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System for the prevention of fire, water or flue gas and the like from propagating along cables

  • US 5,067,676 A
  • Filed: 04/10/1990
  • Issued: 11/26/1991
  • Est. Priority Date: 04/10/1990
  • Status: Expired due to Term
First Claim
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1. A safety chute system for the prevention of fire, water, or gas from propagating along cables contained in an open top channel shaped lead-through chute passing through a wall, said safety chute system comprising:

  • (a) an open top channel shaped housing positioned in spaced surrounding relation with said lead-through chute externally of said wall and with the open top of the lead-through chute facing outwardly of the open top of the safety chute;

    (b) at least one sealing body of fire resisting material removably positioned in the space between the two chutes; and

    (c) cover means for covering the open top of the safety chute to fully enclose the lead-through chute therein.

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