EP0120072B1 - An improved mounting cup and method of making same - Google Patents

An improved mounting cup and method of making same Download PDF

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Publication number
EP0120072B1
EP0120072B1 EP83903276A EP83903276A EP0120072B1 EP 0120072 B1 EP0120072 B1 EP 0120072B1 EP 83903276 A EP83903276 A EP 83903276A EP 83903276 A EP83903276 A EP 83903276A EP 0120072 B1 EP0120072 B1 EP 0120072B1
Authority
EP
European Patent Office
Prior art keywords
mounting cup
aerosol container
mounting
plastics
aerosol
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
EP83903276A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0120072A1 (en
EP0120072A4 (en
Inventor
Michael G. Knickerbocker
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.)
Seaquist Perfect Dispensing LLC
Original Assignee
Seaquist Valve Co
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 Seaquist Valve Co filed Critical Seaquist Valve Co
Priority to AT83903276T priority Critical patent/ATE52478T1/de
Publication of EP0120072A1 publication Critical patent/EP0120072A1/en
Publication of EP0120072A4 publication Critical patent/EP0120072A4/en
Application granted granted Critical
Publication of EP0120072B1 publication Critical patent/EP0120072B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/38—Details of the container body

Definitions

  • This invention relates to fluid sprinkling and more particularly to forming a fluid-tight seal between a mounting cup and an aerosol container.
  • the aerosol industry has undergone dramatic and substantial changes since the birth of the industry many decades ago. It has been a constant desire of the aerosol industry to increase the reliability of the aerosol devices while simultaneously reducing the manufacturing and the consumer costs of the aerosol device.
  • Each individual part of the aerosol device has been investigated in an attempt to reduce the part cost as well as the cost of assembly of the aerosol device.
  • the time required to fabricate each individual part as well as the time required to fabricate the device has been investigated in a continuing attempt to further reduce the cost of aerosol devices. If a single step in the assembly process can be accomplished in a shorter period of time, a substantial reduction in overall cost will be realized by the increase in production.
  • the aerosol mounting cup is fabricated by first stamping a sheet material through a progressive die to form the mounting cup turret with a central through aperture and peripheral sealing rim for sealing with an annular bead disposed on the aerosol container.
  • the stamped mounting cups are oriented for enabling a solvent based gasket material to be poured into the rim of the mounting cup.
  • the solvent based gasket material is allowed to set at room temperature for approximately one hour and is then progressively passed through three curing ovens.
  • the three progressive ovens are typically set at 150°C, 250°C and 350°C.
  • the mounting cup is placed in each oven for approximately one hour in order to remove the solvent totally from the solvent based coating and gasket material and to leave a solvent residue of rubber to effect the seal between the mounting cup and the aerosol container.
  • the heated mounting cups are allowed to cool to proper handling temperature prior to assembly with the aerosol valve and dip tube.
  • this prior art process requires approximately four and one-half hours of time for each mounting cup to provide a suitable coating for sealing with the aerosol container.
  • the solvent based coating and gasket material is allowed to flow into the mounting cup lip, the resultant solid residue of rubber is irregular in thickness and may result in a defective seal between the mounting cup and the aerosol container.
  • U.S. Patent 3,417,177 illustrates a sealing gasket for an aerosol mounting cup formed by positioning a circular band of heat-shrinkable material over a portion of the skirt of the cup. The mounting cup is then heated to shrink the band of material into frictional contact with the skirt of the mounting cup.
  • U.S. Patent 3,443,006 pertains to a method of making a gasketed closure element by swelling a band of gasket material and positioning the band of gasket material about the skirt of the mounting cup. The band of gasket material is then allowed to return to a normal condition to be in frictional engagement with the mounting cup skirt.
  • US ⁇ A ⁇ 4,000,338 relates to a coating process using a vibratory bowl for producing a protective coating.
  • US ⁇ A ⁇ 3,864,798 discloses a method of encapsulating an end contacted electrical component with a layer of synthetic resin material by placing the component in a reservoir containing a suspended synthetic resin powder and heating the component indirectly by inductance using high frequency current to fuse powder deposited on the component to form the synthetic resin layer.
