EP0196398A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
A device for delivering metered quantities of liquid products to a utiliser
Assignee: ELTON CHEMICAL SpA
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Filing: 1985-12-17
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Granted: —
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Expires: 2005-12-17
Abstract
Abstract A device for delivering metered quantities of liquid products to a utiliser (8) comprises a plunger-type pump (6) and a pump control means (7) including a programmable memory of any type, such as a memory card by means of which the number of strokes of the plunger of the pump (6) and consequently the quantity of liquid delivered thereby can be determined. The pump (6) is connected at its suction side to a plurality of liquid containers (1) by a network of pipes (2) each having a controllable valve (4) the opening and closing of which can be controlled by the pump control means (7) in dependence on the programme stored in the programmable memory. A typical utiliser (8) for such device is an industrial washing machine which can thus receive metered quantities of liquid detergents and other additives in place of powders used conventionally without recourse to liquid metering devices of other type and greater complexity.
Inventors
- 👤 Eugenio Tosca
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 09:56
CPC Classifications
D; D06; D06F; D06F39/00; D06F39/02; D06F39/022
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
92 words
A device for delivering metered quantities of liquid products to a utiliser (8), characterised by the fact that it comprises a plurality of containers (1) for the said liquid products, a single plunger-type pump (6) of adjustable capacity, and programmable memory means (1) for controlling the operation of the pump whereby to determine the quantity of liquid dispensed by the pump by controlling the number of strokes performed by the pump plunger in accordance with the programme stored in the memory means whereby to dispense a metered quantity of the liquid products.
Claim 2
Independent Claim
92 words
A device for delivering metered quantities of liquid products to a utiliser (8), characterised by the fact that it comprises a plurality of containers (1) for the said liquid products, a single plunger-type pump (6) of adjustable capacity, and programmable memory means (1) for controlling the operation of the pump whereby to determine the quantity of liquid dispensed by the pump by controlling the number of strokes performed by the pump plunger in accordance with the programme stored in the memory means whereby to dispense a metered quantity of the liquid products.
Claim 3
Dependent Claim
80 words
A metering device according to Claim 1 , characterised by the fact that each of the said plurality of containers (1) contains a respective liquid detergent or liquid additive, and into each container extends a dip tube (2) provided with a unidirectional valve (3) at its inlet end: the dip tubes (2) for all the containers (1) being connected via a corresponding number of pneumatic valves (4) to a manifold (5) which leads to the intake of the pump (6).
Claim 4
Dependent Claim
42 words
A metering device according to Claim 2, characterised by the fact that there are further provided means (9, 10) for the introduction of mains water to the manifold (5), the said means comprising a tube (9) controlled by a solenoid valve (10).
Claim 5
Dependent Claim
41 words
A metering device according to any preceding Claim, characterised by the fact that it further comprises means for manually increasing the quantity of each product and/or additive dispensed to the utiliser in dependence on particular requirements without altering the memory means.
Claim 6
Dependent Claim
47 words
A metering device according to any preceding Claim, characterised in that it further comprises means for automatically and proportionally reducing the quantities delivered without changing the value of the quantities stored in the memory means, comprising a mechanical volume regulator on the body of the pump (6).
Claim 7
Dependent Claim
27 words
A metering device according to any preceding Claim, characterised in that it further comprises means for manually cancelling the dispensing of one or more products and/or additives.
Claim 8
Dependent Claim
29 words
A'metering device according to any preceding Claim, characterised in that it further comprises means for performing additional rinsing of the pump (6) and the tubes (2,5) with mains water.
Claim 9
Dependent Claim
33 words
A metering device according to any preceding Claim, characterised by the fact that it includes an alarm device for indicating when the product and/or additive in the containers reaches a threshold low level.
Claim 10
Dependent Claim
38 words
A metering device according to any preceding Claim, characterised in that it further comprises means for rapid manual priming of the pump (6) in the event of possible emptying of the supply tubes (2,5) from the containers (1).
Claim 11
Dependent Claim
30 words
A metering device according to any preceding Claim, characterised in that it further comprises means for indicating the absence of rinsing water in the tubes (2,5) and/or the pump (6).
Claim 12
Dependent Claim
20 words
A metering device according to any preceding Claim, characterised in that it further comprises means for displaying the selected programme.
Claim 13
Dependent Claim
37 words
A metering device according to any preceding Claim, characterised in that it further com - prises means for counting the number of strokes performed by the plunger of the pump (6) for each product and/or liquid additive.
Claim 14
Dependent Claim
44 words
A metering device according to any preceding Claim, characterised in that it further comprises means for indicating which product and/or additive is being introduced into the utiliser machine at any one time, and, therefore, the operating phase of the utiliser machine at that time.
Claim 15
Dependent Claim
18 words
A metering device according to Claim 14, characterised in that the said indicating means are illuminable warning lamps.
References Cited (Backward Citations)
No citation records indexed.
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