EP1102640A1 - Remote control device for paint supplying guns - Google Patents

Remote control device for paint supplying guns

Info

Publication number
EP1102640A1
EP1102640A1 EP99944350A EP99944350A EP1102640A1 EP 1102640 A1 EP1102640 A1 EP 1102640A1 EP 99944350 A EP99944350 A EP 99944350A EP 99944350 A EP99944350 A EP 99944350A EP 1102640 A1 EP1102640 A1 EP 1102640A1
Authority
EP
European Patent Office
Prior art keywords
remote control
control device
remote
control unit
units
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.)
Granted
Application number
EP99944350A
Other languages
German (de)
French (fr)
Other versions
EP1102640B1 (en
Inventor
Giovanni Ferrari
Pierangelo Viola
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.)
ABB Process Solutions and Services SpA
Original Assignee
ABB Flexible Automation SpA
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
Application filed by ABB Flexible Automation SpA filed Critical ABB Flexible Automation SpA
Publication of EP1102640A1 publication Critical patent/EP1102640A1/en
Application granted granted Critical
Publication of EP1102640B1 publication Critical patent/EP1102640B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area

Definitions

  • the present invention relates to a remote control device for paint supplying guns for painting systems.
  • the control device according to the present invention is particularly adapted for remotely controlling the activation of painting guns used for example in the field of hide painting and is now described with reference to this application without limiting in any way its scope of application.
  • a continuous rotary machine is it) currently used; said continuous rotary machine is constituted by a conveyor belt on which the hide to be painted is placed and by an overlying carrousel which supports a plurality of airbrushes, which are meant to dispense a preset amount of paint for painting the hides.
  • a hide finishing line can be provided with a plurality of automatic painting cells,
  • the aim of the present invention is therefore to provide a remote control device for paint supplying guns for painting systems, in which it is possible to adjust the 5 supplying of the painting product without necessarily interrupting the production cycle of the painting machine.
  • an object of the present invention is to provide a remote control device for paint supplying guns for painting systems, in which the dispensed flow-rate of the paint is adjustable for all the supplying guns independently for each gun.
  • Another object of the present invention is to provide a remote control device for paint supplying guns for painting systems, which is highly reliable, relatively easy to manufacture and at competitive costs.
  • a remote control device for paint supplying guns for painting systems characterized in that it comprises a main control unit which is suitable to communicate in a wireless manner with a plurality of remote control units, said remote control units being associated with a respective paint supplying gun and comprising control means and actuation means for regulating the flow-rate of the associated supplying gun, said remote control units being controlled by said main control unit.
  • figure 1 is an overall schematic view of the control device according to the invention, applied by way of example to a paint supplying gun;
  • -figure 1 a is a plan view of a remote unit according to the present invention;
  • -figure 2 is a sectional schematic view of the detail of the flow-rate regulation of a paint supplying gun
  • -figure 3 is a general block diagram of the control device according to the present invention
  • -figure 4 is a block diagram of the main unit of the control device according to the present invention
  • -figure 5 is a block diagram of a remote unit of the device according to the present invention.
  • the remote control device applied to a paint supplying gun or airbrush 1, comprises a main control unit 2 provided with data input means 3, conveniently provided by means of a handheld keypad provided with a display 4, and a plurality of remote units 5, one for each one of the airbrushes 1 used in the painting apparatus.
  • the remote unit 5 communicates in a wireless manner with the main control unit 2 by means of the antennas 6 and 7, which are arranged respectively on the main control unit 2 and on each one of the remote units 5.
  • the main control unit 2 and each remote unit 5 are provided with two antennas 6 and 7, respectively; alternatively, if necessary, it is possible to use only one antenna (6
  • each remote unit 5 comprises, in addition to the antennas 7, a transceiver module 8 which is meant to be connected to the antennas 7, an actuation device or driver 9 for a motor 10 whose shaft 1 1 is connected to a paint supplying gun 1 , through connecting means which are advantageously provided by means of a
  • Each remote unit 5 is furthermore provided with its own power supply means, conveniently provided for example by batteries 13; alternatively, said power supply means can comprise a turbine or other means provided they are compatible with the application.
  • a microprocessor control card 14 allows to control a
  • Figure la is a plan view of the remote unit 5, illustrating a device for detecting the rotation of the motor 10, designated by the reference numeral 16, and conveniently provided for example by an encoder, which is meant to detect in each time the position of the shaft 1 1 of the motor and accordingly of the element actuated by said shaft, which is described hereinafter.
