US3716021A - Applicator mechanism for particulate material - Google Patents

Applicator mechanism for particulate material Download PDF

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Publication number
US3716021A
US3716021A US00122802A US3716021DA US3716021A US 3716021 A US3716021 A US 3716021A US 00122802 A US00122802 A US 00122802A US 3716021D A US3716021D A US 3716021DA US 3716021 A US3716021 A US 3716021A
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Prior art keywords
sieve
support
article
accordance
base
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Expired - Lifetime
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US00122802A
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English (en)
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R Fry
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Vibrantz Corp
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Ferro Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C19/00—Apparatus specially adapted for applying particulate materials to surfaces
    • B05C19/04—Apparatus specially adapted for applying particulate materials to surfaces the particulate material being projected, poured or allowed to flow onto the surface of the work
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
    • C23D5/00—Coating with enamels or vitreous layers

Definitions

  • Apparatus for applying powdered porcelain enamel to a heated hollow article includes a tiltable, [52] U.S. Cl. ..1 181308, 1 18/318, 1 18/321 rotatable base having means for holding the honow [51 1111. C1.
  • the heat of the base metal caused the porcelain enamel coming in contact therewith to fuse and adhere thereto, and the process was repeated, with reheating of the casting, two or three .times, until a sufficiently thick coating of vitreous enamel had been built up on the surface of the article, to thereby provide a protective coating having a pleasing smooth appearance, and high degree of chemical resistance.
  • the casting following the above procedure, was then allowed to cool during which the vitreous coating became quite hard and glossy and the article was ready for distribution and installation.
  • the present invention provides a mechanism for automatically applying a coating of particulate material to an article, such as a heated sanitary ware casting, during manipulation of the latter, to ensure an even and effective coating of the article with utilization of relatively unskilled labor, or possibly with no manual control of the mechanism whatsoever, utilizing instead automatic control systems such as for instance programmed computers, for obtaining automatic controlled operation of the coating applying mechanism.
  • FIG. I is a side elevational view of apparatus embodying the invention, and illustrating the sieve member of the apparatus in lowered position in the concavity of the article to be coated;
  • FIG. 2 is a partially broken, perspective view of the apparatus of FIG. 1 illustrating the aforementioned sieve member in raised position;
  • FIG. 3 is a fragmentary perpsective view of the apparatus, with the sieve in the lowered position of FIG.
  • FIG. 4 is an enlarged perspective view of one embodiment of sieve member
  • FIG. 5 is a fragmentary diagrammatic illustration of the lowered position of the sieve member in the concavity of the article being coated.
  • FIGS. 6 and 7 are respectively perspective and fragmentary side elevational views of another embodiment of sieve member for use in the coating apparatus.
  • FIGS. 1 and 3 there is illustrated the apparatus of this invention, with a single bowl sink 10 resting in cradle 12, and in their respective positions they would normally assume either just prior to the enameling operation, or subsequent thereto.
  • Cradle 12 may comprise upright portions 12a which underlie the laterally extending flange portions 10a of the bowl 10 and support the latter on the cradle.
  • Cradle 12 is mounted on table 14 of tilting and rotating mechanism 16 which is adapted to position the bowl 10 in optimum position for application of the particulate coating material thereto.
  • the tilting-rotating device 16 may include legs 16a and 16b (FIGS. 1 and-2) which may be firmly bolted, or otherwise solidly attached to the floor. Openly journaled as at 17 across leg supports 16a, 16b is beam assembly 18 which supports thereon in rotatable relation aforementioned table 14.
  • Table 14 may be supported by rotatable column 20 journaled as at 22 to beam assembly 18.
  • Table 14 and associated column 20 may be rotated through 360, while in an upright or in a tilted position, by any suitable power means such as for instance preferably reversible rotatable air motor 24.
