Patent ID: 7284674

Claim:
A double-layer vacuum container, comprising: an outer container; an inner container disposed inside the outer container; the inner container and the outer container including a vacuum space between the inner container and the outer container forming a metal double-layer container; the outer container having a wall portion defining an outer container aperture; the inner container having a bridging member extending therefrom and to the outer container so as to extend through the outer container aperture in a bridging manner; the outer container supporting the bridging member with the bridging member being externally exposed via the outer container aperture of the wall portion to an area exterior to the outer container; the bridging member extending from the inner container, through the outer container aperture and beyond the wall portion defining the outer container aperture with radial support thereof being provided by the outer container; a cover member for externally covering the wall portion of the outer container through which the bridging member is exposed and for sealing a space inside the cover member and a space between the inner container and the outer container in a vacuum state by virtue of a seal between the cover member and the outer container; and the outer container including a supporting member having a cylindrical wall with portions provided thereon supporting the bridging member at a plurality of positions around a bridging member axis without establishing contact around an entire circumference of the bridging member.