Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
Patent
1991-05-20
1992-08-04
Haroian, Harry N.
Geometrical instruments
Indicator of direction of force traversing natural media
Level or plumb, terrestrial gravitation responsive
33379, G01C 900
Patent
active
051347806
ABSTRACT:
An inclinometer 20 includes a module 22 which is mounted to a rail 32. The rail 32 has a hollow I-shaped cross-section which affords substantial resistance to torsional and bending loads about the longitudinal axis 34 of the inclinometer 20. The rail 32 and in particular a first end 36 of the I-shaped cross-section includes first and second curves 48, 50 which define lobes which provide a rail design more suitable for gripping and placement by the user.
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Photograph of STABILA Box I-Beam Levels with cap end removed and pages from a STABILA catalog showing box levels.
Picture of Tajima level with the end cap removed.
Bayley Brian J.
Butler Andrew G.
Reeder Kevin J.
Seipp III Edwin A.
Wharton Blake R.
Haroian Harry N.
Wedge Innovations, Inc.
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