Patent ID: 7644905

Claim:
A spiral support comprising: a length of material having a counterclockwise turn leading into a transition portion which forms a first reversing portion being a loop transitioning to a length of said material having a clockwise turn leading into another transition portion forming a second reversing portion wherein said loops are along a common axis and said second reversing portion terminates in a length, wherein said first reversing portion is a left to right “L/R” reversing portion which is provided where said counterclockwise turn continues in one direction along the common axis to a neighboring one of said clockwise turns, and said second reversing portion is a right to left “R/L” reversing portion which is provided where each of said clockwise turns continues in the direction to a neighboring one of said counterclockwise turns along the common axis, and wherein seen from along the common axis said L/R reversing portion and said R/L reversing portion protrude from the circumference formed by said counterclockwise turn and said clockwise turn.