US3824912A - Powder spray booth - Google Patents

Powder spray booth Download PDF

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Publication number
US3824912A
US3824912A US00319474A US31947472A US3824912A US 3824912 A US3824912 A US 3824912A US 00319474 A US00319474 A US 00319474A US 31947472 A US31947472 A US 31947472A US 3824912 A US3824912 A US 3824912A
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US
United States
Prior art keywords
powder
panel
booth
panels
opening
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
US00319474A
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English (en)
Inventor
F Jensen
G Jewell
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.)
ELEKTRO ION
ELEKTRO ION INC US
Original Assignee
ELEKTRO ION
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 ELEKTRO ION filed Critical ELEKTRO ION
Priority to US00319474A priority Critical patent/US3824912A/en
Priority to CA166,732A priority patent/CA967354A/en
Priority to AU63100/73A priority patent/AU465904B2/en
Priority to JP48137464A priority patent/JPS5132645B2/ja
Application granted granted Critical
Publication of US3824912A publication Critical patent/US3824912A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
    • B05B14/42—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths using electrostatic means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S118/00—Coating apparatus
    • Y10S118/07—Hoods

Definitions

  • ABSTRACT A powder spray booth for use with an electrostatic powder spray gun for coating objects in an electrostatic field as said objects are passed through the booth.
  • the booth includes a bottom panel on which is fixedly mounted a front panel, a rear panel and a pair of side panels.
  • a top panel is operatively mounted on top of the last-named panels. All of the aforemen tioned panels are made from molded fireproof fiber glass material.
  • Each of the side panels is integrally connected to the adjacent front and rear panels by rounded corner portions.
  • the top and bottom panels are each provided with rounded corners.
  • Each of the side walls is provided with an opening for the passage therethrough of a workpiece to be sprayed with powder.
  • the front panel has an opening for admitting a powder spray gun for spraying the workpiece. At least i one powder-outlet opening is provided in one of the panels.
  • the top panel has a longitudinal opening for the passage therethrough of a supporting means for the workpiece, and a metallic powder collecting means, at ground electrical potential, is disposed around each side of said longitudinal opening in the top panel.
  • the object comprises coating objects in an electrostatic field with particles of ionized powder, as paint powder.
  • the powder is sprayed on said object by an electrostatic powder-spraying apparatus.
  • the object to be sprayed is disposed in a powder spray booth where it is coated while being held stationary or while moving slowly through the booth.
  • a further disadvantage of the prior art powder spray booths is that they have sharp corners between the various panels thereof which makes it difficult to clean the 2 piece'supporting means, whereby any ionized powder that tries to escape from the booth through said opening in said top panel will be attracted to the grounding shield and be captured.
  • the grounding shield comprises two grounded plates that extend the full length of the booth.
  • FIG. 1 is a front elevational view of a powder spray booth made in accordance with the principles of the present invention.
  • FIG. 2 is a left-side elevational view of the structure illustrated in FIG. 1, taken along the line 2-2 thereof, and looking in the direction of the arrows.
  • FIG. 3 is a top plan view of the structure illustrated in FIG. 1, taken along the line 3-3 thereof, and looking in the direction of the arrows.
  • FIG. 4 is a fragmentary, enlarged, left-side elevational view of the structure illustrated in FIG. 3, taken along the line 4-4 thereof, and looking in the direction of the arrows.
  • FIG. 5 is a fragmentary, enlarged, elevational section view of the structure illustrated in FIG. 3, taken along the line 5--5 thereof, and looking in the direction of that powder is lost through the opening in the top panel of the booth through which is extended the object or workpiece supporting means.
  • FIG. 6 is a fragmentary, enlarged, elevational section view of the structure illustrated in FIG. 3, taken along the line 6-6 thereof, and looking in the direction of the arrows.
  • FIG. 7 is an elevational, perspective view of the pow der spray booth illustrated in FIGS. lthrough 4.
  • FIG. 8 is afragmentary, elevational section view through the top panel of the booth, and showing the provision of a dust outlet opening without a baffle.
