Patents by Inventor Joseph G. Schroeder
Joseph G. Schroeder 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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Publication number: 20130294848Abstract: A pump for particulate material includes a pump chamber wherein material flows into the pump chamber under negative pressure and flows out of the pump chamber under positive pressure. A plurality of pinch valves are provided to control flow of material into and out of the pump chamber. The pinch valves are operated independent of each other and of the pump cycle rate. A modular design of the pump is provided. A pump control feature is provided for air flow rate control during positive and negative pressure conditions.Type: ApplicationFiled: June 25, 2013Publication date: November 7, 2013Inventors: Terrence M. Fulkerson, Stephen G. Nemethy, Terry John Thompson, Jeffrey A. Perkins, Joseph G. Schroeder
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Patent number: 8491227Abstract: A pump for particulate material includes a pump chamber wherein material flows into the pump chamber under negative pressure and flows out of the pump chamber under positive pressure. A plurality of pinch valves are provided to control flow of material into and out of the pump chamber. The pinch valves are operated independent of each other and of the pump cycle rate. A modular design of the pump is provided. A pump control feature is provided for air flow rate control during positive and negative pressure conditions.Type: GrantFiled: April 11, 2012Date of Patent: July 23, 2013Assignee: Nordson CorporationInventors: Terrence M. Fulkerson, Stephen G. Nemethy, Terry John Thompson, Jeffrey A. Perkins, Joseph G. Schroeder
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Patent number: 8353469Abstract: A nozzle for a powder spray gun optionally includes an internal filter that allows air to be added to the powder flow within the nozzle shell. The nozzle may optionally include an off-axis outlet slot relative to a main flow axis of the powder into the nozzle shell so that powder encounters an obstruction before exiting through the outlet slot.Type: GrantFiled: January 31, 2012Date of Patent: January 15, 2013Assignee: Nordson CorporationInventors: Terrence M. Fulkerson, Michael R. Sanner, Brian D. Mather, Joseph G. Schroeder, Jeffery Edward Dailidas
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Patent number: 8312835Abstract: A powder spray for lengthy parts includes a booth wall structure comprised primarily of doors. A moveable roof may be raised and lowered to clean powder overspray from the interior surfaces of the booth. A cleaning process may be performed with a sideways extraction mode and a downward extraction mode. The mode change occurs when a bulkhead that travels with the moveable roof blocks the inlet duct to the recovery system. The recovery system may be a cyclone system for example. The doors of the booth are hinged so that they can be positioned for spraying operations and cleaning operations. Live hinge designs are provided and hose stress relief designs are also provided. The roof may carry accumulators for pressurized air that feed cleaning nozzles as the roof descends. In addition, exhaust air may be used to assist cleaning the interior surfaces as the roof descends. All of the energy provided for cleaning and color change may be provided by accumulators.Type: GrantFiled: January 15, 2010Date of Patent: November 20, 2012Assignee: Nordson CorporationInventors: Jeffrey R. Shutic, Joseph G. Schroeder, Jeffery E. Dailidas, Kenneth Kreeger
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Publication number: 20120209437Abstract: A pump for particulate material includes a pump chamber wherein material flows into the pump chamber under negative pressure and flows out of the pump chamber under positive pressure. A plurality of pinch valves are provided to control flow of material into and out of the pump chamber. The pinch valves are operated independent of each other and of the pump cycle rate. A modular design of the pump is provided. A pump control feature is provided for air flow rate control during positive and negative pressure conditions.Type: ApplicationFiled: April 11, 2012Publication date: August 16, 2012Applicant: NORDSON CORPORATIONInventors: Terrence M. Fulkerson, Stephen G. Nemethy, Terry John Thompson, Jeffrey A. Perkins, Joseph G. Schroeder
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Publication number: 20120137969Abstract: A nozzle for a powder spray gun optionally includes an internal filter that allows air to be added to the powder flow within the nozzle shell. The nozzle may optionally include an off-axis outlet slot relative to a main flow axis of the powder into the nozzle shell so that powder encounters an obstruction before exiting through the outlet slot.Type: ApplicationFiled: January 31, 2012Publication date: June 7, 2012Applicant: NORDSON CORPORATIONInventors: Terrence M. Fulkerson, Michael R. Sanner, Brian D. Mather, Joseph G. Schroeder, Jeffery Edward Dailidas
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Publication number: 20120114864Abstract: A color changer has a common feed passage that is connected to two or more inlet passages. The common feed passage can be reverse purged in a direction that is opposite a direction of powder flow through the common feed passage. A valve element seals a supply port that connects the inlet passage to the common feed passage to eliminate dead space and form a near bore line seal. The valve element is an elastic material that expands in response to applied compressed air inside the valve element.Type: ApplicationFiled: January 18, 2012Publication date: May 10, 2012Applicant: NORDSON CORPORATIONInventors: Terrence M. Fulkerson, Terry John Thompson, Jeffery Edward Dailidas, Kenneth A. Kreeger, Joseph G. Schroeder
