Patent ID: 8801510
Filing Date: 2014-08-12
Classification: E21F

Abstract:
1. An inflatable ventilation curtain, comprising: a curtain portion; and an inflatable portion provided around a perimeter of the curtain portion, wherein the inflatable portion includes an inflatable inner layer and an inflatable outer layer attached together, wherein the inflatable inner layer is provided immediately adjacent to an outer perimeter of the curtain portion so as to extend around the entire outer perimeter of the curtain portion, thereby imparting structural support to the curtain portion upon inflation of the inflatable inner layer, and wherein the inflatable outer layer is provided immediately adjacent to, and around at least a part of, an outer perimeter of the inflatable inner layer, wherein the inflatable inner layer and the inflatable outer layer are each gas inflatable, thereby providing two distinct inflatable areas, and wherein a valve is provided between the inflatable inner layer and the inflatable outer layer to facilitate the inflation of the inflatable outer layer via the inflatable inner layer.