  • Motor 24 may be drivingly coupled to column 20 for rotation of the latter by means of gearing 26, and may be suspended from beam assembly 18 as at 28.
  • Braking mechanism 30 may be provided for frictionally resisting free rotation of column 20 and associated table 14.
  • Beam assembly 18 and supported table 14 may be tilted sideways and with respect to a vertical plane passing through the lengthwise axes of the journals 17, by any suitable means, such as, for instance, double acting, reciprocal air powered motor unit 32.
  • the piston rod 32a of motor unit 32 may be suitably coupled to curved lever 34 attached at one end thereof as at 35 to beam assembly 18.
  • Aforementioned cradle means 12 is firmly fixed to support table 14, and may be designed to accommodate a given piece of sanitary ware, such as the single bowl sink depicted in the drawings.
  • Cradle means 12 may conveniently be removably secured to support table 3 as by means of bolts, so that a cradle adaptable to support other types of articles to be coated, such as a double bowl sink, could be readily substituted for the cradle shown.
  • a support frame 36 is affixed to the cradle means 12 and in the embodiment illustrated such support frame comprises spaced uprights 38 projecting above the upper level of cradle 12.
  • a generally horizontal shaft 40 may be mounted on the uprights 38 adjacent the latters upper ends, and as shown, with shaft 40 being rotatable on uprights 38 by any suitable means, such as for instance wheel 42 secured to one end of shaft 40.
  • sieve-like means 46 Swingably suspended as at 45 from support bar 44 is sieve-like means 46 which, in the embodiment shown in FIGS. 1 through is an optionally partitioned, hexagonal (in transverse section), perforate housing of vertically elongated Configuration and preferably having a slightly outwardly or downwardly projecting bottom 48.
  • the hexagonal housing presents an arrangement wherein the walls of the concavity C of bowl are presented with confronting planar sides of the sieve housing and in a manner insuring effective cascading of the powdered enamel onto the concavity surfaces and associated contiguous flange surfaces upon vibrating movement of member 46.
  • sieve housing member 46 could be of other configurations, such as for instance of octagonal configuration in transverse section, or of cylindrical configuration 46 as shown for instance in FIGS. 6 and 7.
  • the perforated bottom-wall 48' is preferably slightly convex as shown.
  • baffles 50 which divide the interior of the housing into a plurality of sections or chambers, as aforementioned the baffles may be eliminated thus resulting in one single chamber being defined by the housing.
  • the baffles when used preferably terminate at lower level 52 (FIG. 5) of the housing, and thus preferably do not extend all the way down to the bottom surfaces of thesieve housing, though this is a matter of choice.
  • a suitable power means 56 for vibrating or shaking the sieve-like housing member 46 is mounted on the sieve housing and coacting therewith.
  • Such power means may be, for instance, an electrically driven vibrator for uniformly shaking housing 46.
  • Vibrator 56 may be of the variable speed type for controlling the degree of vibrating movement of the housing member 46.
  • separate vibrators may be positioned within each partitioned segment, optionally programmed to vibrate at the same time, or to sequentially vibrate only the lowermost baffled compartment, or segment, during rotation of sieve member 46.
  • a counter balancing and locking bar 60 may be fixed to sieve housing 46 for the purpose of fixing member 46 generally immovable or non-swingably within the concavity of the article to be enameled, when the apparatus is in lowered operating position, as depicted in FIGS. 1 and 3.
  • Bar 60 may have a recess 64 formed therein which is adapted to receive shaft 40 in the lowered position of arms 43.
  • Suitable latching mechanism 66 may coact withrecess 64 for latching the bar 60 to shaft 40, thus holding sieve housing 46 non-swingable in the lowered position thereof.
  • Latch 66 may be, for instance, a spring loaded plunger device adapted for automatic coaction with means, such as an opening in shaft 40, in the lowered position of housing 46.
  • the entire apparatus can be observed in its lowered operating position whereat, viawheel 42, the arms 43 and associated sieve housing assembly have been lowered to the point where the sieve housing 46 is disposed within the concavity of the sink 10. It is desirable that the planar faces of the sieve housing 46 be maintained roughly equal distantfrom the confronting defining surface of the bowl to be enameled, with the bottom of the sieve housing approximately the same distance from the confronting bottom surface of the sink to be enameled, and substantially as shown in FIG. 5.
