EP0025754B1 - Procédé et installation pour encourager la restitution d'un véhicule roulant, tel qu'un chariot de supermarché - Google Patents

Procédé et installation pour encourager la restitution d'un véhicule roulant, tel qu'un chariot de supermarché Download PDF

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Publication number
EP0025754B1
EP0025754B1 EP80401278A EP80401278A EP0025754B1 EP 0025754 B1 EP0025754 B1 EP 0025754B1 EP 80401278 A EP80401278 A EP 80401278A EP 80401278 A EP80401278 A EP 80401278A EP 0025754 B1 EP0025754 B1 EP 0025754B1
Authority
EP
European Patent Office
Prior art keywords
vehicle
gate
installation according
installation
conveyor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP80401278A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0025754A1 (fr
Inventor
Guy Gillet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUPERMARKET SYSTEMS
Original Assignee
SUPERMARKET SYSTEMS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR7922835A external-priority patent/FR2465279A1/fr
Priority claimed from FR8013884A external-priority patent/FR2485232B2/fr
Application filed by SUPERMARKET SYSTEMS filed Critical SUPERMARKET SYSTEMS
Priority to AT80401278T priority Critical patent/ATE3915T1/de
Publication of EP0025754A1 publication Critical patent/EP0025754A1/fr
Application granted granted Critical
Publication of EP0025754B1 publication Critical patent/EP0025754B1/fr
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/06—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by returnable containers, i.e. reverse vending systems in which a user is rewarded for returning a container that serves as a token of value, e.g. bottles
    • G07F7/0618—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by returnable containers, i.e. reverse vending systems in which a user is rewarded for returning a container that serves as a token of value, e.g. bottles by carts
    • G07F7/0636—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by returnable containers, i.e. reverse vending systems in which a user is rewarded for returning a container that serves as a token of value, e.g. bottles by carts in which the trolleys or carts are kept in a restricted zone such as a coral-like enclosure, or are passing a gate before use is possible
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/06—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by returnable containers, i.e. reverse vending systems in which a user is rewarded for returning a container that serves as a token of value, e.g. bottles
    • G07F7/0618—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by returnable containers, i.e. reverse vending systems in which a user is rewarded for returning a container that serves as a token of value, e.g. bottles by carts
    • G07F7/0627—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by returnable containers, i.e. reverse vending systems in which a user is rewarded for returning a container that serves as a token of value, e.g. bottles by carts in which the trolleys or carts are kept fixed or linked onto a rail or barrier

