US3730133A - Apparatus for remote marking of articles of manufacture - Google Patents

Apparatus for remote marking of articles of manufacture Download PDF

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Publication number
US3730133A
US3730133A US00016712A US3730133DA US3730133A US 3730133 A US3730133 A US 3730133A US 00016712 A US00016712 A US 00016712A US 3730133D A US3730133D A US 3730133DA US 3730133 A US3730133 A US 3730133A
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United States
Prior art keywords
liquid
article
marking
gun
pulse
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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 - Lifetime
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US00016712A
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English (en)
Inventor
S Cordiano
P Halpin
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.)
Wyeth Holdings LLC
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American Cyanamid Co
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/26Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for marking or coding completed packages
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B05B1/3053Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice the actuating means being a solenoid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/12Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
    • B05B12/122Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus responsive to presence or shape of target
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/16Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K1/00Methods or arrangements for marking the record carrier in digital fashion
    • G06K1/12Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
    • G06K1/121Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching by printing code marks
    • G06K1/123Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching by printing code marks for colour code marks

Definitions

  • a marking liquid is supplied to the gun at a predetermined low pressure and momentarily allowed to pass into an orifice of selected length and diameter to form a traveling slug of liquid.
  • the traveling slug of liquid rapidly advances along the orifice and attains a momentum sufficient to carry it across a gap, in the form of a cohesive liquid pulse, onto an article to be marked,
  • the liquid pulse is free from atomization and retains its cohesiveness until it impacts on the surface of the article where the liquid pulse is flattened without splatter into a sharply defined generally round mark.
  • Photoluminescent components may be employed in the marking liquid to provide automatic detection capability of the marked articles. Rapid successive firing of the gun enables the generation of patterns of marks for article serial number identification and the like.
  • a gun for generating a cohesive liquid pulse is located along a conveyor carrying articles of manufacture past a marking station.
  • the gun is aimed at a side of the articles moving past and selectively spaced from the articles so that a cohesive pulse of marking liquid may be ejected from the gun onto the articles.
  • An article sensor is located at the marking station to produce a signal for triggering the liquid pulse producing gun.
  • the liquid pulsing gun produces a cohesive liquid pulse, free from atomization, and which may be accurately aimed at a sensed article.
  • a supply of marking liquid is provided to the gun at a low pressure level to assure the generation of a cohesive pulse yet with sufficient pressure to impart the liquid pulse with a momentum sufficient to jump across the gap between the gun and an article to be marked.
  • liquid pulse occurs in a very short time period, measured in milliseconds, and a number of pulses may be applied in a controlled pattern on each article for serial number identification and the like.
  • the high speed generation of liquid pulses accommodates high speed motion of the articles past the marking station yet with the preservation of generally round sharply defined marks.
  • the marking liquid applied to the articles is formed of an ink containing photoluminescent components.
  • photoluminescent components fluoresce in color wavelengths upon exposure to ultraviolet light or a similar short wave radiation. Different fluorescing color wavelength radiations may be obtained depending upon the type of components in the ink.
