Patent ID: 8413342
Filing Date: 2013-04-09
Classification: G01C

Abstract:
1. In a level including (a) an elongate hollow frame with two opposite sidewalls and top and bottom walls extending between the sidewalls, the bottom wall defining an opening into the frame interior, and (b) a magnet secured at the bottom-wall opening, the improvement comprising a magnet-mounting structure including: first and second magnet-holding members positioning the magnet with respect to the bottom-wall opening, the first magnet-holding member having a first side flange and the second magnet-holding member having a second side flange, each side flange being positioned to extend along one of the opposite sidewalls at an inner surface of the bottom wall; and a locking member pulling the magnet-holding members together such that the side flanges are locked inside the level frame along the opposite sidewalls, thereby mechanically securing the magnet to the level frame.