  • US ⁇ A ⁇ 4,183,974 discloses a method of coating a cylindrical container with a thin, resinous coating by spraying resin particles into a beverage container.
  • the container may be sprayed by directing a pulse of a predetermined quantity of resin into the container to deposit a substantially uniform coating or a continuous flow of resin at a predetermined rate.
  • the resin particles are caused to adhere to the container by preheating the container to temperatures above the softening point of the resin. Post heating of the coated container also takes place.
  • US-A-3,503,778, GB-A-1,163,041, DE-A-2,539,880 and US ⁇ A ⁇ 3,197,324 all disclose methods of coating an article with plastics material by heating the article sufficiently and applying particulate plastics material which then melts and forms a continuous layer.
  • this invention seeks to provide an improvement which is a significant contribution to the advancement of the aerosol art.
  • the present invention provides an aerosol valve and mounting cup assembly for an aerosol container having a container sealing bead disposed about an upper opening in the aerosol container comprising:
  • the present invention also provides a method of fabricating the aerosol valve and mounting cup assembly for an aerosol container having a container sealing bead disposed about an upper opening in the aerosol container comprising:
  • the aerosol container includes a container sealing bead disposed about the periphery of an opening in the aerosol container.
  • a rim is disposed about the periphery of the mounting cup for cooperation with the bead of the aerosol container.
  • the sealing gasket is formed by fusing plastic particles to the heated mounting cup to provide a continuous plastic coating upon the entire interior and exterior surface of the mounting cup for providing a seal between the mounting cup and the aerosol container and for protecting the interior and exterior surface of the mounting cup.
  • the coating provides a uniform coating on the mounting cup rim and may be colored to provide an integral color code for the mounting cup.
  • the invention may also be incorporated into an apparatus and method of coating mounting cups incorporating a non-metallic vessel for receiving plastic particulate material therein.
  • the mounting cups are introduced into the vessel and are moved within the plastic particulate material.
  • An induction heater is disposed adjacent the non-metallic vessel for heating the mounting cups when the mounting cups are immersed in the plastic particulate material to form a continuous plastic coating thereon.
  • the coated mounting cups are then discharged from the vessel and are fused by either induction heating or conventional convection heating.
  • Fig. 1 illustrates a side sectional view of a prior art aerosol mounting cup and valve assembly 10 which should be well known to those skilled in the art.
  • the assembly comprises a mounting cup 12 having a central turret 14 and a mounting rim 16 extending about the outer periphery thereof.
  • the turret 14 receives an aerosol valve assembly which may be of various designs to operate between an interior surface 17 and an exterior surface 18.
  • a valve body 19 communicates with the interior of the aerosol container through a dip tube 20.
  • a valve stem 22 is biased by a spring 24 into sealing engagement with a sealing gasket 26 for controlling the flow of product and propellant through a metering orifice 28 communicating to a valve stem aperture 30.
  • the mounting rim 16 is provided with a sealing gasket 32 which is generally a solvent-based rubber material which forms a seal with a bead 34 of an aerosol container 36 as shown more fully in Fig. 2.
  • a sealing gasket 32 which is generally a solvent-based rubber material which forms a seal with a bead 34 of an aerosol container 36 as shown more fully in Fig. 2.
  • the mounting cup rim 16 is inserted on the aerosol container bead 34 with a region 38 of the mounting cup rim being deformed to form a fluid-tight seal through the coating 32 on the mounting cup rim 16.
  • Fig. 3 illustrates a mounting cup and aerosol valve assembly 10A in accordance with the present invention.
  • the sealing gasket and coating 32A extends along the entire interior surface 17A of the mounting cup in addition to the coating 32B extending along the entire exterior surface 18A.
  • Fig. 4 illustrates the mounting cup 12A of Fig. 3 forming a seal with the sealing bead 34 of aerosol container 36 through deformed region 38A in a conventional manner as shown in Fig. 2.
  • FIG. 5 illustrates the steps in the formation of the mounting cup 12 shown in Fig. 1 under a prior art practice.
  • a ribbon of roll stock 41 disposed on a drum 42 is passed through a series of progressive dies 44 to form the contour of the mounting cup 12 shown in Fig. 1.