Definitions

  • the subject of the present invention is a method and an installation for encouraging the return of rolling vehicles, such as supermarket trolleys.
  • This installation is relatively complex and does not offer sufficient security against fraud attempts by certain users. It comprises a mechanical device fixed to the ground, associated with detectors intended to recognize the shape of the vehicles introduced into a storage area, but which only admits the carts of the type for which it has been adjusted and which, moreover, prohibits the removal of a cart that has been partially engaged in installation.
  • the possibility of fraud consisting in obtaining several rewards by moving a trolley in front of the detectors according to successive round trips, combined with the impossibility of removing from the installation a trolley which has been introduced therein by mistake, obliges to provide for the presence standing of a supermarket employee next to the facility.
  • the invention aims to remedy the drawbacks of existing installations and in particular relates to a method and an installation intended to prevent fraud in the return of rolling vehicles, such as supermarket trolleys.
  • the invention provides for this purpose a method for encouraging the return of a rolling vehicle, such as a supermarket trolley, in a reception area which includes an access control means, the method consisting in carrying out several checks of the identity of the vehicle when it crosses the access control means, and to issue, after verification, a reward, for example in the form of a ticket, characterized in that the access control means comprising at least one wicket placed at the entrance to the reception area, we carry out a first verification of the identity of the vehicle upstream of the wicket, then a second verification of the identity of the vehicle while it is crossing the wicket while allowing , during this crossing, a possible withdrawal of the vehicle, the gate is left to return to its closed condition after crossing, and the issue of a ticket is ordered only in the event that the second verification confirms e first and the vehicle is not removed when crossing the gate.
  • the access control means comprising at least one wicket placed at the entrance to the reception area, we carry out a first verification of the identity of the vehicle upstream of the wicket, then a second verification of the identity of the
  • the method according to the invention in addition to its effectiveness against fraud, allows the user who has inadvertently engaged his trolley in the reception area, to remove it without difficulty as long as the gate is not completely closed, this which could not be obtained with known installations.
  • the gate is lockable in the closed condition, and it is unlocked in the event of a satisfactory result of the first verification while it is locked when it has returned to its closed condition after crossing.
  • the first identity verification is carried out within a predetermined period of time beyond which, if the second verification is not conclusive, the distribution of a ticket is prohibited or the gate is locked.
  • the second verification is carried out in a predetermined period of time beyond which, if the identification is satisfactory, the gate is possibly again locked and the issue of a ticket is ordered.
  • the first and the second verification are carried out by optical detection of determined geometric characteristics of the vehicle, for example by means of infrared rays.
  • the first and second verifications are carried out by counting the number of bars of the trolley. The counting of the bars is carried out only on one side of the carriage, which avoids identification errors in the event that the carriage is incorrectly inserted.
  • the invention also provides an installation for implementing this method, comprising a means of controlling access to a vehicle reception area, opening by pushing a vehicle in the direction of access and provided a means for recalling in the closed position, several devices for verifying the identity of the vehicle, a dispenser for reward tickets, and a set for controlling the correct sequential flow of operations controlling the ticket dispenser, characterized in that , the access control means comprising at least one gate, a first verification device is located upstream of the gate and the second verification device is located between the first verification device and the gate, so that the second verification is carried out while the vehicle is passing through the gate, the installation also comprising a member sensitive to the gate closed position, connected to the control assembly for prohibit the issue of a ticket if the gate is not in its closed position after the vehicle has passed through it.
  • the first and second verification devices respectively comprise a photoelectric device whose transmitter and receiver are arranged on either side of the access to the reception area, the emitter and receiver of a device being offset in height relative to each other so that the emitted beam is inclined relative to the horizontal reference plane on which the vehicle to be moved moves in the area of reception.
  • a signal counting group is associated with each verification device.
