Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
Patent
1988-08-03
1989-10-31
Cuchlinski, Jr., William A.
Geometrical instruments
Indicator of direction of force traversing natural media
Level or plumb, terrestrial gravitation responsive
33396, 33378, C01C 906, B60Q 152
Patent
active
048767999
ABSTRACT:
A level sensing unit, designed to be incorporated in a carpenter's level, is relatively insensitive to the expansion and contraction of the buoyant fluid, independent of the specific gravity of the fluid, and virtually free of oscillations accompanying a change in liquid orientation. The device can be constructed inexpensively of commonly available materials. The device has a cylindrical float mounted on a centrally positioned axle with a plate extending above the float surfaces and placed normal to the axle. The axle extends between the walls of a sealed housing, and adjacent to the edge of the plate are two electrically conducting strips. At level neither strip contacts the edge of the plate, but when the unit is not at level one or the other strip makes physical and electrical contact.
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Cuchlinski Jr. William A.
Snyder Eugene I.
Will Thomas B.
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