Patent ID: 8777050
Filing Date: 2014-07-15
Classification: B29C,B29L,B60K,B65D,F16K

Abstract:
1. A vent assembly and collapsible storage tank, the vent assembly mounted to the collapsible storage tank, including: a flange member of the vent assembly having a hub and a flange extending outwardly from the hub; a top sealing layer of flexible fabric having a hole for receiving the hub and mounted at least partially over the flange and extending outwardly beyond the flange; an intermediate sealing layer of flexible fabric having a hole aligned with the opening in the hub and mounted beneath the flange and extending outwardly there beyond and bonded to the top sealing layer beyond the flange; and a wall of the collapsible storage tank formed from flexible fabric material, the intermediate sealing layer bonded to the wall.