Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
Patent
1988-07-18
1989-12-19
Haroian, Harry N.
Geometrical instruments
Indicator of direction of force traversing natural media
Level or plumb, terrestrial gravitation responsive
33291, 33333, G01C 906, B60Q 152
Patent
active
048873594
ABSTRACT:
A level sensor usable in a vehicle leveling and stabilizing apparatus particularly adapted for use with a motor home to level and stabilize the vehicle upon irregular terrain preparatory to camping or such activity. The apparatus includes a plurality of jack stand assemblies, one associated with each vehicle quadrant. Level sensors are connected to the motor vehicle to indicate level or off-level condition from front to rear and from side to side. A control panel within the vehicle carries the power unit controls and level indicators lamps. The level sensor includes a plate like pendulum suspended within a housing and constrained for back and forth pivotal movement in a fixed path. Electrical contacts are disposed on either side of the pendulum for making or breaking an electrical circuit responsive to pivotal movement of a pendulum as occurs when the housing is placed in an off level condition.
REFERENCES:
patent: 3669409 (1972-06-01), Eranosian
patent: 3962693 (1976-06-01), Schamblin
patent: 4760649 (1988-08-01), Preston
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