Patents by Inventor David Wendt
David Wendt 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: 10601281Abstract: A modular drive system for use with an industrial machine having a gear case includes a motor system. The motor system includes a motor housing and a motor shaft disposed in the motor housing. The motor system has a first, non-drive end and a second, drive end. The modular drive system also includes a brake system coupled to the second end of the motor system, and a drive gear coupled to the motor shaft, the drive gear disposed between the first end and the brake system.Type: GrantFiled: March 15, 2013Date of Patent: March 24, 2020Assignee: Joy Global Surface Mining Inc.Inventors: Nicholas R. Voelz, Joseph Colwell, David Wendt
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Patent number: 9765292Abstract: A bioreactor for preferably three-dimensional cell culturing comprises a scaffold chamber, a first tube, a second tube and a first valve with a scaffold adapter, a tube adapter and a medium adapter. The first valve has a housing with a longitudinal female portion ending in an opening and a longitudinal actuator being arranged through the opening of the female portion of the housing such that the actuator is arranged partially inside the housing and partially outside the housing, wherein the actuator of the first valve is axially moveable relative to the housing of the first valve between a first position in which the first valve is in the operation position and a second position in which the first valve is in the medium change position. By providing the actuators in the first valve which is applied by axial movements, operation of the bioreactor can be comparably simple and safe.Type: GrantFiled: June 4, 2013Date of Patent: September 19, 2017Assignees: University Hospital of Basel, Cellec Biotek AGInventors: Elia Piccinini, David Wendt, Adam Papadimitropoulos, Laura Spinelli, Stefania Adele Riboldi, Francesco Giovanni Greco, Peter Iwatschenko
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Publication number: 20150197719Abstract: A bioreactor for preferably three-dimensional cell culturing comprises a scaffold chamber, a first tube, a second tube and a first valve with a scaffold adapter, a tube adapter and a medium adapter. The first valve has a housing with a longitudinal female portion ending in an opening and a longitudinal actuator being arranged through the opening of the female portion of the housing such that the actuator is arranged partially inside the housing and partially outside the housing, wherein the actuator of the first valve is axially moveable relative to the housing of the first valve between a first position in which the first valve is in the operation position and a second position in which the first valve is in the medium change position. By providing the actuators in the first valve which is applied by axial movements, operation of the bioreactor can be comparably simple and safe. In particular, such arrangement allows for a comparably easy identification of the position of the first valve, i.e., e.g.Type: ApplicationFiled: June 4, 2013Publication date: July 16, 2015Inventors: Elia Piccinini, David Wendt, Adam Papadimitropoulos, Laura Spinelli, Stefania Adele Riboldi, Francesco Giovanni Greco, Peter Iwatschenko
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Patent number: 9074354Abstract: Systems, methods, devices, and computer readable media for controlling a digging operation of an industrial machine that includes a dipper and a crowd drive. A method includes determining an acceleration associated with the industrial machine, determining a crowd retract factor based on the acceleration, comparing the crowd retract factor to a threshold crowd retract factor, setting a crowd speed reference and a crowd retract torque for the crowd drive for a period of time based on the comparison of the crowd retract factor to the threshold crowd retract factor.Type: GrantFiled: September 2, 2014Date of Patent: July 7, 2015Assignee: Harnischfeger Technologies, Inc.Inventors: Joseph Colwell, William Hren, David Wendt, Michael Linstroth
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Patent number: 8935061Abstract: Controlling a digging operation of an industrial machine that includes a dipper, a crowd motor drive, and a controller. The crowd motor drive is configured to provide one or more control signals to a crowd motor, and the crowd motor is operable to provide a force to the dipper to move the dipper toward or away from a bank. The controller is connected to the crowd motor drive and is configured to monitor a characteristic of the industrial machine, identify an impact event associated with the dipper based on the monitored characteristic of the industrial machine, and set a crowd motoring torque limit for the crowd motor drive when the impact event is identified.Type: GrantFiled: December 31, 2013Date of Patent: January 13, 2015Assignee: Harnischfeger Technologies, Inc.Inventors: Joseph Colwell, William Hren, David Wendt, Michael Linstroth
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Publication number: 20140371996Abstract: Systems, methods, devices, and computer readable media for controlling a digging operation of an industrial machine that includes a dipper and a crowd drive. A method includes determining an acceleration associated with the industrial machine, determining a crowd retract factor based on the acceleration, comparing the crowd retract factor to a threshold crowd retract factor, setting a crowd speed reference and a crowd retract torque for the crowd drive for a period of time based on the comparison of the crowd retract factor to the threshold crowd retract factor.Type: ApplicationFiled: September 2, 2014Publication date: December 18, 2014Inventors: Joseph Colwell, William Hren, David Wendt, Michael Linstroth