  • the reference numeral 17 instead designates a sealing flange of the shaft 1 1 of the motor 10.
  • the remote unit 5, arranged directly on the supplying gun or airbrush 1 and consequently the remote-controlled motor 10, are controlled by means of multiple-frequency radio pulses by the main control unit 2, so as to act, by means of the flexible cable 12, on actuation means for regulating the flow-rate of the paint supplying gun 1.
  • the reference numeral 20 designates an adjustment screw against which a piston 21 acts by abutment; the stem of the piston 21 is constituted, at the opposite end with respect to the adjustment screw 20, by a pin or needle 22 for adjusting the flow-rate of the paint.
  • Said needle 22 can be made to perform a translatory motion, by means of the piston 21, from a fully closed paint supplying position to a fully open position in which the flow-rate is accordingly maximum.
  • This flow-rate adjustment occurs by moving the piston 21 into abutment against the adjustment screw 20, which accordingly is meant to determine the useful stroke of the piston 21.
  • the position of the screw 20 is therefore determined by the motor 10 by means of the shaft 1 1 and the flexible cable 12.
  • the piston 21 is actuated pneumatically by air injected into a duct 23, whilst the duct 24 illustrated in figure 1 is the paint inlet point.
  • Figure 1 illustrates two ducts 23 and two ducts 24.
  • the two ducts 24 are meant to allow the connection in series of multiple airbrushes 1 if required.
  • Figures 4 and 5 respectively illustrate in detail, as a block diagram, the structure of the main control unit 2 and of each remote unit 5.
  • the main control unit 2 comprises the local terminal, provided by the handheld keypad 3, for setting and displaying position values of each remote unit 5, which is interfaced with the outside by virtue of the interface means 4.
  • the local terminal 3 is connected to data processing means 26 which are conveniently provided by a microprocessor provided with a log of the positions of the remote units 5 which is always up-to-date to one preceding step.
  • the memory of the microprocessor stores a multitasking program for the management of the various remote units 5.
  • the microprocessor 26 communicates with a battery charger 27 which is provided with an analog control of the value of the voltage and current for recharging the remote unit 5.
  • the microprocessor is bidirectionally connected to a data preparation module 28, which is meant to store all the data to be transferred to the remote units 5 to be remotely controlled, in order to send them to multiplexing means 29 and to data synchronization means 30.
  • the multiplexing means have time-dependent control over access to the remote units 5, so as to correctly select the remot unit 5 that has to be driven, and send signals to encoding means 31 of the transmission protocol, which are connected to the transmission means 32 which are in turn connected to solid-state switching means 33 with an antenna 6.
  • the solid-state switching means 33 are also meant to receive, by means of the antenna, reply signals from the remote units 5; said signals are sent to receiver means 35, decoded by decoder means 34, and sent to the multiplexing means 29 and then to the data synchronization means 30, which check the synchronization between the data sent by the microprocessor 26 and the data received by the remote units 5.
  • Figure 5 illustrates in detail, as a block diagram, the structure of each one of the remote units 5.
  • Said remote units comprise selection means 40 which allow to code the remote unit so that the microprocessor can drive each remote unit 5.
  • a processing unit 41 which comprises a microprocessor, is connected to the selection means 40 and comprises and a memory which contains values which need to be changed but in any case must not be lost when the control device is switched off.
  • Power supply means 42 are connected to the processing unit 41 and are provided with a device for electrical insulation with respect to the connector of a battery charger and with a battery control device with real-time analysis of the remaining power.
  • the pulses read by the encoder 16 are transmitted to the processing unit 41.
  • the processing unit 41 sends data to the encoder means 43 of the remote unit 5 and then the data are passed to the transmission means 44 and by means of solid- state switchin ⁇ means 45 with an antenna 7 the data are transmitted to the main control unit 2 and received by it by means of the antenna 6.
  • the switching means 45 furthermore receive, by means of the antenna 7, the data from the main control unit 2 and, by means of receiver means 46 and decoder means 47, said data are forwarded to the processing unit 41 of the remote unit 5.
  • the motor 10 that is used can be of various kinds, for example a step motor, a DC-powered permanent-magnet motor, or a brushless motor complete with an encoder and a resolver, or a servomotor.
  • control device In practice it has been found that the control device according to the invention fully achieves the intended aim and objects, since it allows to radio control the opening of the needle for regulating the paint supplying flow-rate of each painting unit by means of a motor which acts directly on the adjustment screw that actuates said needle.

