Patents by Inventor Thomas C. Schroeder
Thomas C. 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: 11914401Abstract: A system for precision liquid delivery includes a gas reservoir having a known volume. The system has a tightly load-coupled pneumatic driver (a “TLCP driver”) that is configured to receive input power to cause the TLCP driver to move gas into the gas reservoir to produce a gas drive pressure. A valve is configured to couple the gas reservoir with a fluid reservoir having an unknown volume. The valve is further configured to selectively isolate or pneumatically couple pressures in the gas reservoir and the fluid reservoir. A gas-fluid interface couples pressure in the fluid reservoir to pressure in a fluid path. The fluid path is configured so that the fluid drive pressure driving the liquid in the fluid path is substantially the same as the fluid reservoir pressure. The system also has a pressure sensor configured to detect pressure in the gas reservoir and/or the fluid reservoir.Type: GrantFiled: December 13, 2022Date of Patent: February 27, 2024Assignee: Pneuma Systems CorporationInventors: Jeffrey A. Carlisle, Timothy S. Schroeder, Thomas C. Plummer
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Patent number: 11353084Abstract: An active vibration isolation system for isolating a suspended platform from vibration input to the vibration isolation system base includes an exoskeleton, a rotary actuator, and a drive mechanism separate from the exoskeleton for providing force output from the rotary actuator to the suspended plant. The rotary actuator may include inner and outer rotors which rotate relative to each other. The rotary actuator may be free to translate relative to the vibration isolation system base and the suspended platform, and both the inner and outer rotors may be free to rotate relative to the exoskeleton.Type: GrantFiled: March 15, 2013Date of Patent: June 7, 2022Assignee: ClearMotion Acquisition I LLCInventors: Thomas C. Schroeder, Robert Preston Parker, Dariusz Antoni Bushko, Brian A. Selden, Mark A. Hayner, Brian M. Lucas
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Patent number: 9291300Abstract: An active vibration isolation system for isolating a suspended platform from vibration input to the vibration isolation system base includes an exoskeleton which supports the suspended platform relative to the base. The exoskeleton includes first and second scissors mechanisms with main links of unequal length. The main links pass through a parallel condition as the suspended platform moves over its intended range of travel relative to the base. The vibration isolation system may include a rotary actuator and a drive mechanism separate from the exoskeleton for providing force output from the rotary actuator to the suspended platform. The rotary actuator may include inner and outer rotors which rotate relative to each other and may be free to rotate relative to the exoskeleton. The rotary actuator may be free to translate relative to the vibration isolation system base and the suspended platform.Type: GrantFiled: March 15, 2013Date of Patent: March 22, 2016Assignee: Bose CorporationInventors: Robert Preston Parker, Thomas C. Schroeder, Dariusz Antoni Bushko, Brian A. Selden, Mark A. Hayner, Brian M. Lucas
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Publication number: 20140263911Abstract: An active vibration isolation system for isolating a suspended platform from vibration input to the vibration isolation system base includes an exoskeleton which supports the suspended platform relative to the base. The exoskeleton includes first and second scissors mechanisms with main links of unequal length. The main links pass through a parallel condition as the suspended platform moves over its intended range of travel relative to the base. The vibration isolation system may include a rotary actuator and a drive mechanism separate from the exoskeleton for providing force output from the rotary actuator to the suspended platform. The rotary actuator may include inner and outer rotors which rotate relative to each other and may be free to rotate relative to the exoskeleton. The rotary actuator may be free to translate relative to the vibration isolation system base and the suspended platform.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Inventors: Robert Preston Parker, Thomas C. Schroeder, Dariusz Antoni Bushko, Brian A. Selden, Mark A. Hayner, Brian M. Lucas
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Publication number: 20140263932Abstract: An active vibration isolation system for isolating a suspended platform from vibration input to the vibration isolation system base includes an exoskeleton, a rotary actuator, and a drive mechanism separate from the exoskeleton for providing force output from the rotary actuator to the suspended plant. The rotary actuator may include inner and outer rotors which rotate relative to each other. The rotary actuator may be free to translate relative to the vibration isolation system base and the suspended platform, and both the inner and outer rotors may be free to rotate relative to the exoskeleton.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Inventors: Thomas C. Schroeder, Robert Preston Parker, Dariusz Antoni Bushko, Brian A. Selden, Mark A. Hayner, Brian M. Lucas
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Patent number: 8295536Abstract: A loudspeaker including a moving magnet motor. The moving magnet motor includes an armature comprising a magnet carrier, and a lever arm, coupling the armature and a pivot. The lever arm further couples the armature and an acoustic diaphragm to transmit motion of the armature to the acoustic diaphragm to cause the acoustic diaphragm to move. The loudspeaker described may be torque balance and moment balanced.Type: GrantFiled: March 31, 2010Date of Patent: October 23, 2012Assignee: Bose CorporationInventors: Richard Tucker Carlmark, Geoffrey C. Chick, Brian M. Lucas, Thomas C. Schroeder, Joseph A. Stabile
