Patents by Inventor Constantinos Mavroidis
Constantinos Mavroidis 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).
-
Publication number: 20200023533Abstract: A razor blade substrate having a substrate that includes a blade edge portion having a profiled geometry which is covered by a strengthening coating deposited on the razor blade substrate at least at the blade edge portion. The strengthening coating covering the blade edge tip, having a profiled geometry and having a tapering geometry with two coating sides converge toward a blade edge tip. The strengthening coating includes a strengthening layer made of a titanium- and boron-containing material.Type: ApplicationFiled: September 10, 2019Publication date: January 23, 2020Inventors: Stergios Logothetidis, Nikolaos Kalfagiannis, Constantinos Mavroidis, Vassilis Papachristos, Michallis Karoussis
-
Patent number: 10442098Abstract: A razor blade substrate having a substrate that includes a blade edge portion having a profiled geometry which is covered by a strengthening coating deposited on the razor blade substrate at least at the blade edge portion. The strengthening coating covering the blade edge tip, having a profiled geometry and having a tapering geometry with two coating sides converge toward a blade edge tip. The strengthening coating includes a strengthening layer made of a titanium- and boron-containing material.Type: GrantFiled: July 30, 2015Date of Patent: October 15, 2019Assignee: BIC VIOLEX SAInventors: Stergios Logothetidis, Nikolaos Kalfagiannis, Constantinos Mavroidis, Vassilis Papachristos, Michallis Karoussis
-
Patent number: 10383784Abstract: Systems, methods and components of a joint actuating gait training system are provided. The gait training system includes a base support frame and an upper flexion actuation assembly movably coupled to the base support frame and a lower flexion actuation assembly movably coupled to the base support frame.Type: GrantFiled: July 29, 2014Date of Patent: August 20, 2019Assignee: Northeastern UniversityInventors: Patrick Murphy, Michelle Cleary, Shawn Gelsinger, Melanie Jessel, Steven McKanas, Robert Struble, Maciej Pietrusinski, Sheng-Che Yen, Qingchao Kong, Constantinos Mavroidis
-
Patent number: 10250101Abstract: A balanced planetary gearbox including an assembly having an input stage and an output stage. The assembly includes two grounds, each with ground rollers and ground rings. The two grounds are fixedly attached to one another. The assembly includes a sun gear and planet sub-assemblies between the two grounds. The planet sub-assemblies include at least one input planet gear and one output planet gear. The sun gear and the input planet gears include rollers. An abutment of rollers in the gearbox keeps the sun gear and the planet gears in alignment. The output gear meshes with an output ring disposed in between the two ground rings, such that a combination of the at least one input planet gears from each of the plurality of planet sub-assemblies provides a structural symmetry to the planetary gearbox.Type: GrantFiled: June 8, 2015Date of Patent: April 2, 2019Assignee: Northeastern UniversityInventors: Elias Brassitos, Brian Weinberg, Qingchao Kong, Constantinos Mavroidis
-
Patent number: 10174810Abstract: In some embodiments, systems and methods are described for a gear contact system configured to support radial, thrust, and moment loads, the system comprising a first gear comprising a first roller having a first roller bearing surface, the first roller bearing surface having a convex curvature defined by a first radius of curvature; and a second gear comprising a second roller having a second roller bearing surface, the second roller bearing surface having a concave curvature defined by a second radius of curvature.Type: GrantFiled: March 24, 2014Date of Patent: January 8, 2019Assignee: Northeastern UniversityInventors: Elias Brassitos, Brian Weinberg, Qingchao Kong, Constantinos Mavroidis
-
Publication number: 20180215056Abstract: A razor blade substrate having a substrate that includes a blade edge portion having a profiled geometry which is covered by a strengthening coating deposited on the razor blade substrate at least at the blade edge portion. The strengthening coating covering the blade edge tip, having a profiled geometry and having a tapering geometry with two coating sides converge toward a blade edge tip. The strengthening coating includes a strengthening layer made of a titanium- and boron-containing material.Type: ApplicationFiled: July 30, 2015Publication date: August 2, 2018Inventors: Stergios Logothetidis, Nikolaos Kalfagiannis, Constantinos Mavroidis, Vassilis Papachristos
-
Publication number: 20170201154Abstract: A balanced planetary gearbox including an assembly having an input stage and an output stage. The assembly includes two grounds, each with ground rollers and ground rings. The two grounds are fixedly attached to one another. The assembly includes a sun gear and planet sub-assemblies between the two grounds. The planet sub-assemblies include at least one input planet gear and one output planet gear. The sun gear and the input planet gears include rollers. An abutment of rollers in the gearbox keeps the sun gear and the planet gears in alignment. The output gear meshes with an output ring disposed in between the two ground rings, such that a combination of the at least one input planet gears from each of the plurality of planet sub-assemblies provides a structural symmetry to the planetary gearbox.Type: ApplicationFiled: June 8, 2015Publication date: July 13, 2017Inventors: Elias BRASSITOS, Brian WEINBERG, Qingchao KONG, Constantinos MAVROIDIS
-
