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US 9,708,829 B2Granted
Refuge unit
OwnerPhilip David Faigeninventor
Life of this patent
Estimating the term…
Abstract
A refuge unit has an outer structure and an inner structure. The inner structure is rotatable relative to the outer structure about an axis of rotation. The inner structure is capable of accommodating one or more people. The inner structure is biased toward a substantially constant rotational position about the axis such that if the axis lies in horizontal plane, a floor of the inner structure also lies in a horizontal plane. One or more doors are provided at respective opposite entrances to the unit.
Claims17
A refuge unit comprising:
- an outer cylindrical structure and an inner cylindrical structure disposed inside the outer cylindrical structure, the inner cylindrical structure being rotatable relative to the outer cylindrical structure about an axis of rotation;
- the outer cylindrical structure having openings at respective axially opposite ends, the inner cylindrical structure having two doors one of each at respective axial ends of the inner cylindrical structure and aligned with a respective one of said openings, wherein the axis of rotation passes through all of the openings and the doors, the doors being arranged to enable entry to an inside of the inner cylindrical structure;
- wherein the inner cylindrical structure is capable of accommodating one or more people and is biased toward a substantially constant rotational position about the axis of rotation and wherein the unit is configured to enable it to roll on the ground about the axis of rotation.
Dependencies are inferred from the claim text.