Patent ID: 7735273

Claim:
A form system for forming a structural element in situ in an earthen hole, comprising: a support member for placement within the earthen hole; an eccentric disk member disposed on top of the support member and defining an offset aperture with the support member configured for supporting the eccentric disk member in spaced relationship relative to a floor surface of the earthen hole; a lower vertical form system disposed on top of the eccentric disk member, wherein the lower vertical form system includes a wall member having an outer face and an inner face, wherein the wall member defines a throughbore extending from a first end of the lower vertical form system to a second end of the lower vertical form system and wherein the throughbore and the offset aperture at least partially overlap to permit a curable material introduced into an open and upper end of the lower vertical form system to flow by gravity into and through the throughbore and through the offset aperture to envelope the support member in situ; and an upper vertical form system disposed on a surface of the lower vertical form system, wherein the upper vertical form system includes a wall member having an outer face and an inner face, wherein the wall member defines a throughbore extending from a first end of the upper vertical form system to a second end of the upper vertical form system, wherein at least a portion of the throughbore of the lower vertical form system and the throughbore of the upper vertical form system are coaxially aligned to permit the curable material to pass therethrough.