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WO1993000174A1 - Procede et appareil de sechage - Google Patents

Procede et appareil de sechage Download PDF

Info

Publication number
WO1993000174A1
WO1993000174A1 PCT/AU1992/000318 AU9200318W WO9300174A1 WO 1993000174 A1 WO1993000174 A1 WO 1993000174A1 AU 9200318 W AU9200318 W AU 9200318W WO 9300174 A1 WO9300174 A1 WO 9300174A1
Authority
WO
WIPO (PCT)
Prior art keywords
coating
article
carrier
retention means
rate
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.)
Ceased
Application number
PCT/AU1992/000318
Other languages
English (en)
Inventor
Frank Anthony Matich
Paul Charles Wong
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1993000174A1 publication Critical patent/WO1993000174A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B05B13/00—Machines 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
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
    • B05B13/0235—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts the movement of the objects being a combination of rotation and linear displacement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/18—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
    • F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
    • F26B15/122—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of material being carried by transversely moving rollers or rods which may rotate
    • F26B15/128—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of material being carried by transversely moving rollers or rods which may rotate the rods being attached at one end to an endless conveying means, the other end being free to receive hollow articles, e.g. cans

Definitions

  • the present invention relates to drying an article and in particular to a method and apparatus for drying an article having a coating including a carrier.
  • Prior helmet coatings have been required to be highly viscous such that when applied to a helmet or other article they will form a thick protective layer. Consequently, the coating will be less likely to intimately bond to the surface of the article resulting in increased likelihood of cracking and chipping.
  • a method for drying an article having a coating including a carrier including the steps of: (a) applying the coating to the article;
  • air or other gases are passed over the applied coating to facilitate removal of the carrier. More preferably, the air or gas are heated above atmospheric temperature, and more preferable maintain the coating above 25°C.
  • the article is rotated at a varied rate as the carrier is removed to compensate for changes in viscosity of the coating.
  • an apparatus for drying an article having a coating including a carrier, the apparatus including: a body for supporting at least one article having the coating applied thereto; retention means projecting from the body for receiving the article for rotation with respect to the body; and drive means for rotating the retention means whereby the coating oscillates across at least a portion of the article as the carrier is being removed from the coating.
  • the body includes a plurality of retention means which are rotated at a variable rate as the carrier is being removed to compensate for changes in viscosity of the coating.
  • the body also rotatably supports the article during application of the coating.
  • the rate of rotation during the application is greater than the rate of rotation during the subsequent drying.
  • the axis of rotation of the retention means is substantially horizontal.
  • the apparatus includes a plurality of elongate spaced apart cylindrical retention means extending outwardly from and in substantially the same plane as a generally horizontal body.
  • the retention means are interlinked and progress about an endless loop while being axially rotated.
  • the coating is applied to the articles, with the speed of rotation of the article during that application being increased so as to minimise the application time.
  • the body is elongate such that an operator is able to remove or place further articles on the retention means while not being exposed to any vapours produced during the application of the coating.
  • a method for applying to an article a coating including a carrier including the steps of: mounting the article for rotation; applying the coating while rotating the article; and rotating the article following the application of the coating such that the coating oscillates across at least a portion of the article as the carrier is being removed from the coating.
  • the article is rotated at a first and a second rate respectively, where the first rate is greater than the second rate.
  • the article is rotated about a substantially horizontal axis.
  • the article is rotated until sufficient carrier has been removed to effect an intimate bond between the article and coating.
  • apparatus for applying to an article a coating including a carrier including: a body for supporting at least one article; retention means projecting from the body for receiving the article; applicator means for applying the coating to the article; and drive means for rotating the retention means with respect to the body during the application of the coating to the article, wherein following that application the retention means is rotated such that the coating oscillates across at least a portion of the article as the carrier is being removed from the coating.
  • the article is rotated at a first and a second rate during and following the application of the coating respectively, wherein the first rate is greater than the second rate.
  • Figure 1 is a helmet shell
  • Figure 2 is a support for the helmet of Figure 1;
  • Figure 3 is one embodiment of an apparatus for rotating a plurality of helmets of Figure 1;
  • Figure 4 is a schematic perspective view of a second embodiment of an apparatus for rotating a plurality of helmets of Figure 1;
  • Figure 5 is a cross section through one of the pogo supports of Figure 4. MODES FOR CARRYING OUT THE INVENTION
  • a polystyrene helmet shell 1 to be coated with a water based epoxy includes an inside 2, an outside 3 and an opening 4 for receiving a wearer's head.
