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Method for constructing fire-stop collar assembly and apparatus thereof

  • US 5,058,341 A
  • Filed: 04/17/1990
  • Issued: 10/22/1991
  • Est. Priority Date: 08/31/1989
  • Status: Expired due to Fees
First Claim
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1. A fire-stop collar assembly laterally mountable on a pipe comprising:

  • a broken ring-shaped intumescent collar having a selectively openable, bendable metallic band with first and second ends extending thereabout and being attached thereto so that these members remain attached even when said metallic band is bent open for mounting the fire-stop collar assembly laterally on a pipe, the ring-shaped intumescent collar having at least one longitudinal break line positioned adjacent ends of the metallic band, said metallic band being bendable;

    a fastening means for selectively compressing the metallic band into a tight ring with said first and second ends close together, and for allowing said ends of the metallic band to be separated for opening said fire stop collar assembly for mounting it on a pipe;

    whereby the fire-stop collar assembly can be hinged open as a unit, with said intumescent collar remaining attached to said metallic band, placed about a pipe, and then closed again by the fastening means.

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