  • the formed mounting cups 12 are severed from one another and passed through an orienter 46 which orients the mounting cups 12 such that the interior surface 17 is face up, enabling an applicator 48 to apply a solvent-based coating and gasket material 32 to flow into the mounting cup rim 16.
  • the mounting cups 12 are allowed to remain at an ambient temperature station 50 for a period of approximately one hour.
  • the mounting cups are passed through progressive ovens 51, 52 and 53 which respectively have temperatures of approximately 150°C, 250°C and 350°C.
  • the mounting cups 12 remain in each individual oven 51-53 for a period of one hour prior to being removed and cooled in position 54.
  • the mounting cups may be fabricated in a conventional manner as should be well known to those skilled in the art.
  • Fig. 6 illustrates the steps in the formation of the mounting cup 12A shown in Fig. 3 under the present invention.
  • the ribbon of roll stock 41 is disposed on a drum 42 to be passed through a series of progressive dies 44A to form the contour of the mounting cups 12A shown in Fig. 3.
  • the progressive dies 44A form the contour of the mounting cups 12A but do not sever the mounting cups 12A from one another as shown in Fig. 7.
  • the mounting cups 12A are held together by tabs 12B in a ribbon 55 eliminating the need for the orienter 46 of Fig. 5.
  • the ribbon 55 of formed mounting cups 12A is carried by rollers 56 and 58 through an oven 60 to heat the mounting cup to a temperature sufficient to melt a selected plastic particulate material.
  • the selected plastic material 62 is disposed in a vessel 64 having an input 66 and an output 68.
  • the plastic material is preferably finely ground powder of virtually any fusible plastic material capable of forming the desired seal and being able to associate with the product and propellant within the aerosol container.
  • Rollers 58 and 70 move the heated mounting cups 12A on ribbon 55 through vessel 64 enabling the plastic particles 62 to fuse to the internal and external surfaces 17A and 18A.
  • the temperature of oven 60, the speed of ribbon 55 and the distance between the input 66 and output 68 of vessel 64 must be interrelated to produce a proper coating to the mounting cups 12A.
  • the process is also dependent on the type of plastic selected and the particle size of the plastic powder. However, one skilled in the art could readily adjust these conditions to provide a proper coating for the specific use of the invention.
  • the ribbon 55 of mounting cups 12A exit vessel 64 through output 68 and are carried by rollers 70 and 72 through a fusing oven 74.
  • the fusing oven 74 which may be optional in some applications, creates a unitary coating on the interior and exterior surfaces 17A and 18A of the mounting cups 12A.
  • the mounting cup ribbons 55 are then severed from one another by a cutter 76 which cuts tabs 12B.
  • the individual mounting cups 12A are ejected from cutter 76 for subsequent assembly with the valve mechanism.
  • Fig. 8 is a second method of forming the mounting cup 12A shown in Fig. 3.
  • a ribbon of roll stock 41 disposed on a drum 42 is passed through a series of progressive dies 44A to form the contour of mounting cup 12A shown in Fig. 3.
  • the formed mounting cups 12A are severed from one another and passed through an oven 80 on a conveyor 82 driven by rollers 84 and 86.
  • the oven 80 is sufficient to heat the mounting cups to a temperature to melt a preselected plastic material.
  • the heated mounting cups are carried by a conveyor 88 driven between rollers 86 and 90 to a vibratory bowl 92 driven by a motor 94 shown more particularly in Fig. 9.
  • the vibratory bowl 92 has a central portion 95 for receiving the mounting cups 12A.
  • a channel 96 is defined between side walls 98 and 100 enabling the mounting cups 12A to move along the path to an exit 102 along channel 96.
  • the channel 96 is arranged such that the mounting cups are preferably disposed at an acute angle, namely that neither the internal or external surfaces 17A or 18A are disposed facing a vertical direction as shown in Fig. 9A.
  • the inclined position of the mounting cups 12A eliminates the formation of bubbles adjacent the interior and exterior surfaces 17A and 18A which will cause a defective coating. Accordingly, the mounting cups 12A essentially roll as inclined wheels along channel 96.
  • the interior of the vibratory bowl 92 includes plastic particles 62 enabling a substantially uniform coating to be provided to the interior and exterior 17A and 18A of the mounting cup 12A.
  • the coated mounting cups emanating from output 102 are passed to a conveyor 104 driven by rollers 106 and 108 through a fusing oven 110 which completes the fusing process of the coating on the mounting cups 12A.
  • the function of the vibratory bowl 92 should be well known to those skilled in the art.
