Patents by Inventor David E. O'Ryan
David E. O'Ryan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7258784Abstract: A method and system for separating a particulate contaminate from a contaminated liquid medium involves filtering the contaminated liquid medium with a filter element having an afflux surface made of plastic particles that are sintered together. The contaminated liquid medium is introduced into a vessel, brought into contact with the filter element, where the liquid medium is separated from the particulate contaminant, and the separated liquid medium withdrawn from the filter element.Type: GrantFiled: June 10, 2003Date of Patent: August 21, 2007Assignee: Envirodyne Technologies, Inc.Inventors: David E. O'Ryan, Thomas P. Tripepi, Frank Schimmelmann, Timothy D. Hanna, Urs Herding
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Publication number: 20040251216Abstract: A method and system for separating a particulate contaminate from a contaminated liquid medium involves filtering the contaminated liquid medium with a filter element having an afflux surface made of plastic particles that are sintered together. The contaminated liquid medium is introduced into a vessel, brought into contact with the filter element, where the liquid medium is separated from the particulate contaminant, and the separated liquid medium withdrawn from the filter element.Type: ApplicationFiled: June 10, 2003Publication date: December 16, 2004Inventors: David E. O'Ryan, Thomas P. Tripepi, Frank Schimmelmann, Timothy D. Hanna, Urs Herding
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Publication number: 20030046909Abstract: A powder paint reclamation collector includes an upper chamber for collecting powder paint particles from a paint booth and a lower chamber that receives the particles from the upper chamber. A vacuum line communicates with the lower chamber retrieving the particles from the collector and transferring the particles to a reclamation system. An air chamber receives pressurized air from an air supply and communicates with the lower chamber through a porous plate. Air bleeds through the porous plate into lower and upper chambers for fluidizing the paint particles. The porous plate and an air chamber floor angle downward from the lower chamber towards the vacuum line to improve the flow of fluidized paint particles into the vacuum line.Type: ApplicationFiled: October 29, 2002Publication date: March 13, 2003Inventors: David John Cole, Charlotte E. Kelly, Richard D. Burke, David E. O'Ryan
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Patent number: 6471737Abstract: A powder paint reclamation collector includes an upper chamber for collecting powder paint particles from a paint booth and a lower chamber that receives the particles from the upper chamber. A vacuum line communicates with the lower chamber retrieving the particles from the collector and transferring the particles to a reclamation system. An air chamber receives pressurized air from an air supply and communicates with the lower chamber through a porous plate. Air bleeds through the porous plate into lower and upper chambers for fluidizing the paint particles. The porous plate and an air chamber floor angle downward from the lower chamber towards the vacuum line to improve the flow of fluidized paint particles into the vacuum line.Type: GrantFiled: December 26, 2000Date of Patent: October 29, 2002Assignee: Durr Industries, Inc.Inventors: David John Cole, Charlotte E. Kelly, Richard D. Burke, David E. O'Ryan
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Publication number: 20020078668Abstract: A powder paint reclamation collector includes an upper chamber for collecting powder paint particles from a paint booth and a lower chamber that receives the particles from the upper chamber. A vacuum line communicates with the lower chamber retrieving the particles from the collector and transferring the particles to a reclamation system. An air chamber receives pressurized air from an air supply and communicates with the lower chamber through a porous plate. Air bleeds through the porous plate into lower and upper chambers for fluidizing the paint particles. The porous plate and an air chamber floor angle downward from the lower chamber towards the vacuum line to improve the flow of fluidized paint particles into the vacuum line.Type: ApplicationFiled: December 26, 2000Publication date: June 27, 2002Inventors: David John Cole, Charlotte E. Kelly, Richard D. Burke, David E. O'Ryan
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Patent number: 5782943Abstract: An integrated powder collection system for paint spray booths is provided for paint spray booths having a floor through which overspray and air are exhausted. The powder collection system includes at least two sloped surfaces disposed beneath the floor for defining at least one longitudinal slot therebetween. At least one longitudinal air slide is disposed beneath the at least one slot, and a pulsed vacuum source is connected to a filter cassette which is disposed beneath the floor and laterally to a side of a space defined vertically below the at least one longitudinal slot.Type: GrantFiled: August 9, 1996Date of Patent: July 21, 1998Assignee: ABB Flexible Automation Inc.Inventors: David E. O'Ryan, Richard D. Burke
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Patent number: 5603566Abstract: A powder hopper with an internal air assist is provided with at least one vertically extending tube having a plurality of air outlet ports which are utilized in agitating the powder within a powder chamber. According to a first embodiment, the vertically extending tubes are rotated about a central axis. According to a second embodiment, the vertically extending tube is divided up into a plurality of zones which are sequentially provided with pulses of compressed air, thereby providing an equivalent air agitation rotating action without the requirement of rotating the vertically extending tube.Type: GrantFiled: November 21, 1995Date of Patent: February 18, 1997Assignee: ABB Flexible Automation Inc.Inventors: David E. O'Ryan, Richard D. Burke