  • FIG. 9 is a fragmentary, elevational section view of the side panel of the booth of the present invention, and showing the provision of a dust outlet opening through the booth side panel.
  • FIG. 10 is a fragmentary, elevational section view through the bottom panel of a booth, made in accorin the bottom panel of a spray booth.
  • FIG. 13 is a fragmentary, elevational section view of a bottom panel of a spray booth made in accordance with the principles of the present invention, and showing the use of a venturi type dust outlet means.
  • FIG. 14 is a fragmentary, elevational section view through the top panel of the spray booth.
  • the numeral 10 generally designates a powder spray booth made in accordance with the principles of the present invention.
  • the booth includes a bottom panel 11 which has downwardly sloping portions that terminate in a centrally disposed powder outlet opening 12.
  • a conduit means Operatively connected to the powder opening outlet 12, by any suitable means, is a conduit means, generally indicated by the numeral 13, which is adapted to be connected to a suitable powder collector means.
  • the bottom panel 11 is rectangular in plan configuration and it is provided with a suitable support means.
  • the support means for the bottom panel 11 includes four vertical, angle-shaped support legs 14 which are attached to the corners of the bottom panel 11 by any suitable means.
  • the support legs 14 are made from any suitable material, as a metal or a suitable plastic.
  • the bottom panel 11 is made from a molded fireproof fiber glass material.
  • a powder deflector means is disposed over the powder outlet opening 12 in a position spaced upwardly from the bottom panel 11.
  • the illustrated deflector means 17 is circular in plan configuration, and it is convex or saucer-shaped, as viewed from the side thereof.
  • the deflector means 17 is provided with'means for supporting it in said spaced'position from the bottompanel 11 which includesa plurality of vertically disposed and peripherally spaced apart legs 18.
  • the deflector means 17 and supporting'legs 18 are preferably made from the same material from which the bottom panel 11 is made.
  • the supporting legs 18 are secured to the deflector means 17 and to thebottom panel 11' in positions'spaced around the opening 12, by any suitable means, as, for example, by a suitable adhesive.
  • the deflector means 17 is larger in diameter than the powder opening outlet 12.
  • the powder opening outlet 12 was formed with a 10 inch diameter and the deflector means 17 was formed with a 25 inch diameter, and thelower end thereof was spaced upwardly 6 inches from the outlet 12.
  • the booth 10 is provided with a front panel comprising a pair of spaced apart panel portions 19 which are separated by a vertical opening 20.
  • the booth rear panel is formed identical to the booth front panel and comprises a pair of panel portions 21 which are spaced apart by a vertical opening 22.
  • the booth left side panel comprises. a pair of panel portions 23 which are spaced apart by a vertical opening 24.
  • the booth 10 includes a right side panel comprising a pair of panel portions 25 which are spaced apart by a vertical openingv 26.
  • the aforementioned front, rear and side panel portions are each provided with vertical flanges 27 along their vertical free edges and with horizontal flanges 28 along their horizontal free edges.
  • each of the side panels is integrally connected to the respective adjacent front and rear panels by rounded corner panel portions.
  • the booth 10 includes a top panel which is formed by a pair of integrally formed top panel portions generally indicated by the numeral 29.
  • Each of the top panel portions 29 includes two longitudinally spaced apart vertical side walls 30, a vertical outer wall 31, an inwardly and upwardly sloping top wall 32, and an inwardly and upwardly sloping flange 34 (FIG. 4).
  • a flange 33 is formed around the lower'periphery of the side walls 30 and the outer wall 31.
  • each of the top panel portions 29 is provided with outwardly extended eaves 37 along the side edges of the flanges 33, and outwardly extended eaves 36 along the front and rear flanges 33.
  • the bottom panel 11 is provided with outwardly extended eaves 35 at the lower ends of the openings 20 and 24 between the various panel portions.
  • the front, rear, and side panels are made from the same molded fireproof fiber glass material from which the bottom panel 11 is made.
  • the various beforedescribed panels are fixedly secured together by any suitable means, as, for example, by suitable bolt and nut means as shown in FIGS. 5 and 6.
  • FIGS. 5 and 6 illustrate the use of a bolt 38, a nut 39, and a pair of washers 'to secure the flanges 33 and 28 of an upper panel portion 29 and right-side panel.