  • the identity of the trolley is verified by counting the bars constituting one of the lateral flanks of the trolley.
  • the offset in height of the transmitter relative to the receiver of each verification device makes it possible to take into account the bars on one side of the carriage.
  • the transmitter and the receiver of each device are mounted in an adjustable manner in height on a substantially vertical support, which allows their adaptation according to the types of carriages to be controlled.
  • a trolley receiving area has an access corridor 1 to which are connected on either side of the tubular elements 2 forming part of an enclosure limiting said area.
  • the access area or airlock 4 to the reception area is limited by two lateral boxes 5 and 6 parallel to each other and connected to their upper rear parts by a transverse box 7, the assembly having, in horizontal projection, the shape of a U.
  • the boxes 5 and 6 as well as the box 7, of generally parallelepiped shape can be made in any suitable manner, in particular from folded sheet steel, or include a metal framework like that which is represented in the figure. 2, covered with a covering hiding and protecting the internal organs.
  • the assembly is fixed to the ground by lower fixing gussets 9.
  • a bowl 11 placed at the outlet of a chute and intended to receive a ticket issued by the machine after the user has introduced his cart into the reception area.
  • the chute is part of a ticket dispenser 12 conventionally comprising a motor drive which advances step by step a roll of pre-glued paper, a guillotine cutting the paper to detach a ticket at each operation, the ticket then being evacuated by the chute to the user.
  • This ticket dispenser 12 which is not shown in detail because it is well known, is fixed inside the box 6, in a place inaccessible to the user, on a plate 13 bolted to the frame and intended also to receive electronic components used for the operation of the installation and which have been referenced SC.
  • the airlock for access to the reception area is normally closed by two gates 14 pivotally mounted by their outer edge around vertical axes and which can open, from their closed position where their inner edges are joined, only downstream, as shown by the arrows F 1 ' F 2 .
  • Each of these gates is associated with a control mechanism contained in one of the boxes 5 or 6. These mechanisms being identical, only one will be described in the following.
  • each gate is constituted by a bent U-shaped tube fixed on a vertical shaft 15 rotatably supported in bearings 16 1 , 16 2 mounted on supports 17 1 , 17 2 fixed to the frame of the box 6 or 5.
  • a return spring 18 At the upper end of the shaft 15 is hooked a return spring 18 whose other end 19 is in abutment against a fixed part of the frame. This spring automatically returns the gate, when it has been opened, to the closed position shown in FIG. 2.
  • a damping device which is wedged on the shaft 15 and simply constituted ( Figures 5 and 6) by a disc 21 of flexible material , such as rubber, sandwiched between a sleeve 22 fixed by a screw shown diagrammatically at 24 on the shaft 15 and an upper disc 23, the discs 23 and the sleeve 22 being secured by screws.
  • the outer edge of the rubber disc 21 is in constant abutment against an edge 25 of a small cubic block 26 of the fixed frame, so that these two elements rub against each other when the gate closes, the shaft 15 then turning in the direction of arrow f ( Figure 6).
  • the gate 14 can be kept in the closed position by means of a locking device which is shown in detail in FIG. 4.
  • a part 27 On the lower end of the shaft 15 is wedged a part 27, in the form of a sector, pierced with holes 28.
  • This part 27 is located under a support 29a fixed to the frame 30 of the box and carrying an electromagnet 29 whose movable core 31 is slidably engaged inside a hole in the support 29a and is capable of projecting downwards by penetrating into one of the holes 28 of the part 27 integral with the shaft 15.
  • a stop 31 a, located under the part 27, makes it possible to limit the stroke of the core 31.
  • switches 32 which are actuated by the gates when they pivot and which act as detectors for the presence of the gates.
  • the opposite faces 33 and 33 'of the two boxes 5 and 6 have openings, respectively 35, 36, 35', 36 '( Figure 1) each closed by a plexiglass panel (methyl methacrylate), allowing the infrared rays to pass through. , thus concealing the interior of the boxes from users. Behind these panels are housed transmitters and receivers that are part of infrared ray devices.
  • Each device comprises a transmitter 37 and a receiver 38, respectively 37 1 and 38 1 (FIG. 2) behind the openings 35 and 35 ', and 37 2 and 38 2 behind the openings 36 and 36'.
  • Each transmitter and each receiver are slidably mounted on a vertical column, respectively 39, 39 ', disposed between supports 40, 41 fixed to the fixed frame of the installation. This arrangement makes it possible to adjust the height of each transmitter and each receiver.
