Adjustably positioned phasing plug
US4180710A · kind A · utility
6Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 24, 1978 |
| Grant date | Dec 25, 1979 |
| Priority date | — |
| Expiry date | Aug 24, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatus and method for precisely adjusting the spacing between the phasing plug of a horn type loudspeaker driver and the diaphragm of such loudspeaker. The base of the pole piece is threaded and threadably engages a mating apertured portion of a back plate. A micrometer is employed to adjust the height of the phasing plug above the surface of the top back plate by rotating the phasing plug on its threads. In this manner, spacing between the phasing plug and the diaphragm can be precisely set for each assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.