US3649326A - Coated article and method of forming the same - Google Patents

Coated article and method of forming the same Download PDF

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Publication number
US3649326A
US3649326A US811083A US3649326DA US3649326A US 3649326 A US3649326 A US 3649326A US 811083 A US811083 A US 811083A US 3649326D A US3649326D A US 3649326DA US 3649326 A US3649326 A US 3649326A
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US
United States
Prior art keywords
coating
article
cloud
coated article
portions
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 - Lifetime
Application number
US811083A
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English (en)
Inventor
William J Cole
Edward R Olshaske
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.)
Brunswick Corp
Original Assignee
Brunswick Corp
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Filing date
Publication date
Application filed by Brunswick Corp filed Critical Brunswick Corp
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Publication of US3649326A publication Critical patent/US3649326A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
    • B05D1/22—Processes for applying liquids or other fluent materials performed by dipping using fluidised-bed technique
    • B05D1/24—Applying particulate materials
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63D—BOWLING GAMES, e.g. SKITTLES, BOCCE OR BOWLS; INSTALLATIONS THEREFOR; BAGATELLE OR SIMILAR GAMES; BILLIARDS
    • A63D9/00—Pins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/06—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood
    • B05D7/08—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood using synthetic lacquers or varnishes
    • B05D7/10—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood using synthetic lacquers or varnishes based on cellulose derivatives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/002—Processes for applying liquids or other fluent materials the substrate being rotated

Definitions

  • ABSTRACT A coated article such as a bowling pin and method of forming such a coated article.
  • the article may comprise an extended life bowling pin having portions of different wear susceptibility wherein those portions having greatest wear susceptibility are provided with thickest coating portions.
  • the method comprehends an electrostatic retention of the coating forming material delivered to the article body from a charged cloud thereof. The cloud formation and electrostatic potential are coordinated to effect the desired coating thickness control.
  • the coating material is fused subsequent to the deposition to form a variable depth coating having an external configuration accurately defining the coated article.
  • the present invention comprehends an improved method of coating articles and in particular a method of forming an article such as an extended life bowling pin wherein a coating is provided on the article by delivering the material to the article as a result of the formation of a cloud of the coating material surrounding the article.
  • the coating material is caused to remain adhered to the article by a controlled electrostatic attraction for subsequent fusing of the coating material on the article surface.
  • the article may have a coating wherein the greatest depth of the coating may be at a greatest wear susceptibility portion.
  • the article is a bowling pin
  • the greatest depth is at the rounded portions of the head and belly of the pin where greatest wear normally occurs in use.
  • the resultant product is resultingly caused to have an external configuration accurately defining the desired coated article.
  • FIG, I is a schematic isometric view with portions broken away illustrating a method of forming a coated article embodying the invention
  • FIG. 2 is a fragmentary vertical section thereof
  • FIG. 3 is a schematic view illustrating the step of fusing of the coating material on the article.
  • FIG. 4 is an elevation of a bowling pin embodying the invention with a portion broken away to show the coating thereon.
  • a method of forming a coated article comprises the steps of disposing an article to be coated in a cloud 11 of coating material, causing the coating material to be retained on the article 10 by electrostatic means generally designated 12 in the form of a thin layer 13.
  • the deposited layer 13 is then fused by suitable fusing means generally designated 14 to define the coated article 15.
  • the coated article 15 comprises a coated bowling pin having a wood body 10, comprising a suitable plastic material, such as cellulose acetate butyrate, ethyl cellulose, etc.
  • body 10 is disposed in a cloud chamber 16 defined by a cabinet 17 and is supported on a rotatable carrier 18 to extend axially horizontally in the chamber.
  • Carrier 18 may be rotated by suitable means, illustratively shown as an electric motor 19 and belt drive 20.
  • the drive system may be carried on a suitable base 21 which is electrically connected to the carrier 18 by suitable conductive axle 22.
  • Carrier 18 is arranged to support body 10, as shown in FIG. 2, at the upper boundary of a cloud 11 of plastic powder which may be produced by introduction of air under pressure through an inlet 23 below a foraminous plate 24 which carries a quantity 25 of the powdered plastic.
  • the air passing upwardly through the powdered plastic forms the cloud ll surrounding the lower portion of the pin.
  • the powdered plastic comprises cellulose acetate butyrate or ethyl cellulose
  • it may have a particle size of approximately 20 to 300 microns.
  • a preferred size range is from approximately 50 to 150 microns.
  • the air may be introduced at a pressure of approximately 1 pound p.s.i. to provide the desired cloud 11.
  • the cloud ll delivers the powder only to the downwardly disposed portion of the pin body 10 as it rotates.
  • an electrostatic charge may be imparted to the powdered material adjacent plane 24.
  • the electrostatic charging means 12 may include a zigzag grid assembly 26 of bare wires 27 carried on suitable insulating supports 28.
  • a high voltage power supply 29 is connected through a positive lead 30 to the support base 21 and through a negative lead 31 to the wires 27,
  • Power supply 29 preferably comprises an electrostatic charging device producing a voltage differential between the grid assembly 26 and the pin body 10 such as less than approximately 30 kilovolts to effect the desired retention while yet precluding the charging effect from controlling the deposition and causing a substantially uniform depth of deposition.
  • a current limiting resistor 32 may be provided in the power supply lead 31 for controlling the current flow through the system.
  • the article 10 may be provided with a coating of plastic material by depositing the powdered plastic onto the surface of the article whereon it is retained electrostatically. It is preferable that the article have a limited conductivity to effect the desired particle retention. lllustratively, where the product comprises a bowling pin, the article 10 may be formed of wood having a moisture content of approximately 6 to 9 percent. Where low conductivity articles are to be coated by the disclosed method, surface treatment, as by prior coating of the surface with a conductive material, may be effected prior to the plastic coating operation. The article 10 is slowly rotated in the cloud 11 to assure a desired deposition of the powdered plastic on the outer surface thereof.
  • the enlarged portions 10a and 10b of the article effectively define areas of electrostatic concentration whereby a thicker coating of the powdered plastic is retained thereon as compared to the thickness of the coating at other portions of the article.
  • the article 10 comprises a bowling pin
  • the belly portion and head portion 10b comprise surface portions of relatively large wear susceptibility and, thus, the disclosed process provides an improved bowling pin wherein the greatest depth of the coating is at the areas of greatest wear susceptibility.
  • the electrostatic charge retains the powdered plastic on the article 10 to permit subsequent fusion thereof by a suitable fusing step.
  • the retained powdered plastic may be fused by treatment in fusing means 14 with a suitable solvent vapor 33, such as trichlorethylene, in a suitable tank 34, as shown in FIG. 3.
  • a suitable solvent vapor 33 such as trichlorethylene
  • the resultant bowling pin 15 thus is provided with a variable thickness coating 35 which is bonded to the base article 10 to define an improved extended life bowling pin with the greatest depth of the protective plastic coating being provided at the greatest wear susceptibility portions, which are portions 3a and 3b corresponding to portions 10a and 10b of the base article 10.
  • the deposition may be suitably controlled to assure that the bowling pin 15 has an external configuration accurately defining the desired pin.
  • the coating defines an externally hard wear resistant layer throughout, providing long, useful life at effectively minimum cost.
  • the invention comprehends the provision of cloud 11 from the mass of powdered plastic 25 independently of the electrostatic charge means 12.
  • the powdered plastic is delivered to the article by the mechanism of flowing air, in contradistinction to known methods of coating articles by electrostatic attraction.
  • the particles are caused to be retained on the article surface by the electrostatic charges.
  • a method of coating a bowling pin comprising the steps of:

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
US811083A 1969-03-27 1969-03-27 Coated article and method of forming the same Expired - Lifetime US3649326A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81108369A 1969-03-27 1969-03-27

Publications (1)

Publication Number Publication Date
US3649326A true US3649326A (en) 1972-03-14

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ID=25205502

Family Applications (1)

Application Number Title Priority Date Filing Date
US811083A Expired - Lifetime US3649326A (en) 1969-03-27 1969-03-27 Coated article and method of forming the same

Country Status (5)

Country Link
US (1) US3649326A (cs)
JP (1) JPS5031069B1 (cs)
DE (1) DE2014485A1 (cs)
GB (1) GB1306537A (cs)
SE (1) SE371784B (cs)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924020A (en) * 1973-12-13 1975-12-02 Anchor Hocking Corp Method of making a thermoplastic ink decorated, polymer coated glass article
US3937854A (en) * 1973-07-12 1976-02-10 Anchor Hocking Corporation Method of making a thermoplastic ink decorated, polymer coated glass article
US3989859A (en) * 1974-11-14 1976-11-02 Koerper Engineering Associates, Inc. Coating entire surface of three-dimensional article with heat fusible plastic
US4091827A (en) * 1976-08-16 1978-05-30 Kotaro Tsukamoto Edulcoration equipment for wire coils
FR2725385A1 (fr) * 1994-10-06 1996-04-12 Lebioda Robert Procede et installation de peinture par voie electrostatique de pieces en materiau dielectrique ou faiblement conducteur et electrode utilisee
WO1997037770A1 (fr) * 1996-04-11 1997-10-16 Lcs International Sa Procede de peinture de pieces en materiau dielectrique ou faiblement conducteur, electrode pour installation de peinture par voie electrostatique de pieces en materiau dielectrique ou faiblement conducteur et installation de peinture
US6558752B2 (en) * 2000-05-24 2003-05-06 Nordson Corporation Electrostatic fluidized bed coating method and apparatus
WO2017144782A1 (en) * 2016-02-26 2017-08-31 Beneq Oy Improved aerosol coating device and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010027179B3 (de) * 2010-07-14 2011-11-10 Benteler Automobiltechnik Gmbh Verfahren und Fertigungsanlage zur Herstellung von Kraftfahrzeugbauteilen

