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System for removal of immobilized soil from a lawn aeration device with hollow tines Disclosure Number: IPCOM000238257D
Publication Date: 2014-Aug-12
Document File: 2 page(s) / 29K

Publishing Venue

The Prior Art Database


Disclosed is a method to push lodged plugs out of the tines of a lawn aeration device.

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System for removal of immobilized soil from a lawn aeration device with hollow tines

Grass lawns benefit from a periodic aeration process, which removes small cylindrical sections of the soil (i.e. plugs). Typically, aeration is performed using a machine that contains optimally spaced rows of spikes, or tines, that rotate on a drum as the machine is pulled or pushed across the lawn. Tines are either solid or hollow. Hollow tines are preferred, providing the additional benefit of reducing the compactness of the soil. As the machine moves across the lawn and the drum rotates, the hollow tines are inserted and removed from the soil. While rotating into the soil, the tines grab and remove a soil plug. During subsequent insertions into the soil, the new plug pushes the previous plug out of the opposite end of the tine.

Some types of soil (e.g., clay) stick to the tine and not exit the machine. On subsequent insertions into the soil, a tine with an immobile soil plug then compresses the new soil instead of removing it. This undesirable action nullifies the benefit of the hollow tine. It causes the hollow tine aerator to operate as if it has solid tines.

The only method available to remove an immobile soil plug from a hollow tine is to stop the aeration process and manually insert an object into the hollow tine to forcibly remove the plug. This additional process wastes time. If used in a powered device, it also wastes fuel. The net result is an increase in cost. A mec...