  • Helmet shell 1 is mounted on a support 5, as best shown in Figure 2, such that plate 6 engages the inside 2 of the helmet at or adjacent opening 4. Plate 6 is fixed to inside 2 by adhesive tape or other similar means. Support 5 is hereinafter referred to as a pogo stick.
  • a coating of water based epoxy is applied to helmet shell 1 in one of many known methods such that outside 3 is completely coated and inside 2 is coated up to the periphery of plate 6. It if preferred that the epoxy is applied by spraying the rotating shell with the epoxy as described hereunder, however, other methods are also suitable.
  • a shaft 10 extending from plate 6 is inserted into and retained by hollow axle 11 of drying apparatus 12 (as illustrated in Figure 3).
  • Shaft 10 includes pins 15 which releasably engage complementary slots in axle 11.
  • the epoxy is applied following insertion of shaft 10 into axle 11.
  • Drying apparatus 12 includes a plurality of horizontally extending axles 11 protruding from both sides of a frame 16. An associated electric motor is actuated for rotating axles 11 and consequently helmet shells 1.
  • Apparatus 12 includes a base 17 and a plurality of heating elements 18 to allow temperature adjustment of the air moving past apparatus 12.
  • a heat shield 21 prevents unnecessary heating of base 17 and includes a polystyrene insulating section 22 and an overlying aluminium sheet 23. Shield 21 is L-shaped in cross-section to prevent inadvertent contact with heating elements 18.
  • base 17 is mounted on wheels or is otherwise easily transportable.
  • the coating contains a substantial proportion of water and as such is able to move under the influence of gravity.
  • the rotation of helmet shell 1 about a substantially horizontal axis causes the epoxy to move across the surface of the helmet while still being held in contact therewith during drying.
  • a coating on any of the helmets in the position shown in Figure 3 will be moving from the front 30 to the back 31 of the helmet. On a rotation of 180° occurring the coating will then tend to move from the back 31 to the front 30. Subsequently, the coating will oscillate across the surface of the helmet allowing intimate bonding thereto. Such oscillation is advantageous especially when a less viscous epoxy is used. That is, the epoxy will be able to progressively fill in any voids in the surface, and closely conform to the surface texture. Furthermore, the coating will substantially uniformly distribute itself over the helmet and provide a smooth finish.
  • a lacquer is similarly applied and dried. A rate of rotation of 2 to 6 revolutions per minute was found to be suitable as the lacquers available are generally more viscous than the epoxy coating. At room temperature the lacquer takes in the order of two hours to dry sufficiently and is rotated throughout this period.
  • axles 11 configured to slowly progress around the frame so that respective helmets are in the vicinity of heating elements 18 for a substantially equal time.
  • a less satisfactory -method for drying would include a reciprocating motion whereby the rotation of the helmets is reversed following the transversal of a predetermined angle. Preferably this angle is greater than 90 ° .
  • Apparatus 35 for applying a coating to a plurality of helmets 1 according to a fourth aspect of the invention.
  • Apparatus 35 includes a generally triangular body 36 supported by three legs 37 for maintaining the helmets at approximately waist height.
  • Body 36 includes a form ply top 38 and an adjacent peripherally extending frame 39.
  • a shaft 40 extends from drive means to support at its free end 41 a self lubricating bearing tube 42.
  • An outwardly extending pogo support 43 is mounted for rotation in tube 42 and disposed intermediate top 38 and frame 39.
  • Support 43 includes an axle 45 fixedly engaged at one end 47, by way of a pin 48, with a wheel 49.
  • the periphery of wheel 49 supports a rubber tyre 50 which in turn peripherally abuts the bottom surface 51 of top 38.
  • the second end 52 of axle 45 is held in a fixed relationship with a slotted hollow cylindrical retainer 53 way of a pin 54.
  • Retainer 53 is formed to accept shaft 10 and pins 15 of a pogo stick. If required an elastic band 55 or similar is used to releasably secure shaft 10 within retainer -53.
  • the upper edge 56 of frame 39 includes a wear strip 57 for preventing any undue frictional contact between tube 42 and frame 39 during relative movement therebetween.
  • the shafts 40 associated with respective supports 43 are sequentially linked with a continuous chain or belt which is circulated by an appropriate variable speed AC motor or the like to linearly progress supports 43 about the periphery of body 36 in the direction indicated by arrows 80.
  • the abutment between tyre 50 and surface 51 results in the subsequent rotation of retainer 53 in a direction indicated by arrows 81.
  • the AC motor is selectively actuated by depressing button 82 of control box 83.
  • a wide range of speeds are available such that the rate of progression of supports 43 is able to be easily varied.
  • the chain linking shafts 40 is inwardly disposed from frame 39 to prevent accidental or inadvertent contact with clothing or limbs of operators. Furthermore, top 38 also functions as a shield against contact with the underlying mechanisms.
  • Top 38 includes two sides 60 and 61 extending at right angles to each other, and a third side 63 defining a hypotenuse.
  • the length of sides 60, 61 and 62 are approximately 1 metre, 4.05 metres and 4.2 metres respectively.
  • the separate supports 43 are spaced apart such that apparatus 35 will accommodate eighteen such ' holders. However, suitable variation of the dimensions is possible to produce an apparatus which is able to accommodate more or less holders than illustrated.
  • As supports 43 progress along the length of sides 60, 61 and 62 the abutment of tyres 50 a surface 51 causes retainers 53 to rotate.
  • the weight of the pogo stick and associated helmet produce an upward force on wheel 49 and as such improve traction between tyre 50 and surface 51.
  • retainers 53 will have a rotational speed of 8.6 revolutions per minute.
