Adjustable parallel-guiding mechanism, specifically for a gravimetric measuring instrument
US7851713B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2009 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | Nov 3, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G21/244
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A parallel-guiding mechanism has a vertically movable parallel leg that carries a weighing pan. The movable parallel leg is connected by two essentially horizontal parallel guides to a stationary parallel leg installed in a balance, wherein elastic flexure pivots are formed at the ends of the parallel guides. Incisions that reduce the material strength of the parallel leg in at least one appropriate location define at least one adjustment domain, thus forming a deformation zone which is plastically deformed through application of an adjustment force. In this manner, a corner load error of the parallel-guiding mechanism is corrected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.