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Communication apparatus for hostile environments

  • US 4,491,699 A
  • Filed: 04/15/1981
  • Issued: 01/01/1985
  • Est. Priority Date: 04/15/1981
  • Status: Expired due to Fees
First Claim
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1. Communication apparatus for use with facial covering comprising:

  • a. first microphone means for mounting relative to such facial covering for use by a wearer of said facial covering;

    b. transmitter means;

    c. external speaker means;

    d. connection means, including cable means and connector means, whereby the output of said first microphone means may be communicated to said external speaker means and to said transmitter means;

    e. second microphone means external to said facial covering; and

    f. receptacle means included in said transmitter means for receiving said cable and connector means from said first microphone means;

    g. wherein said receptacle means is movable between a first configuration, in which said receptacle means does not receive said cable and connector means and does provide communication between said second microphone means and said transmitter means, and a second configuration in which said receptacle means receives said cable and connector means and interrupts said communication from said second microphone means to said transmitter means.

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