  • the speed of the AC motor is variable and as such the rotational speed is able to be selected in accordance with the viscosity of the epoxy or other coating being applied to helmets 1.
  • the diameter of wheel 49 and tyre 50 are also able to be selected to achieve a desired rate of rotation.
  • a frame 70 located adjacent side 60 supports three uniquely directed spray applicators 71, 72 and 73 which selectively expel predetermined quantities of the water based epoxy onto helmets 1 as they progress along side 60.
  • the rate of rotation of helmets 1 along side 60 is increased such that the entire helmet surface is satisfactorily covered with the coating.
  • This increase is achieved by drive means 74 which includes an endless belt driven by the continuous chain via a suitable gear train.
  • drive means 74 is alternatively powered by a separate electric motor or the like.
  • the rate of rotation along side 60 is variable by either adjusting the speed of progression of supports 43 around body 35 or selecting a different gear ratio.
  • Frame 70 is ideally separate from apparatus 35 and is generally wall or roof mounted. Applicators 71, 72 and 73, are adjustably mounted to frame 70 for allowing the selective spraying of the epoxy coating in substantially any direction. Frame 70 is linked to a controller 75 and a supply of epoxy 76 via conduits 77 and 78 respectively.
  • the helmet cores to be coated are presented into engagement with respective pogo sticks, which are in turn inserted into respective supports 43 progressing along side 62.
  • a number of pogo sticks are able to be simultaneously inserted into respective supports, or alternatively, the operation is performed sequentially by a single operator as each support 43 reaches a predetermined point on side 62.
  • a support 43 progresses to side 60, its presence is detected by a sensor which is preferably a pneumatic sensor.
  • the sensor will trigger applicators 71, 72 and 73 to spray the epoxy coating in the desired direction for a predetermined time. Simultaneously, the helmet being sprayed will be rotated at approximately 20 rpm, although this will vary in accordance with the coating being applied.
  • the rate of rotation of the helmets along side 60 is such that as much epoxy coating as required is applied uniformly on the entire surface area to be coated. However, the rate must be such that the coating will not be removed from the helmet core due to centripetal forces. Furthermore, increasing the rate of rotation allows the required amount of epoxy to be applied in a minimum time as well as reducing the wastage due to overspray.
  • helmet 1 is rotated at a decreased rate as it progresses along side 61. At this rate of rotation the coating will move under the influence of gravity and oscillate across a portion of the helmet surface as that portion alternately moves in an upward and downward direction. Given that the length of side 61 is 4.05 metres and the linear rate of travel of supports 43 is 22.5mm per second, three minutes will elapse from the completion of the application of the coating to when the helmet reaches the intersection of sides 61 and 62. It is intended that at this point the pogo sticks will be removed from respective supports 43 and replaced with further pogo sticks supporting helmet cores to be coated. Preferably, both operations are able to be • performed by a single operator.
  • a substantial amount of carrier is removed during the passage of the coated helmets along side 61.
  • Additional heating means such as heating elements 18 are able to be positioned below and/or above the helmets progressing along this side to facilitate carrier removal.
  • the pogo sticks are removed from respective supports 43, they are mounted on apparatus 12 for further drying if necessary. That is, the coating is adequately adhered to the helmet and forms a sufficiently thick semi-liquid covering. The further rotation of the helmet on apparatus 12 ensures that this thickened covering fills any voids on the helmet surface to provide a coating which is intimately engaged with that surface.
  • control of applicators 71, 72 and 73 is achieved by a single pneumatic timer, which when triggered by the sensor, will cause all three applicators to spray the epoxy solution for a predetermined interval.
  • This configuration is intrinsically safe and offers acceptable accuracy for most applications.
  • the spray intensity and spread patterns of individual applicators is adjustable to enable a more versatile control of the spray.
  • a slightly more sophisticated alternative is for each applicator to include a respective pneumatic timer such that the period of application is able to be separately adjusted.
  • an electronic controller is used to provide the timing for the applicators. Delays are able to be included along with one or more spraying intervals. Moreover, electronic control is also able to be implemented using a computer for maximum versatility.
  • applicators 70, 71 and 72 are directed at least to some extent outwardly from body 36.
  • the end of apparatus 35 adjacent side 60 is located in a suitable booth for providing a capture region for any over spray or vapours.
  • apparatus 35 also contributes to the overall safety of the coating operation. That is, the operator inserting and removing pogo sticks from respective supports 43 need not be any closer than approximately four metres from the point of application. Moreover, it is preferred that any electric motors are located near the junction of sides 61 and 62 to maximise their distance from side 60. Such measures are especially relevant where flammable coatings or carriers are being used.
  • Apparatus 35 has been described only with reference to the continuous rotation of the helmets along side 61.
  • Other embodiments include an alternative rotational mechanism which rotates the helmets through a predetermined angle in an oscillatory motion. That is, rocks the helmets back and forth. Consequently, both the effects of gravity and the inertia of the coating itself will be effective in causing the movement of the coating back and forth across a portion of the helmet.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

