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Annulus (firestop)
open-in-new
<h2 id="external-links">External links</h2> <p>External examples of the use of the term. </p> <ul><li><a href="http://www.freepatentsonline.com/6820382.html">Annulus, a term used within a firestop patent</a></li> <li><a href="https://web.archive.org/web/20080828112411/http://www.adfire.com/FS%20products/fs_systems/UL%20FS%20Systems/April%2012%202007%20systems/C-A-J-%2021%20systems/C-AJ-1557_021207.pdf">Annulus, as used in UL System C-AJ-1557 Firestop System, Configuration A</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>"Fire Stop Technologies". firestopstl.com. Retrieved 2024-01-15. <a href="https://firestopstl.com/Definitions.html" target="_blank">https://firestopstl.com/Definitions.html</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> </ol>