Fike Corporation

Paul H Kohne

Gary M Bond

Sean P Titus

Kevin Montgomery

Shawn Thompson

Vishal Agrawal

Bon F Shaw

Bradford T Stilwell

John K Schaefer

An emergency communication system that is capable of broadcasting a live message to a specific zone of a protected structure, recording the live transmission, and repeating the recorded message to the same protected zone. In certain embodiments configured to protect multiple zones, the system further permits broadcast of a second live message to another zone of the structure, recording the second live broadcast, and repeating the second recorded message in the same zone to which the message was broadcast live. The system includes hardware such as a processing element and speaker assemblies and a computer program for instructing the processing element to carry out the transmission, recording, and re-broadcasting of messages through the speaker assemblies.

Emergency communication system

This invention relates to a method of converting Halon-based fire suppression systems by substituting HFC 125 for the Halon without the need for changing the in place existing distribution piping. An amount of HFC 125 greater than the amount of Halon utilized in the fire suppression system is provided, which is under a pressure to effect exhaustion of the HFC 125 of the system within a time range exceeding about 10 seconds and up to about 25 seconds and which meets the standard fire extinguishing requirements for Class A and Class B fires. An existing fire suppression system is analyzed for flow characteristics to find Tof that system. The greater quantity Cof HFC 125 required for the retrofitted system is determined by the formula=((&#x2212;10)/(2&#xd7;)&#x2212;&#xd7;100) wherein=0.&#xd7;(&#x2212;10)/(/100))+. The method may also be utilized to determine the amount of HFC 125 required for the retrofitted fire suppression system.

Retrofitted non-Halon fire suppression system and method of retrofitting existing Halon based systems

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Blue Springs, MO, United States of America

Paul H Kohne