SYSTEM AND METHOD FOR MONITORING WEIGHT OF MATERIAL IN RESERVOIR

摘要

So as to accurately measure the consumption of material from a reservoir to a high degree of precision during dispensing, and when calibration of the measurement device cannot be reliably performed, the invention proposes an apparatus and a method for measuring a quantity of material to be dispensed. The dispensing apparatus has a dispensing unit for dispensing at least part of the material; a reservoir containing the material to be dispensed; connectors between the reservoir and the dispensing unit; a scale under the reservoir, the scale being for connection to a processor for processing electronic signals from the scale and for converting the signals into a weight measurement; and tubes inserted into the reservoir, the tubes carrying material into and from the reservoir, the tubes being inserted into the reservoir by means of one of the following : i. through a flexible membrane surrounding the connectors, ii. with flexible tube sections between the connectors and the dispensing unit, and iii. through a reservoir cap, the cap sliding relative to the reservoir.

主权项

1. Method of making a dispensing apparatus for measuring a quantity of material to be dispensed,
the dispensing apparatus having a dispensing unit for dispensing at least part of the material, the dispensing apparatus having a reservoir containing the material to be dispensed, the dispensing apparatus further having connectors between the reservoir and the dispensing unit, and the method including the steps of: placing a scale under the reservoir, the scale being for connection to a processor for processing electronic signals from the scale and for converting the signals into a weight measurement; and inserting tubes into the reservoir, the tubes carrying material into and from the reservoir, wherein inserting the tubes into the reservoir takes place by means of one of the following: i. through a flexible membrane surrounding the connectors, ii. with flexible tube sections between the connectors and the dispensing unit, and iii. through a reservoir cap, the cap sliding relative to the reservoir.