Open-cell airbag landing device having a closed-cell foundation

An airbag landing device for absorbing an impact of a falling object, comprising:

• an inflatable base structure providing a base of the airbag landing device, the inflatable base structure including at least one inflatable closed-cell chamber configured to sustain a first fill volume of gas during use of the airbag landing device;
• an inflatable top structure disposed vertically on top of the inflatable base structure, the inflatable top structure including an inflatable upstanding wall portion that extends about a periphery of the inflatable top structure to define a central chamber, the upstanding wall portion including at least one air passageway in fluid communication with the central chamber, and at least one inflatable open-cell chamber that is fluidly isolated from the at least one inflatable closed-cell chamber of the inflatable base structure and being configured to sustain a second fill volume of gas, the inflatable top structure including an air inlet configured to receive airflow into the at least one inflatable open-cell chamber and at least one vent port configured to exhaust air out from the at least one inflatable open-cell chamber;
• a top cover disposed over the inflatable top structure to provide a landing surface for the falling object at impact, the top cover being configured to cover the central chamber to form an air pocket therebetween;
• and
• a blower in fluid communication with the air inlet of the inflatable top structure and being configured to inflate the at least one inflatable open-cell chamber and to maintain the second fill volume of gas during use of the airbag landing device;
• wherein upon impact by the falling object, the inflatable top structure exhausts a volume of gas from the air pocket through the at least one air passageway and from the at least one inflatable open-cell chamber through the at least one vent port to vary the second fill volume of the at least one inflatable open-cell chamber while the first fill volume of the at least one inflatable closed-cell chamber is sustained.