Spirit level

Details Spirit level Spirit level

2008-03-12

2009-12-15

Bennett, G. Bradley (Department: 2841)

Geometrical instruments

Straightedge type

Combined with level

C033S404000, C033S379000

Reexamination Certificate

active

07631436

ABSTRACT:
A spirit level (10) includes a profiled body with lateral surfaces (20, 22), end faces or areas (24, 26), and longitudinal surfaces (28, 30) that form measuring surfaces running between the lateral surfaces, which project laterally over the lateral surfaces with their longitudinal edges (32, 34, 36, 38), as well as at least one position sensor, such as a vial (14, 16, 18). In order to carry out a verification of horizontality or verticality not only in the conventional way, but especially also to assist in maintaining intervals in assembled brickwork, it is proposed to provide a uniform series of indentations (46, 48, 50, 52, 54, 56, 58) within at least one longitudinal edge.

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