Patent ID: 7862875
Filing Date: 2011-01-04
Classification: F16C,F16N,Y10T

Abstract:
1. A disk for insertion into an enclosed space; said disk comprising: a non-metallic body having an outer diameter and a first cross-sectional area; a hole through an interior region of said body; said disk of a flexibility to bend to a second cross-sectional area less than said first cross-sectional area; a top portion of said disk tapering from a first thickness at a center region of said disk to a second thickness at a peripheral region of said disk, said first thickness greater than said second thickness; and a bottom portion of said disk tapering from said first thickness at a center region of said disk to said second thickness at a peripheral region of said disk, said first thickness greater than said second thickness; and said disk having a plurality of cross sectional variations on both said top and bottom portions of said disk spaced apart at differing radial distances from said hole; and spaced apart to substantially the outer diameter of said body.