  • the photoluminescent components may be as described in the U. S. Pat. to Freeman et al., No. 3,473,027.
  • the ink may be colorless so as to be transparent in normal daylight or suitably pigmented for daylight inspection.
  • a liquid pulse producing gun in accordance with the invention includes a needle valve normally seated to close an orifice in a relatively soft valve seat.
  • the needle valve is connected to a magnetic core and both are located in a marking liquid retaining chamber within a valve structure.
  • a magnetic solenoid coil is magnetically coupled to the core to retract the needle valve from its valve seat when energized by a short pulsed electric current.
  • a supply of marking liquid such as a photoluminescent ink is supplied with low pressure to the chamber.
  • the size of the orifice in the valve seat and the retraction distance of the needle valve as well as the pressure of the ink supply are selected commensurate with marking liquid viscosity to prevent atomization of liquid ejected from the valve orifice and preserve a laminar flow from the gun for the short instant of time that the needle valve is retracted.
  • the slug of marking liquid substantially vacates the orifice without leaving remnants that would clog the orifice.
  • relatively volatile marking liquids can be employed for quick drying marks without clogging of the orifice, even with long time periods between uses.
  • the low pressure employed in feeding the ink to the liquid pulsing gun is measured in the order of pounds per square inch, and advantageously reduces leakage of seals to a minimum.
  • a relatively soft material such as teflon may be used to form the valve seat, thus obtaining excellent sealing as well as reducing clogging by the marking liquid.
  • FIG. 1 is a perspective broken view of a system for marking articles conveyed past a marking station in accordance with the invention
  • FIG. 2 is a schematic representation of another system for marking articles in accordance with the invention.
  • FIG. 3 is a sectional view of a cohesive liquid pulse producing gun in accordance with the invention.
  • FIG. 4 is a partially exploded view of the elements employed in the liquid pulse producing gun of FIG. 3;
  • FIG. 5 is an enlarged broken view of a valve seat and nozzle employed in the cohesive liquid pulse producing gun of FIG. 3;
  • FIG. 6 is a perspective view of a core and needle valve employed in the liquid pulse producing gun of FIG. 3;
  • FIG. 7 is a section view of a modified core retaining capsule to provide stroke adjustments of the needle valve employed in a liquid pulse producing gun in accordance with the invention.
  • a system 10 is shown to mark articles such as 12 with liquid pulses at a marking station 14.
  • Articles 12 are in the form of boxes made of a material suitable for receiving the liquid pulses.
  • Articles 12 are continuously moved at a uniform speed past the marking station 14 by a conveyor 16 driven in the direction of arrow 17 by conventional means such as a motor (not shown).
  • liquid pulse producing guns 18 mounted on a bracket 20 and operatively aimed at articles 12.
  • the guns 18 are vertically spaced as well as longitudinally spaced from one another along the conveyor 16.
  • Each of the liquid pulsing guns 18 is supplied with a marking liquid such as the previously described photoluminescent ink retained in a common storage reservoir 22.
  • Reservoir 22 is vertically spaced from pulse generator on a bracket 24 so that the marking ink can be gravity fed through supply tubes 26 to each of the liquid pulse generators.
  • reservoir 22 may be pressurized by a source of pressurized air (not shown) to establish a desired pressure of the marking liquid in the guns.
  • An article sensor 28 is disposed over conveyor 16 to detect the presence of an article 12 opposite marking station 14.
  • Sensor 28 is in the form of an electrical switch 30 whose lever arm 32 is supplied with a roller 34 which, when it contacts side surfaces 36 of articles 12, produces an actuation of switch 30.
  • sensor 28 may be a suitably placed photodetector.
  • switch 30 in turn produces an electrical signal which is coupled through a cable 38 to advance a counter 40.
  • Counter 40 is coupled to a controller 42.
  • Controller 42 controls the delivery of square wave electrical enabling pulses to the cohesive liquid pulsing guns 18 in the desired sequence and with the desired duration for marking of an article such as 12" with an identifiable pattern of marks 44.
