Patents Assigned to Worcester Polytechnic Institute
  • Patent number: 10900186
    Abstract: The present disclosure provides devices and methods for cleaning up or burning spills of burnable materials in situ. In some embodiments, a system for burning a burnable material comprises a base having a first side configured for placement on a surface with a burnable material and a second side; and a plurality heat conducting members extending from the second side of the base.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: January 26, 2021
    Assignee: Worcester Polytechnic Institute
    Inventors: Kemal S. Arsava, Ali S. Rangwala, Glenn Mahnken
  • Patent number: 10888138
    Abstract: An impact absorbing footwear device employs opposed planar sole portions engaged by a selective resistance coupling that biases the opposed planar sole portions in a non-linear manner in response to forces exerted by the wearer against the sole portion in frictional contact with a floor surface. The planar sole portions are disposed in a footwear appliance that takes the form of an athletic shoe sole. The selective resistance coupling includes a plurality of resilient deformation members that engage the planar sole portions in an opposed circumferentially aligned manner, selectively deform in response to pressure exerted by the wearer for preventing ACL and other impact related injuries, and recover to an undeformed rest position without breakaway to allow the wearer uninterrupted usage while dampening forces that surpass an injury threshold from the resilient deformation that allows the planar sole portions to temporarily misalign.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: January 12, 2021
    Assignee: Worcester Polytechnic Institute
    Inventors: Christopher A. Brown, Nicholas Workman, Michael Doyle, Jessica Shelsky, Jessica K. Y. Cheu, Lorenzo M. Dube, James J. Muller, Pedro D. Oporto, Olivia G. Steen, Andrew R. Vickery
  • Patent number: 10859262
    Abstract: A toxic waste incinerator is capable of enhanced combustion of hazardous waste (oil contaminated sand, human waste, garbage, etc.) utilizing immersed non-combustible and thermally conductive objects for increasing heat feedback from the flames to the unburned fuel, while air inlets are used to optimize the air entrainment rate to enhance the burning efficiency. The burning rate of a fluidic mass such as a sand-oil mixture is enhanced using immersed conductive objects (copper rods) which enable rapid heat-up of the flame exposed to the upper surface of the rod and transmits heat back into the sand. Consequent conduction of heat to the porous media through the lower portion of the immersed rod significantly increases vaporization and therefore the burning rate. Incineration may be performed on a transient, exigent basis as with hazardous waste and oil spills, or as part of a permanent fixture for receiving an ongoing waste stream.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: December 8, 2020
    Assignee: Worcester Polytechnic Institute
    Inventors: Shivaprasad Arava, Kemal S. Arsava, Ali S. Rangwala, Hayri Sezer, Apoorv Walawalkar, Vasudevan Raghavan
  • Patent number: 10855564
    Abstract: A mixed reality device includes a mixed reality display and a controller disposed in electrical communication with the mixed reality display. The controller is configured to display a hierarchical data structure as a virtual object in a 3D space on the mixed reality display, the hierarchical data structure constructed from topology data associated with a network and three-dimensional (3D) embedded network data associated with the network; receive a hierarchy traversal command relative to at least one node of a first level of the hierarchical data structure; and, in response to receiving the hierarchy traversal command, display at least one node of the second level of the hierarchical data structure on the mixed reality display.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: December 1, 2020
    Assignee: Worcester Polytechnic Institute
    Inventors: Dmitry Korkin, Pavel Terentiev
  • Patent number: 10854003
    Abstract: Embodiments of the innovation relate to a mixed reality device having a mixed reality display and a controller disposed in electrical communication with the mixed reality display. The controller configured to receive topology data associated with a network and three-dimensional (3D) embedded network data associated with the network. The controller is configured to construct a hierarchical data structure from the topology data and the 3D embedded network data. The controller is also configured to display a level of the hierarchical data structure as a virtual object in a 3D space on the mixed reality display, the level of the hierarchical data structure identifying a subset of nodes and a subset of edges of the hierarchical data structure.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: December 1, 2020
