Method and apparatus for dispensing a substance to a work area

Details Method and apparatus for dispensing a substance to a work area Method and apparatus for dispensing a substance to a work area

1987-04-30

1989-11-07

Rolla, Joseph J.

Dispensing

Processes of dispensing

222 63, 222 64, 222 71, 222626, 222617, 222613, 239156, 239159, 239172, 118679, 118305, 427136, 427421, G01F 1100

Patent

active

048785989

ABSTRACT:
A method and apparatus for dispensing a substance to a work area in which the method includes the steps of determining the quantity of the substance to be dispensed substantially evenly to the work area, calculating the rate of dispensing the substance to the work area for the quantity determined in the determining step to achieve substantially even dispensing, dispensing the substance to the work area at the calculated rate during movement over the work area, and adjusting the rate of dispensing at intervals during such movement to minimize error in such dispensing. The apparatus has a source of the substance to be dispensed, a dispensing mechanism for dispensing the substance from the source to a work area during movement thereover, a control mechanism operable to control the rate of dispensing the substance from the source, and a control system operable to detect the quantity of substance remaining in the source at intervals during movement over the work area and to adjust the rate of such dispensing so that the substance can be substantially evenly dispensed to said work area.

REFERENCES:
patent: 3241976 (1966-03-01), Rank et al.
patent: 3356261 (1967-12-01), Stein
patent: 3807634 (1974-04-01), Vogt
patent: 4012160 (1977-03-01), Parker
patent: 4390304 (1983-06-01), Jacobson, Jr. et al.
patent: 4392611 (1983-07-01), Bachman et al.
patent: 4473319 (1984-09-01), Spangler
patent: 4523280 (1985-06-01), Bachman
patent: 4553702 (1985-11-01), Coffee et al.
Brochure "Bearcat CRC", Bearcat Manufacturing, Inc., 1986.

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