With Axially Spaced Impeller Surfaces Patents (Class 239/702)
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Patent number: 8905325Abstract: This spraying member (10) comprises at least one outer bowl (100) and one inner bowl (200), each bowl defining a spraying edge (101, 201), one inner spreading surface (102, 202) and one outer surface (103, 203). The inner bowl (200) is positioned radially on the inside of the outer bowl (100), whereas a volume (V1) defined between the inner surface (102) of the outer bowl (100) and the outer surface (203) of the inner bowl (200) has a thickness (e), corresponding to the distance between this inner surface (102) and this outer surface (203), decreasing between a first value (e1), taken at the zone for inlet of cleaning product into the volume (V1), and a second value (e2), taken at the spraying edge (101) of the outer bowl (100). The spraying member (10) comprises means (68) for the central supply of the inner spreading surfaces (102, 202).Type: GrantFiled: April 22, 2008Date of Patent: December 9, 2014Assignee: Sames TechnologiesInventors: Patrick Ballu, Sylvain Perinet
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Patent number: 8590807Abstract: The present disclosure describes an atomizer having a body with an inner portion and an outer portion; an atomizer member; and outlet channels about the spraying axis (X1) for ejecting air so as to shape the spray of material. The atomizer also has an outlet chamber communicating with the outlet channels; and an inlet duct for feeding air to the outlet channels. The atomizer also includes at least two intermediate chambers juxtaposed and extending about the spraying axis (X1); axial intermediate channels, two juxtaposed intermediate chambers being interconnected via a set of intermediate channels distributed about the spraying axis (X1); and outlet ducts distributed about the spraying axis (X1).Type: GrantFiled: December 1, 2009Date of Patent: November 26, 2013Assignee: Sames TechnologiesInventors: Samuel Callendret, Olivier Gourbat, Sylvain Perinet, Patrick Ballu, Franck Gerstch, David Vincent
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Patent number: 7837135Abstract: The invention relates to an application element (1) for a rotary sprayer, in particular in the form of a bell-shaped plate or a rotary disc, with an overflow surface (8) which, during the coating operation, rotates together with the application element (1) and is overflowed by a coating agent to be applied, and with a surface layer which is located on the overflow surface (8) and on which a thin coating agent film forms with a certain film thickness during operation, wherein boundary surface friction acts between the coating agent film and the surface layer. It is proposed that the surface layer reduces the boundary surface friction between the coating agent film and the overflow surface (8). Furthermore, the invention comprises an associated operating method.Type: GrantFiled: May 7, 2007Date of Patent: November 23, 2010Assignee: Durr Systems GmbHInventors: Hans-Jurgen Nolte, Harald Gummlich
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Patent number: 7721976Abstract: An atomizer assembly (10) drives an atomizing bell (108) to apply paint onto a part (14). The atomizer assembly (10) includes a core (24) having at least one paint line (26) extending therethrough, a turbine device (40) circumscribing an axis (A) and disposed in the core (24), and a turbine unit (62) surrounding the pain line (26) and having a shaft (104) rotatable relative the turbine device (40) with several turbine blades (130) connected to the shaft (104). A plurality of nozzles (64, 66, 68) are defined in the turbine device (40) and are positioned relative a turbine wheel (106) connected to the shaft (104) to drive fluid, i.e. gas onto the turbine blades (130). An annular wall (94) extends outwardly from one of the terminal ends of the turbine device (40) to define a seat (96) for engaging the core (24) to maintain a fixed gap between the paint line (26) and the shaft (104) and to eliminate contact therebetween.Type: GrantFiled: October 14, 2005Date of Patent: May 25, 2010Assignee: Durr Systems, Inc.Inventors: Hans J. Nolte, Harry Krumma, Frank Herre, Michael Baumann, Stefano Giuliano, Bjorn Lind
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Patent number: 7384670Abstract: A rotary atomizer (1) has a rotary atomizing head (4) driven by an air motor (2) at a rotational speed of 4,000˜5,000 rpm, for example. A coating material is supplied to a central portion of the rotary atomizing head (4) through a paint supply pipe (5). The atomizer (1) further includes a supersonic horn (6) having a vibration plane (6a) located adjacent to the outer circumferential perimeter of the rotary atomizing head (4). The vibration plane (6a) is an inclined plane gradually increasing its diameter forward. The coating material immediately after spattered from the outer circumferential perimeter of the rotary atomizing head (4) is exposed to supersonic vibration from the vibration plane (6a), and it is atomized by the supersonic vibration to particles of a uniform grain size. At the same time, the atomized coating material is driven forward.Type: GrantFiled: March 26, 2004Date of Patent: June 10, 2008Assignee: Ransburg Industrial Finishing K.K.Inventors: Shinji Tani, Masahito Sakakibara, Michio Mitsui, Hiroshi Kobayashi, Kimiyoshi Nagai
