Stereo speaker system
US4075438A · kind A · utility
Inventor
Key dates
| Filing date | Dec 2, 1976 |
| Grant date | Feb 21, 1978 |
| Priority date | — |
| Expiry date | Dec 2, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R5/023
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A stereo speaker system with two spaced-apart speaker housings is adapted for mounting on the backrest of a chair by attachment thereto with a universal, adjustable mounting bracket. Each speaker housing is adjustably supported on opposite sides of the space occupied by a person's head while sitting in the chair by a support arm adjustably connected to the speaker housing on one end and adjustably connected to the mounting bracket on the opposite end. The mounting bracket has downwardly extending members for gripping the front and rear surfaces of the chair backrest, the space between the front gripping members and the rear gripping members being adustable for removable mounting on the chair and for mounting on a variety of chairs with varying sizes of backrests.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.