  • Fig. 10 illustrates the steps of forming the mounting cup 12A shown in Fig. 3 under a third method and apparatus.
  • a ribbon of roll stock 41 disposed on a drum 42 is passed through a series of progressive dies 44 to form the contour of the mounting cup 12A shown in Fig. 3.
  • the formed mounting cups 12A are severed from one another and passed through an orienter 46 which orients the mounting cups 12A into a preferred orientation.
  • the oriented mounting cups 12A are discharged from orienter 46 into an input 120 of a vessel 122.
  • the vessel 122 is a non-metallic vessel containing plastic particulate material 62.
  • the mounting cups 12A pass along a channel 124 and are totally immersed within the plastic particulate material 62.
  • An induction heating coil 126 is connected to an induction heating generator 128 shown in Fig. 11 to induce eddy currents within the metallic mounting cups 12A to heat the mounting cups while the mounting cups are immersed within the plastic particulate material 62.
  • the heated mounting cups 12A melt the plastic particulate material 62 adjacent the metallic surfaces thereof and are coated to form a uniform resilient plastic coating to form a protective coating and a sealing gasket as shown in Figs. 3 and 4.
  • the coated mounting cups 12A are expelled from the vessel 122 by a discharge means 130 and are placed on a conveyor 132 driven by rollers 134 and 136.
  • the conveyor 132 is preferably non-metallic and made of a material which will inhibit the adhesion of the plastic particulate material 62 coated on the mounting cups 12A.
  • the coated mounting cups 12A are passed through a second induction heating coil 138 connected to an induction generator 140 shown in Fig. 11 to induce eddy currents within the mounting cups 12A and thus fuse the plastic particulate material adhering to the mounting cups into a uniform resilient plastic coating which is suitable for forming a resilient sealing gasket and a protective coating.
  • the mounting cups 12A are then discharged from conveyor 132.
  • Fig. 11 illustrates a specific example of the vessel 122 shown in Fig. 10 with a specific means for moving the mounting cups 12A through the vessel 122.
  • the apparatus includes a frame 142 and a linear vibrator 144 for supporting the vessel 122 through support arms 145.
  • the linear vibrator 144 causes movement of the mounting cups 12A from left to right in Fig. 11.
  • the vessel 122 contains the plastic particulate material 62 and includes a flexible coupling 146 connected by conduit 147 to a pump 148.
  • the pump 148 which may be of various types such as augers, impellers or other pumps suitable for pumping plastic particulate material, forces the plastic particulate material through conduit 149 terminating in orifice 150 adjacent an input support surface 152.
  • the apparatus illustrates input means 120 providing mounting cups 12A to the vessel 122.
  • the plastic particulate material 62 is discharged from orifice 174 onto a support surface 152 and passed over an edge 154.
  • the free-falling plastic particulate material 62 is aerated by the free-fall from input surface 152.
  • the mounting cups 12A are introduced into the stream of aerated plastic particulate material by input means 120 at 121.
  • the kinetic energy developed by the falling mounting cups 12A is of a sufficient level to insure that each mounting cup is completely immersed within the aerated plastic particulate material 62 prior to induction heating.
  • the mounting cups 12A move towards the right through induction heating coil 126 as was heretofore explained.
  • Fig. 12 illustrates a sectional view along line 12-12 showing the mounting cup 12A within a channel 124 formed by vessel 122 and within the induction heating coil 126. It has been found that when a mounting cup is completely immersed within the plastic particulate material 62, that the mounting cup will, in many instances, maintain the given attitude such as the vertical attitude along the channel 124 in vessel 122.
  • the coated mounting cups 12A move toward the discharge means 130 shown more specifically in Fig. 13.
  • the discharge means which is secured to vessel 122 to vibrate therewith includes support members 160 and 162 for supporting porous means 164, such as a screen, enabling the mounting cup 12A to discharge the unmelted plastic particulate material 165 on the exterior surface 18A of the mounting cup in Fig. 13 into the vessel 122 under vibration of the linear vibrator 144.
  • a vacuum head 166 connected by pipe 168 to a partial vacuum 170 removes any unmelted particulate material 171 from the interior surface 17A of the mounting cup 12A.
  • Unmelted plastic particulate material is similarly removed from the interior and exterior surface 17A and 18A in the event the mounting cup 12A is inverted with respect to Fig. 13.
