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公开(公告)号：US12074302B2
公开(公告)日：2024-08-27
申请号：US17841152
申请日：2022-06-15
Applicant: Worcester Polytechnic Institute
Inventor： Yan Wang , Eric Gratz , Qina Sa , Zhangfeng Zheng , Joseph Heelan , Kee-Chan Kim
CPC classification number: H01M10/54 , C22B1/24 , C22B7/007 , C22B23/0423 , C22B23/043 , C22B23/0438 , C22B26/22
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 desirable materials such as cobalt, nickel, aluminum and manganese dissolved as compounds from the exhausted cathode material of spent cells. Depending on a desired proportion, or ratio, of the desired materials, raw materials are added to the solution to achieve the desired ratio of the commingled compounds for the recycled cathode material for new cells. The desired materials precipitate out of solution without extensive heating or separation of the desired materials into individual compounds or elements. The resulting active cathode material has the predetermined ratio for use in new cells, and avoids high heat typically required to separate the useful elements because the desired materials remain commingled in solution.
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公开(公告)号：US20240258596A1
公开(公告)日：2024-08-01
申请号：US18427320
申请日：2024-01-30
Applicant: Worcester Polytechnic Institute
CPC classification number: H01M10/54 , C01B32/21 , C22B1/16 , C22B7/007 , H01M4/583 , C01P2002/72 , C01P2002/82 , C01P2004/03 , C01P2006/40 , H01M2004/027
Abstract: A purification process for recycled graphite for use as anode material in Li-ion batteries includes a sequence of leaching and heat treatment followed by washing with deionized (DI) water and an acid wash. A graphite source results from a suitable process such as acid leaching of black mass from a battery recycling stream, where the leach removes a substantial portion of metal salts used for cathode materials. Impurities, most notably aluminum oxide and residual cathode materials, are often present in trace amounts in the graphite source. A sequence of heating (sintering) and pH adjusted washing further purifies the graphite into a modified, recycled graphite exceeding 99.5% purity for use in a recycled battery.
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公开(公告)号：US12049409B2
公开(公告)日：2024-07-30
申请号：US17547557
申请日：2021-12-10
Applicant: Worcester Polytechnic Institute
Inventor： Himanshu Tanvar , Brajendra Mishra
IPC: C01F7/0653 , C01F7/066
CPC classification number: C01F7/0653 , C01F7/066
Abstract: Bauxite residue recovery includes mixing a solution of hydrochloric acid (HCL) according to a predetermined concentration, and adding the HCL solution to a quantity of raw red mud recovered from industrial operations as waste material. The highly alkaline property of the bauxite residue, commonly known as red mud is at least partially neutralized from the HCL, and makes the resulting washed red mud more amenable to subsequent uses in various applications in fields such as construction, wastewater treatment, and metal recovery processes. The process recovers washed red mud from the red mud and HCL solution by filtering the raw red mud and HCL solution for generating a stream of leach liquor from the filtrate and the recovered washed red mud from the residue.
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公开(公告)号：US12017410B1
公开(公告)日：2024-06-25
申请号：US18380500
申请日：2023-10-16
Applicant: Worcester Polytechnic Institute
Inventor： Ethan R. Wilke , Loris Fichera , Nicholas E. Pacheco
IPC: B33Y10/00 , B29C64/118 , B29C64/209 , B33Y30/00
CPC classification number: B29C64/209 , B29C64/118 , B33Y10/00 , B33Y30/00
Abstract: A nozzle apparatus for a 3D printer employs a center post or shape and extrudes a circumferential, tubular form having a central void. The nozzle includes a radial arrangement of prongs or supports around a center post, which provides space for molten print medium to flow in a 360° form around the center post. The nozzle extrudes a hollow tubular form around the post that can lay a tube shaped article on a perpendicular print bed, or can be used to deposit high resolution, hollow cylindrical segments for forming lightweight articles with less volume of print medium required due to the hollow extruded shape. A stream of air or gas may be emitted into the center of the extrusion for maintaining a tubular shape. Other suitable shapes may be employed by altering the contour of the center post and the bore.
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15.发明公开公开(公告)号：US20240141528A1
公开(公告)日：2024-05-02
申请号：US18376216
申请日：2023-10-03
Applicant: Worcester Polytechnic Institute
Inventor： Adam C. Powell , David Dussault , Matthew Earlam , Aaron Tajima , Connor Raymes
Abstract: Method and apparatus are provided for efficient metal distillation, and for related primary product process. Vertically stacked and gravity-driven evaporators and condensers are employed to distill metals, such metals having different volatilities. A multiple-effect thermal system of magnesium and other volatile metals is used to efficiently distill and separate metals from multiple metal alloys.