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Patent number: 8295537Abstract: A loudspeaker including a moving magnet motor. The moving magnet motor includes an armature comprising a magnet carrier, and a lever arm, coupling the armature and a pivot. The lever arm further couples the armature and an acoustic diaphragm to transmit motion of the armature to the acoustic diaphragm to cause the acoustic diaphragm to move. The loudspeaker described may be torque balance and moment balanced.Type: GrantFiled: March 31, 2010Date of Patent: October 23, 2012Assignee: Bose CorporationInventors: Richard Tucker Carlmark, Geoffrey C. Chick, Brian M. Lucas, Thomas C. Schroeder, Joseph A. Stabile
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Publication number: 20110243365Abstract: A loudspeaker including a moving magnet motor. The moving magnet motor includes an armature comprising a magnet carrier, and a lever arm, coupling the armature and a pivot. The lever arm further couples the armature and an acoustic diaphragm to transmit motion of the armature to the acoustic diaphragm to cause the acoustic diaphragm to move. The loudspeaker described may be torque balance and moment balanced.Type: ApplicationFiled: March 31, 2010Publication date: October 6, 2011Inventors: Richard Tucker Carlmark, Geoffrey C. Chick, Brian M. Lucas, Thomas C. Schroeder, Joseph A. Stabile
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Publication number: 20110243366Abstract: A loudspeaker including a moving magnet motor. The moving magnet motor includes an armature comprising a magnet carrier, and a lever arm, coupling the armature and a pivot. The lever arm further couples the armature and an acoustic diaphragm to transmit motion of the armature to the acoustic diaphragm to cause the acoustic diaphragm to move. The loudspeaker described may be torque balance and moment balanced.Type: ApplicationFiled: March 31, 2010Publication date: October 6, 2011Inventors: Richard Tucker Carlmark, Geoffrey C. Chick, Brian M. Lucas, Thomas C. Schroeder, Joseph A. Stabile
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Patent number: 7983813Abstract: A method for actively suspending a real plant in a vehicle includes modifying a control signal on the basis of a difference between a property of the real plant, as indicated by the response of the real plant to the control signal, and a property of a nominal plant.Type: GrantFiled: October 29, 2004Date of Patent: July 19, 2011Assignee: Bose CorporationInventors: Upendra V. Ummethala, James A. Parison, Thomas C. Schroeder, Daniel Francis Opila, Linda Ystueta, Roman Litovsky
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Publication number: 20100320357Abstract: An apparatus has an active suspension including an electromagnetic actuator coupled to a plant in a vehicle. A force bias eliminator is coupled to the plant for causing the actuator to experience a zero-mean load, and a vibration isolation block generates a control signal based on the response of a nominal plant to measured disturbances of the actively suspended plant. A compensation system modifies the control signal in response to a difference between the response of the nominal plant to the control signal and a measured response of the actively-suspended plant to the control signal.Type: ApplicationFiled: September 2, 2010Publication date: December 23, 2010Inventors: Upendra V. Ummethala, James A. Parison, Thomas C. Schroeder, Daniel Francis Opila, Linda Ystueta, Roman Litovsky
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Patent number: 7252053Abstract: An electromagnetic actuator includes a stator assembly mounted to a center pole formed of material having high magnetic permeability and functions as a return path for the magnetic field generated when current is passed through coils in the stator assembly. When current is applied to one or more coils within the stator assembly, a magnetic field is generated that interacts with a magnetic field generated by one or more magnets disposed within the armature assembly and causes the armature to move relative to the center pole thus, for example, opening or closing a valve.Type: GrantFiled: May 19, 2006Date of Patent: August 7, 2007Assignee: Bose CorporationInventors: Thomas A. Froeschle, Roger Mark, Thomas C. Schroeder, Richard Tucker Carlmark, David E. Hanson, Jun Ma, Benjamin G. K. Peterson
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Patent number: 7128032Abstract: An electromagnetic actuator includes a stator assembly mounted to a center pole formed of material having high magnetic permeability and functions as a return path for the magnetic field generated when current is passed through coils in the stator assembly. When current is applied to one or more coils within the stator assembly, a magnetic field is generated that interacts with a magnetic field generated by one or more magnets disposed within the armature assembly and causes the armature to move relative to the center pole thus, for example, opening or closing a valve.Type: GrantFiled: March 26, 2004Date of Patent: October 31, 2006Assignee: Bose CorporationInventors: Thomas A. Froeschle, Roger Mark, Thomas C. Schroeder, Richard Tucker Carlmark, David E. Hanson, Jun Ma, Benjamin G. K. Peterson
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Patent number: 5917923Abstract: A loudspeaker system includes an upper frequency assembly that radiates acoustical energy having spectral components in the audio frequency range above a predetermined upper frequency, typically at the high end of the bass frequency range between 150 and 200 Hz. The assembly includes a ported enclosure with a front face enclosing a loudspeaker driver with a cone adjacent to the front face of diameter slightly less than at least one of the height and width of the enclosure.Type: GrantFiled: October 19, 1995Date of Patent: June 29, 1999Assignee: Bose CorporationInventors: Gerald F. Caron, Rakesh C. Pandey, Ricardo F. Carreras, Osman K. Isvan, Dorie A. Sabol, Charles Ralph Barker, III, Thomas C. Schroeder
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Patent number: D429235Type: GrantFiled: May 17, 1995Date of Patent: August 8, 2000Assignee: Bose CorporationInventors: Louis F. Genatossio, Thomas C. Schroeder