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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Patent number: 7325750Abstract: Powder overspray that is extracted from a spray booth is recovered back to a powder supply that is used to supply powder to the spray guns inside the spray booth. The powder overspray extracted from the booth is separated from the high flow air stream by a separator such as a cyclone separator. The powder falls into a transfer pan and a vacuum is used to convey the powder from the transfer pan to a vacuum receiver. The powder is then discharged to the feed hopper in the feed center. The use of a vacuum to convey powder from the cyclone to the feed center in effect permits substantially all of the powder overspray to be recovered from the spray booth directly to the feed hopper with minimal dwell or residence time within the cyclone or vacuum receiver subsystems during a spraying operation. The receiver can be rotated for easy cleaning, and the vacuum line cleaned by one or more cleaning elements drawn through the vacuum line.Type: GrantFiled: June 25, 2001Date of Patent: February 5, 2008Assignee: Nordson CorporationInventors: Jeffrey R. Shutic, Larry R. Fenik, David Mancuso, Andrew M. Peddie, Erich W. Selic, Joseph G. Schroeder, Herman E. Turner
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Patent number: 7074274Abstract: Systems and methods for applying powder coating materials in electrostatic spray systems are provided. For example, a gravity feed of recovered powder coating from the recovery system to the feed system is disclosed. In addition, a powder feed system is disclosed wherein a powder suction lance assembly has only two operable positions, a first for feeding powder from a fluidized hopper and also corresponding to a purge position for a novel purge manifold, and a second retracted position for powder color changes and servicing. Also, a pump assembly block in physical communication with an air line attachment plate, a suction tube plate, and a hose manifold is disclosed. A plurality of attachment members removably attach the air attachment plate, a suction tube plate, and the hose manifold plate to the pump assembly block. Method for applying a first powder color and a second powder color in a powder feed center are also provided.Type: GrantFiled: September 15, 2000Date of Patent: July 11, 2006Assignee: Nordson CorporationInventors: Jeffrey R. Shutic, Edward L. Jones, Michael S. Thomas, Andrew M. Peddie, Kenneth A. Kreeger, Joseph G. Schroeder
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Patent number: 6977013Abstract: A central controller for a powder coating system has a single processor connected to a memory, a gun controller input/output device and gun control logic for controlling a characteristic of a spray gun. An air flow controller input/output device and air flow control logic for controlling a characteristic of a pump providing air flow may also be included. A process input/output device for electrically communicating with a process input or a process output may also be included. Part identification and tracking logic, gun triggering logic, gun movement logic, booth control logic, part profiling logic and system monitoring and logging logic may also be included.Type: GrantFiled: September 20, 2002Date of Patent: December 20, 2005Assignee: Nordson CorporationInventors: Joseph G. Schroeder, Vince Bednarz, Jeffrey Perkins, Stephen Nemethy
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Patent number: 6863920Abstract: A powder coating control system comprising a plurality of gun controls associated with a like plurality of powder spray guns. Each of the gun controls stores a plurality of presets spray parameters. Each of the gun controls responds to part identification signals and part position signals to select in real time one of the stored presets of spray parameters and trigger its respective powder spray gun ON and OFF to apply a powder coating to the moving part in accordance with the selected set of spray parameters. The control system further permits a gun purge cycle to be programmed either before or after the powder coating process is executed. The control system automatically initializes and brings each of the gun controls to an operable state on-line with the system control.Type: GrantFiled: April 6, 2004Date of Patent: March 8, 2005Assignee: Nordson CorporationInventors: Gerald W. Crum, Eddie W. Dixson, Jr., Charles L. Gatian, III, Jeanne Marie Leidy, William Mark Rucki, Joseph G. Schroeder, Cynthia Skelton-Becker
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Publication number: 20040191406Abstract: A powder coating control system comprising a plurality of gun controls associated with a like plurality of powder spray guns. Each of the gun controls stores a plurality of presets spray parameters. Each of the gun controls responds to part identification signals and part position signals to select in real time one of the stored presets of spray parameters and trigger its respective powder spray gun ON and OFF to apply a powder coating to the moving part in accordance with the selected set of spray parameters. The control system further permits a gun purge cycle to be programmed either before or after the powder coating process is executed. The control system automatically initializes and brings each of the gun controls to an operable state on-line with the system control.Type: ApplicationFiled: April 6, 2004Publication date: September 30, 2004Applicant: Nordson CorporationInventors: Gerald W. Crum, Eddie W. Dixson, Charles L. Gatian, Jeanne Marie Leidy, William Mark Rucki, Joseph G. Schroeder, Cynthia Skelton-Becker
