Patent ID: 7497142

Claim:
An apparatus for the relative adjustment of a first part and a second part, the apparatus comprising: a plurality of balls disposed in a chamber and substantially filling said chamber: said chamber having an adjustable volume with a reduced volume position in which said balls are substantially arrested and an increased volume position in which said balls are enabled to be rearranged; said balls engaging said second part therebetween and holding said second part fast to the first part in the reduced volume position of said chamber; and wherein, when said volume of said chamber is increased to an increased volume position, the second part is enabled to be moved in a lateral direction of said second part and said balls to thereby be rearranged said balls are disposed in a single layer of balls; said chamber having a first boundary wall extending parallel to said layer of balls and at least said first boundary wall is adjustable for increasing said volume of said chamber; and said chamber further formed with a second boundary wall, the second part passing through the first part and through said second boundary wall, said second boundary wall disposed on the first part parallel to said first adjustable boundary wall, and said first and second boundary walls are commonly movable parallel to said layer of balls when the second part is being moved.