EP0818246A3 - Powder atomizer - Google Patents

Powder atomizer Download PDF

Info

Publication number
EP0818246A3
EP0818246A3 EP97111148A EP97111148A EP0818246A3 EP 0818246 A3 EP0818246 A3 EP 0818246A3 EP 97111148 A EP97111148 A EP 97111148A EP 97111148 A EP97111148 A EP 97111148A EP 0818246 A3 EP0818246 A3 EP 0818246A3
Authority
EP
European Patent Office
Prior art keywords
pan
powder
venturi
atomizer
particulate
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.)
Granted
Application number
EP97111148A
Other languages
German (de)
French (fr)
Other versions
EP0818246B1 (en
EP0818246A2 (en
Inventor
George R. Alexander
Eduardo C. Escallon
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.)
Material Sciences Corp
Original Assignee
Material Sciences Corp
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
Priority claimed from US08/680,243 external-priority patent/US5769276A/en
Application filed by Material Sciences Corp filed Critical Material Sciences Corp
Publication of EP0818246A2 publication Critical patent/EP0818246A2/en
Publication of EP0818246A3 publication Critical patent/EP0818246A3/en
Application granted granted Critical
Publication of EP0818246B1 publication Critical patent/EP0818246B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
    • B05B7/1404—Arrangements for supplying particulate material
    • B05B7/144—Arrangements for supplying particulate material the means for supplying particulate material comprising moving mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/047—Discharge apparatus, e.g. electrostatic spray guns using tribo-charging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/057—Arrangements for discharging liquids or other fluent material without using a gun or nozzle

Abstract

An improved powder atomizer (10) comprising a cylindrical pan (26), a cylindrical resiliently deformable element (28), which is journaled for rotation about an axis (30) within the pan. The pan is mounted (26) coaxially of the element (28). The element (28) and pan (26) define a cylindrically shaped venturi (32) therebetween into which powder is fed. The venturi (32) has an inlet (34) and outlet (38) radially spaced apart. Means is provided for rotating the element (28) within the pan (26) at speeds in excess of that required to throw the powder from the element (28) by centrifugal force. The element (28) draws ambient air through the venturi (32) and atomizes and deagglomerates powder fed into the venturi inlet (34) thereby forming a uniformly flowing cloud of particulate material which is uniform both longitudinally and laterally of said axis. The invention also provides an atomizer feeder (18) and an atomizer feeder combination deagglomerator combination with a feeder such a disclosed in U.S. Patent No. 5,314,090 which is particularly useful in wide web coating applications to produce a particulate cloud which is uniform both laterally and longitudinally of the web and uniform in both particulate distribution and particulate size throughout the uniformly flowing cloud.
EP97111148A 1996-07-10 1997-07-03 Powder atomizer Expired - Lifetime EP0818246B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/680,243 US5769276A (en) 1996-07-10 1996-07-10 Powder atomizer
US873929 1997-06-12
US08/873,929 US6109481A (en) 1996-07-10 1997-06-12 Powder atomizer
US680243 2000-10-05

Publications (3)

Publication Number Publication Date
EP0818246A2 EP0818246A2 (en) 1998-01-14
EP0818246A3 true EP0818246A3 (en) 1998-04-29
EP0818246B1 EP0818246B1 (en) 2002-05-02

Family

ID=27102417

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97111148A Expired - Lifetime EP0818246B1 (en) 1996-07-10 1997-07-03 Powder atomizer

Country Status (10)

Country Link
EP (1) EP0818246B1 (en)
JP (1) JPH10118535A (en)
CN (1) CN1078824C (en)
AT (1) ATE216921T1 (en)
AU (1) AU738351B2 (en)
CA (1) CA2210647A1 (en)
DE (1) DE69712270T2 (en)
DK (1) DK0818246T3 (en)
RU (1) RU2183510C2 (en)
SG (2) SG90768A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5996855A (en) * 1998-02-27 1999-12-07 Material Sciences Corporation Cross-feed auger and method
US6569494B1 (en) 2000-05-09 2003-05-27 3M Innovative Properties Company Method and apparatus for making particle-embedded webs
DE10317919B4 (en) * 2003-04-17 2005-12-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for coating a substrate with a liquid or particulate coating material
JP2017027958A (en) * 2016-10-25 2017-02-02 新日鉄住金エンジニアリング株式会社 Thin film electrostatic coating device
DE202019105107U1 (en) 2019-09-16 2020-12-22 Andreas Ritterbach Device for coating components such as frame parts, sheet metal parts or profile parts
CN114180224B (en) * 2021-12-15 2024-03-22 株洲时代电气绝缘有限责任公司 Powder smearing device for preventing adhesion after mica tape rolling in mica tape production line

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH180010A (en) * 1935-02-02 1935-10-15 Seigne Georges Device for spraying a substance.
US3299853A (en) * 1964-01-16 1967-01-24 Amsted Ind Inc Apparatus for coating elongated objects
US5314090A (en) * 1992-03-23 1994-05-24 Terronics Development Corporation Material feeder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3028256A (en) * 1958-12-31 1962-04-03 Massoud T Simnad Method for forming a coating of molybdenum carbide on a carbon body
US3133833A (en) * 1961-06-01 1964-05-19 Rca Corp Powder cloud generating apparatus
US3592394A (en) * 1969-06-24 1971-07-13 Alfred D Sinden Centrifugal belt thrower

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH180010A (en) * 1935-02-02 1935-10-15 Seigne Georges Device for spraying a substance.
US3299853A (en) * 1964-01-16 1967-01-24 Amsted Ind Inc Apparatus for coating elongated objects
US5314090A (en) * 1992-03-23 1994-05-24 Terronics Development Corporation Material feeder

Also Published As

Publication number Publication date
CN1078824C (en) 2002-02-06
EP0818246B1 (en) 2002-05-02
AU2848497A (en) 1998-01-29
AU738351B2 (en) 2001-09-13
EP0818246A2 (en) 1998-01-14
CN1176852A (en) 1998-03-25
RU2183510C2 (en) 2002-06-20
MX9705060A (en) 1998-05-31
DK0818246T3 (en) 2002-08-19
CA2210647A1 (en) 1998-01-10
SG60083A1 (en) 1999-03-30
JPH10118535A (en) 1998-05-12
DE69712270D1 (en) 2002-06-06
DE69712270T2 (en) 2002-12-12
ATE216921T1 (en) 2002-05-15
SG90768A1 (en) 2002-08-20

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