Landscapes

  • Nozzles (AREA)
  • Spray Control Apparatus (AREA)
  • Details Of Television Systems (AREA)
  • Selective Calling Equipment (AREA)
  • Percussion Or Vibration Massage (AREA)

Abstract

A remote control device for paint supplying guns for painting systems, whose particularity is the fact that it comprises a main control unit which is suitable to communicate in a wireless manner with a plurality of remote control units (5), each associated with a respective paint supplying gun (1), said remote control units comprising control means and actuation means for regulating the flow-rate of the respective suppyling gun and being remotely controlled by the main control unit (2).

Description

REMOTE CONTROL DEVICE FOR PAINT SUPPLYING GUNS
DESCRIPTION
The present invention relates to a remote control device for paint supplying guns for painting systems. The control device according to the present invention is particularly adapted for remotely controlling the activation of painting guns used for example in the field of hide painting and is now described with reference to this application without limiting in any way its scope of application. It is known that in the field of hide painting a continuous rotary machine is it) currently used; said continuous rotary machine is constituted by a conveyor belt on which the hide to be painted is placed and by an overlying carrousel which supports a plurality of airbrushes, which are meant to dispense a preset amount of paint for painting the hides. A hide finishing line can be provided with a plurality of automatic painting cells,
15 each equipped with an airbrush rotating unit.
The above described apparatus, however, is affected by drawbacks due to the fact that owing to the delicate nature of the paint application process it is necessary to continuously adjust the paint flow-rate. Adjustment of the amount of paint dispensed by the individual airbrushes must be performed manually with a direct
20 action of the operator on each airbrush, and this necessarily entails a process downtime (line stoppage) during which the operators perform the required adjustments.
The aim of the present invention is therefore to provide a remote control device for paint supplying guns for painting systems, in which it is possible to adjust the 5 supplying of the painting product without necessarily interrupting the production cycle of the painting machine.
Within the scope of this aim, an object of the present invention is to provide a remote control device for paint supplying guns for painting systems, in which the dispensed flow-rate of the paint is adjustable for all the supplying guns independently for each gun.
Another object of the present invention is to provide a remote control device for paint supplying guns for painting systems, in which adjustment is performed without requiring further actuation distribution. Another object of the present invention is to provide a remote control device for paint supplying guns for painting systems, which can be used with any kind of currently commercially available gun.
Another object of the present invention is to provide a remote control device for paint supplying guns for painting systems, which is highly reliable, relatively easy to manufacture and at competitive costs.
This aim, these objects and others which will become apparent hereinafter are achieved by a remote control device for paint supplying guns for painting systems, characterized in that it comprises a main control unit which is suitable to communicate in a wireless manner with a plurality of remote control units, said remote control units being associated with a respective paint supplying gun and comprising control means and actuation means for regulating the flow-rate of the associated supplying gun, said remote control units being controlled by said main control unit.
Further characteristics and advantages of the invention will become apparent from the description of a preferred embodiment of the device according to the invention, illustrated only by way of non-limitative example in the accompanying drawings, wherein: figure 1 is an overall schematic view of the control device according to the invention, applied by way of example to a paint supplying gun; -figure 1 a is a plan view of a remote unit according to the present invention;
-figure 2 is a sectional schematic view of the detail of the flow-rate regulation of a paint supplying gun;
-figure 3 is a general block diagram of the control device according to the present invention; -figure 4 is a block diagram of the main unit of the control device according to the present invention;
-figure 5 is a block diagram of a remote unit of the device according to the present invention.
5 With reference to the above figures, the remote control device according to the present invention, applied to a paint supplying gun or airbrush 1, comprises a main control unit 2 provided with data input means 3, conveniently provided by means of a handheld keypad provided with a display 4, and a plurality of remote units 5, one for each one of the airbrushes 1 used in the painting apparatus. it) The remote unit 5 communicates in a wireless manner with the main control unit 2 by means of the antennas 6 and 7, which are arranged respectively on the main control unit 2 and on each one of the remote units 5. As shown in figure 1 , the main control unit 2 and each remote unit 5 are provided with two antennas 6 and 7, respectively; alternatively, if necessary, it is possible to use only one antenna (6
15 or 7) or more than two.
In detail, each remote unit 5 comprises, in addition to the antennas 7, a transceiver module 8 which is meant to be connected to the antennas 7, an actuation device or driver 9 for a motor 10 whose shaft 1 1 is connected to a paint supplying gun 1 , through connecting means which are advantageously provided by means of a
20 flexible cable 12.
Each remote unit 5 is furthermore provided with its own power supply means, conveniently provided for example by batteries 13; alternatively, said power supply means can comprise a turbine or other means provided they are compatible with the application. A microprocessor control card 14 allows to control a
25 microprocessor contained in the main control unit 2.
Figure la is a plan view of the remote unit 5, illustrating a device for detecting the rotation of the motor 10, designated by the reference numeral 16, and conveniently provided for example by an encoder, which is meant to detect in each time the position of the shaft 1 1 of the motor and accordingly of the element actuated by said shaft, which is described hereinafter.
