LandOfFree - US Patents - Listing for Earth working

Earth working – With drive means for tool or cleaner – Tool mounted for lateral shifting

Precision weeding machine for row crops

Earth working – Draft – pitch or ground level responsive depth control

Prescision hoe opener with swing link between cylinder and...

Earth working – Rolling – rotating or orbitally moving tool – Paired press rims

Press wheels for seed drills

Earth working – With ground support vertically adjustable relative to frame – Power operated adjustment

Pressure and depth control in agricultural implement

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

Pressure control circuit for a combination of a reversible ploug

Earth working – Automatic power control

Pressure relieving circuit for a series cylinder depth control

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

Primary tillage unit with reduced disturbance of surface soil an

Earth working – Automatic power control – Draft responsive

Process of setting the length of an upper steering arm

Earth working – Mounting for pushed tool at end of motor vehicle – Transversely mounted blade

Protecting compactor axles, seals and wheel bearings from wire w

Earth working – Mounting for pushed tool at end of motor vehicle – Transversely mounted blade

Protective arrangement for a piston rod of a hydraulic cylinder

Earth working – Rolling – rotating or orbitally moving tool

Protective surround for packer wheels

Earth working – Guided by walking attendant; supported – propelled – or held... – Guided or propelled by walking attendant and with ground...

Pull plow with pull handles and runners and automobile selective

Earth working – With drive means for tool or cleaner – Vibrating tool

Pulverizer

Earth working – Mounting for pushed tool at end of motor vehicle – Transversely mounted blade

Pushbeam to blade hinge connection

Earth working – Tool – standard or connection – Subsoilers

Pyramidal shaped, hardened insert for an agricultural tool