  • the bolt 38 passes through suitable apertures in the flanges 28 and 33.
  • the top panel portions 29 are connected to the front, rear and side panels by the bolt and nut means shown in FIGS. 5 and 6.
  • the bottom panel 11 is also connected to the front, rear and side panels in the same manner.
  • the side panel portions are integrally connected to the front and rear panel portions by rounded inner corners.
  • the various wall portions comprising the top panel portions 29 are also integrally interconnected with rounded corners.
  • the rounded corners at the meeting points between the various wall portions makes it easier to clean the booth every time a customer wants to change paint colors.
  • the fiber glass wall panels also will not accept any electrical charge, whereas, on the other hand, a metal booth will accept the charge to a point and act as a capacitor and then discharge, possibly causing an explosion.
  • the fiber glass panels provide a safer booth.
  • the powder deflector means 17 distributes the air more evenlyover the inlet opening l2.'Accordingly,
  • the top panel peripheral flanges 34 converge and they are each provided on their upper end with a horizontal, inwardly extended flange 41.
  • Operatively connected to the flanges 41 are apair of metal grounding shield members generally indicated by the numerals 42.
  • the shield members 42 each comprise a substantially S-shaped elongated metal member which includes an upper horizontal flange 43 that is operatively mounted on the upper side of one of the flanges 41.
  • the shield members 42 further include an integral, downwardly and inwardly extended vertical flange or plate 44, and a lower horizontal flange 45 which is integrally formed on the lower end of the plate 44.
  • the inner ends of the flanges 45 are spaced apart by the longitudinal slot 46 through which is adapted to pass the conventional workpiece supporting hooks or other suitable means 47.
  • the hooks 47 carry workpieces 48 through the booth, from the right side of the booth toward the left side of the booth, as indicated by the arrow in FIG. 1.
  • the shield members 42 are attached to the top panel I wall flanges 41 by any suitable means, as by a plurality of bolt and nut means 49. the metal grounding shield members 42 is grounded.
  • a conventional workpiece hook 47 is operatively mounted on a conventional conveyor trolley apparatus, generally indicated by the numeral 50, which is rollably mounted on a conventional conveyor rail 51, that is fixedly secured to a suitable overhead support means 52, as the overhead of a building and the like. As shown in FIG. 4, the conveyor rail 51 is also grounded.
  • the two shield members 42 are made from any suitable metal, as for example, they may be rolled from sheets of mild steel.
  • the opening or slot 46 is approximately 1 inch in width. It will be seen that any charged paint powder sprayed into the booth towards workpieces 48 which happens to escape or tries to escape from the booth through the slot 46 will be attracted to the shield members 42 and the paint powder thus will not escape into the room in which the booth is situated.
  • the ionized cloud of paint powder in the booth will be attracted to the grounded shield members 42 if there As shown in FIG. 4, each of I 2 are not any parts 48 in the booth.
  • the grounded shield members 42 run the full length of the booth.
  • FIG. 8 is a fragmentary elevational section view of v opening 54, and is connected to a suitable dust collecting means.
  • the opening 54 is shown without a deflector means, but it will be. understood that any suitable deflector means or baffle may be provided, as for example, the baffle of FIG. 2.
  • FIG. 9 is a fragmentary elevational section view of the side panel 21 of the booth of the present invention, and showing a powder collecting or outlet duct 56 mounted in a suitable powder outlet opening 59 in the booth side panel 21.
  • the outlet duct 56 would be connected to a suitable dust collecting means.
  • a suitable conical baffle or deflector means 57 is shown as being fixedly mounted by suitable supports 58 over the outlet opening 59. It will be understood that the dust outlet opening 59 and duct 56 illustrated in FIG. 9 could also be used without the baffle 57.
  • FIGS.10 and 11 illustrate the use of a rectangular powder outlet opening formed in a depression or sump 60 in the middle of the bottom panel 11a.
  • a dust outlet opening 61 is formed through one of the side walls of the sump 60, and it is operatively connected to a rectangular duct 62 which is adapted to be connected to a suitable dust collecting means.
  • a suitable elongated triangular baffle or deflector means 63 is supported above the opening 61 by suitable support members 64. It will be understood that the outlet opening 61 could also be employed without the useof the baffle 63.