  • the pattern formed by the marks may be as varied as desired. As illustrated in FIG. 1, the marks 44 are applied in a slanted sequence with mark 44 for instance a reference mark from which the presence or absence of the other marks 44" and 44" in the sequence can be detected. Detection of photoluminescent marks 44 may be accomplished by illuminating the marks with ultraviolet light and sensing the resulting color radiations with suitable optics and photodetectors.
  • FIG. 3 illustrates a section view of a liquid pulse producing gun 18 which is capable of producing a cohesive liquid pulse free from atomization and capable of being ejected onto a distant article surface.
  • the liquid pulse generator 18 is formed of a valve structure 50, composed of a cylindrical valve body 52 and a core retaining cylindrical capsule 54.
  • Capsule 54 is of non magnetic stainless steel and fits in a solenoid coil 56.
  • Both the valve body 52 and the core capsule 54 are provided with bores 58-60 respectively, which are aligned as illustrated when connected together to form a marking liquid chamber 62.
  • the open end of core capsule 54 is flared to retain an externally threaded nut 64 which seals against the flare with an O ring 66.
  • a counter bore 68 in valve body 52 is provided with a screw thread, which meshes with nut 64, to firmly at-' coil 56.
  • a spring 82 acting on core 80 urges needle valve 78 against valve seat 70 to normally close orifice 74.
  • Actuation of solenoid coil 56 retracts the needle valve 78 from valve seat 70 until core 80 seats on a shoulder 84 of a core stop 86, made of a magnetic material, and located in bore 60 of capsule 54.
  • the spacing S between core 80 and core stop shoulder 84 determines the stroke of the needle valve 78.
  • Chamber 62 is supplied with marking liquid through a cylindrical passage 88 which is threaded to receive a screwed-in supply tube 26.
  • Core 80 is provided with an axial slot 90 to equalize the pressure at axial ends of the core 80.
  • the energization of the solenoid coil is obtained with a short duration electrical pulse, which causes a momentary retraction of needle valve 78 from seat 70, as measured in milliseconds. Generally a 2 to 3 millisecond opening of orifice 74 is desired.
  • orifice 74 The diameter and length of orifice 74 as well as the viscosity and pressure of the marking liquid in chamber 62 and the stroke S of the needle valve 78 play an important role in delivering a cohesive pulse or slug of marking liquid from the nozzle 72.
  • the orifice diameter D in the soft teflon valve seat 70 is smaller than the diameter D of the orifice in nozzle 72.
  • the length L of orifice 74 generally is selected to be sufficiently long to assure a cohesive liquid pulse which will maintain its cohesiveness until the liquid pulse encounters an article surface to be marked.
  • various marking liquids maybe employed with the liquid pulse generator depending upon the type of article surface to be marked.
  • a first type of marking liquid of a viscosity of between about 1,300 to about 1,600 centipoise a generally'round mark of about three-eights inch to one-half inch diameter was obtained without atomization of the liquid pulse using an orifice of three-eighths inch in length L and with a diameter D, of 0.030 inch and a diameter D of 0.040 inch.
  • the stroke S was 0.015 inch and the pressure of the marking liquid as measured in the chamber 62 was between 5 to 6 p.s.i.g.
  • a round non splatter mark was obtained at a distance of from about onefourth inch to about 1 inch from the nozzle 72.
  • the pulse time was approximately from 2 to 3 milliseconds.
  • a round mark was obtained with a marking liquid pressure of between about one-half to l p.s.i.g. in chamber 62 and with a stroke S of about 0.008 inch.
  • the pulse time was approximately from 2 to 3 milliseconds.
  • a round mark was obtained for distances from about 1 inch to about 4 inches from nozzle 72.
  • the short millisecond pulsing of the liquid pulse generator accomplishes several advantageous features.
  • a relatively high speed moving article (about 100 feet/min) may be marked while still obtaining a generally round mark on the article.
  • excellent repetitive control over the amount of liquid or size of the ejected slug of liquid can be maintained to prevent applying excessive amounts of liquid to the article surface.