  • the lowermost progress of sieve-like housing 46 into the concavity C may be fixed by any convenient and suitable means such as for instance, stop means 70 fixed to a respective upright 38, and as by means of removable fasteners (e.g. bolts) so that changing of the position of the stops 70 on the uprights 38 provides for the adjustment of the maximum depth to which sieve housing 46 extends. Stops also may be provided to limit the maximum rearward swing of arms 43 upon movement of the sieve housing to a raised position (e.g. FIG. 1). In the raised position a feeder hose or chute 72 coupled to a storage source (not shown) of the powdered enamel may be provided for filling the sieve housing with a supply of the particulated material to be dispensed thereby.
  • a heated sink 10 which has been heated to the vicinity of l,650 F. in a suitable enameling furnace is quickly withdrawn therefrom, and placed in the cradle 12.
  • the sieve-like member 46 via rotatable wheel 42 may then be quickly lowered into the concavity of the sink to be enameled and automatically locked into place with respect thereto by means of bar 60 and associated latching mechanism 66.
  • the table 14 and associated cradle and sink are preferably tilted to an angle of approximately 45, and rotation thereof about the axis of shaft 20 is commenced simultaneously with actuation of vibrator 56 on sieve housing 46.
  • the sieve housing 46 protrudes above the top of the concavity of the article to be enameled preferably a distance of approximately one-third the depth of the concavity in the lowered position of 'housing 46, in
  • an effective relationship to accomplish expeditious coating of both the concavity surfaces and the flange surfaces without wasting of the powdered enamel is to have the distance X be approximately one-third the distance Y.
  • Sieve means 46 when in the raised position depicted in FIG. 2, and during which time the sink article being enameled has been either removed from cradle 12 for return to the heating furnace or has been removed for final cooling, may be filled through the open top thereof to a predetermined level with suitable powdered porcelain enamel, as by means of aforementioned supply hose 72.
  • the vibrator mechanism 56 may be stopped, and the table 14 and cradle 12 quickly tilted back to the horizontal, while sieve means 46, via its rotatable or swingable supporting structure 43 being moved out of and away from the enameled concavity.
  • the enameled article may be removed from cradle 12 either to be returned to the furnace for reheating, for subsequent application of a second or third coating of enamel, or the coated article may be placed in a cooling area if the coating applied has been the final one.
  • the process of this invention includes the fixing of sieve-like means within the concavity to be enameled, but out of physical contact therewith, tilting both the item to be enameled, and the sieve means disposed therewithin, to a predetermined angle with respect to the vertical (e.g. 45) rotating the entire assembly through 360, the while, via said sieve like means, applying particulated material in an even or uniform manner to the rotating concavity of the item to be enameled and its contiguous flange surfaces.
  • a pair of laterally spaced sieve housing members, each having its respective vibrator mechanism may be mounted on the shaft 44 for simultaneous coating of the respective concavity of the sink.
  • the invention provides a novel apparatus and process for the application of particulated material, such as powdered enamel, to a heated metal article, and with such apparatus comprising a movable sieve and sieve support assembly mounted for movement on a rotatable and tiltable base assembly for automatic application of a uniform cascade of the particulated material to the tilted and rotating article being coated.
  • particulated material such as powdered enamel
  • sieve member 46 contemplates an emergent portion of sieve member 46 to provide a source of material for coating a sink or lavatory flange during rotation, it is to be understood that certain items might not have a flange, or one of such vestigial dimensions, that an emergent section of sieve member 46 would not be essential.
  • the bottom, convex portion of the sieve member 46 could be either imperforate or only partially perforate around its outer periphery.