  • each transmitter and each receiver are also adjustable by rotation about a horizontal axis A parallel to the mean longitudinal plane of the installation. This double possibility of adjusting the position of the transmitter and receiver allows, on the one hand, an adaptation of the installation to different trolley sizes, as seen with reference to FIG. 3, and, on the other hand part, to make a determination of the nature of the carriage only on one side thereof.
  • FIG. 3 there is shown in solid lines the carriage of smaller size and in broken lines the carriage of maximum size.
  • the carriage C (FIG. 7) has sides or sides formed by vertical or substantially vertical bars B.
  • the transmitter 37 1 is placed at a higher level of the distance H 1 than the upper edge of the carriage of maximum size and the receiver 38 1 is placed at a lower level of the distance H 2 than that of the upper edge of the smaller trolley.
  • the rays emitted by the transmitter 37 1 to the receiver 38 1 meet only one side of a carriage C whose size is included between the maximum gauge carriage and the minimum gauge carriage.
  • the indicator V i (green) is lit for the entire duration of the cycle and does not go out as a result until the ticket is issued.
  • a fourth indicator can also be provided which, when it is red, signals that the reception area can no longer receive a new carriage.
  • the gates being unlocked it suffices that the user continues to advance his carriage to push the gates downstream of the installation and thus open them.
  • the switches 32 for controlling the presence of the gates in the closed position then change state and allow the validation of the second transceiver device 37 2 , 38 2 which begins counting the vertical bars B of the carriage.
  • the number of bars counted by the second device reaches a predetermined value, recorded beforehand in the installation and corresponding to the second identification of the cart, the user just has to keep moving the cart forward so that it escapes completely to the gates and that they can return to the closed position under the effect of the return springs 18.
  • the cart is now inside the receiving area.
  • the gates by closing, control the switches 32 which authorize the locking of the gates by excitations of the electromagnets 29 of the door locks.
  • the entire operating cycle of the installation involves time delays which make it possible to control the times relating to the completion of each phase of progression of the carriage.
  • the back and forth of the same carriage are controlled by the first device which resumes counting and therefore reaches a predetermined number of counted bars for which the blocking of the process of issuing the ticket is triggered.
  • a user who mistakenly engaged a carriage between the doors can remove it as long as the carriage has not been fully engaged and the doors have not closed. However, in this case, the installation does not issue a ticket.
  • the installation includes a totalizing counter with reset, making it possible to count the number of tickets distributed.
  • the numbers 1 to 11 represent the various phases of operation in their succession over time.
  • the numbers on the left side of the table indicate, in succession in ascending order, the different stages of operation.
  • the framed indications linked to a number by a line schematize the operations of the stage designated by this number.
  • the indications located between two consecutive digits relate to the operations carried out between two stages of the process, or inter-stage operations.
  • a new operating cycle can be started.
  • the invention provides a variant in which, depending on the chosen ticket or coupon dispenser, a single pulse is used to issue the coupon, which makes it possible to disregard the launch of the paper cutter operations.
  • FIG 9 there is schematically shown part of an installation for the return of a cart 110, provided at the entrance to a storage area of the carriages 110, to which the public does not have access. It comprises a gantry delimiting an opening for introducing the carriages into the storage area, and which is formed by two vertical pillars 111 spaced apart by a distance greater than the width of a carriage 110 and connected at their upper end. by a horizontal transverse upright 112 comprising a certain number of indicator lights 113 for signaling the progress of the various operations carried out by the installation and its operating state.
  • the installation At its rear end, located on the side of the storage area, the installation comprises one or two gates 114 normally closing access to the storage area and which are intended to be opened by a carriage 110 pushed by a user under the portal 111, 112.
  • Various means of recognizing a carriage 110 are provided upstream of the gate 114 and are generally sequential, so as to execute a certain number of operations for identifying the carriage, in a determined order, when the carriage is pushed against the gate 114. If these operations are carried out in the determined order and advantageously within a determined period of time, they control the operation of a ticket dispenser housed in one of the pillars 111 and delivering a ticket through a slot 115 of the front of this pillar. This ticket entitles the user, who has returned his cart 110 to the storage area, to a reward or advantage of any kind.
