Safety system for fluid conduit

  • US 5,357,998 A
  • Filed: 02/19/1993
  • Issued: 10/25/1994
  • Est. Priority Date: 08/23/1990
  • Status: Expired due to Term
First Claim
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1. A safety system for a fluid conduit comprising a flexible conduit having first and second ends,first means at each end of said conduit defining a valve seat, said valve seats normally being a first predetermined distance from each other, and being movable away from each other when said conduit fails,a valve body disposed at each end, said valve seats being disposed between said valve bodies, said valve bodies and said valve seats cooperating to define valves,second means connected to said valve bodies for holding them apart a second distance which is greater than the distance between said valve seats,third means disposed at each of said ends and cooperating with said second means for retaining said valve bodies against movement to permit fluid to flow through said conduit until said conduit fails, andsaid second means is operative when said conduit fails and said valve seats move away from each other to retain said valve bodies at said second distance so that said valve seats move toward said valve bodies and close said valves, or if the distance between said valve seats does not change, to permit said valve bodies to move toward each other so that said valve bodies move toward said valve seats to close said valves.

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