Manufacturing method of diaphragm for use in electroacoustic transducers
US6183674A · kind A · utility
10Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 22, 1999 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Apr 22, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2307/029
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A manufacturing method of diaphragms for use in electroacoustic transducers simultaneously joins an edge and a diaphragm body upon molding the diaphragm body through an injection molding with a set of mating molds for forming the diaphragm body, with the edge of a cell-structure disposed on one of the mating molds, the edge being preliminarily molded and cut into a predetermined shape, and with the other mold mated with the one mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.