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

IPC: G21F1/02 ,  G21F1/10

CPC classification number: G21F1/026 ,  G21F1/106

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.

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

IPC: A43C15/16 ,  A43C15/14 ,  A43B13/26

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.

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

IPC: B25J15/10 ,  B25J15/12 ,  B25J9/10 ,  B25J9/00

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.

公开(公告)号：US20230372673A1

公开(公告)日：2023-11-23

申请号：US18199236

申请日：2023-05-18

Applicant: BOSTON SCIENTIFIC SCIMED, INC. ,  WORCESTER POLYTECHNIC INSTITUTE

Inventor： ANNE GU ,  HANNAH R. BAEZ ,  AVNISH SACHAR ,  JAMES WELDON ,  PARIS MARKS SAINT-PREUX ,  FARID TAVAKKOLMOGHADDAM ,  CHRISTOPHER J. NYCZ ,  ADITYA AMBANI

IPC: A61M25/01 ,  A61B1/005 ,  A61B34/30

CPC classification number: A61M25/0136 ,  A61B1/0052 ,  A61B34/30 ,  A61B2034/301

Abstract: Steerable medical devices display systems including a handle and an elongate shaft extending distally from the handle to a distal tip, a motor control assembly including a motor control housing configured to detachably interface with the handle, a first deflection mechanism disposed within the handle, the first deflection mechanism being configured to deflect the distal tip in a first plane, and a work station in electronic communication with the motor control assembly, the work station including at least a display screen. The work station may be configured to display a dashboard including visual information of a position of the distal tip.

公开(公告)号：US20230348792A1

公开(公告)日：2023-11-02

申请号：US18140275

申请日：2023-04-27

Applicant: Worcester Polytechnic Institute

Inventor： Michael Timko ,  Heather LeClerc ,  Geoffrey A. Tompsett ,  Alex R. Maag ,  Andrew R. Teixeira

IPC: C10G3/00

CPC classification number: C10G3/50 ,  C10G2300/1003 ,  C10G2300/1014 ,  C10G2300/1018 ,  C10G2400/06 ,  C10G2300/4006

Abstract: Methods for obtaining a biocrude intermediate by hydrothermal liquefaction of plant wastes are provided. Using a waste feed having a high cellulose content, the method involves grinding the waste feed to obtain a pulverized waste feed, and subjecting the pulverized waste feed to hydrothermal liquefaction at a temperature at or greater than at about 250° C. At this temperature or greater a catalyst is not necessary to obtain the biocrude. A lower temperature can be used, such as greater than about 150° C. in presence of a catalyst. The step of grinding the plant material, for example ball grinding, reduces particle size and crystallinity, and combined with the high temperature treatment improves the yield of biocrude. Biocrude can be upgraded to biofuel by high temperature hydrodeoxygenating in the presence of hydrogen. Plant wastes that would otherwise contribute green house gases are instead converted to fuels.

公开(公告)号：US20230242872A1

公开(公告)日：2023-08-03

申请号：US18114022

申请日：2023-02-24

Applicant: The Board of Trustees of the Leland Stanford Junior University ,  Worcester Polytechnic Institute

Inventor： Utkan Demirci ,  Erkan Tüzel ,  James Leonard Kingsley ,  Thiruppathiraja Chinnasamy

IPC: C12N5/071 ,  B01L3/00

CPC classification number: C12N5/0612 ,  B01L3/502746 ,  B01L3/502761 ,  C12M47/04

Abstract: A microfluidic chip is provided for self-sorting highly motile, morphologically normal sperm cell with high DNA integrity from a fresh semen sample. The sperm self-sorting microfluidic chip has one or more inlet chambers, and sperm collection outlet chamber(s), and the middle of the channel features various micro-fabricated structures in different geometrical shapes and orientations, with varying periodicities and patterns, such as an array of micro-fabricated pillars that facilitate the transport of the active and healthy sperm into the outlet chamber.

