LandOfFree - US Patents - Listing for Earth working

Earth working – With drive means for tool or cleaner – Tool driven about axis transverse to draft line

Mobile, self-propelled crushing machine

Earth working – Tool – standard or connection – Frame-supported blade – scraper – or smoother drawn by vehicle

Modified box scraper system and apparatus with trench...

Earth working – Towed scraper with ground support wheels

Modular and towable farm implement

Earth working – Alternating for right or left hand operation – Axially rotatable implement

Moldboard plow

Earth working – Processes

Moldboard plow apparatus for switching soil strips from one furr

Earth working – Overload shifting – Against spring return device

Moldboard plow trip

Earth working – Scraper between front and rear ground supports of vehicle – Actuator for bodily shifting scraper subframe draft connection

Motor grader

Earth working – Automatic power control

Motor grader and clutch-control method for motor grader

Earth working – Scraper between front and rear ground supports of vehicle – Actuator for bodily shifting scraper subframe draft connection

Motor grader and positioning mechanism for drawbar thereof

Earth working – Processes

Motor grader blade lift and control mechanism and method

Earth working – Scraper between front and rear ground supports of vehicle – Specific actuator between frame and scraper

Motor grader blade mounting and tilt mechanism

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

Motor grader blade retention system

Earth working – Scraper between front and rear ground supports of vehicle

Motor grader blade support with self-retaining wear strips

Earth working – Scraper between front and rear ground supports of vehicle

Motor grader circle drive

Earth working – Scraper between front and rear ground supports of vehicle – Specific actuator between frame and scraper

Motor grader drawbar assembly with fluid-operated cylinders for

Earth working – Scraper between front and rear ground supports of vehicle

Motor grader drawbar assembly with safety clutch mechanism

Earth working – Scraper between front and rear ground supports of vehicle – Specific actuator between frame and scraper

Motor grader having improved guide shoes for circle-mounted impl

Earth working – Scraper between front and rear ground supports of vehicle – With diverse tool or portion

Motor grader having material distribution attachment

Earth working – Scraper between front and rear ground supports of vehicle – Three or more independently operable scraper actuators

Motor grader main frame