Patent ID: 6338190
Filing Date: 2002-01-15
Classification: G01P,Y10T

Abstract:
A method for precisely spacing one article from another article, said method comprising the steps of:providing an aperture in a first article, the first article having a drive wall at one side of the aperture; providing a second article having a reaction wall located in the aperture opposite the drive wall; touching a preselected surface of the first article to a third article; restraining the second article from moving relative to the third article: providing a fourth article having teeth oriented at a predetermined pitch angle: and moving the fourth article along a transverse axis between the drive and reaction walls, whereupon the teeth tightly abut said drive and reaction walls; wherein said step of moving results in the drive and reaction walls being engaged by the teeth such that the first article is caused to move relative to the second article; and wherein said step of moving results in the first article moving along a longitudinal axis which is perpendicular to the transverse axis a predetermined distance such that the preselected surface is precisely spaced from the third article.