  • Apparatus for applying particulate material to an article having a concavity and associated contiguous surfaces comprising a rotatable and tiltable base, means on said base adapted for holding the article to which particulate material is to be applied, support means coacting and movable with said base, sieve-like means movably mounted on said support means and being movable by said support means into and out of said concavity, and means coacting with said sieve-like means for dispensing particulate material therefrom onto said article when said sieve-like means is in predetermined operative positional relationship with respect to the article.
  • said support means comprises a frame fixed to said base, a support arm swingably journaled to said frame, said sieve-like means being swingably mounted on said support arm for swinging movement with respect to said arm in a plane disposed generally parallel to the plane of the arc of movement of said arm.
  • said means for dispensing particulated material from said sieve-like means comprises a vibrating mechanism mounted on said sieve-like means and adapted to vibrate said sieve-like means upon actuation thereof.
  • said sieve-like means comprises a generally vertically elongated enclosure of polygonal configuration in transverse cross section, said enclosure having a downwardly projecting bottom wall and being swingably coupled to said arm adjacent the upper end of said enclosure, said enclosure being perforated for the passage therethrough of particulated material upon vibration of said enclosure.
  • said base comprises a first support member swingable about a generally horizontal axis, a second support member mounted on said first support member for movement therewith and extending generally perpendicular to a horizontal plane containing said horizontal axis, said means for holding an article being mounted on said second support member,and means for rotating said second support member with respect to said first support member whereby the article with the concavity therein may be tilted and rotated when in supported relation on said second support member.
  • said first support member comprises an elongated beam having trunions at opposite ends thereof, bearing means supporting said trunions for swinging said beam about said generally horizontally axis, power means operably coupled to said beam for selectively swinging said beam about said axis, said second support member comprising a turntable support mounted on said beam for rotation about an axis extending generally perpendicular relative to said beam, and about the axis of said turntable support, other power means mounted on said beam and coacting with said turntable support for rotating said turntable support with respect to said beam, and said means on said base for holding an article comprising cradle means mounted on said turntable support.
  • Apparatus in accordance with claim 1 including power means for rotating said base through 360 and for tilting said base with respect to the vertical through at least approximately 45.
  • said sieve-like means comprises a vertically elongated perforated housing member ada ted forreceiving the particulated material therein, suc as for instance powdered porcelain enamel, and baffle means in said housing dividing the latter into a plurality of chambers.
  • said support means comprises a frame section fixed to said base for rotation and tilting therewith, and an arm pivoted to said frame section for movement in a generally vertical plane, said sieve-like means being swingably mounted on said arm and comprising a verti cally elongated housing mounted adjacent the upper end thereof to said arm, said housing being open at the top and comprising perforated side and bottom walls for dusting particulated material from said housing onto an article to be coated.
  • Apparatus in accordance with claim 13 wherein said means coacting with said sieve-like means comprises a vibrator mounted on said sieve-like means for shaking said sieve-like means in a manner to cause dusting of particulated material from said sieve-like means upon actuation of said vibrator.
  • said sieve-like means includes means for latching said sieve-like means with respect to said support means in an operative position of said sieve-like means with respect to the article, whereby said sieve-like'means is prevented from inadvertently engaging the interior of the concavity of the article.
  • said latching means comprises an arm secured to said sieve-like means and projecting generally laterally therefrom, and a latch on said arm adapted for coaction with means on said support means for locking said sieve-like means against swingable movement with respect to said support means in the lowered operative position of said sieve-like means with respect to said base member.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
US00122802A 1971-03-10 1971-03-10 Applicator mechanism for particulate material Expired - Lifetime US3716021A (en)