The reference numeral 17 instead designates a sealing flange of the shaft 1 1 of the motor 10.
The remote unit 5, arranged directly on the supplying gun or airbrush 1 and consequently the remote-controlled motor 10, are controlled by means of multiple-frequency radio pulses by the main control unit 2, so as to act, by means of the flexible cable 12, on actuation means for regulating the flow-rate of the paint supplying gun 1.
With reference now to figure 2, the means for adjusting the flow-rate of the airbrush 1 are illustrated in detail.
In particular, the reference numeral 20 designates an adjustment screw against which a piston 21 acts by abutment; the stem of the piston 21 is constituted, at the opposite end with respect to the adjustment screw 20, by a pin or needle 22 for adjusting the flow-rate of the paint. Said needle 22 can be made to perform a translatory motion, by means of the piston 21, from a fully closed paint supplying position to a fully open position in which the flow-rate is accordingly maximum.
This flow-rate adjustment, by means of the needle 22, occurs by moving the piston 21 into abutment against the adjustment screw 20, which accordingly is meant to determine the useful stroke of the piston 21. The position of the screw 20 is therefore determined by the motor 10 by means of the shaft 1 1 and the flexible cable 12.
The piston 21 is actuated pneumatically by air injected into a duct 23, whilst the duct 24 illustrated in figure 1 is the paint inlet point.
Figure 1 illustrates two ducts 23 and two ducts 24. The two ducts 24 are meant to allow the connection in series of multiple airbrushes 1 if required.
Figures 4 and 5 respectively illustrate in detail, as a block diagram, the structure of the main control unit 2 and of each remote unit 5.
The main control unit 2 comprises the local terminal, provided by the handheld keypad 3, for setting and displaying position values of each remote unit 5, which is interfaced with the outside by virtue of the interface means 4. The local terminal 3 is connected to data processing means 26 which are conveniently provided by a microprocessor provided with a log of the positions of the remote units 5 which is always up-to-date to one preceding step. The memory of the microprocessor stores a multitasking program for the management of the various remote units 5. The microprocessor 26 communicates with a battery charger 27 which is provided with an analog control of the value of the voltage and current for recharging the remote unit 5. The microprocessor is bidirectionally connected to a data preparation module 28, which is meant to store all the data to be transferred to the remote units 5 to be remotely controlled, in order to send them to multiplexing means 29 and to data synchronization means 30. The multiplexing means have time-dependent control over access to the remote units 5, so as to correctly select the remot unit 5 that has to be driven, and send signals to encoding means 31 of the transmission protocol, which are connected to the transmission means 32 which are in turn connected to solid-state switching means 33 with an antenna 6. The solid-state switching means 33 are also meant to receive, by means of the antenna, reply signals from the remote units 5; said signals are sent to receiver means 35, decoded by decoder means 34, and sent to the multiplexing means 29 and then to the data synchronization means 30, which check the synchronization between the data sent by the microprocessor 26 and the data received by the remote units 5. Figure 5 illustrates in detail, as a block diagram, the structure of each one of the remote units 5.
Said remote units comprise selection means 40 which allow to code the remote unit so that the microprocessor can drive each remote unit 5. A processing unit 41 , which comprises a microprocessor, is connected to the selection means 40 and comprises and a memory which contains values which need to be changed but in any case must not be lost when the control device is switched off. Power supply means 42 are connected to the processing unit 41 and are provided with a device for electrical insulation with respect to the connector of a battery charger and with a battery control device with real-time analysis of the remaining power.
The motor 10, which transmits the rotation to the adjustment screw 20 for opening the needle 22 of the airbrush 1 , receives the signals from the processing unit 41 ; the driver 9 drives the motor 10, and the detection of the rotation of the shaft 1 1 of the motor 10 and therefore of the opening stroke of the needle 22 of the gun 1 is performed by means of the encoder 16, which is directly connected to the shaft 1 1 of the motor. The pulses read by the encoder 16 are transmitted to the processing unit 41.
The processing unit 41 sends data to the encoder means 43 of the remote unit 5 and then the data are passed to the transmission means 44 and by means of solid- state switchinε means 45 with an antenna 7 the data are transmitted to the main control unit 2 and received by it by means of the antenna 6.
The switching means 45 furthermore receive, by means of the antenna 7, the data from the main control unit 2 and, by means of receiver means 46 and decoder means 47, said data are forwarded to the processing unit 41 of the remote unit 5. The motor 10 that is used can be of various kinds, for example a step motor, a DC-powered permanent-magnet motor, or a brushless motor complete with an encoder and a resolver, or a servomotor.
In practice it has been found that the control device according to the invention fully achieves the intended aim and objects, since it allows to radio control the opening of the needle for regulating the paint supplying flow-rate of each painting unit by means of a motor which acts directly on the adjustment screw that actuates said needle.
In this manner it is possible to provide remote control without interrupting the operating cycle of the painting machine, furthermore being able to independently adjust each airbrush according to the requirements.
The device thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the inventive concept; all the details may furthermore be replaced with other technically equivalent elements. n practice, the materials used, so long as they are compatible with the specific use, as well as the dimensions, may be any according to the requirements and the state of the art.

