Adjustable tension support band for headset
US4727585A · kind A · utility
43Cited by
5References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 24, 1986 |
| Grant date | Feb 23, 1988 |
| Priority date | — |
| Expiry date | Nov 24, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R5/0335
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatus for adjustably varying the tension intermediate the downwardly depending ends of a spring headband in a headset includes a longitudinally extending spring member having an arcuate shape and radius less than the intermediate portion of the headband, that is disposed on the top of the intermediate portion of the headband and stationarily connected to the headband at one end, a tension adjusting slider is disposed around the headband and the spring member for longitudinal movement so that the tension intermediate the lower ends of the headband is varied as the slider is repositioned.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.