Stackable loudspeakers
US11153680B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2020 |
| Grant date | Oct 19, 2021 |
| Priority date | — |
| Expiry date | Feb 13, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2430/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A loudspeaker includes a housing that has a plurality of walls, which together define an acoustic cavity. An electro-acoustic transducer is mounted to a front wall of the housing, and a motion axis of the electro-acoustic transducer is offset from a centroid of the front wall. The loudspeaker is configured to be stacked with an other loudspeaker of identical construction in a first configuration such that the stacked loudspeakers radiate acoustic energy to produce an omnidirectional radiation pattern; and in a second configuration such that the stacked loudspeakers radiate acoustic energy to produce a cardioid radiation pattern. The loudspeaker includes keyed features which do not interlock and thereby inhibit stacking when the loudspeaker is in a first orientation relative to the other loudspeaker, and which interlock to allow stacking when the loudspeaker is in a second orientation relative to the other loudspeaker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.