Geophone spring
US5134593A · kind A · utility
25Cited by
10References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 1991 |
| Grant date | Jul 28, 1992 |
| Priority date | — |
| Expiry date | May 17, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/181
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A spring for a seismometer for suspending one body relative to a fixed reference point within a housing including an outer ring and an inner ring interconnected by a plurality of arcuate legs. Each leg has an inner and an outer edge which may be defined by a plurality of arcs of different radii and distinct centers. The plurality of arcs further divide each leg into an inner section and an outer section of approximately equal length, and a middle section of substantially constant width and thickness. The spring provides an improved spurious resonance over the prior art springs as well as having an improved useful life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.