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公开(公告)号：US12208291B2
公开(公告)日：2025-01-28
申请号：US17309368
申请日：2019-12-05
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Keith K. Mclaughlin , Douglas D. Jensen
Abstract: The present invention relates to powered air purifying respirators (PAPRs) and methods to overcome issues associated with their use in high magnetic field environments.
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公开(公告)号：US12017098B2
公开(公告)日：2024-06-25
申请号：US18309211
申请日：2023-04-28
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Keith K. Mclaughlin , Douglas D. Jensen , Sean R. Kilmer , Andrew Murphy
CPC classification number: A62B7/10 , A62B7/00 , A62B18/006 , A62B18/045 , F16K31/02 , H01M10/425 , H01M10/482 , H01M2010/4271 , H01M2220/10 , H01M2220/30
Abstract: There is provided a method of controlling a powered air purifying respirator blower system to deliver a substantially uniform volumetric airflow to a user, the system comprising a fan powered by a battery in communication with a variable speed electric motor, the variable speed electric motor is controlled by an electronic control unit for delivering a forced flow of air through at least one filter to a user, comprising the steps of: (a) determining an estimated system run time by summing a battery run time remaining and a system run time; and (b) altering a speed of the variable speed electric motor when the estimated system run time is equal to or less than a desired system run time.
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公开(公告)号：US11278749B2
公开(公告)日：2022-03-22
申请号：US16092488
申请日：2017-04-11
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Keith K. Mclaughlin , Douglas D. Jensen , Sean R. Kilmer , Andrew Murphy
Abstract: There is provided a method of controlling a powered air purifying respirator blower system to deliver a substantially uniform volumetric airflow to a user, the system comprising a fan powered by a battery in communication with a variable speed electric motor, the variable speed electric motor is controlled by an electronic control unit for delivering a forced flow of air through at least one filter to a user, comprising the steps of: (a) determining an estimated system run time by summing a battery run time remaining and a system run time; and (b) altering a speed of the variable speed electric motor when the estimated system run time is equal to or less than a desired system run time.
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公开(公告)号：US20230285778A1
公开(公告)日：2023-09-14
申请号：US18309211
申请日：2023-04-28
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Keith K. Mclaughlin , Douglas D. Jensen , Sean R. Kilmer , Andrew Murphy
CPC classification number: A62B7/10 , A62B18/006 , A62B18/045 , H01M10/482 , F16K31/02 , A62B7/00 , H01M10/425 , H01M2220/10 , H01M2010/4271 , H01M2220/30
Abstract: There is provided a method of controlling a powered air purifying respirator blower system to deliver a substantially uniform volumetric airflow to a user, the system comprising a fan powered by a battery in communication with a variable speed electric motor, the variable speed electric motor is controlled by an electronic control unit for delivering a forced flow of air through at least one filter to a user, comprising the steps of: (a) determining an estimated system run time by summing a battery run time remaining and a system run time; and (b) altering a speed of the variable speed electric motor when the estimated system run time is equal to or less than a desired system run time.
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公开(公告)号：US20220355132A1
公开(公告)日：2022-11-10
申请号：US17811390
申请日：2022-07-08
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Sean R. Kilmer , Douglas D. Jensen , Keith K. Mclaughlin , Andrew Murphy
Abstract: There is provided a method of controlling a powered air purifying respirator blower system to deliver a substantially uniform volumetric airflow to a user, the system comprising a fan powered by a variable speed electric motor, the motor is controlled by an electronic control unit for delivering a forced flow of air through at least one filter to a user, comprising the steps of: (a) monitoring system loading; and (b) decreasing a speed of the electric motor when system loading reaches a predetermined value. There is also provided an air purifying respirator blower system using such a method.
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Patent Agency Ranking
公开(公告)号：US11666785B2
公开(公告)日：2023-06-06
申请号：US17650921
申请日：2022-02-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Keith K. Mclaughlin , Douglas D. Jensen , Sean R. Kilmer , Andrew Murphy
CPC classification number: A62B7/10 , A62B7/00 , A62B18/006 , A62B18/045 , F16K31/02 , H01M10/425 , H01M10/482 , H01M2010/4271 , H01M2220/10 , H01M2220/30
Abstract: There is provided a method of controlling a powered air purifying respirator blower system to deliver a substantially uniform volumetric airflow to a user, the system comprising a fan powered by a battery in communication with a variable speed electric motor, the variable speed electric motor is controlled by an electronic control unit for delivering a forced flow of air through at least one filter to a user, comprising the steps of: (a) determining an estimated system run time by summing a battery run time remaining and a system run time; and (b) altering a speed of the variable speed electric motor when the estimated system run time is equal to or less than a desired system run time.
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公开(公告)号：US20190126077A1
公开(公告)日：2019-05-02
申请号：US16092469
申请日：2017-04-05
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Sean R. Kilmer , Douglas D. Jensen , Keith K. Mclaughlin , Andrew Murphy
Abstract: There is provided a method of controlling a powered air purifying respirator blower system to deliver a substantially uniform volumetric airflow to a user, the system comprising a fan powered by a variable speed electric motor, the motor is controlled by an electronic control unit for delivering a forced flow of air through at least one filter to a user, comprising the steps of: (a) monitoring system loading; and (b) decreasing a speed of the electric motor when system loading reaches a predetermined value. There is also provided an air purifying respirator blower system using such a method.
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公开(公告)号：US12070632B2
公开(公告)日：2024-08-27
申请号：US17811390
申请日：2022-07-08
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Sean R. Kilmer , Douglas D. Jensen , Keith K. Mclaughlin , Andrew Murphy
CPC classification number: A62B18/006 , A62B7/10 , A62B18/045 , A62B25/00 , F04D25/06 , F04D27/004 , H02P6/06 , A62B9/006
Abstract: A method of controlling a blower system of a powered air purifying respirator to deliver a substantially uniform volumetric airflow to a user, the system including a fan powered by a variable speed electric motor, the motor controlled by an electronic control unit for delivering a forced flow of air through at least one filter to a user. There is also provided an air purifying respirator blower system using such a method.
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公开(公告)号：US11413479B2
公开(公告)日：2022-08-16
申请号：US16092469
申请日：2017-04-05
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Sean R. Kilmer , Douglas D. Jensen , Keith K. Mclaughlin , Andrew Murphy
IPC: A62B18/00 , A62B18/04 , A62B7/10 , A62B25/00 , A62B9/00 , F04D25/06 , F04D27/00 , H02P6/00 , H02P6/06
Abstract: Methods and systems for controlling a powered air purifying respirator blower system where volumetric airflow is stepped down into predetermined discrete ranges based on system loading and desired runtime.
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公开(公告)号：US20220219021A1
公开(公告)日：2022-07-14
申请号：US17650921
申请日：2022-02-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Keith K. Mclaughlin , Douglas D. Jensen , Sean R. Kilmer , Andrew Murphy
Abstract: There is provided a method of controlling a powered air purifying respirator blower system to deliver a substantially uniform volumetric airflow to a user, the system comprising a fan powered by a battery in communication with a variable speed electric motor, the variable speed electric motor is controlled by an electronic control unit for delivering a forced flow of air through at least one filter to a user, comprising the steps of: (a) determining an estimated system run time by summing a battery run time remaining and a system run time; and (b) altering a speed of the variable speed electric motor when the estimated system run time is equal to or less than a desired system run time.
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