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Life raft canopy for stabilizing ballast cavity

  • US 10,538,300 B2
  • Filed: 08/18/2017
  • Issued: 01/21/2020
  • Est. Priority Date: 08/18/2017
  • Status: Active Grant
First Claim
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1. A life raft comprising:

  • a base comprising a first side and a second side;

    a first canopy coupled to the first side of the base and configured to extend across the first side of the base to form a first chamber defined between the first side of the base and the first canopy;

    a second canopy coupled to the second side of the base and configured to extend across the second side of the base to form a second chamber defined between the second side of the base and the second canopy;

    wherein a first plurality of fill ports are defined in the first canopy and a second plurality of fill ports are defined in the second canopy, wherein the first plurality of fill ports extend through the first canopy and the second plurality of fill ports extend through the second canopy, wherein;

    in response to the life raft being deployed with the first chamber disposed below the base, the first plurality of fill ports are open to the first chamber such that the first chamber functions as a stabilizing ballast cavity and the second plurality of fill ports are closed such that the second chamber functions as a passenger compartment;

    in response to the life raft being deployed with the second chamber disposed below the base, the second plurality of fill ports are open to the second chamber such that the second chamber functions as the stabilizing ballast cavity and the first plurality of fill ports are closed such that the first chamber functions as a passenger compartment;

    wherein each fill port of the first plurality of fill ports and the second plurality of fill ports has a cross-sectional area between about 7 in2 (45 cm2) and about 28 in2 (180 cm2); and

    in response to deployment of the life raft, fill ports of the passenger compartment are configured to close and fill ports of the stabilizing ballast are configured to open.

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