Earth working – Automatic power control – Land leveller type
Patent
1993-04-01
1994-12-27
Nicholson, Eric K.
Earth working
Automatic power control
Land leveller type
36442407, 356375, 37907, E02F 376
Patent
active
053756630
ABSTRACT:
An earthmoving apparatus and method for grading a tract of land to a desired finish contour wherein a continuously updated contour map is displayed to the operator of the earthmoving apparatus during the grading process is provided. The earthmoving apparatus has a blade of known width for cutting and filling soil of the tract of land. Vertical blade movement and the x and y position of the earthmoving apparatus is continually detected by respective sensors as the earthmoving apparatus traverses the tract of land. An ultrasonic transmitter and receiver detects elevation of the soil, preferably located behind the blade, to provide updated soil elevation information. A computer then uses the aforesaid information to generate a visual representation of a contour map of the tract of land with cut and fill lines thereon. The computer continuously modifies the contour map to reflected changes in the topography of the tract of land as the earthmoving apparatus proceeds with the grading process based on the detected elevation of the soil, the blade width, the x and y position of the apparatus and the desired finish contour.
REFERENCES:
patent: 3494426 (1970-02-01), Studebaker
patent: 3680958 (1972-08-01), Von Bose
patent: 3873226 (1975-03-01), Teach
patent: 3953145 (1976-04-01), Teach
patent: 4107859 (1978-08-01), Keith
patent: 4273196 (1981-06-01), Etsusaki et al.
patent: 4537259 (1985-08-01), Funabashi et al.
patent: 4573124 (1986-02-01), Seiferling
patent: 4630773 (1986-12-01), Ortlip
patent: 4727329 (1988-02-01), Behr
patent: 4733355 (1988-03-01), Davidson et al.
patent: 4740792 (1988-04-01), Sagey et al.
patent: 4775940 (1988-10-01), Nishida et al.
patent: 4807131 (1989-02-01), Clegg
patent: 4818107 (1989-04-01), Ono et al.
patent: 4819053 (1989-04-01), Halavais
patent: 4820041 (1989-04-01), Davidson et al.
patent: 4914593 (1990-04-01), Middleton et al.
patent: 4918608 (1990-04-01), Middleton et al.
patent: 4933853 (1990-06-01), Musil et al.
patent: 5005652 (1991-04-01), Jonnson
patent: 5065326 (1991-11-01), Sahm
patent: 5144317 (1992-09-01), Duddek et al.
patent: 5150310 (1992-09-01), Greenspun et al.
patent: 5174385 (1992-12-01), Shinbo et al.
patent: 5184293 (1993-02-01), Middleton et al.
Nicholson Eric K.
Spectra-Physics Laserplane, Inc.
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