Patent ID: 6209219
Filing Date: 2001-04-03
Classification: G01B,G01C,Y10S

Abstract:
A measuring device comprising:a housing comprising two separate mating halves that cooperate to define an interior chamber;a distance measuring apparatus mounted within said interior chamber and constructed and arranged to measure a distance between a reference point on a reference plane and said housing along a measuring axis that is perpendicular to the reference plane;a focused light-beam source mounted to at least one of said two mating halves of said housing and constructed and arranged to emit a focused light-beam from said housing; anda housing orientation indicator carried by said housing and oriented with respect to said focused light-beam source so as to indicate whether said focused light-beam source is in a level or plumb orientation, so that when said housing orientation indicator provides said level or plumb indication, said focused light-beam is projected from said housing onto a remote surface at a point on the remote surface that is spaced from the reference plane, along an axis that is parallel to the measuring axis, by a distance that is the same as the distance, along the measuring axis, between the reference point on the reference plane and said housing,said housing orientation indicator also being oriented with respect to a housing surface so as to indicate whether a surface upon which said housing surface rests is in a plumb or level orientation.