LandOfFree - US Patents - Listing for Earth working

Earth working – Rolling – rotating or orbitally moving tool – Tool has circumferentially spaced teeth – tines – blades or...

Dethatcher

Earth working – With drive means for tool or cleaner – Implement with ground support for depth control

Dethatcher apparatus

Earth working – With drive means for tool or cleaner – With non-driven tool

Device and method for clearing trees/bushes and tilling soil

Earth working – Automatic power control – Obstruction sensing type

Device and method for detecting cultivation boundaries and other

Earth working – Processes

Device and method for diverting rolls of sod delivered from conv

Earth working – Lawn aerator or perforator – or plug remover – Earth removing

Device and method for treating the soil by aeration

Earth working – Sod cutter

Device and process for cutting grass sods with a constant...

Earth working – Plural relatively movable tools – Tools relatively adjustable horizontally without causing...

Device for adjusting the distance between soil-working tools

Earth working – Mast type hitch

Device for attaching farm implements to a tractor

Earth working – Convertible; or changeable by disassembly or assembly – To different type of hitch

Device for attaching working machine to vehicle

Earth working – Automatic power control – Draft responsive

Device for automatically lifting and rapidly lowering tractor im

Earth working – Actuator on vehicle for relatively moving parts of trailing... – Actuator on vehicle moves implement ground support...

Device for carrying a load

Earth working – Diverse tools – Rolling and non-rolling

Device for clearing and seeding range land

Earth working – Diverse tools – Second implement follows path of first

Device for collection of debris

Earth working – Diverse tools – Second implement follows path of first

Device for collection of debris

Earth working – Diverse tools – Second implement follows path of first

Device for collection of debris

Earth working – With draft detail – Spring biased hitch

Device for connecting an agricultural implement to a tractor

Earth working – With drive means for tool or cleaner – With specific relationship of mast-type hitch to implement

Device for connecting working implement to tractor

Earth working – Automatic power control

Device for controlling a tractor-pushed agricultural implement