Dispensing – With recorder – register – indicator – signal or exhibitor
Patent
1981-09-15
1984-01-24
Rolla, Joseph J.
Dispensing
With recorder, register, indicator, signal or exhibitor
222 71, 73290V, B67D 516
Patent
active
044271328
ABSTRACT:
A liquid storage and measurement system particularly applicable to the volumetric measurement of siquid hydrocarbon fuel and to the dispensing of the fuel via a fuel dispensing unit, includes a liquid measurement/storage vessel of known dimensions arranged to be partially filled with liquid, e.g. fuel, from a bulk liquid storage tank to provide a liquid/gas interface, a supply system for supplying liquid to the measurement/storage vessel, a discharge system for discharging liquid from the measurement/storage vessel, an ultrasonic transducer for, during continuous discharge of the liquid from the measurement/storage vessel, continually sensing and monitoring the level of the interface during each of a plurality of predetermined time intervals such as to produce an electrical signal indicative of the position of the interface during each predetermined time interval, a signal generating transducer arranged to produce an electrical signal indicative of a reference interface level during each time interval, comparators for comparing the reference and interface signals to provide an indication of the change in position of the interface during successive time intervals and a computing system for relating the known dimensions of the measurement/storage vessel to the sensed interface level to provide a volumetric indication of the liquid being continuously discharged at any instant from the measurement/storage vessel.
REFERENCES:
patent: 2666326 (1947-12-01), Poole et al.
patent: 3603149 (1971-09-01), McKnown
patent: 4223806 (1980-09-01), Buschmann
patent: 4229798 (1980-10-01), Rosie et al.
patent: 4284210 (1981-08-01), Horak
patent: 4346818 (1982-08-01), Bosmiller
Avery-Hardoll Limited
Compton Charles C.
Rolla Joseph J.
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