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Patent number: 6796519Abstract: An electrostatic spray gun apparatus includes a spray gun housing and a nozzle attached to a spray end of the housing, and a powder path that extends in a substantially straight line along an axis of the housing from the powder inlet to the powder outlet. The powder path is in the form of an enclosed smooth powder passage that is substantially continuous and uninterrupted from the powder inlet to the powder outlet to eliminate substantially all recesses or gaps that could capture or trap powder. The powder passage is formed by a plurality of tubular segments that are aligned along the housing axis and abut end to end, that when assembled in the housing axially compress the segments together to substantially eliminate dead spots or recesses to form the continuous smooth powder path. A gun purge function is provided that allows a purge line to be installed on the gun assembly. A cartridge valve and conductor assembly is provided between the gun electrode in the nozzle and the output of the voltage multiplier.Type: GrantFiled: September 22, 2000Date of Patent: September 28, 2004Assignee: Nordson CorporationInventors: Alan J. Knobbe, Andrew M. Peddie, John B. Wolanin, John C. A. Traylor, Bryan J. Bowman, Paul F. Meyers, Daniel J. Thompson, Joseph G. Schroeder
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Patent number: 6766763Abstract: A powder coating control system comprising a plurality of gun controls associated with a like plurality of powder spray guns. Each of the gun controls stores a plurality of presets spray parameters. Each of the gun controls responds to part identification signals and part position signals to select in real time one of the stored presets of spray parameters and trigger its respective powder spray gun ON and OFF to apply a powder coating to the moving part in accordance with the selected set of spray parameters. The control system further permits a gun purge cycle to be programmed either before or after the powder coating process is executed. The control system automatically initializes and brings each of the gun controls to an operable state on-line with the system control.Type: GrantFiled: March 11, 2003Date of Patent: July 27, 2004Assignee: Nordson CorporationInventors: Gerald W. Crum, Eddie W. Dixson, Jr., Charles L. Gatian, III, Jeanne Marie Leidy, William Mark Rucki, Joseph G. Schroeder, Cynthia Skelton-Becker
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Patent number: 6758423Abstract: A system and method of storing and reading parameter data associated with an electrostatic spray gun power supply is provided. The method includes, for example, the steps of reading parameter data associated with a power supply for a particular spray gun from a database and storing the parameter data in a memory device associated with the spray gun. The parameter data may include the drive current parameter information, for example, and additionally, spray gun type identification information. The memory device is preferably integral with the spray gun or a cable connector that connects to the spray gun. The data or information can be in the form of analog or digital information. After reading the spray gun power supply parameter data, the spray gun controller appropriately operates and monitors the spray gun to ensure that the spray gun power supply is performing properly.Type: GrantFiled: July 10, 2000Date of Patent: July 6, 2004Assignee: Nordson CorporationInventors: Jeffrey A. Perkins, Charles L. Gatian, III, Thomas Trautzsch, James D. Powell, Kenneth Zalewski, Andrew M. Peddie, Joseph G. Schroeder
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Publication number: 20040016832Abstract: A spray gun includes a handle portion and an extension portion. A nozzle is connected with an outer end of the extension portion. An electrode assembly is disposed in the extension portion to establish an electrical field to electrostatically charge particles of coating material. A coating material flow control member and a purge air flow control member are disposed on the handle portion. Operation of either one of the two flow control members actuates a membrane switch assembly. Operation of the purge air flow control member directs the flow of air to the coating material passage in the extension portion to remove excess coating material from the passage and from the nozzle. Different size hand grips may be mounted on the handle portion of the spray gun to accommodate operators having hands of different sizes.Type: ApplicationFiled: July 14, 2003Publication date: January 29, 2004Inventors: Joseph G. Schroeder, Jeffery Dailidas
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Publication number: 20030177979Abstract: A powder coating control system comprising a plurality of gun controls associated with a like plurality of powder spray guns. Each of the gun controls stores a plurality of presets spray parameters. Each of the gun controls responds to part identification signals and part position signals to select in real time one of the stored presets of spray parameters and trigger its respective powder spray gun ON and OFF to apply a powder coating to the moving part in accordance with the selected set of spray parameters. The control system further permits a gun purge cycle to be programmed either before or after the powder coating process is executed. The control system automatically initializes and brings each of the gun controls to an operable state on-line with the system control.Type: ApplicationFiled: March 11, 2003Publication date: September 25, 2003Applicant: Nordson CorporationInventors: Gerald W. Crum, Eddie W. Dixson, Charles L. Gatian, Jeanne Marie Leidy, William Mark Rucki, Joseph G. Schroeder, Cynthia Skelton-Becker
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Patent number: 6622937Abstract: A spray gun includes a handle portion and an extension portion. A nozzle is connected with an outer end of the extension portion. An electrode assembly is disposed in the extension portion to establish an electrical field to electrostatically charge particles of coating material. A coating material flow control member and a purge air flow control member are disposed on the handle portion. Operation of either one of the two flow control members actuates a membrane switch assembly. Operation of the purge air flow control member directs the flow of air to the coating material passage in the extension portion to remove excess coating material from the passage and from the nozzle. Different size hand grips may be mounted on the handle portion of the spray gun to accommodate operators having hands of different sizes.Type: GrantFiled: February 28, 2002Date of Patent: September 23, 2003Assignee: Nordson CorporationInventors: Joseph G. Schroeder, Jeffery Dailidas
