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US 2007/0176030 A1Published application
Tension control device for mobile irrigation systems
OwnerThomas Korusinventor
Life of this patent
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Abstract
The left and right truss rod assemblies of a truss that supports the span of an irrigation pipeline are bridged by a single sensor device. A movable linear connector in the sensor receives oppositely directed loads from axially spaced members of the two truss rod assemblies and provides a linear motion that can be transmitted to a control device to shut down the system if tension force in the truss becomes excessive. Movement of the linear connector is yieldably resisted by a resilient element, which resistance is overcome if and when the tension force in the truss exceeds a threshold level.
Claims5
In a mobile irrigation system, the improvement comprising:
- a pipeline;
- a truss supporting the pipeline,
- said truss including a first pair of left and right, laterally spaced apart truss members and a second pair of left and right, laterally spaced apart truss members spaced axially from said first pair of truss members;
- and
- a tension sensor interconnecting said first and second pairs of truss members for detecting tension changes in the truss.
2 more elements
Dependencies are inferred from the claim text.