Vertical measurement system

Details Vertical measurement system Vertical measurement system

1992-12-22

1994-05-03

Noland, Tom

Measuring and testing

Hydraulic altimeter

37413, G01C 500, E02F 328

Patent

active

053076982

ABSTRACT:
The pressure atop a fluid filled flexible column, with the top end in a fixed position, is electronically measured and the result is utilized to indicate the vertical distance between points of interest. Associated electronics plus a suitable display, indicates the vertical distance between the points. As the lower end of the flexible fluid column is moved, the display continuously indicates the vertical distance relative to a reference point. The points of interest (one being a reference point) are measured by placing the opposite end of the flexible column on those points. As applied to a backhoe or excavator, the fluid filled flexible column is adhered to the boom and stick (major moving members of the equipment) and thereby furnishes the equipment operator the vertical position of the bucket (cutting edge of the equipment) compared to an established reference. The system continuously displays the relative vertical position of the bucket without the operator having to actuate any switch or valve. The display furnishes direct information to the operator, no manual calculations are required.

REFERENCES:
patent: 2851799 (1958-09-01), Meents et al.
patent: 3236535 (1966-02-01), Barber
patent: 3494202 (1970-02-01), Comey
patent: 3724278 (1973-04-01), Harland
patent: 3779084 (1973-12-01), Nilsson
patent: 3815423 (1974-06-01), Gearhart
patent: 4356639 (1982-11-01), Opazo
patent: 4452078 (1984-06-01), Formanek et al.
patent: 5167155 (1992-12-01), Rodgers

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