Collapsible flotation device

  • US 7,097,524 B2
  • Filed: 11/18/2002
  • Issued: 08/29/2006
  • Est. Priority Date: 10/10/2000
  • Status: Expired due to Term
First Claim
Patent Images

1. A device, comprising:

  • a spring configured to form a closed loop, the spring being moveable between a coiled configuration when the spring is collapsed and an uncoiled configuration when the spring is expanded, the spring defining an interior area within at least a portion of the closed loop when the spring is in the uncoiled configuration;

    a membrane disposed within the interior area; and

    an inflatable bladder being coupled to and disposed circumferentially about at least a portion of the spring, the device being configured to support a body weight of a user.

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