Level monitoring sensor apparatus, solid structure sensor...

Details Level monitoring sensor apparatus, solid structure sensor... Level monitoring sensor apparatus, solid structure sensor...

2005-01-25

2005-01-25

Fulton, Christopher W. (Department: 2859)

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

C033S0010HH, C033SDIG001

Reexamination Certificate

active

06845564

ABSTRACT:
An apparatus for monitoring level variations in a given orientation of a structure, comprises a support portion secured to a structure to be monitored as a function of the given orientation in an adjustable position with respect to the horizon. A balancing arm hangs from the support portion in a resting position with respect to the horizon with one rotational degree of freedom being provided between the support portion and the balancing arm, such that a level variation in the given orientation of the structure causes the balancing arm to tend toward the resting position due to gravitational force A retaining member interrelates the balancing arm to the support portion, the retaining member retaining the balancing arm in the resting position. Sensors are positioned on the retaining member and are wired to a control system to measure strain of the retaining member resulting from the balancing arm tending toward the resting position, to quantify the level variation in the given orientation.

REFERENCES:
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patent: 3444499 (1969-05-01), Lovelace
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patent: 4945347 (1990-07-01), Perry
patent: 20010034948 (2001-11-01), Matsumiya et al.

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