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Patent number: 8825317Abstract: Systems, methods, devices, and computer readable media for controlling a digging operation of an industrial machine that includes a dipper and a crowd drive. A method includes determining an acceleration associated with the industrial machine, determining a crowd retract factor based on the acceleration, comparing the crowd retract factor to a threshold crowd retract factor, setting a crowd speed reference and a crowd retract torque for the crowd drive for a period of time based on the comparison of the crowd retract factor to the threshold crowd retract factor.Type: GrantFiled: October 28, 2013Date of Patent: September 2, 2014Assignee: Harnischfeger Technologies, Inc.Inventors: Joseph Colwell, William Hren, David Wendt, Michael Linstroth
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Publication number: 20140188351Abstract: Controlling a digging operation of an industrial machine that includes a dipper, a crowd motor drive, and a controller. The crowd motor drive is configured to provide one or more control signals to a crowd motor, and the crowd motor is operable to provide a force to the dipper to move the dipper toward or away from a bank. The controller is connected to the crowd motor drive and is configured to monitor a characteristic of the industrial machine, identify an impact event associated with the dipper based on the monitored characteristic of the industrial machine, and set a crowd motoring torque limit for the crowd motor drive when the impact event is identified.Type: ApplicationFiled: December 31, 2013Publication date: July 3, 2014Applicant: Harnischfeger Technologies, Inc.Inventors: Joseph Colwell, William Hren, David Wendt, Michael Linstroth
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Publication number: 20140129094Abstract: Systems, methods, devices, and computer readable media for controlling a digging operation of an industrial machine that includes a dipper and a crowd drive. A method includes determining an acceleration associated with the industrial machine, determining a crowd retract factor based on the acceleration, comparing the crowd retract factor to a threshold crowd retract factor, setting a crowd speed reference and a crowd retract torque for the crowd drive for a period of time based on the comparison of the crowd retract factor to the threshold crowd retract factor.Type: ApplicationFiled: October 28, 2013Publication date: May 8, 2014Applicant: Harnischfeger Technologies, Inc.Inventors: Joseph Colwell, William Hren, David Wendt, Michael Linstroth
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Patent number: 8620536Abstract: Controlling a digging operation of an industrial machine that includes a dipper, a crowd motor drive, and a controller. The crowd motor drive is configured to provide one or more control signals to a crowd motor, and the crowd motor is operable to provide a force to the dipper to move the dipper toward or away from a bank. The controller is connected to the crowd motor drive and is configured to monitor a characteristic of the industrial machine, identify an impact event associated with the dipper based on the monitored characteristic of the industrial machine, and set a crowd motoring torque limit for the crowd motor drive when the impact event is identified.Type: GrantFiled: March 14, 2013Date of Patent: December 31, 2013Assignee: Harnischfeger Technologies, Inc.Inventors: Joseph Colwell, William Hren, David Wendt, Michael Linstroth
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Patent number: 8571766Abstract: Systems, methods, devices, and computer readable media for controlling a digging operation of an industrial machine that includes a dipper and a crowd drive. A method includes determining an acceleration associated with the industrial machine, determining a crowd retract factor based on the acceleration, comparing the crowd retract factor to a threshold crowd retract factor, setting a crowd speed reference and a crowd retract torque for the crowd drive for a period of time based on the comparison of the crowd retract factor to the threshold crowd retract factor.Type: GrantFiled: January 15, 2013Date of Patent: October 29, 2013Assignee: Harnischfeger Technologies, Inc.Inventors: Joseph Colwell, William Hren, David Wendt, Michael Linstroth
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Patent number: 8546142Abstract: The invention is a reverse-flow method and system for the loading, proliferation and differentiation of cells into and throughout an implantable biocompatible three-dimensional scaffold.Type: GrantFiled: March 4, 2005Date of Patent: October 1, 2013Assignee: Millenium Biologix Technologies Inc.Inventors: Ivan Martin, David Wendt, Alessandra Braccini, Rodolfo Quatro, Marcel Jakob
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Publication number: 20130249336Abstract: A modular drive system for use with an industrial machine having a gear case includes a motor system. The motor system includes a motor housing and a motor shaft disposed in the motor housing. The motor system has a first, non-drive end and a second, drive end. The modular drive system also includes a brake system coupled to the second end of the motor system, and a drive gear coupled to the motor shaft, the drive gear disposed between the first end and the brake system.Type: ApplicationFiled: March 15, 2013Publication date: September 26, 2013Applicant: HARNISCHFEGER TECHNOLOGIES, INC.Inventors: Nicholas R. Voelz, Joseph Colwell, David Wendt