  • Several marks can be applied in rapid succession.
  • the valve seat 70 and the nozzle 72 may be made of a single piece having the desired softness of teflon at the valve seat end.
  • the length of the orifice 74 should be greater than one-fourth inch and have an optimum length at about three-eighths inch to about one-half inch long.
  • the orifice 74 when formed in a' unified valve seat and nozzle piece may have the same diameter throughout. The diameter of the orifice may vary depending upon the pressure of the liquid in chamber 62 and the size of stroke S.
  • the liquid pulse generator 18 operates with a low pressure liquid. Generally, pressures less than p.s.i.g. are capable of producing a liquid pulse without atomization or spraying effect. Low pressures reduce sealing problems and enhance the durability of the generator. The small strokes of the needle valve reduce the mechanical movements to further enhance the generators operative lifetime.
  • a stroke adjustment is provided at the rear of the core capsule 54.
  • the magnetic core stop 86 is slidably mounted in the bore 60 of capsule 56.
  • a screw 100 is axially captured in a rear bore 102 of core stop 86 with pins 104 so that screw 100 may freely rotate relative to core stop 86.
  • Screw 100 is threaded through an end flange 106 located in bore 60 and sealed against the bore wall with an 0 ring 108. Screws l0 affix end flange 106 to capsule 54.
  • a hex lock nut 112 with a seal is provided to lock and seal the position of screw 100 after the desired stroke S between core stop 86 and core 80 has been established.
  • the portion of the capsule bore in rear of core stop 86 is pressure equalized with an axial slot 14.
  • the marks produced by the liquid pulses may be optimized for size and shape.
  • An increase in stroke width S allows a larger liquid pulse to be generated while reduction of the stroke reduces the liquid pulse.
  • Stroke variation further allows for adjustments for changes in the characteristics of the marking liquid such as viscosity, pressure and the like.
  • FIG. 2 illustrates the use of the liquid pulse producing gun 18 as a modulator device.
  • the guns 18 are shown stacked upon one another with their marking liquid chambers connected in series with a marking liquid storage reservoir 22.
  • a pressure regulator 1 l0 pressurizes the marking liquid to a low pressure of generally less than 10 p.s.i. g.
  • Sensing of an article 12 produces, from switch 36), an electrical signal to controller 42 which generates a series of short solenoid electrical enabling pulses of generally 2 to 3 millisecond duration.
  • the enabling pulses energize the coils 56 of each of the liquid pulse generators to correspondingly momentarily retract the needle valves.
  • Rapid firing of the liquid pulse generators may be done to deposit a pattern of non-splattered marks on an article.
  • the circuitry employed with the controller 42 may produce any desired arrangement of square wave pulses to the solenoids.
  • the marks may be deposited in vertical or horizontal patterns and with different colored marking liquids as desired.
  • the pattern of the electrical square wave pulses is accurately controlled with conventional pulse forming circuitry.
  • a system for automatic remote marking of articles with machine detectable sharply defined marks comprising means for moving articles to be marked past a marking station, means for detecting the presence of an article at the marking station and producing an article signal representative thereof, a liquid pulse producing gun and a supply of marking liquid operatively coupled to the gun, said liquid being supplied to the gun under substantially continuous, uniform pressure, said pressure being within a predetermined low pressure range selected commensurate with liquid viscosity to ejecta cohesive liquid pulse from the gun, said liquid pulsing gun having a liquid pulse ejecting orifice selectively sized to enhance the cohesiveness of the liquid pulse and a retractable valve seated to normally close the orifice, with said gun orifice poised to eject a cohesive pulse of liquid substantially horizontally onto a side of an article moving past the station with the spacing between orifice and the article sufficiently close to preserve the cohesiveness of the ejecting liquid pulse until its deposit on the sensed article, means responsive to the article signal for retracting the valve from the orifice for a

