.~ Frame-supported blade, scraper, or smoother drawn by vehicle
DEFINITION
Classification: 172/684.5
Frame-supported blade, scraper, or smoother drawn by vehicle:
(under subclass 681) Apparatus having at least one earth working element mounted on a frame which is wholly or partly supported either on skids, a part of the frame, or by the element itself, and which is adapted to be dragged behind a towing vehicle, and wherein the element has either (a) a substantially vertical working surface adapted to strike off or level the earth, or (b) a substantial area adapted to contact the earth in a horizontal direction to compact or smooth the earth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
4.5, for a scraper which is automatically power-controlled for leveling.
26.5+, for a dragline scraper.
72, for a driven tool followed by a leveling drag or furrow shaper.
189, and 612, for flexible implements including flexible matlike drags.
197, and 199+, for diverse tools, one of which comprises a drag or smoother. 777, for a scraper supporting a narrow depending tool. 779, for a scraper whose position is controlled by a linkage for leveling.
780, and 781+, for a scraper between front and rear vehicle supports.
799.5, for a towed scraper on a wheel-supported frame.
