发明授权
- 专利标题: Acoustic protective glazing for a vehicle
- 专利标题(中): 用于车辆的防护玻璃
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申请号: US301023申请日: 1994-09-06
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公开(公告)号: US5478615A公开(公告)日: 1995-12-26
- 发明人: Marc Rehfeld , Michel Canaud
- 申请人: Marc Rehfeld , Michel Canaud
- 申请人地址: FRX Courbevoie
- 专利权人: Saint Gobain Vitrage International
- 当前专利权人: Saint Gobain Vitrage International
- 当前专利权人地址: FRX Courbevoie
- 优先权: FRX8903137 19890310
- 主分类号: E06B3/66
- IPC分类号: E06B3/66 ; B32B17/10 ; B60J1/00 ; C03C27/06 ; C03C27/12 ; E06B3/67 ; E06B5/20 ; E06B3/24 ; B32B7/02 ; B60J1/02
摘要:
An acoustic glazing intended for land transportation vehicles and including first and second glass sheets separated by an interlayer region, wherein the acoustic transmission loss differs at most by 5 dB from a figure increasing of 9 dB per octave from 800 to 2000 Hz and of 3 dB per octave above that. As examples, double glazings or laminated glazings are presented featuring an interlayer with a pronounced damping. The acoustic glazing will then operate to effectively eliminate aerodynamic noises in moving vehicles.
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