Subterranean emergency shelter
AssigneeGranger Plastics Company
InventorJames Cravens
Life of this patent
Estimating the term…
Abstract
In one embodiment, a shelter includes a base with an interior chamber defined by a bottom wall, a sidewall, and an open upper end. A closure is joined to the base to enclose the chamber. A passageway through the closure facilitates entry into the chamber and exit from the chamber. Rungs disposed in the chamber extend through the passageway to define a stairway. The shelter may also include a door coupled to the passageway. The door can be moved from a closed position covering the passageway to an open position away from the passageway.
Claims15
A subterranean shelter, comprising:
- a base including a chamber defined by a bottom wall, at least one chamber sidewall extending upwardly from said bottom wall, and an open upper end;
- a closure joined to said open upper end of said base to thereby enclose said chamber;
- a passageway through said closure adapted to facilitate entry into said chamber or exit from said chamber;
- pairs of oppositely disposed notches in said chamber and said passageway through said closure, said pairs of notches spaced in a vertical direction and extending through said passageway;
- and
- rungs supported by said respective pairs of notches to define a stairway extending from said chamber through said passage.
A subterranean shelter, comprising:
- a base including a chamber defined by a bottom wall, at least one sidewall extending upwardly from said bottom wall, and an open upper end;
- a closure joined to said open upper end of said base to thereby enclose said chamber;
- a passageway through said closure adapted to facilitate entry into said chamber or exit from said chamber;
- said base having a double-wall construction comprising an outer wall and an inner wall separated by an interior cavity;
- and
- fluid ballast material disposed in said interior cavity.
A subterranean shelter, comprising:
- a base including a chamber defined by a bottom wall, at least one sidewall extending upwardly from said bottom wall, and an open upper end;
- a closure joined to said open upper end of said base to thereby enclose said chamber;
- a passageway through said closure adapted to facilitate entry into said chamber or exit from said chamber;
- said base having a double-wall construction comprising an outer wall and an inner wall separated by an interior cavity;
- and
- a faucet within said chamber and communicating with said interior cavity, said faucet operative to facilitate the withdrawal of fluid material stored in said interior cavity.
Dependencies are inferred from the claim text.