Patent ID: 7594342

Claim:
A spherical vacuum desiccator, comprising: first and second substantially identical hemispherical shells adapted for mutual engagement with each other; each hemispherical shell comprising a body with inner and outer hemispherical surfaces and an engaging region therebetween, a receiving segment and a connecting segment are positioned in a spaced-apart relationship within said engaging region of each said hemispherical shell, whereby, in the assembled condition of the vacuum desiccator said first hemispherical shell is disposed in the inverted position with respect to the second shell so that the inner surfaces of said first and second shells define a substantially hollow operational chamber within the interior of said desiccator having a true spherical configuration; and each said hemispherical shell further comprises first and second clamping regions spaced from each other, each said clamping region consists of first and second supporting walls extending outwardly from the flange and connected by a connecting wall, so that an inner cavity is formed within each clamping region surrounded by supporting and connecting walls, during said pivotal motion of the second hemispherical shell with respect to the first hemispherical shell at least a portion of the connecting segment of the first hemispherical shell is received within the inner cavity of the second hemispherical shell; said first hemispherical shell being formed with at least one port subassembly provided in a central area of a front region thereof, so as to provide access to the substantially hollow operational chamber, a coupling unit extends outwardly from the outer hemispherical surface of the first shell so as to surround said port subassembly.