LIQUID SUPPLYING APPARATUS

• US 3,629,858 A
• Filed: 04/07/1970
• Issued: 12/21/1971
• Est. Priority Date: 04/09/1969
• Status: Expired due to Term

• Current Assignee: N/A
• Original Assignee: N/A
• Time in Patent Office: 623 Days
• US Class Current: 222/2
• CPC Class Codes: B67D 7/308 involving digital counting
• CPC Class Codes: G06Q 20/342 Cards defining paid or billed services or quantities
• CPC Class Codes: G07F 7/025 by means, e.g. cards, providing billing information at the time of purchase, e.g. identification of seller or purchaser, quantity of goods delivered or to be delivered

Abstract

A liquid-supplying apparatus including a card reader having a single card insertion opening connected to a plurality of liquidsupplying systems for varieties of liquid. The kinds and quantities of liquid are respectively read from cards put in and out of the card reader in sequence, stored in a memory circuit and used for supply of liquid in the predetermined quantity.

Claims

1. A liquid-supplying apparatus comprising a plurality of liquid reservoirs respectively having different sorts of liquid in storage, liquid-supplying conduit pipes arranged respectively for different liquid-supplying systems extending from respective liquid reservoirs to predetermined positions, meAns for delivering the liquid respectively provided in the liquidsupplying pipes, flowmeters provided respectively in the liquidsupplying pipes, open-close valves provided respectively in the liquid-supplying pipes, a single card reader having a single card insertion opening, liquid sort discriminating circuits for transmitting a liquid quantity read by the card reader to a circuit system corresponding to the liquid sort read by the card reader, memory circuits provided in each of said systems to memory the liquid quantity transmitted through the discriminating circuits, and a means for closing the open-close valves upon coincidence of flow quantity signals from the flowmeters and liquid quantity signals memoried in the memory circuit, said card reader cooperating in sequence with a plurality of cards incorporating the liquid sort code and the liquid quantity code and having reader parts for reading each code of said card.

2. A liquid-supplying apparatus as defined in claim 1 wherein said card reader has a liquid sort reader part and a liquid quantity reader part cooperating with a card inserted from the single card insertion opening.

3. A liquid-supplying apparatus as defined in claim 1 wherein said flowmeter has a fixed quantity signal emission part emitting a fixed quantity signal for each predetermined quantity of liquid and said valve closing means further has a means for closing said open-close valve temporarily by a signal from said fixed quantity signal emission part.

4. A liquid-supplying apparatus as defined in claim 1 wherein said means for closing the open-close valves comprises a comparator circuit comparing the flow quantity signal and the liquid supply signal and producing an output upon coincidence of said two signals, and means for interlocking and holding the valve opening means of the open-close valve in nonoperable condition by the output of the comparator circuit, said holding means being reset by a reset signal to return to its previous condition.

5. A liquid-supplying apparatus as defined in claim 1, wherein aid card reader includes an erronous-operation-prevention circuit which comprises a card insertion confirmation means to operate when the card is inserted to a predetermined position in the card reader, a gate circuit provided between the reading means of said card reader and the memory circuit, means for actuating only when a signal from the confirmation means enters in a reset condition and generating a pulse signal of a relatively short time period, and means for opening said gate circuit only during a period of said pulse signal supplied from said pulse generating means, said memory circuit storing the signal supplied from said card reader only during the opening period of said gate circuit.

6. A liquid-supplying apparatus comprising a plurality of liquid reservoirs respectively having different sorts of liquid in storage, liquid-supplying conduit pipes arranged respectively for different liquid-supplying systems extending from respective liquid reservoirs to predetermined positions, means for delivering the liquid respectively provided in the pipes, flowmeters provided respectively in the liquid-supplying pipes, open-close valves respectively provided in the liquid-supplying pipes, a single card reader having a single card insertion opening, liquid sort discriminating circuits having AND Circuits for transmitting a liquid quantity read by the card reader to a circuit system corresponding to the liquid sort read by the card reader, memory circuits having flip-flop circuits in each of said systems to memory the supply liquid quantity transmitted through the discriminating circuits, circuits for counting the flow quantity signals from said flowmeters, circuits for binary-to-decimal conversion of signals from the memory circuits and the counting circuits, comparator circuits for comparing the signals from said each conversion circuit to produce outputs upon coincidence of said respective two signals, a means for closing the open-close valves by outputs of the comparator circuits, said card reader cooperating in sequence with a plurality of cards respectively incorporating the liquid sort code and the liquid quantity code and having a liquid sort reader part and a liquid quantity reader part cooperating with a card inserted from the single card insertion opening.