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Patent number: 8355847Abstract: Systems, methods, devices, and computer readable media for controlling a digging operation of an industrial machine that includes a dipper and a crowd drive. A method includes determining an acceleration associated with the industrial machine, determining a crowd retract factor based on the acceleration, comparing the crowd retract factor to a threshold crowd retract factor, setting a crowd speed reference and a crowd retract torque for the crowd drive for a period of time based on the comparison of the crowd retract factor to the threshold crowd retract factor.Type: GrantFiled: August 31, 2011Date of Patent: January 15, 2013Assignee: Harnischfeger Technologies, Inc.Inventors: Joseph Colwell, William Hren, David Wendt, Michael Linstroth
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Publication number: 20120277959Abstract: Systems, methods, devices, and computer readable media for controlling a digging operation of an industrial machine that includes a dipper and a crowd drive. A method includes determining an acceleration associated with the industrial machine, determining a crowd retract factor based on the acceleration, comparing the crowd retract factor to a threshold crowd retract factor, setting a crowd speed reference and a crowd retract torque for the crowd drive for a period of time based on the comparison of the crowd retract factor to the threshold crowd retract factor.Type: ApplicationFiled: August 31, 2011Publication date: November 1, 2012Inventors: Joseph Colwell, William Hren, David Wendt, Michael Linstroth
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Publication number: 20080318315Abstract: The invention is a reverse-flow method and system for the loading, proliferation and differentiation of cells into and throughout an implantable biocompatible three-dimensional scaffold.Type: ApplicationFiled: March 4, 2005Publication date: December 25, 2008Inventors: Ivan Martin, David Wendt, Alessandra Braccini, Rodolfo Quatro, Marcel Jakob
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Publication number: 20080103030Abstract: An exercise system includes a user input arrangement; a rotatable member that rotates in response to an input force applied by a user on the user input arrangement; a power sensing arrangement that senses power applied to the rotatable member due to the input force applied by the user; and a variable resistance arrangement interconnected with the power sensing arrangement and with the user input arrangement. The resistance arrangement applies resistance to rotation of the rotatable member, and is variable in response to the power sensing arrangement to vary the resistance applied to the rotatable member. The variable resistance arrangement may be a brake that interacts with the rotatable member to resist rotation of the rotatable member, and to thereby resist the input force applied by the user. The variable resistance arrangement includes a controller for controlling the brake in response to the power sensing arrangement.Type: ApplicationFiled: October 31, 2007Publication date: May 1, 2008Inventors: Edward Watson, David Wendt, Clint Kolda
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Publication number: 20060234840Abstract: An exercise system includes a user input arrangement; a rotatable member that rotates in response to an input force applied by a user on the user input arrangement; a power sensing arrangement that senses power applied to the rotatable member due to the input force applied by the user; and a variable resistance arrangement interconnected with the power sensing arrangement and with the user input arrangement. The resistance arrangement applies resistance to rotation of the rotatable member, and is variable in response to the power sensing arrangement to vary the resistance applied to the rotatable member. The variable resistance arrangement may be a brake that interacts with the rotatable member to resist rotation of the rotatable member, and to thereby resist the input force applied by the user. The variable resistance arrangement includes a controller for controlling the brake in response to the power sensing arrangement.Type: ApplicationFiled: March 23, 2006Publication date: October 19, 2006Inventors: Edward Watson, David Wendt, Clint Kolda
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Patent number: 6993713Abstract: The present invention is a method, system, and computer program product for editing dynamic web content. In accordance with the present invention, dynamic web content, such as JSP files, can be edited using the concept of workspaces. This allows a dynamic content file to be edited without affecting its associated web site during the editing process. A dynamic content file, such as JSP file, is edited or updated within a workspace, while the original dynamic content file remains available to users outside of the workspace.Type: GrantFiled: June 6, 2002Date of Patent: January 31, 2006Assignee: International Business Machines CorporationInventor: David Wendt
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Patent number: 6985601Abstract: A hidden watermark and methods of detecting and embedding such watermark is provided. The watermark is resistant to efforts to avoid the message thereof.Type: GrantFiled: July 13, 2004Date of Patent: January 10, 2006Assignees: Sony Corporation, Sony Electronics Inc.Inventor: Peter David Wendt