公开(公告)号：US20230192548A1

公开(公告)日：2023-06-22

申请号：US18110484

申请日：2023-02-16

Applicant: Worcester Polytechnic Institute

Inventor： Shuai Wang ,  Nima Rahbar ,  Suzanne F. Scariata

IPC: C04B24/14 ,  C04B41/63 ,  C12N11/14 ,  C12N9/88 ,  E01C7/14 ,  E01C7/35

CPC classification number: C04B24/14 ,  C04B41/63 ,  C12N11/14 ,  C12N9/88 ,  C12Y402/01001 ,  E01C7/147 ,  E01C7/35 ,  C04B2111/72

Abstract: Methods for repair of cracks and niches in concrete using carbonic anhydrase embedded in a gelatin, hydrogel, or other aqueous matrix are provided. A durable corrosion resistant concrete mix containing carbonic anhydrase is provided, as are methods of making and using the durable corrosion resistant concrete. Corrosion resistance and durability derive from decreased porosity compared to concrete without the enzyme, conferring decreased access of deleterious materials such as chloride ions to interior portions of the concrete.

公开(公告)号：US20230175774A1

公开(公告)日：2023-06-08

申请号：US18103794

申请日：2023-01-31

Applicant: Worcester Polytechnic Institute

Inventor： Jamal S. Yagoobi ,  Mengqiao Yang ,  Mehrnoosh F. Dardashti

IPC: F26B3/12 ,  F26B25/00

CPC classification number: F26B3/12 ,  F26B25/002 ,  F26B2200/18

Abstract: An atomizing spray dryer employs one or more stages defined by ultrasonic transducers in close proximity to a liquid feed opening forming a path of an atomization flow for producing uniform droplets from a close tolerance with the transducer. The atomization flow exits a gap between the transducer and an outer edge of the opening, such that the passed liquid is responsive to an oscillation of the transducer for forming the droplets. A conical or other suitably shaped transducer engages a substantially round liquid feed opening. Subsequent stages may include a circular, ring, or other suitable shape aligned to receive the atomization flow from a circumference of the conical base, or may also take any suitable shape, preferably to receive droplets directed by the first stage.

公开(公告)号：US20230132688A1

公开(公告)日：2023-05-04

申请号：US17975437

申请日：2022-10-27

Applicant: Worcester Polytechnic Institute

Inventor： Jamal S. Yagoobi

IPC: H05K7/20 ,  H05K1/02

Abstract: A combined electrohydrodynamic (EHD) and dielectrophoretic (DEP) cooling approach for a processor or similar electronics in a zero gravity environment is beneficial in space exploration. An EHD pumping mechanism is defined by an array of alternating, polarized electrodes surrounding a heat sink coupled to the processor for heat exchange, such as a thermally conductive layer or coating. The array may be circular, rectangular, or any suitable geometry, generally guided by a shape of the heat sink/processor. Cooling fluid is drawn or pumped towards the heat sink by EHD electrodes, and a dielectrophoretic (DEP) electrode disposed above the center of the heat sink extracts the generated vapor bubbles away from the heated surface with a diverging electrical field. One configuration calls for a radial arrangement of EHD electrodes drawing the cooling fluid towards a centrally located heat sink.

公开(公告)号：US20230098674A1

公开(公告)日：2023-03-30

申请号：US17695215

申请日：2022-03-15

Applicant: CASE WESTERN RESERVE UNIVERSITY ,  Worcester Polytechnic Institute

Inventor： Eben Alsberg ,  Anna D. Dikina ,  Marsha W. Rolle ,  Hannah A. Strobel

IPC: A61L27/38 ,  A61K35/42 ,  A61L27/58 ,  A61K35/32 ,  A61K35/44 ,  A61L27/54 ,  A61K35/28 ,  C12N5/071 ,  C12N5/077

Abstract: A modular engineered tissue construct includes a plurality of fused self-assembled, scaffold-free, high-density cell aggregates. At least one cell aggregate includes a plurality of cells and a plurality of biocompatible and biodegradable nanoparticles and/or microparticles that are incorporated within the cell aggregates. The nanoparticles and/or microparticles acting as a bulking agent within the cell aggregate to increase the cell aggregate size and/or thickness and improve the mechanical properties of the cell aggregate as well as to deliver bioactive agents.