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US12280271A 1971-03-10 1971-03-10

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3802384A (en) * 1972-05-05 1974-04-09 Ferro Corp Dry process enamel apparatus for bathtubs
US3942470A (en) * 1974-04-08 1976-03-09 Ferro Corporation Dry process enamel apparatus for bathtubs
FR2324376A1 (fr) * 1975-06-13 1977-04-15 Ibm Dispositif d'application de fluides sur des objets a traiter
US4020195A (en) * 1972-06-27 1977-04-26 Societe Generale De Fonderie Method for enamelling the edges of sanitary articles
US4334495A (en) * 1978-07-11 1982-06-15 Trw Inc. Method and apparatus for use in making an object
EP0152539A2 (de) * 1984-02-17 1985-08-28 Degussa Aktiengesellschaft Vorrichtung zum Trockenauftragen von fliessfähigen Granulaten
WO2017099758A1 (en) * 2015-12-09 2017-06-15 Oerlikon Metco (Us) Inc. Powder hopper for difficult-to-flow powders for use in thermal spraying and method making and using the same
USD817555S1 (en) 2015-12-09 2018-05-08 Oerlikon Metco (Us) Inc. Hopper
US10562051B2 (en) 2015-12-09 2020-02-18 Oerlikon Metco (Us) Inc. Powder hopper for difficult-to-flow powders for use in thermal spraying and method making and using the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US707490A (en) * 1902-05-13 1902-08-19 Carl H Zwermann Enamel-sifting apparatus.
US2926627A (en) * 1955-07-13 1960-03-01 Gen Mills Inc Apparatus for performing work motions automatically
US3132038A (en) * 1960-01-29 1964-05-05 American Radiator & Standard Method and means for dry enameling
US3570451A (en) * 1966-09-19 1971-03-16 Porcher Ets Enameling apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US707490A (en) * 1902-05-13 1902-08-19 Carl H Zwermann Enamel-sifting apparatus.
US2926627A (en) * 1955-07-13 1960-03-01 Gen Mills Inc Apparatus for performing work motions automatically
US3132038A (en) * 1960-01-29 1964-05-05 American Radiator & Standard Method and means for dry enameling
US3570451A (en) * 1966-09-19 1971-03-16 Porcher Ets Enameling apparatus

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3802384A (en) * 1972-05-05 1974-04-09 Ferro Corp Dry process enamel apparatus for bathtubs
US4020195A (en) * 1972-06-27 1977-04-26 Societe Generale De Fonderie Method for enamelling the edges of sanitary articles
US3942470A (en) * 1974-04-08 1976-03-09 Ferro Corporation Dry process enamel apparatus for bathtubs
FR2324376A1 (fr) * 1975-06-13 1977-04-15 Ibm Dispositif d'application de fluides sur des objets a traiter
US4334495A (en) * 1978-07-11 1982-06-15 Trw Inc. Method and apparatus for use in making an object
US4358471A (en) * 1978-07-11 1982-11-09 Trw Inc. Control apparatus
EP0152539A2 (de) * 1984-02-17 1985-08-28 Degussa Aktiengesellschaft Vorrichtung zum Trockenauftragen von fliessfähigen Granulaten
EP0152539A3 (en) * 1984-02-17 1986-12-30 Degussa Aktiengesellschaft Device for dry-applying fluid granules
WO2017099758A1 (en) * 2015-12-09 2017-06-15 Oerlikon Metco (Us) Inc. Powder hopper for difficult-to-flow powders for use in thermal spraying and method making and using the same
USD817555S1 (en) 2015-12-09 2018-05-08 Oerlikon Metco (Us) Inc. Hopper
US10562051B2 (en) 2015-12-09 2020-02-18 Oerlikon Metco (Us) Inc. Powder hopper for difficult-to-flow powders for use in thermal spraying and method making and using the same
USD885684S1 (en) 2015-12-09 2020-05-26 Oerlikon Metco (Us) Inc. Hopper

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GB1350313A (en) 1974-04-18
ES400663A1 (es) 1975-02-16

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