Earth working – Mast type hitch – Including blade – scraper – or smoother
Patent
1984-01-18
1986-02-25
Johnson, Richard J.
Earth working
Mast type hitch
Including blade, scraper, or smoother
1726845, 172776, E01C 1922
Patent
active
045723010
ABSTRACT:
An improved tractor pulled earth mover is shown. The improved earth mover is a two-bladed earth scraper having two parallel blades mounted between two supporting side plates. The side plates define a level of ground with respect to which the earth grader is dragged. The side plates have a supporting structure including a mounting for a standard three point hitch for a tractor to permit manipulation, application, dragging and removal of the earth grader. Between the two side plates are located two parallel rigidly mounted blades having three settable depths found specifically advantageous for grading respectively loose sand, coarse aggregates such as rocks, and compacted dirt. The invention discloses a particularly advantageous geometric relationship between the blades and among the blades for optimum grading effectiveness. In operation, the improved earth grader is mounted by fastening to a three point hitch of a standard farm tractor, is held by the existing three point hitch apparatus of the standard farm tractor in contact with the ground and is dragged behind the farm tractor to provide a particularly uniform smooth graded surface over numerous terrain variants.
REFERENCES:
patent: 1509189 (1924-09-01), Carlson
patent: 1755631 (1930-04-01), Burnett
patent: 1838570 (1931-12-01), Pridgen
patent: 2620716 (1952-12-01), Ciancio
patent: 2815591 (1957-12-01), Mattingly
patent: 4320988 (1982-03-01), Seal
Ivy J. Foret Associates, Inc.
Johnson Richard J.
LandOfFree
Adjustable spreader-grader does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Adjustable spreader-grader, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adjustable spreader-grader will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1008341