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US398995A (en) * 1889-03-05 atterbur y
US685512A (en) * 1900-04-24 1901-10-29 George Westinghouse Method of treating nernst-lamp glowers.
US2097233A (en) * 1934-03-31 1937-10-26 Research Corp Electrical deposition in pattern form
US2968485A (en) * 1958-11-19 1961-01-17 Richard P Aler Bowling pin
US3019126A (en) * 1959-03-24 1962-01-30 United States Steel Corp Method and apparatus for coating metal strip and wire
US3108022A (en) * 1960-05-09 1963-10-22 Polymer Processes Inc Apparatus for coating an elongate body with fluidized coating material
US3248253A (en) * 1962-06-22 1966-04-26 Sames Sa De Machines Electrost Electrostatic transfer method and apparatus for coating articles with a fluidized composition
US3336903A (en) * 1963-04-24 1967-08-22 Sames Sa De Machines Electrost Electrostatic coating apparatus
US3419409A (en) * 1967-04-03 1968-12-31 Polymer Corp Process for coating

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4319953Y1 (cs) * 1965-10-27 1968-08-21

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US398995A (en) * 1889-03-05 atterbur y
US685512A (en) * 1900-04-24 1901-10-29 George Westinghouse Method of treating nernst-lamp glowers.
US2097233A (en) * 1934-03-31 1937-10-26 Research Corp Electrical deposition in pattern form
US2968485A (en) * 1958-11-19 1961-01-17 Richard P Aler Bowling pin
US3019126A (en) * 1959-03-24 1962-01-30 United States Steel Corp Method and apparatus for coating metal strip and wire
US3108022A (en) * 1960-05-09 1963-10-22 Polymer Processes Inc Apparatus for coating an elongate body with fluidized coating material
US3248253A (en) * 1962-06-22 1966-04-26 Sames Sa De Machines Electrost Electrostatic transfer method and apparatus for coating articles with a fluidized composition
US3336903A (en) * 1963-04-24 1967-08-22 Sames Sa De Machines Electrost Electrostatic coating apparatus
US3419409A (en) * 1967-04-03 1968-12-31 Polymer Corp Process for coating

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Halliday et al., p. 574, 1961, Physics. *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3937854A (en) * 1973-07-12 1976-02-10 Anchor Hocking Corporation Method of making a thermoplastic ink decorated, polymer coated glass article
US3924020A (en) * 1973-12-13 1975-12-02 Anchor Hocking Corp Method of making a thermoplastic ink decorated, polymer coated glass article
US3989859A (en) * 1974-11-14 1976-11-02 Koerper Engineering Associates, Inc. Coating entire surface of three-dimensional article with heat fusible plastic
US4091827A (en) * 1976-08-16 1978-05-30 Kotaro Tsukamoto Edulcoration equipment for wire coils
FR2725385A1 (fr) * 1994-10-06 1996-04-12 Lebioda Robert Procede et installation de peinture par voie electrostatique de pieces en materiau dielectrique ou faiblement conducteur et electrode utilisee
WO1996011063A1 (fr) * 1994-10-06 1996-04-18 Societe Civile Scbp Procede et installation de peinture par voie electrostatique de pieces en materiau dielectrique ou faiblement conducteur
WO1997037770A1 (fr) * 1996-04-11 1997-10-16 Lcs International Sa Procede de peinture de pieces en materiau dielectrique ou faiblement conducteur, electrode pour installation de peinture par voie electrostatique de pieces en materiau dielectrique ou faiblement conducteur et installation de peinture
US6558752B2 (en) * 2000-05-24 2003-05-06 Nordson Corporation Electrostatic fluidized bed coating method and apparatus
WO2017144782A1 (en) * 2016-02-26 2017-08-31 Beneq Oy Improved aerosol coating device and method
CN108495719A (zh) * 2016-02-26 2018-09-04 倍耐克有限公司 改进的气溶胶涂布装置和方法

Also Published As

Publication number Publication date
GB1306537A (en) 1973-02-14
JPS5031069B1 (cs) 1975-10-07
DE2014485A1 (de) 1970-10-29
SE371784B (cs) 1974-12-02

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