  • At least one of the means for recognizing the carriage 110 is a photoelectric cell of the so-called “reflection type" comprising a housing 116 containing, side by side, an emitter of radiation of determined wavelength, for example a infrared radiation, and a receiving element for the detection of said radiation after reflection thereof on a reflector 117.
  • the housing 116 is mounted on the lower horizontal face of the transverse upright 112, and the reflector 117 is on the ground, in the passage of the carriage 110, being vertically aligned with the housing 116.
  • the installation comprises a gantry 111, 112 of the same type as above, and the housing 116 containing the photoelectric reflection cell is placed, no longer on the transverse upright 112, but on the internal face 118 of one of the pillars 111, while the reflector 117 is carried by a side walls of the carriage 110, the housing 116 and the reflector 117 being at the same height above the ground.
  • the housing 116 is used without associating it with a particular reflector, and these are different parts of the carriage 110, when the latter is opposite the housing 116, which play the role of reflector.
  • At least one of the means for recognizing a carriage is a metal detector 119, of a conventional type, which is mounted on a gate 114.
  • each door 114 carries a metal detector 119.
  • the carriage 110 is pushed onto the doors 114 its front part comes substantially into contact with the detectors 119, which take into account the presence of the carriage.
  • the metal detectors 119 remain substantially in contact with certain parts of the side walls of the carriage, and take into account the passage of said carriage under the transverse upright 112 of the gantry.
  • the invention also provides for having, behind the gantry 111, 112, an automatic drive or conveying means for the trolley.
  • the conveyor comprises two horizontal belts 121 with notched outer surface 122 which extend from the gantry 111, 112, shown in phantom, on either side of the passage for introducing the trolley 110 in the storage area.
  • the belts 121 pass over a drive wheel 123 fixed to a vertical drive shaft itself driven from a motor, for example electric, by means of a system of pinions 124 and belts 125.
  • the belts 121 pass around a deflection wheel carried by a vertical shaft, the end bearings 126 of which are guided in curved slots 127 and are subjected to the action of return springs tending to bring the from one another the rear ends of the belts 121, so that these define a guide path for the carriage 110 which is wider at its entry end of the carriage than at its exit end of said carriage.
  • the distance separating the two notched belts 121 at the level of the gantry 111, 112 is greater than the greatest width of a carriage 110, while the minimum distance separating these two belts at their opposite end is substantially equal to the smallest width of a cart.
  • This device operates as follows: when a carriage 110 is brought under the gantry 111, 112, the trolley identification means provided in the gantry control the starting of the conveyor, the belts 121 being driven by the driving wheels 123 in the direction indicated by the arrows 128.
  • the front end of the carriage comes into contact with the facing surfaces of the toothed belts 121, and the carriage is driven automatically, in the direction of arrow 129, until it leaves the conveyor. This then stops automatically.
  • the conveyor comprises a single belt 130 passing at its ends on rollers 131 and 132 with a horizontal axis, carried by a frame slightly raised relative to the ground 133.
  • the roller 132 is a roller leading, driven by means of a belt 134 by a motor 135, while the other roller 131 is a simple deflection roller.
  • the belt 130 for driving a carriage 110 comprises from place to place on its outer face perpendicular fingers 136 intended to cooperate with a front transverse bar 137 of the lower part of the carriage, to drive the latter in the direction of the arrow 138.
  • the belt 130 is preceded by an inclined plane 139 and is followed by another inclined plane 140, facilitating the bringing of the carriage 110 on the conveyor, and its evacuation at the outlet of the conveyor.
  • the gantry provided at the entrance to the storage area is replaced by two vertical pillars 141 comprising means for identifying the carriage 110, and two gates 142.
  • Two other vertical pillars 143 can be provided inside the storage area, on either side of the conveyor, to control the stopping of this conveyor.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Sowing (AREA)
EP80401278A 1979-09-12 1980-09-05 Procédé et installation pour encourager la restitution d'un véhicule roulant, tel qu'un chariot de supermarché Expired EP0025754B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80401278T ATE3915T1 (de) 1979-09-12 1980-09-05 Verfahren und anlage zum foerdern des zurueckbringens eines rollendes gefaehrts, wie z.b. eines einkaufswagens in einem supermarkt.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR7922835 1979-09-12
FR7922835A FR2465279A1 (fr) 1979-09-12 1979-09-12 Installation pour encourager la restitution de chariots dans un supermarche
FR8013884 1980-06-23
FR8013884A FR2485232B2 (fr) 1980-06-23 1980-06-23 Installation pour encourager la restitution de chariots dans un supermarche

