公开(公告)号：US20230363475A1

公开(公告)日：2023-11-16

申请号：US18357392

申请日：2023-07-24

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： John M. Facer ,  Christopher P. Henderson ,  Peter S. Leonard ,  Desmond T. Curran

IPC: A41D13/11 ,  A62B23/02 ,  A62B18/02

CPC classification number: A41D13/11 ,  A62B23/025 ,  A62B18/025 ,  A41D13/1107

Abstract: A maintenance-free respirator 10 that includes a mask harness and a mask body 11. The mask body 11 has at least one layer of filter media 56 and has a perimeter 32 that includes an upper segment 34. The upper segment 34 includes first and second concave segments 36, 38 that are located, respectively, on first and second sides of a central plane 40, when viewing the mask body from a top view. A maintenance-free respirator 10 of this configuration is comfortable to wear and can provide a snug fit to a wearer's face, particularly beneath each of the wearer's eyes, while at the same time having an ability to improve compatibility with various protective eyewear.

公开(公告)号：US10827787B2

公开(公告)日：2020-11-10

申请号：US15726723

申请日：2017-10-06

Applicant: 3M Innovative Properties Company

Inventor： John M. Facer ,  Christopher P. Henderson ,  Peter S. Leonard ,  Desmond T. Curran

IPC: A41D13/11 ,  A62B23/02 ,  A62B18/02

Abstract: A maintenance-free respirator 10 that includes a mask harness and a mask body 11. The mask body 11 has at least one layer of filter media 56 and has a perimeter 32 that includes an upper segment 34. The upper segment 34 includes first and second concave segments 36, 38 that are located, respectively, on first and second sides of a central plane 40, when viewing the mask body from a top view. A maintenance-free respirator 10 of this configuration is comfortable to wear and can provide a snug fit to a wearer's face, particularly beneath each of the wearer's eyes, while at the same time having an ability to improve compatibility with various protective eyewear.

公开(公告)号：US20230356011A1

公开(公告)日：2023-11-09

申请号：US18356443

申请日：2023-07-21

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： John M. Facer ,  Audra A. Wilson ,  Christopher P. Henderson

IPC: A62B23/02 ,  A62B18/02 ,  A41D13/11

CPC classification number: A62B23/025 ,  A62B18/025 ,  A41D13/11 ,  A41D13/1161 ,  A41D13/1115

Abstract: A respirator that includes a harness and a mask body that is air permeable. The mask body has a sinus region and a primary filtering region and comprises at least one nonwoven fibrous webs The sinus region of the mask body exhibits a resistance to airflow that is greater than the primary filtering region. This resistance to airflow is achieved through an alteration of the intrinsic structure of the plurality of nonwoven fibrous layers in the sinus region without adding additional material to the mask body. The alteration of the intrinsic structure assists in preventing eyewear fogging.

公开(公告)号：US20210015184A1

公开(公告)日：2021-01-21

申请号：US16948919

申请日：2020-10-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： John M. Facer ,  Christopher P. Henderson ,  Peter S. Leonard ,  Desmond T. Curran

IPC: A41D13/11 ,  A62B23/02 ,  A62B18/02

Abstract: A maintenance-free respirator 10 that includes a mask harness and a mask body 11. The mask body 11 has at least one layer of filter media 56 and has a perimeter 32 that includes an upper segment 34. The upper segment 34 includes first and second concave segments 36, 38 that are located, respectively, on first and second sides of a central plane 40, when viewing the mask body from a top view. A maintenance-free respirator 10 of this configuration is comfortable to wear and can provide a snug fit to a wearer's face, particularly beneath each of the wearer's eyes, while at the same time having an ability to improve compatibility with various protective eyewear.

公开(公告)号：US12186598B2

公开(公告)日：2025-01-07

申请号：US17811968

申请日：2022-07-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Christopher P. Henderson ,  Reyad A. Abdulqader ,  Ciaran G. McMenamin ,  Audra A. Wilson ,  John M. Facer

IPC: A62B23/02 ,  A41D13/11 ,  A62B18/10

Abstract: A personal respiratory protection device comprising an upper panel, a central panel, and a lower panel, the central panel being separated from each of the upper and lower panels by a first and second fold, seam, weld or bond, respectively, such that device is capable of being folded flat for storage along the first and second fold, seam, weld or bond and opened to form a cup-shaped air chamber over the nose and mouth of the wearer when in use, wherein the upper panel has a graspable upper tab, the upper tab being graspable in use to open the device.

