Patent ID: 6477781
Filing Date: 2002-11-12
Classification: G01C

Abstract:
A spirit level, comprising:(a) an elongated main body having first and second sides at a 90Â° angle, (b) a pivotable bubble element in the first side integral with the main body and pivotable about a first axis to change an inclination of the first bubble element relative to a length of the main body, (c) an adjusting bubble element mounted in the second side integral with the main body, wherein a bubble in the adjusting bubble element moves along a second axis perpendicular to the first side and to the length of the main body and parallel with the first axis, wherein pivoting the pivotable bubble element about the first axis and selecting the angle of inclination relative to the length of the main body, aligning the first side of the main body to a vertical plane by centering a bubble in the adjusting bubble element, and maintaining the first side of the main body in the vertical plane while positioning the main body in the selected inclination by centering a bubble in the pivotable bubble element, thereby insuring that the selected inclination of the spirit level is achieved.