  • FIG. 12 is a fragmentary elevational section view through a bottom panel 11b which may be used in the invention, and which is provided with two sumps 60 and two of the dust outlet openings 61.
  • FIG. 13 is an elevational section view through the booth bottom panel 11c which may be used with the present invention.
  • a dust outlet opening 65 is formed in the bottom of the panel, and operatively mounted thereover is an inverted conically shaped funnel member 66 having an open upper end 67 and an open lower end 68. It will be seen that the dust passing downwardly through the venturi member of funnel member 66 creates a venturi effect between the funnel 66 and the side walls of the opening 65 so as to assist in the collection of powder or dust in the spray booth, and for passing the same into the dust collecting duct 69 which would be connected to a suitable dust collecting means.
  • FIG. 14 is a section view through the wall of the top panel 30 and it shows the formation or structure in detail of the fireproof fiber glass material employed in forming the booth panels.
  • All of the booth panels are formed from a fireproof fiber glass material so as to make the spray booth fireproof.
  • the gel used in making the panels is a halogenated unsaturated polyester resin possessing self extinguishing properties.
  • a suitable fireproof gel is one available from Koppers, Inc. of Pittsburgh, Pennsylvania, and is a polyester resin sold under the catalogue number 3465-5.
  • the various panels of the booth are formed by first spraying molding panels with the aforementioned gel provided with a particular pigment as, for example, a white pigment.
  • a thin gel layer is made to a depth of approximately 15 mils of an inch thick. This first thin layer is then covered by a thick second layer consisting of the same resin with the addition of 1 ment, if desired, as green.
  • the wax in the second layer rises to the surface to create a thin wax film allowing the resin to cure.
  • the resultant fireproof material is noncombustible and it is a non-conductor.
  • the numeral 71 designates the white thin layer of fireproof material and the numeral 72 designates the green thick layer of fireproof material.
  • the booth panels are thus formed by a twostep method. It will be understood that any colors may be employed.
  • the workpiece parts to be sprayed with paint powder are moved into the booth at the right side thereof, as shown in FIG. 1.
  • the operator extends his conventional powder spray gun into either of the openings 20 and 22 and sprays the workpiece parts 48 as they are moved through the booth.
  • a powder spray booth comprising:
  • each of said side panels being integrally connected to the adjacent front and rear panels by rounded comer panel portions;
  • a top panel operatively mounted on the top end of said front, rear and side panels;
  • At least one of said panels having an opening therethrough for spraying powder on a workpiece part in said booth;
  • At least one of said panels having a powder outlet h.
  • said top and bottom panels are each provided with rounded corners on the front, rear and sides thereof; and,
  • each panel comprises a fiber glass molded panel coated with a first layer of halogenated unsaturated polyester cluding:
  • a deflector means disposed over said powder outlet nated unsaturated polyester resin, a wax hardener opening in a position spaced apart therefrom.
  • a powder spray booth as defined in claim 1 2.
  • the bottom panel is provided with a depression each of Sald Side Panels 15 Provlded Wlth an p having side walls, and one of the side walls of the ing for the P rq g a workpiece F depression is provided with a powder outlet openbe sprayed with powder as it is carried through said ing. booth; 10 8. A der s ra bo th as defined in claim 7 inb. each of said booth front and rear panels is prop y o vided with at least one opening for admitting a powder spray gun for spraying a workpiece part moving through the booth;
  • said top panel has a longitudinal opening formed therethrough for the passage therethrough of a a. a deflector means disposed in operative position over said powder outlet opening in said depression.
  • a me t allic pos/ der co llector means at ground electhe bottom Panel 15 provlded. with a P l of trical potential, is disposed along each side of said presslons wlth depression havmg Slde longitudinal opening in Said top panel and one of the side walls of each of the depressions 3.
  • a powder spray booth as defined in claim 1, inprovlded wlth a powder outlet f 1 eludingZ 10 A powder spray booth as defined in claim 9, in-
  • top panel is provided with a powder outlet Powder p y [300th as defined Clalm 1, opening.
  • a ventun-type deflector means is disposed n operpowde'r outlet opening. ative position over the powder outlet opening.