Claims

1. A remote control device for paint supplying guns for painting systems, characterized in that it comprises a main control unit which is suitable to communicate in a wireless manner with a plurality of remote control units,
5 said remote control units being associated with a respective paint supplying gun and comprising control means and actuation means for regulating the flow-rate of the associated supplying gun, said remote control units being controlled by said main control unit.
2. A remote control device according to claim 1 , characterized in that the main it) control unit and the remote control units mutually communicate by means of multiple-frequency radio pulses.
3. A remote control device according to claim 1, characterized in that said actuation means comprise at least one motor whose shaft is connected, through connecting means, to a screw for regulating the flow-rate of a supplying gun.
15 4. A remote control device according to claim 3, characterized in that said motor comprises a step motor, or a DC-powered permanent-magnet motor, or a brushless motor, or a servomotor. 5. A remote control device according to claim 3, characterized in that said connection means comprise a flexible cable.
20 6. A remote control device according to one or more of the preceding claims, characterized in that said remote units comprise power supply means, electronic control means, means for determining the position of the motor shaft and transceiver means.
7. A remote control device according to claim 6, characterized in that said 25 transceiver means comprise at least a first transceiver antenna suitable to exchange data with the main control unit.
8. A remote control device according to claim 6, characterized in that said means for determining the position of the motor shaft comprise an encoder.
9. A remote control device according to claim 6, characterized in that said electronic control means comprise a processing unit which is operatively connected, by means of encoder and decoder means, to transmitter and receiver means, said transmitter and receiver means being in turn connected to said first transceiver antenna by means of switching means. 10. A remote control device according to claim 7, characterized in that said processing unit comprises a microprocessor. 1 1. A remote control device according to one or more of the preceding claims, characterized in that said main control unit comprises data entry and display means. 12. A remote control device according to one or more of the preceding claims, characterized in that said main control unit comprises at least a second transceiver antenna suitable to exchange data with the first receiver antenna. 13. A remote control device according to claim 12 characterized in that said main control unit comprises data processing means which are operatively connected to multiplexing means suitable to select the remote unit to be driven, said multiplexing means being connected to encoding means and to transmission means which are in turn operatively connected to switching means and to said second transceiver antenna. 14. A remote control device according to claim 13, characterized in that said multiplexing means receive in input signals from each one of said remote units said signals being received by means of said second transceiver antenna and being transmitted to the multiplexing means by virtue of receiver means and decoder means. 15. A remote control device according to one or more of the claims 1 1 to 14, characterized in that said main control unit comprises data synchronization means which are suitable to provide synchronization between the data sent to and received from each one of said remote units. 16. A remote control device according to claim 13, characterized in that said data processing means comprise a microprocessor.
EP99944350A 1998-08-06 1999-08-03 Remote control device for paint supplying guns Expired - Lifetime EP1102640B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT1998MI001858A IT1302146B1 (en) 1998-08-06 1998-08-06 AIRBRUSHES REMOTE CONTROL DEVICE, PARTICULARLY FOR PAINTING SYSTEMS.
ITMI981858 1998-08-06
PCT/EP1999/005749 WO2000007741A1 (en) 1998-08-06 1999-08-03 Remote control device for paint supplying guns

