Inflatable ventilation life curtain
AssigneeHeintzmann Corporation (USA)
InventorRodney Howery
Life of this patent
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Abstract
An inflatable ventilation curtain includes a curtain portion and an inflatable portion provided around a perimeter of the curtain portion. The inflatable portion includes an inner layer and an outer layer attached together, wherein the inner layer is provided immediately adjacent to the perimeter of the curtain portion and wherein the outer layer is provided around at least a part of an outer perimeter of the inner layer, thereby providing two distinct inflatable areas.
Claims13
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.
A method of setting up an inflatable ventilation curtain which includes a curtain portion and an inflatable portion provided at a periphery of the curtain portion, comprising:
- spreading out the inflatable ventilation curtain in a predetermined area, so that the curtain portion and the inflatable portion are spread out, wherein the inflatable portion has an inflatable inner layer and an inflatable outer layer;
- after spreading out the inflatable ventilation curtain, raising sides of the inflatable ventilation curtain with raising means so that the inflatable ventilation curtain is raised up to an other predetermined area so as to be in an operative position for inflation;
- and
- after raising the sides, inflating the inflatable portion so that the inflatable portion imparts structural support to the inflatable ventilation curtain which is positioned in the other predetermined area, wherein the inflatable inner layer is a distinct inflatable area from the inflatable outer layer, and the inflatable inner layer is inflated before the inflatable outer layer begins to inflate,
- wherein the inflatable inner layer is provided immediately adjacent to the perimeter of the curtain portion and wherein the inflatable outer layer is provided around at least a part of an outer perimeter of the inflatable inner layer,
- 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.
Dependencies are inferred from the claim text.