Patent ID: 6173502
Filing Date: 2001-01-16
Classification: G01C,Y10S

Abstract:
A magnetically engagable level sensing apparatus comprising:a level sensing means comprising a rigid level housing having a level exterior flat surface defined between a pair of parallel, opposing, level angled edge surfaces, an acute angle .mu. defined between the level exterior flat surface and each one of the level angled edge surfaces;a magnetic standoff means comprising a rigid standoff housing having a standoff exterior flat surface defined between a pair of parallel, opposing, standoff angled edge surfaces, the acute angle .mu. defined between the standoff exterior flat surface and each one of the standoff angled edge surfaces;such that with the level exterior flat surface in contact with the standoff exterior flat surface the pair of level angled edge surfaces are adjacent to, and facing, the standoff angled edge surfaces;the magnetic standoff means further comprising a clamping means positioned and enabled for applying a force to one of the level angled edge surfaces, thereby causing the level sensing means to move such that the other of the level angled edge surfaces and the level flat surface are wedged between the corresponding one of the standoff angled edge surfaces and the standoff exterior flat surface thereby aligning the level sensing means and the magnetic standoff means.