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公开(公告)号：US20190128811A1
公开(公告)日：2019-05-02
申请号：US16136232
申请日：2018-09-19
Applicant: Worcester Polytechnic Institute
Inventor： Shaymus W. Hudson , Diran Apelian , Robert DeSaro , Joseph C. Craparo
IPC: G01N21/71
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.
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公开(公告)号：US20190126497A1
公开(公告)日：2019-05-02
申请号：US16176138
申请日：2018-10-31
Applicant: Worcester Polytechnic Institute
Inventor： Cagdas D. Onal , Onder Ondemir , Weijia Tao
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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公开(公告)号：US20190104982A1
公开(公告)日：2019-04-11
申请号：US16212576
申请日：2018-12-06
Inventor： Raymond Dunn , John McNeill , Yitzhak Mendelson
Abstract: Systems, devices, and methods of the present application relate to the diagnostic measurement of condition for pressure ulcers. Preferred embodiments utilize pressure measurements at body locations to determine a diagnostic pressure ulcer value. A pressure sensor device generates patient pressure data that is processed by a data processor which utilizes a diagnostic function to determine the diagnostic value that indicates whether corrective action is needed to prevent pressure ulcer formation. One or more sensor devices can be attached to a patient to measure to transmit data for further processing.
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公开(公告)号：US20180343934A1
公开(公告)日：2018-12-06
申请号：US16000167
申请日：2018-06-05
Applicant: Worcester Polytechnic Institute
Inventor： Alex Riley
IPC: A41D3/04
Abstract: A protective garment, such as a raincoat or windbreaker has an attached accessory extending from the shoulder region between backpack straps for covering the backpack and shedding precipitation such as snow and rain. The garment accessory includes a flexible planar material coupled in a water shedding engagement with a rear facing portion (back) of the garment, such that the flexible planar material is adapted to shed water over a created void adjacent the rear facing portion, the void resulting from a backpack or other load suspended from straps extending over a shoulder portion of the outerwear above the coupling. A slot in the rear facing portion is adapted to receive the deformed flexible planar material when not deployed over the void, and a zippered receptacle or pouch on an opposed side of the rear facing portion is in communication with the slot for receiving the deformed flexible planar material.
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公开(公告)号：US20180296382A1
公开(公告)日：2018-10-18
申请号：US16014386
申请日：2018-06-21
Applicant: Worcester Polytechnic Institute
Inventor： Marko Popovic , Saivimal Sridar , Corey Majeika , Nicholas Deisadze , Erika Giancarlo
IPC: A61F5/058
Abstract: Variable stiffness devices and methods of their use are provided. In some embodiments, a variable stiffness device comprises an inner member defining a compartment for receiving an actuating fluid; an outer member disposed around the inner member; and a granular medium disposed between the inner member and the outer member; wherein the inner member is being moveable in a radial direction from a relaxed state to an expanded state by introducing the actuating fluid into the compartment of the inner member to compress the granular medium against the outer member to increase the stiffness of the device.
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Patent Agency Ranking
公开(公告)号：US20180271389A1
公开(公告)日：2018-09-27
申请号：US15985912
申请日：2018-05-22
Applicant: Worcester Polytechnic Institute
Inventor： Ki H. Chon , Jowoon Chong
IPC: A61B5/024 , A61B5/0464 , A61B5/00
CPC classification number: A61B5/02405 , A61B5/0464 , A61B5/6898 , A61B5/7282
Abstract: A real-time arrhythmia discrimination method is used in smartphones, which can discriminate between NSR, AF, PACs and PVCs using pulsatile time series collected from a smartphone's camera. To increase the sensitivity of AF detection and add the new capabilities of PVC and PAC identification, the arrhythmia discrimination method of these teachings combines Root Mean Square of Successive RR Differences (RMSSD), Shannon Entropy (ShE) and turning point ratio (TPR), with the Poincare plot, and utilizes the features of pulse rise/fall time and amplitude for arrhythmia discrimination.
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267.发明授权公开(公告)号：US10052458B2
公开(公告)日：2018-08-21
申请号：US14056205
申请日：2013-10-17
Applicant: WORCESTER POLYTECHNIC INSTITUTE
Inventor： Gregory S. Fischer , Hao Su
CPC classification number: A61M25/0152 , A61B34/30 , A61B34/37 , A61B34/76 , A61B2034/301 , A61B2034/302 , A61M5/3287 , A61M5/46 , A61M25/0116 , A61M2005/3289 , A61M2205/50
Abstract: A needle steering system and apparatus provides active, semi-autonomous control of needle insertion paths while still enabling a clinician ultimate control over needle insertion. The present teaching describes a method and system for controlling needle path as the needle is inserted by precisely controlling the rotation of the needle as it continuously rotates during insertion. This enables underactuated 2 degree-of-freedom (DOF) control of the direction and the curvature of the needle from a single rotary actuator. Control of the rotary motion is therefore decoupled from the needle insertion. The rotary motion controls steering effort and direction, while the insertion controls needle depth or insertion speed. In one implementation, the proposed method does not require constant velocity insertion, interleaved insertion and rotation, or known insertion position or speed. The insertion may be provided by a robot or other automated method, may be a manual insertion, or may be a teleoperated insertion.
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公开(公告)号：US20180198285A1
公开(公告)日：2018-07-12
申请号：US15862942
申请日：2018-01-05
Applicant: Worcester Polytechnic Institute
Inventor： Yousef Mahmoud
CPC classification number: H02J3/385 , H02S40/32 , H02S50/00 , Y02E10/563
Abstract: A power point tracking apparatus employs irradiance detection for performing Maximum Power Point Tracking (MPPT) of a PV panel. The apparatus controls an operating voltage of a PV panel inverter by regulating the operating voltage of the inverter at a computed optimal voltage based on a detected irradiance of light on the solar panel providing power to the inverter to result in a maximum power generation from the solar panel. The inverter receives the DC (direct current) from the solar panel and generates an AC (alternating current) signal at a fixed voltage (typically 110-120 v) usable by grid based power consumers.
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公开(公告)号：US20180035753A1
公开(公告)日：2018-02-08
申请号：US15675989
申请日：2017-08-14
Applicant: Worcester Polytechnic Institute
Inventor： 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
CPC classification number: A43B13/186 , A43B5/02 , A43B13/12 , A43B13/122 , A43B13/141 , A43B13/203 , A43B13/22
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.
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公开(公告)号：US09772108B2
公开(公告)日：2017-09-26
申请号：US14925883
申请日：2015-10-28
Applicant: Worcester Polytechnic Institute
Inventor： Ali S. Rangwala , Xiaochuan Shi , Kemal S. Arsava , Glenn Mahnken
CPC classification number: F23G7/05 , F23D5/123 , F23G2900/50213 , F23K5/12
Abstract: Methods and systems for clean-up of hazardous spills are provided. In some aspects, there is provided a system for burning an water-oil emulsion that includes an enclosure configured to hold a water-oil emulsion; one or more conductive rods disposed throughout the enclosure, each rod of the one or more roads having a heater portion to be submerged in the water-oil emulsion and a collector portion to project above the water-oil emulsion, wherein the collector portion is longer than the heater portion; and a delivery system for supplying an water-oil emulsion to the enclosure, the delivery system is configured to maintain a constant level of the water-oil emulsion in the enclosure as the water-oil emulsion is burned. The enclosure may further include one or more adjustable air inlets.
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