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Patent number: 7131601Abstract: A rotational atomizer turbine of the present invention is designed to drive a bell-shaped disk in a rotational atomizer for a coating unit. The rotational atomizer turbine includes a housing, a rotatable turbine wheel with several turbine blades connected to a shaft and rotatably disposed in the housing. A plurality of nozzles are defined in the housing and are positioned relative the turbine wheel to drive fluid, i.e. gas onto the turbine blades. An intermediate chamber formed in the housing is fluidly communicated with and connected to the nozzles to hold gas therein. The intermediate chamber has a first inlet to supply gas. At least a second inlet is defined in the intermediate chamber for delivering gas into the intermediate chamber thereby increasing amount of gas therein to multiply a rotational speed of the rotatable turbine wheel as increased amount of gas is introduced to the turbine blades.Type: GrantFiled: December 17, 2003Date of Patent: November 7, 2006Assignee: Durr Systems, Inc.Inventors: Hans J. Nolte, Harry Krumma, Frank Herre, Michael Baumann, Stefano Giuliano, Bjorn Lind
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Patent number: 6817555Abstract: A high-speed rotary atomiser for applying powder coating includes a housing together with a rotatable bell disc arranged at the front of housing A guidance air arrangement in the form of a rotationally symmetrical air guidance body coaxial to bell disc is provided for shaping the powder cloud generated by the high-speed rotary atomizer, which air guidance body is mounted on the front of housing. Air guidance body has a jacket surface to which guidance air be so supplied that it flows forwards along jacket surface as a substantially rotationally symmetrical air curtain along jacket surface. The air curtain flowing over the jacket surface of air guidance body impinges on the powder cloud generated by bell disc and shapes it according to the quantity and velocity of the air curtain and according to the geometry of air guidance body.Type: GrantFiled: October 24, 2001Date of Patent: November 16, 2004Assignee: Eisenman Lacktechnik KGInventors: Jan Reichler, Erich Meyer
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Patent number: 6322011Abstract: An electrostatic coating system having a rotary atomizing device formed of a non-conductive body member having an opening in an outer end thereof, a semiconductive member is disposed on a side portion of the body member, a first lip devoid of the semiconductive member is disposed about the opening of the body member proximate the outer end thereof, and a second lip is disposed radially outwardly of the first lip, between the first lip and the inner end of the body member.Type: GrantFiled: March 14, 2000Date of Patent: November 27, 2001Assignee: Illinois Tool Works Inc.Inventor: Harold T. Allen
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Patent number: 5529246Abstract: An outer tube 5 is integrally rotated with a rotating disk 17. A powder supply passage 16 for supply of powder particles is formed between an inner tube 15 and the outer tube 5. A lower end of the inner tube 15 is secured to a sub-disk 23, and a distributing passage 25 is formed as a space between the sub-disk 23 and the rotating disk 17. Air including powder particles introduced into a separation passage 41 is separated into air and powder in the separation passage 41, and the particles are fed to the distributing passage 25 through the powder supply passage 16. The powder particles falling in the powder supply passage 16 undergo a swirling motion in accordance with the rotation of the outer tube 5, and owing to the swirling motion, the powder particles in the powder supply passage 16 are distributed uniformly in the circumferential direction.Type: GrantFiled: January 21, 1994Date of Patent: June 25, 1996Assignee: Ransburg Industrial Finishing K.K.Inventors: Eiji Saito, Takao Murakami
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Patent number: 4519549Abstract: An electrostatic coating process which comprises feeding a liquid paint in thin film form toward the circumferential edge of a high-velocity rotating member having a high voltage applied thereto along the inner circumferential surface thereof and atomizing the paint from the circumferential edge of the high-velocity rotating member; characterized in that a number of cuts are formed on the circumferential edge, and a stream of the paint flowing forwardly substantially in the axial direction of the high-velocity rotating member is converted at said circumferential edge into a number of diametrically outwardly flowing divided paint streams and simultaneously atomized and discharged. Preferably, the paint is fed to the inner circumferential surface of the rotating member through an annular paint flow passage having knurled grooves formed over its entire outer circumferential surface.Type: GrantFiled: September 28, 1982Date of Patent: May 28, 1985Assignee: Trinity Industrial CorporationInventors: Sadao Yokoe, Seimei Abe, Shoichi Wakata, Satosi Endou, Kazuyoshi Onozawa