Patent ID: 6168487
Filing Date: 2001-01-02
Classification: B63C

Abstract:
An inflatable structure comprising: an inflatable body; an inflation gas source in the form of a liquified inflation gas cylinder located externally of said inflatable body; and a gas distribution system connected to said gas cylinder, said gas distribution system including an internal pressure resistant hose system extending internally through said inflatable body; wherein said internal pressure resistant hose system is a separate member inserted into said inflatable body, has at least one hose with an inlet extending through a wall of said inflatable body for receiving liquified inflation gas from said liquified inflation gas cylinder and a plurality of outlet openings spaced along the length of the hose for distributing liquified inflation gas into said inflatable body; and wherein said at least one hose has a diameter and said plurality of outlets have a number and size which are coordinated to the size of an outlet from the liquified inflation gas cylinder as a means for preventing an evaporative freezing of the liquified inflation gas.