Publications (2)

Publication Number Publication Date
EP1102640A1 true EP1102640A1 (en) 2001-05-30
EP1102640B1 EP1102640B1 (en) 2006-10-04

Family

ID=11380634

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99944350A Expired - Lifetime EP1102640B1 (en) 1998-08-06 1999-08-03 Remote control device for paint supplying guns

Country Status (5)

Country Link
EP (1) EP1102640B1 (en)
AT (1) ATE341401T1 (en)
DE (1) DE69933458T2 (en)
IT (1) IT1302146B1 (en)
WO (1) WO2000007741A1 (en)

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Publication number Priority date Publication date Assignee Title
FR2809334B1 (en) 2000-05-29 2003-02-28 Eisenmann Sarl SPRAYING DEVICE FOR SPRAYING A COATING PRODUCT
US6500262B1 (en) * 2000-10-31 2002-12-31 Nordson Corporation Remote control device for painting system
DE10240451A1 (en) 2002-09-02 2004-03-11 Dürr Systems GmbH Sensor arrangement for a coating system
DE10335420A1 (en) * 2003-08-02 2005-02-17 ITW Oberflächentechnik GmbH & Co. KG Spray coater
WO2005018825A1 (en) * 2003-08-18 2005-03-03 Nordson Corporation Wireless operator interface for material application system
US20050107896A1 (en) * 2003-09-22 2005-05-19 Glen Kucera Remote controlled paint sprayer
WO2005075088A2 (en) * 2004-01-30 2005-08-18 Nordson Corporation Material application system having component with wireless identification capabilities
ITMI20100256U1 (en) * 2010-07-28 2012-01-29 Rigo S R L SPRAYING SYSTEM OF LIQUIDS WITH RADIO CONTROL.
US11181588B2 (en) 2018-08-13 2021-11-23 Carlisle Fluid Technologies, Inc. Systems and methods for detection and configuration of spray system components

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US3943312A (en) * 1975-02-14 1976-03-09 Grumman Aerospace Corporation Fire hose nozzle coupler switch
JPS5962360A (en) * 1982-10-02 1984-04-09 Nippon Wagner Supureetec Kk Remote controlled automatic spray gun
US4722625A (en) * 1985-09-26 1988-02-02 Triune Automated Painting Systems Remote control device for powered painting system
US5381962A (en) * 1992-12-10 1995-01-17 Hydro-Chem Systems, Inc. Remote controlled spraying device
US5660334A (en) * 1995-01-13 1997-08-26 Clark Equipment Company Remote control for electrostatic sprayer elements

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See references of WO0007741A1 *

Also Published As

Publication number Publication date
DE69933458D1 (en) 2006-11-16
EP1102640B1 (en) 2006-10-04
DE69933458T2 (en) 2007-03-29
WO2000007741A1 (en) 2000-02-17
ITMI981858A1 (en) 2000-02-06
ATE341401T1 (en) 2006-10-15
IT1302146B1 (en) 2000-07-31
ITMI981858A0 (en) 1998-08-06

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