Patent ID: 7984560
Filing Date: 2011-07-26
Classification: G01B

Abstract:
1. A method of measuring an interior diameter of a bore, the method comprising the steps of: placing a predetermined quantity of a quick setting adhesive on a first component of an expandible gauge at a location that will still overlap with a second component of the expandible gauge when outer ends of the first and the second components of the expandible gauge are moved apart by a distance corresponding to a diameter of a bore to be measured; inserting the expandible gauge into a tool hole in a bore bar; using a C-clip to retain the expandible gauge within a partially compressed state prior to inserting the expandible gauge within the bore to be measured; removing the C-clip prior to sliding the bore bar into the bore so that the tool hole and the expandible gauge are located within the bore to be measured; allowing the expandible gauge to expand so that the outer ends of the first and the second components of the expandible gauge are moved apart by a distance corresponding to a diameter of the bore to be measured; allowing the quick setting adhesive to bond the first and the second components of the expandible gauge to one another; sliding the bore bar out of the bore until the expandible gauge can be removed from the tool hole; and determining the diameter of the bore by measuring the distance between the outer ends of the first and the second components of the expandible gauge.