Entranceway and disaster shelter utilizing the same

Abstract

An entranceway for a disaster shelter and a disaster shelter. The entranceway include a substantially hollow main manway, a hatch dome ring disposed about, and extending outward from, the open top of the main manway; and a hatch dome cover removably attached to the hatch dome ring such that the hatch dome cover forms a weather resistant seal with the hatch dome ring. The exterior surfaces of the preferred hatch dome ring and hatch dome cover are manufactured of an intumescent laminate material. A substantially hollow emergency escape manway is disposed through the main manway wall to allow an alternate point of egress from the shelter in the event that the hatch dome cover is blocked by debris. The preferred entranceway also includes an air filter and a septic tank, each located exterior to the manway such that each may be accessed by a shelterist within the manway. The disaster shelter includes an entranceway, a substantially hollow shelter cell, and a seismic joint joining the entranceway and the shelter cell. The seismic joint is dimensioned to allow the entranceway to move relative to the shelter cell and to maintain a watertight relationship between the entranceway and the shelter cell.

Dependencies are inferred from the claim text.