contained in the frame of the tester, which mechanical connects the anvil, on which the test object is placed, to the indenter. The load, applied to said second auxiliary arm is transmitted to the indenter carrying arm of the reference stress structure of the tester by unrestrained abutment of a rolling bearing solidly mounted on one of the two arms on a surface of the other arm. Along the trajectory of movement of the tip of the indenter toward the anvil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.