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Patent Agency Ranking
公开(公告)号：US20240090881A1
公开(公告)日：2024-03-21
申请号：US18519758
申请日：2023-11-27
Applicant: Worcester Polytechnic Institute
Inventor： Gregory S. Fischer , Hao Su
CPC classification number: A61B10/0241 , A61B34/30 , A61B34/37 , A61B34/76 , A61B90/11 , A61B2090/064
Abstract: A system for MRI-guided interventional needle procedures comprises a master device providing haptic feedback to and receiving position commands from the operator, a robot controller receiving position commands and providing force information to said master device, a navigation component receiving images from an MRI scanner; said navigation component providing trajectory planning information to said robot controller, a slave robot driving a needle, the slave robot receiving control information from the robot controller, and a fiber optic sensor operatively connected to said slave robot. The fiber optic sensor provides data to the robot controller to provide force information to the master device. The master device, robot controller, navigation component, slave robot and sensor are compatible with an MRI environment and operate inside an MRI scanner room.
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公开(公告)号：US11925594B2
公开(公告)日：2024-03-12
申请号：US16541414
申请日：2019-08-15
Applicant: Worcester Polytechnic Institute
Inventor： Marko Popovic , Cagdas Onal , Daniil Effraimidis , Brian Jennings , Gregory D. McCarthy , Nicholas Corso
CPC classification number: A61H3/00 , A61H1/024 , A61H1/0277 , A61H1/0281 , F15B15/103 , A61F2002/5066 , A61F2002/704 , A61F2/74 , A61F2/748 , A61F2002/762 , A61F2002/7635 , A61H2201/1238 , A61H2201/1614 , A61H2201/1635 , A61H2201/164 , A61H2201/165 , A61H2201/5007 , A61H2201/5058 , A61H2201/5071 , A61H2201/5087
Abstract: Actuators and methods of use are provided. An actuator may include an inner member made from an elastic material and defining a compartment for receiving an actuating fluid, the inner member being moveable in a longitudinal direction from a relaxed state to an expanded state by introducing an actuating fluid into the inner member; and an outer member made from an inelastic material and being disposed around the elastic inner member to control expansion of the elastic inner member in a radial direction, the outer member being moveable from a folded relaxed configuration to an unfolded extended configuration as the inner member moves from the relaxed state to the expanded state, wherein the movement of the actuator between the relaxed state and the expanded state causes a movement of a structure to which the actuator is attached.
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公开(公告)号：US11887742B2
公开(公告)日：2024-01-30
申请号：US17579042
申请日：2022-01-19
Applicant: Worcester Polytechnic Institute
Inventor： Christopher J. Massar , Bryer C. Sousa , Danielle L. Cote
Abstract: Radiation shield and methods for manufacturing a radiation shield are provided herein, the method includes identifying a substrate for the radiation shield; identifying at least one material for cold spraying on the substrate; applying by cold spray a coating of the at least one material on the substrate thereby obtaining a radiation shield. The radiation shield is lighter, thinner, and more efficient compared to conventional radiation shields.
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公开(公告)号：US11877625B2
公开(公告)日：2024-01-23
申请号：US16568839
申请日：2019-09-12
Applicant: Worcester Polytechnic Institute
Inventor： Christopher A. Brown
CPC classification number: A43C15/161 , A43B13/26 , A43C15/14 , A43C15/168
Abstract: A force absorbing device for a footwear appliance includes a shoe sole having a planar sole surface, such that the shoe sole is adapted to be disposed against a ground surface such as turf, grass or dirt. A ground interface member having a general appearance of a footwear cleat extends from the planar sole surface. Within the sole, the ground interface member couples to a force mitigation assembly for absorbing forces against the cleat. The force mitigation assembly includes an elastic field of a resilient, compressible material, and an inclined surface is disposed against the elastic field and oriented to compress the elastic field. A linkage or connecting surface transmits a displacement force for disposing the inclined surface across the elastic field, where the inclined surface compresses the elastic field as it moves across. In response, the elastic field exerts a counterforce against the ground interface member.
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公开(公告)号：US11865702B2
公开(公告)日：2024-01-09
申请号：US17410719
申请日：2021-08-24
Applicant: Worcester Polytechnic Institute
Inventor： Cagdas D. Onal , Onder Ondemir , Weijia Tao
CPC classification number: B25J15/12 , B25J9/0015 , B25J9/104 , B25J9/1075 , B25J15/10
Abstract: A soft bodied robotic member has the appearance of a finger and has a deformable rubber elongated body surrounding an array of rigid ribs interconnected by a perpendicular constraint. The plates form a series of parallel protrusions extending from opposed sides of the body and have a serrated, sawtooth or wavelike appearance. A tether runs through each row of protrusions and draws the corresponding protrusions together in a compressive manner to bend or dispose the finger toward the compressed side. Gaps between the protrusion allow movement of the protrusion towards adjacent protrusions to dispose the body in an arcuate shape. The constraint is a planar sheet that bends with the arc along its width, but resists lateral twisting, thus limiting movement outside a plane defined by the arc and the tether. Multiple finger members may be placed in close geometric proximity for gripping a common object.
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