Tunable vibration noise reducer with spherical element containing tracks
US6435470B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2000 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Sep 22, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/661
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A tunable mass coupled to a body subjected to forced vibrations that reduces the vibration amplitudes of the body in the forced vibration frequency band. The mass includes a container having a plurality of cavities with grooves in the lower surfaces and notched side walls. Each cavity is filled with spherical elements which are restrained by the grooves and notches. The tunable mass is constructed to respond in a spring like manner so that vibration frequencies of the mass are tunable to provide counter vibrations in the forced vibration frequency band. Vibration frequency amplitude reduction is provided by vibrations of the mass that are in phase opposition to the vibrations of the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.