Publication number: 20160290490Abstract: The present disclosure provides a gear set. The gear set includes a ring gear including a plurality of ring gear teeth on an inner radial edge of the ring gear and an arcuate ring roller positioned axially outward of the ring gear teeth. The gear set includes a sun gear having a plurality of sun gear teeth positioned about an outer radial sun gear edge and an arcuate sun gear roller positioned axially outward of the sun gear teeth. The gear set includes a planetary gear positioned in the ring gear between the sun gear and the ring gear. The planetary gear includes a plurality of planetary gear teeth positioned about an outer radial planetary gear edge. The plurality of planetary gear teeth engage the sun gear teeth and the ring gear teeth. The planetary gear includes an arcuate planetary gear roller positioned axially outward of the planetary gear teeth. The arcuate planetary gear roller engages the arcuate ring roller and the arcuate sun gear roller.Type: ApplicationFiled: December 8, 2014Publication date: October 6, 2016Inventors: Elias Brassitos, Constantinos Mavroidis, Quingchao Kong
-
Patent number: 9403056Abstract: A rehabilitation system that combines robotics and interactive gaming to facilitate performance of task-specific, repetitive, upper extremity/hand motor tasks, to enable individuals undergoing rehabilitation to improve the performance of coordinated movements of the forearm and hand is disclosed. More specifically, the rehabilitation system includes a two degree-of-freedom (DOF) robotic, upper limb rehabilitation system and interactive gaming hardware that is coupled to a computer, to provide a virtual reality-like environment.Type: GrantFiled: March 22, 2010Date of Patent: August 2, 2016Assignees: Northeastern University, Spaulding Rehabilitation Hospital CorporationInventors: Brian Weinberg, Paolo Bonato, Ozer Unluhisarcikli, Mark Sivak, Constantinos Mavroidis, Anat Mirelman, Lucas Daniel Johnson, Nicholas J. Pappas, Kyle Thomas Hackmeister, Daniel T. Lau
-
Publication number: 20160187166Abstract: A method of constructing a sensor includes depositing a first material in a predetermined arrangement to form a structure. The depositing results in at least one void occurring within the structure. The method further includes depositing a second material within the voids. The second material may have electrical properties that vary according to deformation of the second material. The method also includes providing electrical access to the second material to enable observation of the one or more electrical properties. A sensor includes a structure that has one or more voids distributed within the structure. The sensor also includes a material deposited within the one or more voids. The material may be characterized by one or more electrical properties such as piezoresistivity. The sensor includes a first contact electrically coupled to a first location on the material, and a second contact electrically coupled to a second location on the material.Type: ApplicationFiled: December 22, 2015Publication date: June 30, 2016Inventors: Richard RANKY, Constantinos MAVROIDIS
-
Publication number: 20160166460Abstract: The present disclosure provides systems, methods and components of a joint actuating gait training system. The gait training system includes a base support frame and an upper flexion actuation assembly movably coupled to the base support frame and a lower flexion actuation assembly movably coupled to the base support frame.Type: ApplicationFiled: July 29, 2014Publication date: June 16, 2016Applicant: Northeastern UniversityInventors: Patrick Murphy, Michelle Cleary, Shawn Gelsinger, Melanie Jessel, Steven McKanas, Robert Struble, Maciej Pietrusinski, Sheng-Che Yen, Qingchao Kong, Constantinos Mavroidis
-
Publication number: 20160151176Abstract: The Active Knee Rehabilitation Orthotic System (ANdROS) is a wearable and portable assistive tool for gait rehabilitation and monitoring of people with motor control deficits due to a neurological ailment, such as stroke. ANdROS reinforces a desired gait pattern by continually applying a corrective torque around the knee joint, commanded by a impedance controller. A sensorized yet unactuated brace worn on the unimpaired leg is used to synchronize the playback of the desired trajectory based on the user's intent. The device is mechanically grounded through two ankle foot orthoses (AFOs) rigidly attached to the main structure, which helps reduce the weight perceived by the user.Type: ApplicationFiled: October 26, 2015Publication date: June 2, 2016Inventors: Ozer UNLUHISARCIKLI, Constantinos MAVROIDIS, Paolo BONATO, Maciej PIETRUSISNKI, Brian WEINBERG
-
Publication number: 20160144915Abstract: The present application is directed towards methods and systems for an interactive cyclist monitoring and crash prevention system. The methods include creating, by a safety sensor, a virtual smart lane around a bike operated by a rider during a cycling session. The virtual smart lane may indicates a safe zone around the bike. The method further includes the safety sensor detecting an object approaching the virtual smart lane during the cycling session and generating an alert to the rider of the bike to notify the rider of the approaching object.Type: ApplicationFiled: February 6, 2014Publication date: May 26, 2016Inventors: Amir Bahador Farjadian Bejestan, Qingchao Kong, Carlo Sartori Pacifici, Philip Damian Lena, Alexander Pepjonovich, Camilo Madriz, Marietta Alcover Ramos, Constantinos Mavroidis
-