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Patent number: 5017324Abstract: A method and apparatus for forming a non-woven pad consisting of fibrous material in which highly moisture-absorbent particles are intermixed with the fibrous material throughout a predetermined portion of the thickness of the non-woven pad. The non-woven pad is formed atop a conveyor moving through a chamber which has a duct connected to a source of vacuum operable to draw fibrous material injected into the chamber onto the conveyor. A spray gun or an extension thereof is positioned within the chamber relative to the fibrous material atop the conveyor, and is operated to discharge moisture-absorbent material at a predetermined velocity, such that the moisture-absorbent material is intermixed with the fibrous material throughout preferably a center layer of the thickness of the non-woven pad while forming boundary layers on either side of the center layer which are substantially free of moisture-absorbent material.Type: GrantFiled: January 19, 1990Date of Patent: May 21, 1991Assignee: Nordson CorporationInventors: Thomas A. Kaiser, Douglas C. Mulder, David E. O'Ryan, Douglas A. Schneider, Rodney L. Ward
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Patent number: 4927346Abstract: An apparatus for forming a non-woven pad consisting of fibrous material in which highly moisture-absorbent particles are intermixed with the fibrous material throughout a predetermined portion of the thickness of the non-woven pad. The non-woven pad is formed atop a conveyor moving through a chamber which has a duct connected to a source of vacuum operable to draw fibrous material injected into the chamber onto the conveyor. A spray gun or an extension thereof is positioned within the chamber relative to the fibrous material atop the conveyor, and is operated to discharge moisture-absorbent material at a predetermined velocity, such that the moisture-absorbent material is intermixed with the fibrous material throughout preferably a center layer of the thickness of the non-woven pad while forming boundary layers on either side of the center layer which are substantially free of moisture-absorbent material.Type: GrantFiled: May 2, 1989Date of Patent: May 22, 1990Assignee: Nordson CorporationInventors: Thomas A. Kaiser, Douglas C. Mulder, David E. O'Ryan, Douglas A. Schneider, Rodney L. Ward
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Patent number: 4634058Abstract: A powder spray gun for spraying solid particulate powder material wherein there is a venturi sleeve mounted internally of the gun barrel, within the rear of an extension tube, for increasing the velocity of powder conveyed therethrough and for generating turbulence in the powder so as to better dispense the powder throughout the powder pattern emitted from the gun.Type: GrantFiled: December 13, 1984Date of Patent: January 6, 1987Assignee: Nordson CorporationInventors: Thomas E. Hollstein, David E. O'Ryan, Joseph C. Waryu
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Patent number: 4630777Abstract: An electrostatic spray gun for spraying solid particulate powder materials while entrained in a gas medium, including an electrically non-conductive housing having an electrode extending forwardly therefrom and a straight electrically non-conductive powder transport tube adjustably and replaceably mounted within the housing so as to enable the discharge end of the tube to be positionably adjusted relative to the electrode or to be replaced with a tube of differing internal diameter so as to vary the transport velocity at which the powder is emitted from the discharge end of the tube.Type: GrantFiled: December 20, 1985Date of Patent: December 23, 1986Assignee: Nordson CorporationInventors: Thomas E. Hollstein, James J. Turner, Douglas C. Mulder, David E. O'Ryan
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Patent number: 4613083Abstract: A powder spray gun which, in the presently preferred embodiment, is particularly adapted for spraying a particulate powder spray onto the interior surfaces of containers and other target objects in a confined area. The apparatus includes a rigid tubular support member and a flexible powder transport tube. The rigid support member carries a high voltage cable having a charging electrode at one end. The flexible tube terminates in a discharge nozzle which may be adjustably mounted to the support member adjacent the charging electrode so as to permit variation of the angle at which the powder is released from the nozzle relative to the longitudinal axis of the support member. Intermediate the discharge nozzle and an upstream portion of the powder transport tube which is connected to the support member, the flexible tube is smoothly curved so as to prevent any sharp corners in the transport tube or the nozzle within which powder could collect and interrupt smooth, even discharge of powder from the gun.Type: GrantFiled: June 21, 1984Date of Patent: September 23, 1986Assignee: Nordson CorporationInventors: Douglas C. Mulder, David E. O'Ryan
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Patent number: 4561380Abstract: A method and apparatus is disclosed, in the presently preferred embodiment, for applying powdered adhesive to non-woven fabric material. The apparatus includes a novel powder spray gun wherein there is an air flow amplifier contained within the gun for accelerating the velocity of powder emitted from the gun and sprayed onto the top of a conveyorized web of the fabric material. The apparatus also includes a novel system for supplying powder to the spray gun, which system includes a first powder pump, a back-up pump and a control circuit responsive to detection of reduced powder flow to the gun to switch supply from the first pump to the back-up pump.Type: GrantFiled: June 21, 1984Date of Patent: December 31, 1985Assignee: Nordson CorporationInventors: Douglas C. Mulder, David E. O'Ryan
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Patent number: RE33482Abstract: A powder spray gun which, in the presently preferred embodiment, is particularly adapted for spraying a particular powder spray onto the interior surfaces of containers and other target objects in a confined area. The apparatus includes a rigid tubular support member and a flexible powder transport tube. The rigid support member carries a high voltage cable having a charging electrode at one end. The flexible tube terminates in a discharge nozzle which may be adjustably mounted to the support member adjacent the charging electrode so as to permit variation of the angle at which the powder is released from the nozzle relative to the longitudinal axis of the support member. Intermediate the discharge nozzle and an upstream portion of the powder transport tube which is connected to the support member, the flexible tube is smoothly curved so as to prevent any sharp corners in the transport tube or the nozzle within which powder could collect and interrupt smooth, even discharge of powder from the gun.Type: GrantFiled: September 8, 1988Date of Patent: December 11, 1990Assignee: Nordson CorporationInventors: Douglas C. Mulder, David E. O'Ryan