Low profile greeting card speaker
US8300873B2 · kind B2 · utility
0Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2010 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Sep 25, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R5/023
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A low profile miniature speaker configured for use in greeting cards such as sound generating greeting cards and other novelties. The thickness of the speaker is minimized while maintaining the sound quality and increasing strength. The speaker magnet is counter-sunk into the housing of the speaker, thereby decreasing overall thickness. The speaker is configured with concentric ribs that radiate outward from the center of the circular speaker. The ribs reinforce the plastic housing and increase the structural strength of the speaker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.