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Nozzles (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
US00016712A 1970-03-05 1970-03-05 Apparatus for remote marking of articles of manufacture Expired - Lifetime US3730133A (en)

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US1671270A 1970-03-05 1970-03-05

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US (1) US3730133A (enrdf_load_stackoverflow)
DE (1) DE2110659A1 (enrdf_load_stackoverflow)
FR (1) FR2084091A5 (enrdf_load_stackoverflow)
GB (1) GB1297840A (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865073A (en) * 1967-07-08 1975-02-11 Leonard G Jahn Material marking apparatus
US3951103A (en) * 1971-10-22 1976-04-20 British Steel Corporation Apparatus for creating protective coatings on carbon articles
US4390883A (en) * 1981-09-08 1983-06-28 The Mead Corporation Fluid jet print head and method of terminating operation thereof
US5303441A (en) * 1989-11-18 1994-04-19 Dawson Ellis Limited Method and apparatus for delivering metered quantities of fluid
US5315927A (en) * 1992-12-04 1994-05-31 Yeh Chin Chen Automatic printing apparatus for a packing case carried on a conveyor belt unit
WO2002004297A1 (en) * 2000-07-11 2002-01-17 G.D S.P.A. A device for feeding cigarette packets out of a packing machine
US20040259457A1 (en) * 2002-03-15 2004-12-23 Hyug-Jin Kweon Liquid crystal dispensing apparatus
US20070006765A1 (en) * 2005-06-29 2007-01-11 Comital S.P.A. Decorating an elongated element
US20110018949A1 (en) * 2009-07-22 2011-01-27 Fuji Xerox Co., Ltd. Image position detecting device and image forming apparatus using the same
CN104307657A (zh) * 2014-10-15 2015-01-28 山东钢铁股份有限公司 一种连铸机在线喷号机及在线喷号方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131353A (en) * 1982-12-13 1984-06-20 Byteissue Limited Cheque printing apparatus
GB9717776D0 (en) * 1997-08-21 1997-10-29 Procter & Gamble Printing process and apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3252441A (en) * 1963-06-14 1966-05-24 Cox & Sharland Ltd Apparatus for applying glue and like adhesives
US3279422A (en) * 1963-08-01 1966-10-18 Sucrest Corp Icing machine
US3280860A (en) * 1963-03-27 1966-10-25 Eureka Carlisle Company Fluid dispenser
US3482544A (en) * 1967-07-24 1969-12-09 John Verkaik Fluid ejection apparatus
US3496907A (en) * 1965-04-07 1970-02-24 Spillers Ltd Oiling of dough pieces

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3280860A (en) * 1963-03-27 1966-10-25 Eureka Carlisle Company Fluid dispenser
US3252441A (en) * 1963-06-14 1966-05-24 Cox & Sharland Ltd Apparatus for applying glue and like adhesives
US3279422A (en) * 1963-08-01 1966-10-18 Sucrest Corp Icing machine
US3496907A (en) * 1965-04-07 1970-02-24 Spillers Ltd Oiling of dough pieces
US3482544A (en) * 1967-07-24 1969-12-09 John Verkaik Fluid ejection apparatus

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865073A (en) * 1967-07-08 1975-02-11 Leonard G Jahn Material marking apparatus
US3951103A (en) * 1971-10-22 1976-04-20 British Steel Corporation Apparatus for creating protective coatings on carbon articles
US4390883A (en) * 1981-09-08 1983-06-28 The Mead Corporation Fluid jet print head and method of terminating operation thereof
US5303441A (en) * 1989-11-18 1994-04-19 Dawson Ellis Limited Method and apparatus for delivering metered quantities of fluid
US5315927A (en) * 1992-12-04 1994-05-31 Yeh Chin Chen Automatic printing apparatus for a packing case carried on a conveyor belt unit
US20030146068A1 (en) * 2000-07-11 2003-08-07 Roberto Polloni Device for feeding cigarette packets out of a packing machine
WO2002004297A1 (en) * 2000-07-11 2002-01-17 G.D S.P.A. A device for feeding cigarette packets out of a packing machine
US6843172B2 (en) 2000-07-11 2005-01-18 G.D. S.P.A. Device for feeding cigarette packets out of a packing machine
US20040259457A1 (en) * 2002-03-15 2004-12-23 Hyug-Jin Kweon Liquid crystal dispensing apparatus
US7351127B2 (en) * 2002-03-15 2008-04-01 Lg.Philips Lcd Co., Ltd. Liquid crystal dispensing apparatus
US20070006765A1 (en) * 2005-06-29 2007-01-11 Comital S.P.A. Decorating an elongated element
US20110018949A1 (en) * 2009-07-22 2011-01-27 Fuji Xerox Co., Ltd. Image position detecting device and image forming apparatus using the same
CN104307657A (zh) * 2014-10-15 2015-01-28 山东钢铁股份有限公司 一种连铸机在线喷号机及在线喷号方法

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Publication number Publication date
DE2110659A1 (de) 1971-09-16
GB1297840A (enrdf_load_stackoverflow) 1972-11-29
FR2084091A5 (enrdf_load_stackoverflow) 1971-12-17

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