Patents by Inventor Lee Harris Magnusson
Lee Harris Magnusson 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: 11491032Abstract: Artificial limbs and joints that behave like biological limbs and joints employ a synthetic actuator which consumes negligible power when exerting zero force, consumes negligible power when outputting force at constant length (isometric) and while performing dissipative, nonconservative work, is capable of independently engaging flexion and extension tendon-like, series springs, is capable of independently varying joint position and stiffness, and exploits series elasticity for mechanical power amplification.Type: GrantFiled: May 31, 2019Date of Patent: November 8, 2022Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Hugh M. Herr, Lee Harris Magnusson, Ken Endo
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Patent number: 11278433Abstract: A powered ankle-foot prosthesis, capable of providing human-like power at terminal stance that increase amputees metabolic walking economy compared to a conventional passive-elastic prosthesis. The powered prosthesis comprises a unidirectional spring, configured in parallel with a force-controllable actuator with series elasticity. The prosthesis is controlled to deliver the high mechanical power and net positive work observed in normal human walking.Type: GrantFiled: November 6, 2018Date of Patent: March 22, 2022Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Hugh M. Herr, Jeff A. Weber, Kwok Wai Samuel Au, Bruce Wayne Deffenbaugh, Lee Harris Magnusson, Andreas G. Hofmann, Benjamin B. Aisen
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Publication number: 20200022823Abstract: Artificial limbs and joints that behave like biological limbs and joints employ a synthetic actuator which consumes negligible power when exerting zero force, consumes negligible power when outputting force at constant length (isometric) and while performing dissipative, nonconservative work, is capable of independently engaging flexion and extension tendon-like, series springs, is capable of independently varying joint position and stiffness, and exploits series elasticity for mechanical power amplification.Type: ApplicationFiled: May 31, 2019Publication date: January 23, 2020Inventors: Hugh M. Herr, Lee Harris Magnusson, Ken Endo
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Publication number: 20190175365Abstract: A powered ankle-foot prosthesis, capable of providing human-like power at terminal stance that increase amputees metabolic walking economy compared to a conventional passive-elastic prosthesis. The powered prosthesis comprises a unidirectional spring, configured in parallel with a force-controllable actuator with series elasticity. The prosthesis is controlled to deliver the high mechanical power and net positive work observed in normal human walking.Type: ApplicationFiled: November 6, 2018Publication date: June 13, 2019Inventors: Hugh M. Herr, Jeff A. Weber, Kwok Wai Samuel Au, Bruce Wayne Deffenbaugh, Lee Harris Magnusson, Andreas G. Hofmann, Benjamin B. Aisen
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Patent number: 10137011Abstract: A powered ankle-foot prosthesis, capable of providing human-like power at terminal stance that increase amputees metabolic walking economy compared to a conventional passive-elastic prosthesis. The powered prosthesis comprises a unidirectional spring, configured in parallel with a force-controllable actuator with series elasticity. The prosthesis is controlled to deliver the high mechanical power and net positive work observed in normal human walking.Type: GrantFiled: August 19, 2013Date of Patent: November 27, 2018Assignee: Massachusetts Institute of TechnologyInventors: Hugh M. Herr, Jeff A. Weber, Kwok Wai Samuel Au, Bruce Wayne Deffenbaugh, Lee Harris Magnusson, Andreas G. Hofmann, Benjamin B. Aisen
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Patent number: 8870967Abstract: Artificial limbs and joints that behave like biological limbs and joints employ a synthetic actuator which consumes negligible power when exerting zero force, consumes negligible power when outputting force at constant length (isometric) and while performing dissipative, nonconservative work, is capable of independently engaging flexion and extension tendon-like, series springs, is capable of independently varying joint position and stiffness, and exploits series elasticity for mechanical power amplification.Type: GrantFiled: October 29, 2009Date of Patent: October 28, 2014Assignee: Massachusetts Institute of TechnologyInventors: Hugh M. Herr, Lee Harris Magnusson, Ken Endo
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Publication number: 20140088729Abstract: A powered ankle-foot prosthesis, capable of providing human-like power at terminal stance that increase amputees metabolic walking economy compared to a conventional passive-elastic prosthesis. The powered prosthesis comprises a unidirectional spring, configured in parallel with a force-controllable actuator with series elasticity. The prosthesis is controlled to deliver the high mechanical power and net positive work observed in normal human walking.Type: ApplicationFiled: August 19, 2013Publication date: March 27, 2014Applicant: Massachusetts Institute of TechnologyInventors: Hugh M. Herr, Jeff A. Weber, Kwok Wai Samuel Au, Bruce Wayne Deffenbaugh, Lee Harris Magnusson, Andreas G. Hofmann, Benjamin B. Aisen
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Patent number: 8512415Abstract: A powered ankle-foot prosthesis, capable of providing human-like power at terminal stance that increase amputees metabolic walking economy compared to a conventional passive-elastic prosthesis. The powered prosthesis comprises a unidirectional spring, configured in parallel with a force-controllable actuator with series elasticity. The prosthesis is controlled to deliver the high mechanical power and net positive work observed in normal human walking.Type: GrantFiled: June 12, 2008Date of Patent: August 20, 2013Assignee: Massachusetts Institute of TechnologyInventors: Hugh M. Herr, Jeff A. Weber, Samuel K. Au, Bruce Wayne Deffenbaugh, Lee Harris Magnusson, Andreas G. Hofmann, Benjamin B. Aisen
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Publication number: 20110257764Abstract: A powered ankle-foot prosthesis, capable of providing human-like power at terminal stance that increase amputees metabolic walking economy compared to a conventional passive-elastic prosthesis. The powered prosthesis comprises a unidirectional spring, configured in parallel with a force-controllable actuator with series elasticity. The prosthesis is controlled to deliver the high mechanical power and net positive work observed in normal human walking.Type: ApplicationFiled: June 12, 2008Publication date: October 20, 2011Applicant: Massachusetts Institute of TechnologyInventors: Hugh M. Herr, Jeff A. Weber, Samuel K. Au, Bruce Wayne Deffenbaugh, Lee Harris Magnusson, Andreas G. Hoffman, Benjamin B. Aisen
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Publication number: 20100241242Abstract: Artificial limbs and joints that behave like biological limbs and joints employ a synthetic actuator which consumes negligible power when exerting zero force, consumes negligible power when outputting force at constant length (isometric) and while performing dissipative, nonconservative work, is capable of independently engaging flexion and extension tendon-like, series springs, is capable of independently varying joint position and stiffness, and exploits series elasticity for mechanical power amplification.Type: ApplicationFiled: October 29, 2009Publication date: September 23, 2010Applicant: Massachusetts Institute of TechnologyInventors: Hugh M. Herr, Lee Harris Magnusson, Ken Endo