Publication number: 20160053858Abstract: In some embodiments, systems and methods are described for a gear contact system configured to support radial, thrust, and moment loads, the system comprising a first gear comprising a first roller having a first roller bearing surface, the first roller bearing surface having a convex curvature defined by a first radius of curvature; and a second gear comprising a second roller having a second roller bearing surface, the second roller bearing surface having a concave curvature defined by a second radius of curvature.Type: ApplicationFiled: March 24, 2014Publication date: February 25, 2016Inventors: Elias BRASSITOS, Brian WEINBERG, Qingchao KONG, Constantinos MAVROIDIS
-
Patent number: 9228859Abstract: A method of constructing a sensor includes depositing a first material in a predetermined arrangement to form a structure. The depositing results in at least one void occurring within the structure. The method further includes depositing a second material within the voids. The second material may have electrical properties that vary according to deformation of the second material. The method also includes providing electrical access to the second material to enable observation of the one or more electrical properties. A sensor includes a structure that has one or more voids distributed within the structure. The sensor also includes a material deposited within the one or more voids. The material may be characterized by one or more electrical properties such as piezoresistivity. The sensor includes a first contact electrically coupled to a first location on the material, and a second contact electrically coupled to a second location on the material.Type: GrantFiled: September 26, 2012Date of Patent: January 5, 2016Assignee: Northeastern UniversityInventors: Richard Ranky, Constantinos Mavroidis
-
Publication number: 20150367176Abstract: The present application is directed towards methods and systems for an add-on smart pedal and computer based application to provide cyclist monitoring and recommendations. The methods include displaying, by a virtual coach, characteristics of a bike in a first virtual cycling session, the characteristics measured by a pedal sensor during a cycling session. The virtual coach may assess a performance of a rider during the cycling session and generate recommendations the first virtual cycling session based on the performance of the rider. Further, the virtual coach may create a second virtual cycling session based on the rider performance and the recommendations.Type: ApplicationFiled: February 6, 2014Publication date: December 24, 2015Inventors: Amir Bahador Farjadian Bejestan, Constantinos Mavroidis, Qingchao Kong
-
Patent number: 9198821Abstract: The Active Knee Rehabilitation Orthotic System (ANdROS) is a wearable and portable assistive tool for gait rehabilitation and monitoring of people with motor control deficits due to a neurological ailment, such as stroke. ANdROS reinforces a desired gait pattern by continually applying a corrective torque around the knee joint, commanded by a impedance controller. A sensorized yet unactuated brace worn on the unimpaired leg is used to synchronize the playback of the desired trajectory based on the user's intent. The device is mechanically grounded through two ankle foot orthoses (AFOs) rigidly attached to the main structure, which helps reduce the weight perceived by the user.Type: GrantFiled: September 28, 2012Date of Patent: December 1, 2015Assignees: NORTHEASTERN UNIVERSITY, SPAULDING REHABILITATION HOSPITAL CORPORATIONInventors: Ozer Unluhisarcikli, Constantinos Mavroidis, Paolo Bonato, Maciej Pietrusisnki, Brian Weinberg
-
Publication number: 20150328497Abstract: According to an aspect of the invention, a robotic ankle and balance training platform comprises a footplate to support a foot. The footplate is capable of rotation about an inversion/eversion axis and a plantar/dorsiflexion axis. The robotic platform further comprises an actuation system configured to apply an assistive inversion/eversion force and a resistive inversion/eversion force to the footplate and an assistive plantar/dorsiflexion force and a resistive plantar/dorsiflexion force to the footplate.Type: ApplicationFiled: November 28, 2013Publication date: November 19, 2015Applicant: Northeastern UniversityInventors: Paul R. DOUCOT, Alexander MAZZOTTA, Alexandra BUGLIARI, Nathaniel LAVINS, Amir Bahador Farjadian BEJESTAN, Maureen HOLDEN, Constantinos MAVROIDIS, Jan VALENZUELA
-
Multiple Degree of Freedom Portable Rehabilitation System Having DC Motor-Based, Multi-Mode Actuator
Publication number: 20150290071Abstract: The Navigator is multiple degree of freedom neuro rehabilitation system. The Navigator simultaneously exercises both pronation and supination of the wrist (rotation) and flexion and extension of the fingers (grasp and release) for rehabilitation and monitoring of patients with motor control deficits due to a neurological ailment, such as stroke. In addition, the Navigator provides a visual, interactive environment for performing therapeutic exercises. The interactive environment provides motivation to the patient and can provide real-time feedback to the patient about the quality of the movements being performed.Type: ApplicationFiled: December 2, 2013Publication date: October 15, 2015Inventors: Patrick Joseph Murphy, Ray Adler, Katherine Bausemer, Joseph Gonsalves, Kevin Thompson, Qingchao Kong, Mark L. Sivak, Constantinos Mavroidis -
Publication number: 20150077215Abstract: A method of constructing an object includes depositing a first material in a predetermined arrangement to form a structure. The method further includes depositing a second material within the structure. The second material may have electrical properties and the method also includes providing electrical access to the second material to enable observation of the one or more electrical properties.Type: ApplicationFiled: April 26, 2013Publication date: March 19, 2015Inventors: Richard Ranky, Alexandra Carver, Constantinos Mavroidis, Daniel Landers, Mark L. Sivak