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Publication number: 20030116086Abstract: A central controller for a powder coating system has a single processor connected to a memory, a gun controller input/output device and gun control logic for controlling a characteristic of a spray gun. An air flow controller input/output device and air flow control logic for controlling a characteristic of a pump providing air flow may also be included. A process input/output device for electrically communicating with a process input or a process output may also be included. Part identification and tracking logic, gun triggering logic, gun movement logic, booth control logic, part profiling logic and system monitoring and logging logic may also be included.Type: ApplicationFiled: September 20, 2002Publication date: June 26, 2003Inventors: Joseph G. Schroeder, Vince Bednarz, Jeffrey Perkins, Stephen Nemethy
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Publication number: 20030080220Abstract: An electrostatic spray gun apparatus includes a spray gun housing and a nozzle attached to a spray end of the housing, and a powder path that extends in a substantially straight line along an axis of the housing from the powder inlet to the powder outlet. The powder path is in the form of an enclosed smooth powder passage that is substantially continuous and uninterrupted from the powder inlet to the powder outlet to eliminate substantially all recesses or gaps that could capture or trap powder. The powder passage is formed by a plurality of tubular segments that are aligned along the housing axis and abut end to end. that when assembled in the housing axially compress the segments together to substantially eliminate dead spots or recesses to form the continuous smooth powder path. A gun purge function is provided that allows a purge line to be installed on the gun assembly. A cartridge valve and conductor assembly is provided between the gun electrode in the nozzle and the output of the voltage multiplier.Type: ApplicationFiled: October 3, 2002Publication date: May 1, 2003Inventors: Brian D. Mather, Joseph G. Schroeder, Daniel J. Thompson
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Patent number: 6547884Abstract: A powder coating control system comprising a plurality of gun controls associated with a like plurality of powder spray guns. Each of the gun controls stores a plurality of presets spray parameters. Each of the gun controls responds to part identification signals and part position signals to select in real time one of the stored presets of spray parameters and trigger its respective powder spray gun ON and OFF to apply a powder coating to the moving part in accordance with the selected set of spray parameters. The control system further permits a gun purge cycle to be programmed either before or after the powder coating process is executed. The control system automatically initializes and brings each of the gun controls to an operable state on-line with the system control.Type: GrantFiled: September 21, 2000Date of Patent: April 15, 2003Assignee: Nordson CorporationInventors: Gerald W. Crum, Eddie W. Dixson, Jr., Charles L. Gatian, III, Jeanne Marie Leidy, William Mark Rucki, Joseph G. Schroeder, Cynthia Skelton-Becker
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Publication number: 20030038192Abstract: Powder overspray that is extracted from a spray booth is recovered back to a powder supply that is used to supply powder to the spray guns inside the spray booth. The powder overspray extracted from the booth is separated from the high flow air stream by and then discharged to a feed center. By recovering overspray powder in this fashion, the time required for a color change operation in the powder spray system is greatly reduced.Type: ApplicationFiled: May 17, 2002Publication date: February 27, 2003Inventors: Jeffrey R. Shutic, Larry R. Fenik, David Mancuso, Andrew M. Peddie, Erich W. Selic, Joseph G. Schroeder, Herman E. Turner
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Publication number: 20020100817Abstract: A spray gun includes a handle portion and an extension portion. A nozzle is connected with an outer end of the extension portion. An electrode assembly is disposed in the extension portion to establish an electrical field to electrostatically charge particles of coating material. A coating material flow control member and a purge air flow control member are disposed on the handle portion. Operation of either one of the two flow control members actuates a membrane switch assembly. Operation of the purge air flow control member directs the flow of air to the coating material passage in the extension portion to remove excess coating material from the passage and from the nozzle. Different size hand grips may be mounted on the handle portion of the spray gun to accommodate operators having hands of different sizes.Type: ApplicationFiled: February 28, 2002Publication date: August 1, 2002Inventors: Joseph G. Schroeder, Jeffery Dailidas
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Patent number: D462268Type: GrantFiled: September 28, 2001Date of Patent: September 3, 2002Assignee: Nordson CorporationInventors: Joseph G. Schroeder, Daniel J. Thompson
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Patent number: D462740Type: GrantFiled: October 31, 2001Date of Patent: September 10, 2002Assignee: Nordson CorporationInventors: Joseph G. Schroeder, Brian D. Mather, Daniel J. Thompson
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Patent number: D469847Type: GrantFiled: June 26, 2002Date of Patent: February 4, 2003Assignee: Nordson CorporationInventors: Joseph G. Schroeder, Brian D. Mather, Daniel J. Thompson
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Patent number: D568439Type: GrantFiled: May 9, 2007Date of Patent: May 6, 2008Assignee: Nordson CorporationInventors: Terrence M. Fulkerson, Michael R Sanner, Brian D Mather, Joseph G. Schroeder