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公开(公告)号：US20250010109A1
公开(公告)日：2025-01-09
申请号：US18712316
申请日：2022-12-02
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Frank Ding , Darin K. Thompson , Daniel B. Taylor , Steven T. Awiszus , Wenli Wang , Kevin A. Frankel , Dong Fu , Richard C. Webb , Lisa M. Croll
Abstract: A filter remaining capacity detection system is presented that includes a parameter retriever that retrieves parameter information for an atmosphere around the filter. The system also includes an adsorption estimate generator that, based on the parameter information retrieved, solves a set of controlling equations to generate an adsorption estimate. The controlling equations are a set of mass and energy balance equations. The system also includes a remaining capacity detector that, based on the adsorption estimate, generates a remaining capacity estimate. The system also includes a signal generator that generates a signal if the remaining capacity estimate is below a threshold.
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公开(公告)号：US20230290091A1
公开(公告)日：2023-09-14
申请号：US18007213
申请日：2021-07-28
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Ambuj Sharma , Claire R. Donoghue , Stephen R. Gamble , Andrew W. Long , Christine L. McCool , Caitlin E. Meree , Henning T. Urban , Andrew S. Viner , Richard C. Webb , Caroline M. Ylitalo
IPC: G06T19/20
CPC classification number: G06T19/20 , G06T2219/2021
Abstract: A method for determining personal protective equipment (PPE) comfort for an individual wearer includes defining a first anatomical shape data representative of an anatomical area of the individual wearer prior to donning a PPE, a second anatomical shape data representative of the anatomical area of the individual wearer after donning the PPE, and comparing the first anatomical shape data with the second anatomical shape data. The method further includes determining a soft skin tissue deformation at a plurality of predetermined anatomical positions based on the comparison between the first anatomical shape data and the second anatomical shape data, and determining a displacement comfort threshold (CTd) value based on the soft skin tissue deformation. The method also includes determining a pressure pain threshold (PPT) value, and determining a comfort metric based on the PPT values and the CTd values. The method also includes generating a notification corresponding to the comfort metric.
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Patent Agency Ranking
公开(公告)号：US11582548B2
公开(公告)日：2023-02-14
申请号：US15733080
申请日：2018-11-21
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Van Cuong Bui , Caroline M. Ylitalo , Caitlin E. Meree , Patrick Hjort , William Bedingham , Assumpta A. G. Bennaars-Eiden , Daniel B. Taylor , Jonas A. Nilsson , Richard C. Webb , Andrew W. Long , Henning T. Urban
Abstract: A ring-shaped cushion for a hearing protector or audio headset. The cushion has a circumferential contact pad for sealing on a wearer's head and an attachment for sealing with an earmuff. The cushion further has a sound insulation tube that inwardly defines an inner space. The sound insulation tube extends between the contact pad and the attachment. The cushion has a ventilation passage that extends entirely through the cushion between an inlet opening in the contact pad and an area outside of the inner space. The cushion may further include one or more physiological sensors to monitor the health of a wearer.
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公开(公告)号：US11534632B2
公开(公告)日：2022-12-27
申请号：US16641687
申请日：2018-08-28
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Andrew S. Viner , Richard C. Webb , Nicholas G. Amell , Jessica L. T. Hauge , David R. Stein , Andrew P. Bonifas , Neal A. Rakow , Caroline M. Ylitalo , Joseph P. Kronzer , Claire R. Donoghue , Christopher P. Henderson
Abstract: A method of fit testing includes providing a respirator; providing a sensor having a sensing element removably positioned substantially within an interior gas space of the respirator; providing a reader configured to be in wireless communication with the sensor; positioning the respirator over a mouth and a nose of a user while the sensor is positioned substantially within an interior gas space of the respirator; and observing respirator fit assessment data communicated from the sensor to the reader.
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公开(公告)号：US20220387653A1
公开(公告)日：2022-12-08
申请号：US17708475
申请日：2022-03-30
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michael W. Kobe , Michael S. Wendland , Richard C. Webb , Michael E. Hamerly , Daniel J. O'Neal , Kelvin J. Witcher , Dawud H. Tan , Daniel J. Zillig
Abstract: The present disclosure provides an ethylene oxide sterilization sensor and method of use. The sensor includes: at least one thermal indicator component independently selected from an electronic thermal sensor, an irreversible temperature indicator, and a heat-shrinkable film; an acid-functional porous sorbent or an acid-functional nonwoven fibrous substrate in thermal contact with the at least one thermal indicator component; and an acid having a boiling point above 120° C. and a pKa of no greater than 2.5. The acid is impregnated in or covalently attached to the porous sorbent or is covalently attached to the nonwoven fibrous substrate. The sensor includes at least one of the electronic thermal sensor, the irreversible temperature indicator, or the acid-functional nonwoven fibrous substrate.
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公开(公告)号：US20200246646A1
公开(公告)日：2020-08-06
申请号：US16641787
申请日：2018-08-31
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Richard C. Webb , Andrew S. Viner , Daniel B. Taylor , Jessica L. T. Hauge , Jennifer L. Kamarainen , Jacob P. Vanderheyden , Silvia G. Guttmann , Kenneth B. L. Stanford
Abstract: A method of fit testing includes providing a respirator donned by a wearer, providing an aerosol generator with a known aerosol output parameter, providing an enclosure that is physically supported around the wearer's head, where the aerosol generator delivers aerosol with the known aerosol output parameter that is at least partially contained within the enclosure around wearer's head, providing a sensor in electrical communication with a sensing element, where the sensor is operably connected to the respirator, and where the sensor is configured to monitor a particulate concentration parameter within the respirator, and providing a reader configured to communicate with the sensor, where the reader is configured to provide a respirator fit parameter based on a comparison of the particulate concentration parameter to the known aerosol output parameter.
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公开(公告)号：US20200237258A1
公开(公告)日：2020-07-30
申请号：US16641742
申请日：2018-08-28
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Richard C. Webb , Andrew S. Viner , Nicholas G. Amell , Andrew P. Bonifas , Neal A. Rakow
IPC: A61B5/08 , A61B5/097 , A61B5/00 , G01N27/12 , G01N33/497
Abstract: A system includes a respirator, a sensor including a sensing element, and a reader configured to be in wireless communication with the sensor. The sensor is positioned substantially within an interior gas space of the respirator.
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