Earth working – Automatic power control – Land leveller type
Patent
1983-06-03
1985-06-25
Stouffer, Richard T.
Earth working
Automatic power control
Land leveller type
318649, E02F 376, E02F 385
Patent
active
045248362
ABSTRACT:
The control is mounted on the turntable of a conventional motor grader or similar scraper, in a direction parallel to an axis through the points of attachment to the turntable of the rods of two rams which control the angle of the blade of the scraper to the horizontal. The control is used to hold the blade angle at a first angle when the scraper is moving in one direction and at a second angle when moving in another direction. In the control are two vials mounted side-by-side and adjustable by a motor to be centered at the aforesaid first and second angles. A control box on the cab enables the operator to selectively adjust the electric current of the device to respond to one vial or the other depending on the direction of movement of the scraper. If the blade is off the desired angle, a signal from the vial actuates a hydraulic valve control to energize one or both rams to raise or lower and thus restore the blade to the preselected angle. When the scraper moves in a different direction, the operator switches the control box to bring into the circuit the other vial.
REFERENCES:
patent: 3182410 (1965-05-01), Schiavi
patent: 3602113 (1971-08-01), Davin et al.
patent: 4120364 (1978-10-01), Wooldridge
patent: 4156466 (1979-05-01), Caldwell
patent: 4162708 (1979-07-01), Johnson
patent: 4247809 (1981-01-01), Nessel
Caplan Julian
Reno Energy Systems, Inc.
Stouffer Richard T.
LandOfFree
Scraper with dual-direction blade tilt control does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Scraper with dual-direction blade tilt control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scraper with dual-direction blade tilt control will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-550203