发明名称 |
Respirator module with speech transmission and exhalation valve |
摘要 |
A respirator speech transmitter and exhalation valve module comprising a resilient exhalation valve having a low airflow resistance for exhalation but providing a secure seal against inadvertent inhalation through the exhalation valve module. An exhalation airflow channel is formed between a module body on the outside of the channel and a conical airflow guide and the exhalation valve on the inside of the channel. The exhalation airflow channel is in the form of an amplification horn. The airflow channel produces a smooth airflow for unrestricted exhalation and high intelligibility of a user's speech. The module includes a drinking conduit for selectively fluidly connecting a mouthpiece in the respirator to a beverage container and further includes an electrical communication block with internal and external fittings for connecting a microphone in the mask to a radio or amplifier carried by the mask user.
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申请公布号 |
US2005022819(A1) |
申请公布日期 |
2005.02.03 |
申请号 |
US20040484342 |
申请日期 |
2004.01.16 |
申请人 |
CAPON ANDREW;MACLEAN TIM JOHN |
发明人 |
CAPON ANDREW;MACLEAN TIM JOHN |
分类号 |
A62B7/10;A62B18/02;A62B18/08;A62B18/10;A62B19/00;(IPC1-7):A62B7/10 |
主分类号 |
A62B7/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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