Extendable speaker system
US10327054B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2016 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Sep 9, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2205/021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An extendable speaker system is provided with a base and lid that are connected via a plurality of concentric collapsible hollow bodies such as cylinders. A woofer speaker resides in the base. Mid range or tweeter speakers reside in the lid. The lid is displaced away from the base to expand the speaker system, where the extended cylinders provide an airtight seal between the base and lid forming a woofer speaker enclosure therein. Friction seals between the cylinders, a spring residing within the speaker enclosure, and the airtight speaker enclosure itself provide a collective force sufficient to maintain the speaker system in an extended configuration. A port is opened by depressing a button to vent the enclosure to allow for the speaker system to be collapsed. A locking system is provided to releasably maintain the speaker system in a collapsed configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.