Compact extendible height container and shelter

A portable, collapsible shelter comprising:

• a) a rigid, hollow container comprising opposed ends, opposed vertical sides, a rigid horizontal top and bottom and four corner rail elements, and wherein said corner rail elements each comprise outer and inner telescopic elements, each said inner element being secured at its upper end to said rigid horizontal top and being reversibly telescopically slidable within said outer element between lowered and extended positions to thereby raise said rigid horizontal top from a lowered position for transport to a raised position for use as the shelter;
• said ends, sides, top and bottom being secured to form the rigid container having a height which is smaller than the standards for ISO Series 1 freight containers when said inner telescopic elements are in said lowered position;
• b) at least one of said vertical sides comprising a pivoting wall portion hingedly connected to said vertical side along a lower edge of said pivoting wall portion to pivot between a closed vertical position and an open horizontal position, said pivoting wall portion having an outer edge,
• and whereby an opening is formed in said vertical side when said pivoting wall portion is in the horizontal position;
• c) means associated with said container and with said pivoting wall portion for releasably securing said pivoting wall portion in said vertical position;
• and further comprising either:
• d) a flexible cover secured to said outer edge of said pivoting wall portion and to an edge of said rigid horizontal top and adapted to be extended from an edge of said horizontal top above said pivoting wall portion while said pivoting wall portion is in said horizontal position and means for supporting said flexible cover above said pivoting wall portion while said pivoting wall portion is in said horizontal position and said inner telescopic element is in said extended position and said rigid horizontal top is thereby in said raised position for use as a shelter;
• or
• e) a flexible fabric cover secured to said outer edge of said pivoting wall portion and secured to said container around said opening formed when said pivoting wall portion is in said horizontal position, and adapted to be supported above said pivoting wall portion when said pivoting wall portion is in said horizontal position and said inner telescopic element is in said extended position and said rigid horizontal top is thereby in said raised position for use as a shelter, thereby forming an enclosed space above said pivoting wall portion open to the interior of said container when said pivoting wall portion is lowered to the horizontal position;
• wherein the shelter further comprises:
• g) power means for reversibly telescopically lowering and extending each said inner element within said outer element;
• h) a spring bolt adjacent each of the four corner rail elements for locking and releasing the outer and inner telescopic elements, the spring bolt controllable by either (i) a central handle disposed at mid points of the opposed ends or the opposed vertical sides or (ii) a lock pin disposed on an inner surface of a cross member adjacent each of the four corner rail elements.