    Assignee: Worcester Polytechnic Institute
    Inventors: Dmitry Korkin, Pavel Terentiev
  • Patent number: 10836649
    Abstract: A low-temperature leaching operation employs a raw, red mud slurry directly from aluminum production for an oxalic acid leaching of ferric oxalate. Residual calcium, titanium, aluminum and other rare earths are also recoverable in a secondary stream. Monitoring and control of the pH of the leach solution yields soluble ferric oxalate without high temperatures or specific radiation or light sources. Addition of iron powder results in precipitation of ferrous oxalate, isolated by magnetic separation from the iron powder which recirculates in the solution. Magnetite may then be produced by heating the ferrous oxalate in low pO2 conditions.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: November 17, 2020
    Assignee: Worcester Polytechnic Institute
    Inventors: Sumedh Gostu, Brajendra Mishra
  • Patent number: 10753878
    Abstract: A molten metal inclusion test apparatus includes a spectroscopic appliance for gathering data indicative of the contents of a quantity of molten metal. Laser induced emissions provide spectral data based on the elements present in the melt. Analysis of a series of samplings, or “shots” of laser induced emissions indicates a presence of elements above a background or expected level. These elements appear as spikes in a graphical rendering of the spectral data, defined by a wavelength of the detected element. Correlation of the elements detected in the same shot indicates a composition of the inclusion, typically a particle of an extraneous compound in the melt. Such spectral analysis provides immediate feedback about melt quality, allowing corrective measures to be taken prior to casting.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: August 25, 2020
    Assignee: Worcester Polytechnic Institute
    Inventors: Shaymus W. Hudson, Diran Apelian, Robert DeSaro, Joseph C. Craparo
  • Patent number: 10741890
    Abstract: Cathode material from exhausted lithium ion batteries are dissolved in a solution for extracting the useful elements Co (cobalt), Ni (nickel), Al (Aluminum) and Mn (manganese) to produce active cathode materials for new batteries. The solution includes compounds of valuable charge materials such as cobalt, nickel, aluminum and manganese dissolved as compounds from the exhausted cathode material of spent cells. However, LiFePO4 is a waste stream charge material often discarded due to infeasibility of recycling. LiFePO4 is precipitated as FePO4 and remains as a by-product, along with graphite and carbon, which are not dissolved into the solution. FePO4 can be separated from graphite and carbon, FePO4 can be used to synthesize LiFePO4 as cathode materials and graphite can be regenerated as anode materials.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: August 11, 2020
    Assignee: Worcester Polytechnic Institute
    Inventors: Yan Wang, Xiaotu Ma
  • Patent number: 10731145
    Abstract: Device, and methods of using or making the device, for engineering cells in vitro are disclosed. In some aspects, a cell culture device comprises at least one glass or polymer surface configured for incubating cells in a culture medium; a charged molecule electrostatically bound to the surface; and a polyelectrolyte multilayer (PEM) electrostatically bound to the charged molecule, the PEM comprising one or more bi-layers of oppositely charged polyelectrolytes, and the PEM having a sufficient thickness to permit release of the charged molecule into the culture medium in a controlled released manner.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: August 4, 2020
    Assignee: Worcester Polytechnic Institute
    Inventors: Amy Peterson, Marsha Rolle, Ivan Ding
  • Publication number: 20200163782
    Abstract: A system and method for transmission of a signal for a powered assistive device has a sensor node with a wireless transmitter adapted for digitally transmitting a transmitted signal, the sensor node adapted for receiving and monitoring a sensor signal from a sensor attached to a user, and a master node with a controller and a wireless receiver for receiving the transmitted signal from the wireless transmitter. The master node processes the transmitted signal and communicates a control signal to the powered assistive device. The wireless transmitter transmits the transmitted signal at a first rate when the wireless transmitter adapted to transmit the transmitted signal at a first rate when the sensor signal is indicative of the rest state and to transmit the transmitted signal at a second rate when the sensor signal is indicative of the active state, the second rate being greater than the first rate.
