[특허]Apparatus for electrostatic powder spray coating and resulting coated product

[미국특허] Apparatus for electrostatic powder spray coating and resulting coated product 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B05B-005/02
출원번호	US-0061838 (1987-06-11)
발명자 / 주소	Kiefer Steven L. (Argos IN) Hart Stephen (Warsaw IN) Creech Ronald G. (Warsaw IN)
출원인 / 주소	Morton Thiokol, Inc. (Chicago IL 02)
인용정보	피인용 횟수 : 13 인용 특허 : 4

초록 ▼

An electrostatic powder spray coating method and apparatus for producing evenly coated continuous films of thermoplastic and thermosetting powders on substrates or parts having electrically conductive geometric complex surfaces enables the use, without the occurrence of “cobwebbing,”of significantly higher charging voltages for the spray gun in the spray coating of preheated substrates and parts, thus allowing faster coating lines. The invention features the use of a grounded electrically conductive ring for grounding the ionized field in the powder discharge region of the spray gun.

대표청구항 ▼

Apparatus for the electrostatic powder spray coating of a grounded preheated part having an electrically conductive surface comprising, a source of comminuted powder coating material, an actuatable electrostatic powder spray gun having a charging electrode of the corona charging type, said gun having a nozzle at the front end thereof and adapted when actuated to effect the discharge of comminuted powder coating material from said nozzle in the form of a cloud for deposition on the surface of said part, means associated with said source of powder coating material and with said gun for delivering said powder coating material to said gun for discharge from the nozzle thereof, means for energizing the charging electrode of said gun to apply an electrostatic charge to said comminuted powder charge material as said material passes through said gun, and a grounded electrically conductive member positioned in operative relation with the front end of said gun at a location remote from said part to be coated, wherein said grounded electrically conductive member is put between said gun and said part to be coated to cause a more uniform distribution of charged powder particles in the cloud of charges particles thus avoiding a tendency toward cobwebbing, whereby to effect substantial evenness in the coverage of the comminuted material deposited on the surface of said preheated part and thereby the melting of said comminuted powder coating material to effect the coating of the surface of said part with substantially even coverage with a continuous film.

이 특허에 인용된 특허 (4) 인용/피인용 타임라인 분석

Gillette Donald J. (Guilford CT), Control grid in electrostatic fluidized bed coater.
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Smead Robert G. (St. Charles IL) Richards Thomas J. (Peoria IL) Lanchantin ; Jr. Charles E. (Peoria IL), Electrodynamic painting system and method.
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Itoh Tsutomu (Tokyo JPX), Electrostatic power painting head.
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Sickles James E. (Glenshaw PA), Electrostatic spray coating apparatus.
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이 특허를 인용한 특허 (13) 인용/피인용 타임라인 분석

Loewy Zvi Gerald ; Roach William Ronald ; Singh Bawa, Deposited reagents for chemical processes.
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Poliniak Eugene Samuel ; Sun Hoi Cheong Steve ; Desai Nitin Vithalbhai ; Kumar Nalin ; Roach William Ronald ; Hammer Lawrence Harrison ; Southgate Peter David ; Singh Bawa ; Rivenburg Howard Christop, Dry powder deposition apparatus.
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Ramani Karthik ; Woolard Daniel Edward ; Duvall Mark Stephen, Method and apparatus for composite manufacture.
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Fotland, Richard; Bowers, John; Jameson, William, Method and apparatus for producing uniform small portions of fine powders and articles thereof.
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Fotland, Richard; Bowers, John; Jameson, William, Method for depositing particles onto a substrate using an alternating electric field.
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Zvi Gerald Loewy ; William Ronald Roach ; Bawa Singh, Method of fabricating a support with dry deposited compounds thereon.
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Poliniak, Eugene Samuel; Steve Sun, Hoi Cheong; Desai, Nitin Vithalbhai; Kumar, Nalin; Roach, William Ronald; Hammer, Lawrence Harrison; Southgate, Peter David; Singh, Bawa; Rivenburg, Howard Christo, Methods using dry powder deposition apparatuses.
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Poliniak, Eugene Samuel; Sun, Hoi Cheong Steve; Desai, Nitin Vithalbhai; Kumar, Nalin; Roach, William Ronald; Hammer, Lawrence Harrison; Southgate, Peter David; Singh, Bawa; Rivenburg, Howard Christo, Methods using dry powder deposition apparatuses.
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Crum Gerald W. ; Knobbe Alan J. ; Haller Curtis B., Mounting assembly for spray gun with anti-back-ionization probe.
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Hutchins Darrell K., Powder charger and sprayer.
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Loewy Zvi Gerald ; Singh Bawa, Solid support with attached molecules.
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Rehman William R. ; Lader Harry J. ; Perkins Jeffrey A., Spray gun having a current monitored anti-back-ionization probe.
상세보기
Klein Richard G. ; Crum Gerald W. ; Guskov Sergey V., Spray gun having an anti-back-ionization probe with a control system therefor.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Apparatus for electrostatic powder spray coating and resulting coated product 원문보기