Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
Patent
1994-11-04
1997-05-06
Will, Thomas B.
Geometrical instruments
Indicator of direction of force traversing natural media
Level or plumb, terrestrial gravitation responsive
33347, 33365, 33333, G01C 900
Patent
active
056259565
ABSTRACT:
A level indicator for a child seat equipped with a rotatable carrying handle rotatably attached thereto, and having a housing in a hub of said pivotal handle with a wall defining an interior region of said hub and an indicator member having an indicator surface. The indicator member is movably received in the interior region and the wall is formed to include a transparent window defined by an edge formed in the wall, the edge being arranged so that the indicator surface is visible through the window when the level indicator is level, with the indicator member moving entirely away from the window edge when the level indicator is not level so that the indicator surface is not visible through the window. The indicator member is disclosed as being a gravity ball that freely rotates in a curved track or a pendulum rotating in the handle.
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Cone, II Richard E.
Fowler Alvin L.
Cosco, Inc.
Will Thomas B.
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