    Type: Application
    Filed: November 27, 2019
    Publication date: May 28, 2020
    Applicant: Worcester Polytechnic Institute
    Inventors: Benjamin Edward McDonald, Todd Richard Farrell, Edward Clancy, Jianan Li, Xinming Huang
  • Publication number: 20200160359
    Abstract: Embodiments of the innovation relate to a persona development device comprising a controller having a memory and a processor. The controller is configured to receive a research request from a user interaction device, the research request including an attribute related to a persona. The controller is configured to, in response to identifying a correspondence between the attribute of the research request and a persona of a persona database, forward a request response including the persona to the user interaction device. The controller is configured to, in response to identifying a lack of correspondence between the attribute of the research request and a persona of a persona database, retrieve user data from a user data source, create a persona prototype based upon the user data and corresponding to the attribute of the research request, and forward a request response including the persona prototype to the user interaction device.
    Type: Application
    Filed: November 21, 2019
    Publication date: May 21, 2020
    Applicant: Worcester Polytechnic Institute
    Inventors: Ryan M. LaMarche, Chris Chagnon, Soussan Djamasbi
  • Publication number: 20200159986
    Abstract: In a text simplification system, a method for replacing text in a field of view of a user, comprises receiving eye movement data from an eye-tracking device, the eye movement data relating to text provided in a field of view of a user and detecting a cognitive load associated with the eye movement and corresponding to a visual location of the field of view of the user. The method comprises, when the cognitive load meets a cognitive load threshold, identifying visualized text provided in the visual location of the field of view of the user and identifying personalization information associated with the user. The method comprises, when the personalization information meets a personalization information criterion, replacing the visualized text provided in the visual location of the field of view of the user with simplified text.
    Type: Application
    Filed: November 15, 2019
    Publication date: May 21, 2020
    Applicants: Worcester Polytechnic Institute, University of Massachusetts
    Inventors: Soussan Djamasbi, Ping Chen
  • Patent number: 10647617
    Abstract: An aqueous solution of carbonic anhydrase and calcium chloride is contacted with a cementitious surface defining at least one opening or fissure in the presence of ambient carbon dioxide to thereby cause the calcium chloride and carbon dioxide to react, whereby calcium carbonate precipitate from the solution and seals the opening or fissure.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: May 12, 2020
    Assignee: Worcester Polytechnic Institute
    Inventors: Nima Rahbar, Suzanne Frances Scarlata, Jessica Anne Rosewitz
  • Patent number: 10632626
    Abstract: The present disclosure provides a biologically-inspired robotic device comprising: a first member; a second member pivotably connected to the first member; one or more actuators; and a coupler/decoupler mechanism (CDC) selectively coupling or decoupling of the one or more actuators to the second member, such that, when the one or more actuators are coupled to the second member, the one or more actuators act to pivot the second member relative to the first member.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: April 28, 2020
    Assignee: Worcester Polytechnic Institute
    Inventors: Marko B. Popovic, Matthew Paul Bowers, Thane Robert Hunt, Lynn Robert Koesterman, Michael Pickett, Richard Matthew Rafferty, Saivimal Sridar, Seiichiro Ueda, Varun Visnudas Verlencar, Amaid Zia, Ananth Jonnavittula
  • Patent number: 10624622
    Abstract: A surgical appliance includes a pair of opposed prongs slideably disposed on an elongated locking track for retracting neurovascular and musculotendinous anatomical structures through an incision for affording access to deeper structures for inserting osteosynthesis hardware in the surgical treatment of a distal radius fracture or other surgical procedure. The prongs extend from retractors that traverse the locking track for opposed linear movement while recessed in a surgical working region accessible through an incision. The prongs terminate in curvatures defining a void that gather and engage the elongated anatomical structures on top of the skeletal members receiving the plate. The prongs draw back the tendons, blood vessels and nerve structures to allow unimpeded surgical access for manipulating and attaching skeletal and soft tissue members and/or appliances.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: April 21, 2020
    Assignees: Worcester Polytechnic Institute, University of Massachusetts
    Inventors: Jacquelyne DiTroia, Caroline Mazzola, Andres Monterroso, Patricia Swierk, Arriyan Samandar Dowlatshahi, Kristen Billiar, Raymond M. Dunn
  • Patent number: 10603005
    Abstract: In some embodiments, a method for determining a deformity in a bone surface comprises performing a scan of a healthy bone and a diseased bone; creating 3-dimensional (3D) representations of a current surface of the diseased bone; constructing an estimated healthy surface in 3D for the diseased bone based on the surface of the healthy bone; and identifying a deformity in the diseased bone by comparing the estimated healthy surface to the current surface of the diseased bone. In some embodiments, the scan is performed using high resolution peripheral quantitative computed tomography (HR-pQCT).
