Single mode levitation and translation
US4736815A · kind A · utility
8Cited by
16References
13Claims
0Family size
Inventors
Key dates
| Filing date | Oct 18, 1985 |
| Grant date | Apr 12, 1988 |
| Priority date | — |
| Expiry date | Oct 18, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K15/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An apparatus is described for acoustically levitating an object within a chamber by the application of acoustic energy of a single frequency resonant mode, which enables smooth movement of the object and suppresses unwanted levitation modes that would urge the object to a different levitation position. A plunger forms one end of the chamber, and the frequency changes as the plunger moves. Acoustic energy is applied to opposite sides of the chamber, with the acoustic energy on opposite sides being substantially 180.degree. out of phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.