Landscapes

  • Electrostatic Spraying Apparatus (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
US00319474A 1972-12-29 1972-12-29 Powder spray booth Expired - Lifetime US3824912A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US00319474A US3824912A (en) 1972-12-29 1972-12-29 Powder spray booth
CA166,732A CA967354A (en) 1972-12-29 1973-03-22 Powder spray booth
AU63100/73A AU465904B2 (en) 1972-12-29 1973-11-30 Powder spray booth
JP48137464A JPS5132645B2 (enrdf_load_stackoverflow) 1972-12-29 1973-12-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00319474A US3824912A (en) 1972-12-29 1972-12-29 Powder spray booth

Publications (1)

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US3824912A true US3824912A (en) 1974-07-23

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Application Number Title Priority Date Filing Date
US00319474A Expired - Lifetime US3824912A (en) 1972-12-29 1972-12-29 Powder spray booth

Country Status (4)

Country Link
US (1) US3824912A (enrdf_load_stackoverflow)
JP (1) JPS5132645B2 (enrdf_load_stackoverflow)
AU (1) AU465904B2 (enrdf_load_stackoverflow)
CA (1) CA967354A (enrdf_load_stackoverflow)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2551659A1 (de) * 1975-11-18 1977-10-13 Malkmus Doernemann Carola Anlage zur elektrostatischen pulverbeschichtung von haengend bewegten teilen
FR2418679A1 (fr) * 1978-03-02 1979-09-28 Automation Industrielle Sa Cabine pour l'application electrostatique de substances pulverulentes sur des pieces
DE2945934A1 (de) * 1978-11-21 1980-05-29 Europ Equip Menager Elektrostatische vorrichtung zum aufbringen eines pulvers auf die oberflaeche eines gegenstands
US4245551A (en) * 1979-03-05 1981-01-20 Nordson Corporation Coating booth for electrostatic application of pulverized materials
FR2467022A2 (fr) * 1978-11-21 1981-04-17 Europ Equip Menager Installation de poudrage electrostatique d'objets
US4932316A (en) * 1989-04-26 1990-06-12 Flakt, Inc. Paint spray booth with movable inner walls
US5173118A (en) * 1991-05-20 1992-12-22 Abb Flakt, Inc. Paint spray booth with adjustable partitions
US5755246A (en) * 1995-06-23 1998-05-26 George Koch Sons, Inc. Housing for industrial finishing equipment
WO2001078905A3 (en) * 2000-04-14 2002-04-11 Nordson Corp Powder coating booth containment structure
US20020185064A1 (en) * 2000-04-14 2002-12-12 Shutic Jeffrey R. Powder coating booth containment structure
US20030019425A1 (en) * 2000-10-05 2003-01-30 Shutic Jeffrey R. Powder coating spray booth with a powder extraction system
US20130035025A1 (en) * 2011-08-01 2013-02-07 Chrysler Group Llc Containment hood
USD724194S1 (en) * 2011-11-02 2015-03-10 Gema Switzerland Gmbh Powder spray booth
US20170136482A1 (en) * 2014-05-26 2017-05-18 Gema Switzerland Gmbh Powder spray coating booth

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52117563U (enrdf_load_stackoverflow) * 1976-02-19 1977-09-06

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1520796A (en) * 1923-12-03 1924-12-30 Howard G Bartling Spray cabinet
US2086514A (en) * 1936-07-14 1937-07-06 Chrysler Corp Coating material recovery process
US2730988A (en) * 1950-06-10 1956-01-17 Ransburg Electro Coating Corp Electrostatic coating apparatus
US3424129A (en) * 1967-04-20 1969-01-28 Devilbiss Co Spray booth
US3439649A (en) * 1965-03-15 1969-04-22 Ransburg Electro Coating Corp Electrostatic coating apparatus
US3695226A (en) * 1969-06-25 1972-10-03 Aerocoat Sa Spraying booth
US3700389A (en) * 1969-06-25 1972-10-24 Aerocoat Sa Spraying booth