  • the plastic particulate material removed by the vacuum head 166 is discharged through a conduit 172 to be recycled proximate the input support surface 152 by discharge orifice 174.
  • Fig. 14 illustrates a sectional view along line 14-14 illustrating the conveyor 132, the mounting cup 12A within the induction heating coil 138.
  • a high temperature of approximately 315°C (600°F) is required to properly melt a suitable plastic particulate material such as polyethylene within the vessel 122 for a sealing gasket and protective coating.
  • a suitable plastic particulate material such as polyethylene within the vessel 122 for a sealing gasket and protective coating.
  • mounting cups disposed in an oven at 315°C (600°F) for more than three minutes experience discoloration due to the melting of the tin coating.
  • tin coated mounting cups can withstand a heating of 315°C (600°F) for less than three minutes without discoloration. Accordingly, the present invention enables the very rapid heating of the mounting cups for proper coating without the discoloration of any tin coating on the mounting cup. For example, in the process shown in Figs.
  • mounting cups 12A are subjected to a temperature of approximately 315°C (600°F) for a period of one minute in ovens 60 or 80. Typically the coating process requires less than twenty seconds.
  • the mounting cups 12A may then be fused in ovens 74 or 110 at a temperature of approximately 315°C (600°F) for a period of less than one minute.
  • the mounting cups 12A are typically heated to the required temperature in a matter of approximately three seconds with the total coating operation taking less than twenty seconds. Fusing by induction coil 138 normally requires less than three seconds. It should be understood that the above parameters are by way of example only and should not be construed to be a limitation on the present invention.
  • the mounting cups are rapidly heated to approximately 315°C (600°F) with the induction heating coil for providing the adherence of the plastic particulate material to the mounting cup.
  • the power required by the induction generator is, in part, determined by the geometry of the induction heating coil as well as the type of plastic particulate material, the particle size of the plastic particulate material, and the speed at which the mounting cups 12A are passed through the induction heating coil. It should be appreciated by those skilled in the art that these parameters may be varied depending on the particular application.
  • Fig. 10 also illustrates an optional step of rapidly cooling the mounting cups 12A after discharge from conveyor 132.
  • the rapid cooling means is illustrated by a fluid bath including a fluid 180 shown as a liquid within a container 182 for rapidly cooling the mounting cups after proper fusion of the uniform protective coating and resilient sealing gasket by induction heating coil 138.
  • the cooling bath further inhibits the discoloration of the mounting cup by rapidly reducing the temperature of the mounting cup after fusion of the plastic coating.
  • the rapid cooling means shown as a liquid bath may be substituted by various cooling means and may be incorporated into all of the embodiments shown in the present application.
  • Plastic material such as polyethylene, polypropylene, vinyl, nylon, acetate or other plastic materials may be utilized with this invention. It has been found that the most satisfactory material for use with the present invention is plastic material which is cryogenically ground to be within 4x10- 4 to 7x10- 4 cm (4-7 microns) in particle size as depicted by Figure 15.
  • Fig. 15 illustrates a surface 12A of the mounting cup with a plurality of particles of plastic material 32A disposed thereon.
  • the particles size of the individual particles 62 enables a close spacing and a uniform coating thickness as shown in Fig. 15.
  • Fig. 16 illustrates a similar embodiment of a portion of mounting cup 12A with a coating 32C of particles 62C of larger particle size. Voids 112 within the coating surface are experienced by plastic particles having a larger particle size.
  • the prior art mounting cups typically use a precoated steel having a 0.23 Kg (one-half pound) of tin plate to 45.5 Kg (100 pounds) of steel.
  • reduced tin plate or black plate steel may be utilized in lieu of normally used tin plated steel, resulting in a substantial savings in material costs.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Table Devices Or Equipment (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP83903276A 1982-09-28 1983-09-26 An improved mounting cup and method of making same Expired EP0120072B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83903276T ATE52478T1 (de) 1982-09-28 1983-09-26 Bodenteller und verfahren zu seiner herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42553682A 1982-09-28 1982-09-28
US425536 1982-09-28

