LandOfFree - US Patents - Listing for Earth working

Earth working – With actuator adapted to lift tool for transport on wheeled... – Servo-motor forces tool down

Implement with resiliently mounted coulter gangs

Earth working – With drive means for tool or cleaner – With deflector or shield for thrown material

Implement with side screening plates and soil roller

Earth working – Plural relatively movable tools – Plural tool groups relatively vertically movable because of...

Implement with tool frame selectively lockable in vertical posit

Earth working – Plural wheeled implements – Outrigged implement adjustable inwardly

Implement with two stage folding wing

Earth working – Plural wheeled implements – Outrigged implement adjustable inwardly

Implement with wing lift including toggle links and roller

Earth working – With drive means for tool or cleaner – With deflector or shield for thrown material

Implements with side screening plates

Earth working – Miscellaneous

Improvements in frame of winged agricultural implement

Earth working – Rolling – rotating or orbitally moving tool – With spring means other than for detent

Independent and biased cultivator support

Earth working – With indicating or sighting means

Indicating apparatus for a coupling

Earth working – Mast type hitch

Innovative hitch system with hydraulic pump

Earth working – Mast type hitch

Innovative hitch system with hydraulic pump

Earth working – Tool – standard or connection – With add-on cutting or wearing element applied directly...

Insert for board

Earth working – Automatic power control – Land leveller type

Integrated civil engineering and earthmoving system

Earth working – Diverse tools – Including spring formed tool or standard

Integrated soil cultivating apparatus

Earth working – Automatic power control

Intelligent attachment to a power tool

Earth working – Automatic power control

Intelligent attachment to a power tool

Earth working – Automatic power control – Draft responsive

Interface system for a towed implement

Earth working – Alternating for right or left hand operation – Tool shifted for opposite throw

Invertible plow construction

Earth working – With drive means for tool or cleaner – Subsurface shaft or bar

Irrigation furrow and raised seed bed forming machine