公开(公告)号：US11904191B2

公开(公告)日：2024-02-20

申请号：US17356008

申请日：2021-06-23

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： John M. Facer ,  Audra A. Wilson ,  Christopher P. Henderson

IPC: A62B23/02 ,  A62B18/02 ,  A41D13/11

CPC classification number: A62B23/025 ,  A41D13/11 ,  A62B18/025 ,  A41D13/1115 ,  A41D13/1161

Abstract: A respirator that includes a harness and a mask body that is air permeable. The mask body has a sinus region and a primary filtering region and at least one nonwoven fibrous web. The sinus region of the mask body exhibits a resistance to airflow that is greater than the primary filtering region. This resistance to airflow is achieved through an alteration of the intrinsic structure of the plurality of nonwoven fibrous layers in the sinus region without adding additional material to the mask body. The alteration of the intrinsic structure assists in preventing eyewear fogging.

公开(公告)号：US12245648B2

公开(公告)日：2025-03-11

申请号：US18357392

申请日：2023-07-24

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： John M. Facer ,  Christopher P. Henderson ,  Peter S. Leonard ,  Desmond T. Curran

IPC: A41D13/11 ,  A62B18/02 ,  A62B23/02

Abstract: A maintenance-free respirator 10 that includes a mask harness and a mask body 11. The mask body 11 has at least one layer of filter media 56 and has a perimeter 32 that includes an upper segment 34. The upper segment 34 includes first and second concave segments 36, 38 that are located, respectively, on first and second sides of a central plane 40, when viewing the mask body from a top view. A maintenance-free respirator 10 of this configuration is comfortable to wear and can provide a snug fit to a wearer's face, particularly beneath each of the wearer's eyes, while at the same time having an ability to improve compatibility with various protective eyewear.

公开(公告)号：US11877604B2

公开(公告)日：2024-01-23

申请号：US16948919

申请日：2020-10-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： John M. Facer ,  Christopher P. Henderson ,  Peter S. Leonard ,  Desmond T. Curran

IPC: A41D13/11 ,  A62B23/02 ,  A62B18/02

CPC classification number: A41D13/11 ,  A41D13/1107 ,  A62B18/025 ,  A62B23/025

Abstract: A maintenance-free respirator 10 that includes a mask harness and a mask body 11. The mask body 11 has at least one layer of filter media 56 and has a perimeter 32 that includes an upper segment 34. The upper segment 34 includes first and second concave segments 36, 38 that are located, respectively, on first and second sides of a central plane 40, when viewing the mask body from a top view. A maintenance-free respirator 10 of this configuration is comfortable to wear and can provide a snug fit to a wearer's face, particularly beneath each of the wearer's eyes, while at the same time having an ability to improve compatibility with various protective eyewear.

公开(公告)号：US20220339474A1

公开(公告)日：2022-10-27

申请号：US17811968

申请日：2022-07-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Christopher P. Henderson ,  Reyad A. Abdulqader ,  Ciaran G. McMenamin ,  Audra A. Wilson ,  John M. Facer

IPC: A62B23/02 ,  A41D13/11 ,  A62B18/10

Abstract: A personal respiratory protection device comprising an upper panel, a central panel, and a lower panel, the central panel being separated from each of the upper and lower panels by a first and second fold, seam, weld or bond, respectively, such that device is capable of being folded flat for storage along the first and second fold, seam, weld or bond and opened to form a cup-shaped air chamber over the nose and mouth of the wearer when in use, wherein the upper panel has a graspable upper tab, the upper tab being graspable in use to open the device.

公开(公告)号：US20180154195A1

公开(公告)日：2018-06-07

申请号：US15572515

申请日：2016-05-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Christopher P. Henderson ,  Reyad A. Abdulqader ,  Ciaran G. McMenamin ,  Audra A. Wilson ,  John M. Facer

IPC: A62B23/02 ,  A41D13/11 ,  A62B18/10

CPC classification number: A62B23/025 ,  A41D13/1115 ,  A62B18/10

Abstract: A personal respiratory protection device (10) comprising an upper panel (18), a central panel (16), and a lower panel (20), the central panel being separated from each of the upper and lower panels by a first and second fold, seam, weld or bond, respectively, such that device is capable of being folded flat for storage along the first and second fold, seam, weld or bond and opened to form a cup-shaped air chamber over the nose and mouth of the wearer when in use, wherein the upper panel has a graspable upper tab, the upper tab (41) being graspable in use to open the device.