Publications (2)

Publication Number Publication Date
EP0025754A1 EP0025754A1 (fr) 1981-03-25
EP0025754B1 true EP0025754B1 (fr) 1983-06-22

Family

ID=26221345

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80401278A Expired EP0025754B1 (fr) 1979-09-12 1980-09-05 Procédé et installation pour encourager la restitution d'un véhicule roulant, tel qu'un chariot de supermarché

Country Status (4)

Country Link
EP (1) EP0025754B1 (es)
DE (1) DE3063903D1 (es)
ES (1) ES8204195A1 (es)
NO (1) NO155640C (es)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3545307A1 (de) * 1985-12-20 1987-06-25 Wanzl Kg Rudolf Einrichtung zur annahme und zum bereitstellen von transportwagen, insbesondere einkaufswagen
DE3546577A1 (de) * 1985-12-20 1987-11-12 Wanzl Kg Rudolf Einrichtung zur annahme und zum bereitstellen von transportwagen, insbesondere einkaufswagen
US6975205B1 (en) 1998-09-16 2005-12-13 Carttronics, Llc Cart return credit system
US7194423B2 (en) 1998-03-27 2007-03-20 Walker Digital, Llc Method and apparatus for determining a progressive discount for a customer based on the frequency of the customer's transactions

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2108745B (en) * 1981-10-21 1985-04-11 Bydale Eng Ltd Trolley control system
FR2529001B1 (fr) * 1982-06-21 1987-06-26 Supermarket System Dispositif pour encourager la restitution de vehicules tels que des chariots a roulettes
WO1985000961A1 (en) * 1983-09-01 1985-03-14 Chemical And Power Associates Pty. Limited Receiving and acknowledging the return of a trolley at a check-in point
DE3621548A1 (de) * 1986-06-27 1988-01-07 Wanzl Kg Rudolf Vorrichtung zur aufnahme von transportwagen
US6415262B1 (en) 1997-07-08 2002-07-02 Walker Digital, Llc Method and apparatus for determining a subscription to a product in a retail environment
US7251617B1 (en) 1998-12-28 2007-07-31 Walker Digital, Llc Method and apparatus for managing subscriptions
US7240021B1 (en) 1998-03-27 2007-07-03 Walker Digital, Llc System and method for tracking and establishing a progressive discount based upon a customer's visits to a retail establishment
CN109441331B (zh) * 2018-11-01 2020-01-14 深圳市卡卓无线信息技术有限公司 一种用于智能楼宇的闸门通行装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882982A (en) * 1969-03-07 1975-05-13 Cara Charles Method and apparatus for encouraging return of shopping carts
US3754630A (en) * 1972-03-13 1973-08-28 D Gilker Shopping cart receiving means
US3837455A (en) * 1972-10-10 1974-09-24 A Hurt System and method for customer return of merchandise carts
US3978959A (en) * 1973-07-19 1976-09-07 Smarte Carte, Inc. Dispensing system for wheeled vehicles
US3938638A (en) * 1973-12-17 1976-02-17 Franklin Electric Subsidiaries, Inc. Apparatus for receiving and acknowledging the return of a vehicle at a check-in station

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3545307A1 (de) * 1985-12-20 1987-06-25 Wanzl Kg Rudolf Einrichtung zur annahme und zum bereitstellen von transportwagen, insbesondere einkaufswagen
DE3546577A1 (de) * 1985-12-20 1987-11-12 Wanzl Kg Rudolf Einrichtung zur annahme und zum bereitstellen von transportwagen, insbesondere einkaufswagen
US7194423B2 (en) 1998-03-27 2007-03-20 Walker Digital, Llc Method and apparatus for determining a progressive discount for a customer based on the frequency of the customer's transactions
US6975205B1 (en) 1998-09-16 2005-12-13 Carttronics, Llc Cart return credit system

Also Published As

Publication number Publication date
DE3063903D1 (en) 1983-07-28
ES494969A0 (es) 1982-04-16
NO802704L (no) 1981-03-13
ES8204195A1 (es) 1982-04-16
NO155640C (no) 1987-05-06
EP0025754A1 (fr) 1981-03-25
NO155640B (no) 1987-01-19

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