Appareil de séchage (12) comprenant une série d'axes horizontaux (11) faisant saillie par rapport aux deux côtés d'un bâti (16). Un moteur électrique communique un mouvement de rotation aux axes (11) et, de ce fait, aux coques de casques (1). Ces coques (1) de casques fraîchement peintes sont placées sur l'appareil (12), la couche de peinture ayant une teneur appréciable en eau, de sorte qu'elle soit sujette à déplacement sous l'influence de la gravité. Le mouvement de rotation des coques (1) selon un axe horizontal entraîne un déplacement de l'époxy le long de la surface du casque tout en étant maintenu au contact tout au long du séchage. La couche de peinture oscille le long de la surface du casque, assurant ainsi une liaison intime avec son substrat. L'appareil (35) qui assure à la fois le revêtement et le séchage des casques (1) est constitué d'un bâti essentiellement triangulaire (36) supporté par trois pieds (37) de sorte que les casques sont tenus sensiblement à hauteur de la taille. Le bâti (36) comporte un dessus (38) en contreplaqué en forme et un cadre (39) périphérique. Les axes (40) associés à chacun des supports (43) sont reliés en succession par une chaîne continue dont le défilement sur des galets (43) autour du bâti (35) est assuré par un moteur approprié. Un bâti (70) placé d'un côté (60) supporte trois applicateurs-diffuseurs (71, 72, 73) unidirectionnels qui projettent une quantité prédéterminée de l'enduit époxy à base d'eau sur les casques (1) au fur et à mesure de leur défilement sur le côté de l'appareil (60). La vitesse de rotation des casques (1) le long du côté (60) est accrue de manière à ce que toute la surface du casque soit recouverte de la couche d'enduction de manière satisfaisante. Cette accélération est assurée par un dispositif d'entraînement (74) comportant une courroie en boucle entraînée par la chaîne sans fin par un train d'engrenages approprié.
PCT/AU1992/000318 1991-06-27 1992-06-26 Procede et appareil de sechage Ceased WO1993000174A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPK691891 1991-06-27
AUPK6918 1991-06-27

