Novel glass elements for use in balances
US4836314A · kind A · utility
5Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1988 |
| Grant date | Jun 6, 1989 |
| Priority date | — |
| Expiry date | Jul 8, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G3/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Improved shaped glass elements having very low thermal coefficients of elastic modulus are provided for use as measuring means in balances for determining the mass of objects with a high degree of resolution. A particularly preferred form of the invention id fabricated from a glass consisting of 60.6% SiO.sub.2, 14.7% B.sub.2 O.sub.3, 8.94% Al.sub.2 O.sub.3, 4.72% Na.sub.2 O and 10.98% BaO, by weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.