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: March 31, 2020
    Assignee: Worcester Polytechnic Institute
    Inventors: Travis F. Henchie, Karen L. Troy
  • Patent number: 10564041
    Abstract: A noncontact temperature sensing device receives radiative emissions from a sensed object to measure radiant heat flux and computes a temperature using multiple photodiode sensors, or elements, each sensitive to a different bandwidth of near IR light. The device samples a fluctuating heat source such as a flame or explosion at a fast sampling frequency, and compares corresponding or simultaneous readings in each bandwidth for computing a ratio of the respective bands and determining a temperature via ratio pyrometry. Multiple sensors of adjacent bands each receive corresponding readings of near IR emissions, perform fast, concurrent sampling to mitigate inconsistencies of heat source fluctuations, and compute a temperature based on a ratio between the sampled readings of the different bands. Near IR detection allows common and inexpensive photodiodes to be employed, and the photoelectric rather than thermoelectric sensing allows faster sampling and at a greater distance from the sensed heat source.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: February 18, 2020
    Assignee: Worcester Polytechnic Institute
    Inventor: Samim Safaei Boroojeny
  • Patent number: 10551923
    Abstract: A toroidal actuator is responsive to a teleoperator for providing haptic feedback responsive to a curvature or articulated movement applied to a gripped object. The toroidal actuator surrounds an operator member such as a finger, and is responsive to pneumatic pressure for increasing telepresence force defined by resistance encounter against a teleoperated robotic claw. As the teleoperated claw grips an object, increased pneumatic pressure in the toroidal actuator tends to elongate the toroidal shape in a linear manner and oppose a curvature force applied by an inserted operator finger. Resistive force is based on soft sensing of the gripped object, thus the toroidal actuator applies an increasing resistive force to curvature as the robotic claw closes around a gripped object by solenoid regulated air pressure. A typical assembly includes at least 3 toroidal actuators for two digits and a thumb of an operator.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: February 4, 2020
    Assignee: Worcester Polytechnic Institute
    Inventors: Saraj Pirasmepulkul, Alexander Caracappa, Peerapat Luxsuwong, Cagdas D. Onal, William Michalson, Tri Khuu, Ming Luo
  • Publication number: 20200029806
    Abstract: A visual tracking system, comprises an eye-tracking device and a cognitive load detection device disposed in electrical communication with the eye-tracking device, the cognitive load detection device comprising a controller having a memory and a processor. The controller is configured to receive eye-movement data from the eye-tracking device, the eye-movement data comprising pupil dilation event data and at least one of saccade event data and fixation event data, apply a classification function to the eye-movement data to detect a cognitive load associated with the eye-movement data and corresponding to a visual location of a field of view of the user, and output a notification regarding the cognitive load associated with the eye-movement data.
    Type: Application
    Filed: July 26, 2019
    Publication date: January 30, 2020
    Applicant: WORCESTER POLYTECHNIC INSTITUTE
    Inventors: Mina Shojaeizadeh, Soussan Djamasbi, Randy C. Paffenroth, Andrew C. Trapp
  • Patent number: 10547044
    Abstract: A dry electrode manufacturing process employed for low cost battery through a dry mixing and formation process. A thermal activation renders the dry fabricated electrode comparable to conventional slurry casted electrodes. The dry electrode mixture results from a combination of a plurality of types of constituent particles, including at least an active charge material and a binder, and typically a conductive material such as carbon. The process heats the deposited mixture to a moderate temperature for activating the binder for adhering the mixture to the substrate; and compresses the deposited mixture to a thickness for achieving an electrical sufficiency of the compressed, deposited mixture as a charge material in a battery.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: January 28, 2020
    Assignees: Worcester Polytechnic Institute, The Curators of the University of Missouri
    Inventors: Yan Wang, Zhangfeng Zheng, Brandon Ludwig, Heng Pan