Publications (1)

Publication Number Publication Date
WO1993000174A1 true WO1993000174A1 (fr) 1993-01-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1992/000318 Ceased WO1993000174A1 (fr) 1991-06-27 1992-06-26 Procede et appareil de sechage

Country Status (1)

Country Link
WO (1) WO1993000174A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002020174A1 (fr) * 2000-09-08 2002-03-14 Surmodics, Inc. Appareil et dispositif pour le depot d'un revetement
US7077910B2 (en) 2003-04-07 2006-07-18 Surmodics, Inc. Linear rail coating apparatus and method
US9308355B2 (en) 2012-06-01 2016-04-12 Surmodies, Inc. Apparatus and methods for coating medical devices
US9827401B2 (en) 2012-06-01 2017-11-28 Surmodics, Inc. Apparatus and methods for coating medical devices
US11628466B2 (en) 2018-11-29 2023-04-18 Surmodics, Inc. Apparatus and methods for coating medical devices
US11819590B2 (en) 2019-05-13 2023-11-21 Surmodics, Inc. Apparatus and methods for coating medical devices

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0142583A1 (fr) * 1983-11-14 1985-05-29 Kyowa Denki Kagaku K.K. Procédé et appareil pour enduire les surfaces de récipients d'une matière de revêtement
EP0175235A2 (fr) * 1984-09-19 1986-03-26 Yoshida Kogyo K.K. Appareil d'alimentation en peinture pour machine de pulvérisation tournante
EP0222563A1 (fr) * 1985-11-02 1987-05-20 MB GROUP plc Revêtement d'objets
EP0253026A1 (fr) * 1986-07-18 1988-01-20 FECO Engineered Systems, Inc. Méthode et appareil pour enduire et traiter des récipients
EP0261644A1 (fr) * 1986-09-25 1988-03-30 Mazda Motor Corporation Méthode de revêtement dans un chaîne de revêtement et appareil de revêtement à cet effet
JPH01304077A (ja) * 1988-02-16 1989-12-07 Yamaha Motor Co Ltd 塗装装置
JPH02251262A (ja) * 1989-03-22 1990-10-09 Daifuku Co Ltd 被塗装物の搬送設備

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0142583A1 (fr) * 1983-11-14 1985-05-29 Kyowa Denki Kagaku K.K. Procédé et appareil pour enduire les surfaces de récipients d'une matière de revêtement
EP0175235A2 (fr) * 1984-09-19 1986-03-26 Yoshida Kogyo K.K. Appareil d'alimentation en peinture pour machine de pulvérisation tournante
EP0222563A1 (fr) * 1985-11-02 1987-05-20 MB GROUP plc Revêtement d'objets
EP0253026A1 (fr) * 1986-07-18 1988-01-20 FECO Engineered Systems, Inc. Méthode et appareil pour enduire et traiter des récipients
EP0261644A1 (fr) * 1986-09-25 1988-03-30 Mazda Motor Corporation Méthode de revêtement dans un chaîne de revêtement et appareil de revêtement à cet effet
JPH01304077A (ja) * 1988-02-16 1989-12-07 Yamaha Motor Co Ltd 塗装装置
JPH02251262A (ja) * 1989-03-22 1990-10-09 Daifuku Co Ltd 被塗装物の搬送設備

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTACTS OF JAPAN, C-791, page 34; & JP,A,2 251 262 (DAIFUKU CO LTD), 9 October 1990. *
PATENT ABSTRACTS OF JAPAN, C-692, page 2; & JP,A,1 304 077 (YAMAHA MOTOR CORP), 7 December 1989. *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002020174A1 (fr) * 2000-09-08 2002-03-14 Surmodics, Inc. Appareil et dispositif pour le depot d'un revetement
US6562136B1 (en) 2000-09-08 2003-05-13 Surmodics, Inc. Coating apparatus and method
US6709712B2 (en) 2000-09-08 2004-03-23 Surmodics, Inc. Coating method
US7077910B2 (en) 2003-04-07 2006-07-18 Surmodics, Inc. Linear rail coating apparatus and method
US7517547B2 (en) 2003-04-07 2009-04-14 Sur Modics, Inc. Linear rail coating apparatus and method
US9308355B2 (en) 2012-06-01 2016-04-12 Surmodies, Inc. Apparatus and methods for coating medical devices
US9623215B2 (en) 2012-06-01 2017-04-18 Surmodics, Inc. Apparatus and methods for coating medical devices
US9827401B2 (en) 2012-06-01 2017-11-28 Surmodics, Inc. Apparatus and methods for coating medical devices
US10099041B2 (en) 2012-06-01 2018-10-16 Surmodics, Inc. Apparatus and methods for coating medical devices
US10507309B2 (en) 2012-06-01 2019-12-17 Surmodics, Inc. Apparatus and methods for coating medical devices
US11628466B2 (en) 2018-11-29 2023-04-18 Surmodics, Inc. Apparatus and methods for coating medical devices
US11819590B2 (en) 2019-05-13 2023-11-21 Surmodics, Inc. Apparatus and methods for coating medical devices

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