-
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.
-
12.发明申请公开(公告)号：US20220001220A1
公开(公告)日：2022-01-06
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.
-
Patent Agency Ranking
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.
-
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.
-
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.
-
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.
-
公开(公告)号：US20210001066A1
公开(公告)日：2021-01-07
申请号：US16642171
申请日：2018-08-31
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Richard C. Webb , Andrew S. Viner , Daniel B. Taylor , Christine L. McCool , Douglas D. Jensen
Abstract: There is provided a sensor including a housing, where the housing has an opening configured to receive a sensing element; an electric circuit operably connected to the housing, where the electric circuit is configured to detect at least one electrical characteristic across at least one pair of electrodes positioned on the sensing element; at least one gas-moving element in electrical communication with the electric circuit; and a reader in communication with the electric circuit, where the reader is configured to compare information about a gas volume external to the housing with information about a gas volume within the housing.
-
-
-
-
-
-
Search Results
17
records
(took 0.026 seconds)
