Method of molding an acoustical cabinet grille frame
US5888439A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1997 |
| Grant date | Mar 30, 1999 |
| Priority date | — |
| Expiry date | Jul 17, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/023
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A unitary or one-piece acoustical cabinet grille frame and a method for making the one-piece grille frame. In the unitary acoustical cabinet grille frame a sound-transmissible fabric is integrally bonded or fused to serrations in a slot within the shaped plastic face. In the method for manufacturing the one-piece acoustical cabinet grille frame, a sound-transmissible fabric is placed over a shaped plastic face. A heated fusion blade having the configuration of the slot is placed over the sound-transmissible fabric. The fabric is forced into contact with the plastic serrations in the slot and the plastic serrations are plasticated or melted. The sound-transmissible fabric is then fused with the plastic. Finally, the heated fusion blade is removed from the slot and the plastic is allowed to cool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.