Patent ID: 8136303
Filing Date: 2012-03-20
Classification: E04H,Y02A,Y02B,Y10S

Abstract:
1. A protective shelter, comprising: an enclosure having an opening for ingress and egress, a sidewall, a roof, a floor coupled to the sidewall, and at least one support that elevates the floor from a substrate; a peripheral skirt extending toward the substrate to form a substantially enclosed sub-floor region bounded by the peripheral skirt and the floor; a plurality of air ducts communicating between the substantially enclosed sub-floor region and an exterior region of the enclosure, wherein each of the plurality of air ducts houses a valve that permits airflow from the substantially enclosed sub-floor region to the exterior region and resists airflow from the exterior region to the substantially enclosed sub-floor region; and a stabilizer coupled to the enclosure, wherein the stabilizer is horizontally extendable from the sidewall of the enclosure to brace the enclosure against the substrate about the protective shelter in an extended position and is further retractable from the extended position.