Publications (3)

Publication Number Publication Date
EP0120072A1 EP0120072A1 (en) 1984-10-03
EP0120072A4 EP0120072A4 (en) 1986-04-15
EP0120072B1 true EP0120072B1 (en) 1990-05-09

Family

ID=23686981

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83903276A Expired EP0120072B1 (en) 1982-09-28 1983-09-26 An improved mounting cup and method of making same

Country Status (7)

Country Link
EP (1) EP0120072B1 (it)
JP (1) JPS59501743A (it)
AU (1) AU576740B2 (it)
CA (1) CA1232581A (it)
DE (1) DE3381538D1 (it)
IT (1) IT1197726B (it)
WO (1) WO1984001356A1 (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4792067B1 (en) * 1985-05-13 1999-02-16 Aptargroup Inc Mounting cup
EP0258299B1 (en) * 1986-01-30 1990-05-16 Bespak plc Collapsible chamber metering valves
IT1223451B (it) * 1987-11-24 1990-09-19 Coster Tecnologie Speciali Spa Procedimento per ottenere fondelli metallici protetti per valvole per aerosol e simili
DE69414369T2 (de) * 1993-01-19 1999-05-27 Glaxo Group Ltd., Greenford, Middlesex Aerosol-spender und verfahren zu seiner herstellung
US5881929A (en) * 1997-04-25 1999-03-16 Summit Packaging Systems, Inc. Plastic coated mounting cup for spray button seal
US6161599A (en) 1999-04-15 2000-12-19 Summit Packaging Systems, Inc, Actuator with a longitudinal filling passageway communicating with each formed internal compartment
US6152190A (en) * 1999-04-15 2000-11-28 Summit Packaging Systems, Inc. Actuator with resilient annular skirt for improved seal during button-on-filling process
FR2823183B1 (fr) * 2001-04-04 2003-08-15 Valois Sa Capsule metallique de sertissage pour un dispositif de distribution de produit fluide
FR2845357B1 (fr) * 2002-10-07 2005-09-16 Valois Sas Dispositif de fixation et distributeur comprenant un tel dispositif de fixation

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Publication number Priority date Publication date Assignee Title
US2047076A (en) * 1934-05-11 1936-07-07 Continental Can Co Method of making a metal container for beer
US2676899A (en) * 1951-04-04 1954-04-27 Kaiser Metal Products Inc Method of coating foraminous metal with vitreous enamel
US3197324A (en) * 1958-10-22 1965-07-27 Internat Protected Metals Inc Coating continuous material
DE1571038A1 (de) * 1965-10-15 1970-10-22 Knapsack Ag Verfahren zum Aufbringen von glatten UEberzuegen aus schmelzbaren Stoffen auf Gegenstaende mit geringen Abmessungen
US3503778A (en) * 1967-10-30 1970-03-31 Nat Distillers Chem Corp Method of coating a substrate with a plastic material
US3512685A (en) * 1968-04-25 1970-05-19 Seaquist Valve Co Aerosol container
FR2193687B1 (it) * 1972-07-26 1978-03-10 Burdin Jacques
DE2243203B2 (de) * 1972-09-01 1976-08-12 Siemens AG, 1000 Berlin und 8000 München Verfahren zum umhuellen eines stirnkontaktierten elektrischen bauelements
US4183974A (en) * 1974-01-02 1980-01-15 W. R. Grace & Co. Container coating method
DE2539880A1 (de) * 1975-09-08 1977-03-10 Siemens Ag Verfahren zur herstellung von kunststoffueberzuegen durch wirbelsintern
WO1983002437A1 (en) * 1982-01-20 1983-07-21 Knickerbocker, Michael, G. Aerosol mounting cup

Also Published As

Publication number Publication date
CA1232581A (en) 1988-02-09
EP0120072A1 (en) 1984-10-03
AU576740B2 (en) 1988-09-08
IT8349059A0 (it) 1983-09-28
JPS59501743A (ja) 1984-10-18
EP0120072A4 (en) 1986-04-15
WO1984001356A1 (en) 1984-04-12
IT1197726B (it) 1988-12-06
DE3381538D1 (de) 1990-06-13
AU2120283A (en) 1984-04-24

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