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Patent number: 8167517Abstract: A pump for particulate material includes a pump chamber wherein material flows into the pump chamber under negative pressure and flows out of the pump chamber under positive pressure. A plurality of pinch valves are provided to control flow of material into and out of the pump chamber. The pinch valves are operated independent of each other and of the pump cycle rate. A modular design of the pump is provided. A pump control feature is provided for air flow rate control during positive and negative pressure conditions.Type: GrantFiled: May 6, 2010Date of Patent: May 1, 2012Assignee: Nordson CorporationInventors: Terrence M. Fulkerson, Stephen G. Nemethy, Terry John Thompson, Jeffrey A. Perkins, Joseph G. Schroeder
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Patent number: 8132743Abstract: A color changer has a common feed passage that is connected to two or more inlet passages. The common feed passage can be reverse purged in a direction that is opposite a direction of powder flow through the common feed passage. A valve element seals a supply port that connects the inlet passage to the common feed passage to eliminate dead space and form a near bore line seal. The valve element is an elastic material that expands in response to applied compressed air inside the valve element.Type: GrantFiled: March 26, 2010Date of Patent: March 13, 2012Assignee: Nordson CorporationInventors: Terrence M. Fulkerson, Terry John Thompson, Jeffery Edward Dailidas, Kenneth A. Kreeger, Joseph G. Schroeder
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Patent number: 8123147Abstract: A nozzle for a powder spray gun optionally includes an internal filter that allows air to be added to the powder flow within the nozzle shell. The nozzle may optionally include an off-axis outlet slot relative to a main flow axis of the powder into the nozzle shell so that powder encounters an obstruction before exiting through the outlet slot.Type: GrantFiled: April 21, 2008Date of Patent: February 28, 2012Assignee: Nordson CorporationInventors: Terrence M. Fulkerson, Michael R. Sanner, Brian D. Mather, Joseph G. Schroeder, Jeffery Edward Dailidas
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Publication number: 20120021133Abstract: A powder hopper is provided with a low turbulence zone for supplying powder to a spray gun. The low turbulence zone is defined by a baffle inside the hopper with the low turbulence zone being within a volume of the baffle, and an annular zone between the baffle and the hopper is used to bulk feed powder into the hopper. The low turbulence zone may alternatively be in the annular zone with powder added to the volume of the baffle. One preferred application for this hopper is in connection with the use of fine powder coating materials to coat the interior of small diameter cans.Type: ApplicationFiled: December 16, 2009Publication date: January 26, 2012Applicant: NORDSON CORPORATIONInventors: Joseph G. Schroeder, Terrence M. Fulkerson, Angelo Bellini, Ralf Scheuffgen, Claus Ruschitzka
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Publication number: 20110114018Abstract: A nozzle assembly for a material application device includes an expansion chamber for slowing down the velocity of powder fed to the nozzle from a dense phase pump. The nozzle assembly includes a nozzle insert that forms the expansion chamber and provides air assist function. The nozzle includes an integral deflector, and further includes a passageway for a charging electrode so that the electrical path is routed away from the powder path, while permitting the electrode tip to be centered in the powder spray pattern from the nozzle. The nozzle also includes air wash for the electrode. The nozzle outlet orifice has a cross-sectional area that is equal to or greater than the inlet cross-sectional area so that a slow moving dense phase powder cloud is produced by the nozzle.Type: ApplicationFiled: January 25, 2011Publication date: May 19, 2011Applicant: Nordson CorporationInventors: Brian D. Mather, James V. Bachman, Joseph G. Schroeder, Terrence M. Fulkerson, Herman E. Turner
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Publication number: 20100314462Abstract: A nozzle assembly for a material application device includes an expansion chamber for slowing down the velocity of powder fed to the nozzle from a dense phase pump. The nozzle assembly includes a nozzle insert that forms the expansion chamber and provides air assist function. The nozzle includes an integral deflector, and further includes a passageway for a charging electrode so that the electrical path is routed away from the powder path, while permitting the electrode tip to be centered in the powder spray pattern from the nozzle. The nozzle also includes air wash for the electrode. The nozzle outlet orifice has a cross-sectional area that is equal to or greater than the inlet cross-sectional area so that a slow moving dense phase powder cloud is produced by the nozzle.Type: ApplicationFiled: August 4, 2010Publication date: December 16, 2010Applicant: Nordson CorporationInventors: Brian D. Mather, James V. Bachman, Joseph G. Schroeder, Terrence M. Fulkerson, Herman E. Turner
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Patent number: 7793869Abstract: A nozzle assembly for a material application device includes an expansion chamber for slowing down the velocity of powder fed to the nozzle from a dense phase pump. The nozzle assembly includes a nozzle insert that forms the expansion chamber and provides air assist function. The nozzle includes an integral deflector, and further includes a passageway for a charging electrode so that the electrical path is routed away from the powder path, while permitting the electrode tip to be centered in the powder spray pattern from the nozzle. The nozzle also includes air wash for the electrode. The nozzle outlet orifice has a cross-sectional area that is equal to or greater than the inlet cross-sectional area so that a slow moving dense phase powder cloud is produced by the nozzle.Type: GrantFiled: May 31, 2005Date of Patent: September 14, 2010Assignee: Nordson CorporationInventors: Brian D. Mather, James V. Bachman, Joseph G. Schroeder, Terrence M. Fulkerson, Herman E. Turner