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1520796A (en) * 1923-12-03 1924-12-30 Howard G Bartling Spray cabinet
US2086514A (en) * 1936-07-14 1937-07-06 Chrysler Corp Coating material recovery process
US2730988A (en) * 1950-06-10 1956-01-17 Ransburg Electro Coating Corp Electrostatic coating apparatus
US3439649A (en) * 1965-03-15 1969-04-22 Ransburg Electro Coating Corp Electrostatic coating apparatus
US3424129A (en) * 1967-04-20 1969-01-28 Devilbiss Co Spray booth
US3695226A (en) * 1969-06-25 1972-10-03 Aerocoat Sa Spraying booth
US3700389A (en) * 1969-06-25 1972-10-24 Aerocoat Sa Spraying booth

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2551659A1 (de) * 1975-11-18 1977-10-13 Malkmus Doernemann Carola Anlage zur elektrostatischen pulverbeschichtung von haengend bewegten teilen
FR2418679A1 (fr) * 1978-03-02 1979-09-28 Automation Industrielle Sa Cabine pour l'application electrostatique de substances pulverulentes sur des pieces
DE2945934A1 (de) * 1978-11-21 1980-05-29 Europ Equip Menager Elektrostatische vorrichtung zum aufbringen eines pulvers auf die oberflaeche eines gegenstands
FR2467022A2 (fr) * 1978-11-21 1981-04-17 Europ Equip Menager Installation de poudrage electrostatique d'objets
US4245551A (en) * 1979-03-05 1981-01-20 Nordson Corporation Coating booth for electrostatic application of pulverized materials
US4932316A (en) * 1989-04-26 1990-06-12 Flakt, Inc. Paint spray booth with movable inner walls
US5173118A (en) * 1991-05-20 1992-12-22 Abb Flakt, Inc. Paint spray booth with adjustable partitions
US5755246A (en) * 1995-06-23 1998-05-26 George Koch Sons, Inc. Housing for industrial finishing equipment
US20020185064A1 (en) * 2000-04-14 2002-12-12 Shutic Jeffrey R. Powder coating booth containment structure
US20050034380A1 (en) * 2000-04-14 2005-02-17 Shutic Jeffrey R. Powder coating booth containment structure
WO2001078905A3 (en) * 2000-04-14 2002-04-11 Nordson Corp Powder coating booth containment structure
US6458209B1 (en) 2000-04-14 2002-10-01 Nordson Corporation Powder coating booth containment structure
WO2003095104A1 (en) * 2000-04-14 2003-11-20 Nordson Corporation Composite powder coating booth with conductive layer
US20040134423A1 (en) * 2000-04-14 2004-07-15 Messerly James W. Composite powder coating booth with conductive layer
US6830620B2 (en) 2000-04-14 2004-12-14 Nordson Corporation Powder coating booth containment structure
US20030019425A1 (en) * 2000-10-05 2003-01-30 Shutic Jeffrey R. Powder coating spray booth with a powder extraction system
US6866717B2 (en) * 2000-10-05 2005-03-15 Nordson Corporation Powder coating spray booth with air curtain
US20050155548A1 (en) * 2000-10-05 2005-07-21 Shutic Jeffrey R. Powder coating spray booth with a powder extraction system
US20130035025A1 (en) * 2011-08-01 2013-02-07 Chrysler Group Llc Containment hood
US8968061B2 (en) * 2011-08-01 2015-03-03 Chrysler Group Llc Containment hood
USD724194S1 (en) * 2011-11-02 2015-03-10 Gema Switzerland Gmbh Powder spray booth
US20170136482A1 (en) * 2014-05-26 2017-05-18 Gema Switzerland Gmbh Powder spray coating booth

Also Published As

Publication number Publication date
JPS49103936A (enrdf_load_stackoverflow) 1974-10-02
AU465904B2 (en) 1975-10-09
CA967354A (en) 1975-05-13
AU6310073A (en) 1975-06-05
JPS5132645B2 (enrdf_load_stackoverflow) 1976-09-14

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