LandOfFree - US Patents - Listing for Earth working

Earth working – Automatic power control – Land leveller type

Grade indicator for excavation operations

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

Grade leveling device

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

Grader

Earth working – Scraper between front and rear ground supports of vehicle – Push frame for scrapers

Grader

Earth working – Scraper between front and rear ground supports of vehicle – Push frame for scrapers

Grader attachment for a loader

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

Grader attachment for a skid steer

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

Grader attachment for a skid steer vehicle

Earth working – Tool forward of rear of motor vehicle

Grader attachment for tractors

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

Grader blade actuator

Earth working – Scraper supports narrow depending tool

Grader blade assembly and pick therefor

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

Grader blade attachment for small tractors

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

Grader blade having a pressurized float position

Earth working – Tool – standard or connection – Tool is transversely elongated blade

Grader blade with casting/insert assembly on leading edge

Earth working – Tool – standard or connection – Tool is transversely elongated blade

Grader blade with tiered inserts on leading edge

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

Grader circle and beam assembly

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

Grader circle assembly

Earth working – Scraper between front and rear ground supports of vehicle – Push frame for scrapers

Grading and dozing attachment for a tractor

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

Grading attachment

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

Grading attachment for a loader