Patent ID: 7475700

Claim:
A portable shelter comprising: a plurality of support arches, each arch comprising first and second end portions and first and second arched segments continuous with the first and second end portions respectively; the first and second arched segments of each support arch being pivotally coupled to one another at an apex of the arch such that the end portions of each support arch are foldable against one another; a first base member pivotally coupling each first end portion thereon such that the first end portion is be arranged for pivotal movement about a respective pivot axis such that: each first end portion is offset in a radial direction in relation to the respective pivot axis from the first end portions of the other support arches; and each first end portion is offset in an axial direction in relation to the respective pivot axis from the first end portions of the other support arches; a second base member pivotally coupling each second end portion thereon so as to be arranged for pivotal movement about a respective pivot axis such that: each second end portion is offset in a radial direction in relation to the respective pivot axis from the second end portions of the other support arches; and each second end portion is offset in an axial direction in relation to the respective pivot axis from the second end portions of the other support arches; the support arches being pivotal between a first position in which all of the support arches lay flat in a common plane so as to be nested within one another and a second position in which the end portions of each support arch are unfolded and spaced apart from one another and the support arches are angularly offset from one another about the respective pivot axes thereof to form a domed structure; and a cover of flexible material arranged to span the support arches in the second position such that the domed structure is arranged to be enclosed by the cover.