Soil aerator assembly

Details Soil aerator assembly Soil aerator assembly

2008-03-11

2008-03-11

Will, Thomas B. (Department: 3671)

Earth working

Lawn aerator or perforator, or plug remover

Earth removing

C172S497000, C172S265000

Reexamination Certificate

active

11416461

ABSTRACT:
In certain embodiments a soil aerator may include a hinged frame assembly that cooperates with one or more weight transferring systems adapted to permit an aeration subassembly to lift off the ground when an aeration tine impacts a hard obstacle such as a rock in the soil. The weight transferring systems may in the preferred embodiments be calibrated so that only minimal upward force, such as that caused by impact of an aeration tine with a rock, may cause the aeration subassembly to lift thereby significantly reducing or preventing damage to the aeration tines and drive assemblies and substantially prolonging the life of the aerator.

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PlanetAir Aerator, “Aerate, Mow, then Putt in just 15 minutes . . . ”, Brochure, PlanetAir Turf Products, LLC—believed to have been publicly available before Aug. 11, 2003.
PlanetAir Aerator, “Innovation that improves and protects your piece of the planet . . . ,” Brochure, PlanetAir Turf Products, LLC—believed to have been publicly available before Aug. 11, 2003.
PlanetAir Aerator, “Aerate. Mow. Play.”, Brochure, PlanetAir Turf Products, LLC—believed to have been publicly available before Aug. 11, 2003.

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