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Publication number: 20100221125Abstract: A pump for particulate material includes a pump chamber wherein material flows into the pump chamber under negative pressure and flows out of the pump chamber under positive pressure. A plurality of pinch valves are provided to control flow of material into and out of the pump chamber. The pinch valves are operated independent of each other and of the pump cycle rate. A modular design of the pump is provided. A pump control feature is provided for air flow rate control during positive and negative pressure conditions.Type: ApplicationFiled: May 6, 2010Publication date: September 2, 2010Applicant: NORDSON CORPORATIONInventors: Terrence M. Fulkerson, Stephen G. Nemethy, Terry John Thompson, Jeffrey A. Perkins, Joseph G. Schroeder
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Publication number: 20100176215Abstract: A color changer has a common feed passage that is connected to two or more inlet passages. The common feed passage can be reverse purged in a direction that is opposite a direction of powder flow through the common feed passage. A valve element seals a supply port that connects the inlet passage to the common feed passage to eliminate dead space and form a near bore line seal. The valve element is an elastic material that expands in response to applied compressed air inside the valve element.Type: ApplicationFiled: March 26, 2010Publication date: July 15, 2010Applicant: NORDSON CORPORATIONInventors: Terrence M. Fulkerson, Terry John Thompson, Jeffery Edward Dailidas, Kenneth A. Kreeger, Joseph G. Schroeder
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Publication number: 20100175616Abstract: A powder spray for lengthy parts includes a booth wall structure comprised primarily of doors. A moveable roof may be raised and lowered to clean powder overspray from the interior surfaces of the booth. A cleaning process may be performed with a sideways extraction mode and a downward extraction mode. The mode change occurs when a bulkhead that travels with the moveable roof blocks the inlet duct to the recovery system. The recovery system may be a cyclone system for example. The doors of the booth are hinged so that they can be positioned for spraying operations and cleaning operations. Live hinge designs are provided and hose stress relief designs are also provided. The roof may carry accumulators for pressurized air that feed cleaning nozzles as the roof descends. In addition, exhaust air may be used to assist cleaning the interior surfaces as the roof descends. All of the energy provided for cleaning and color change may be provided by accumulators.Type: ApplicationFiled: January 15, 2010Publication date: July 15, 2010Applicant: NORDSON CORPORATIONInventors: Jeffrey R. Shutic, Joseph G. Schroeder, Jeffery E. Dailidas, Kenneth Kreeger
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Patent number: 7731456Abstract: A pump for particulate material includes a pump chamber wherein material flows into the pump chamber under negative pressure and flows out of the pump chamber under positive pressure. A plurality of pinch valves are provided to control flow of material into and out of the pump chamber. The pinch valves are operated independent of each other and of the pump cycle rate. A modular design of the pump is provided. A pump control feature is provided for air flow rate control during positive and negative pressure conditions.Type: GrantFiled: June 23, 2006Date of Patent: June 8, 2010Assignee: Nordson CorporationInventors: Terrence M. Fulkerson, Stephen G. Nemethy, Terry John Thompson, Jeffrey A. Perkins, Joseph G. Schroeder
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Patent number: 7712681Abstract: A color changer has a common feed passage that is connected to two or more inlet passages. The common feed passage can be reverse purged in a direction that is opposite a direction of powder flow through the common feed passage. A valve element seals a supply port that connects the inlet passage to the common feed passage to eliminate dead space and form a near bore line seal. The valve element is an elastic material that expands in response to applied compressed air inside the valve element.Type: GrantFiled: June 3, 2005Date of Patent: May 11, 2010Assignee: Nordson CorporationInventors: Terrence M. Fulkerson, Terry John Thompson, Jeffery Edward Dailidas, Kenneth A. Kreeger, Joseph G Schroeder
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Patent number: 7665414Abstract: A powder spray for lengthy parts includes a booth wall structure comprised primarily of doors. A moveable roof may be raised and lowered to clean powder overspray from the interior surfaces of the booth. A cleaning process may be performed with a sideways extraction mode and a downward extraction mode. The mode change occurs when a bulkhead that travels with the moveable roof blocks the inlet duct to the recovery system. The recovery system may be a cyclone system for example. The doors of the booth are hinged so that they can be positioned for spraying operations and cleaning operations. Live hinge designs are provided and hose stress relief designs are also provided. The roof may carry accumulators for pressurized air that feed cleaning nozzles as the roof descends. In addition, exhaust air may be used to assist cleaning the interior surfaces as the roof descends. All of the energy provided for cleaning and color change may be provided by accumulators.Type: GrantFiled: June 20, 2006Date of Patent: February 23, 2010Assignee: Nordson CorporationInventors: Jeffrey R. Shutic, Joseph G. Schroeder, Jeffrey E. Dailidas, Kenneth Kreeger