公开(公告)号：US20210228921A1

公开(公告)日：2021-07-29

申请号：US17250119

申请日：2019-06-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： David M. Castiglione ,  Thomas R. Braxton, II

IPC: A62B27/00 ,  A62B18/02 ,  A62B18/10 ,  A62B9/02 ,  A41D13/11

Abstract: There is provided a respiratory protection device comprising a mask body defining a breathable air zone for a wearer and having a front cover; an exhale valve in fluid communication with the breathable air zone; and a seal check mechanism disposed in the front cover, where the seal check mechanism comprises a button associated with a flap such that, when actuated, the flap biases the exhale valve in a closed position. There is provided in some embodiments a plane of the button intersecting with a plane of the exhale valve. There is also provided in some embodiments the button and the plunger being a monolithic part.

公开(公告)号：US20240316373A1

公开(公告)日：2024-09-26

申请号：US18734896

申请日：2024-06-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： David M. Castiglione ,  Thomas R. Braxton, II

IPC: A62B27/00 ,  A41D13/11 ,  A62B7/12 ,  A62B9/02 ,  A62B18/02 ,  A62B18/10

CPC classification number: A62B27/00 ,  A41D13/1184 ,  A62B9/02 ,  A62B18/02 ,  A62B18/10 ,  A62B7/12

Abstract: There is provided a respiratory protection device comprising a mask body defining a breathable air zone for a wearer and having a front cover; an exhale valve in fluid communication with the breathable air zone; and a seal check mechanism disposed in the front cover, where the seal check mechanism comprises a button associated with a flap such that, when actuated, the flap biases the exhale valve in a closed position. There is provided in some embodiments a plane of the button intersecting with a plane of the exhale valve. There is also provided in some embodiments the button and the plunger being a monolithic part.

公开(公告)号：US12029926B2

公开(公告)日：2024-07-09

申请号：US17250119

申请日：2019-06-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： David M. Castiglione ,  Thomas R. Braxton, II

IPC: A62B18/10 ,  A41D13/11 ,  A62B9/02 ,  A62B18/02 ,  A62B27/00 ,  A62B7/12

CPC classification number: A62B27/00 ,  A41D13/1184 ,  A62B9/02 ,  A62B18/02 ,  A62B18/10 ,  A62B7/12

Abstract: There is provided a respiratory protection device comprising a mask body defining a breathable air zone for a wearer and having a front cover; an exhale valve in fluid communication with the breathable air zone; and a seal check mechanism disposed in the front cover, where the seal check mechanism comprises a button associated with a flap such that, when actuated, the flap biases the exhale valve in a closed position. There is provided in some embodiments a plane of the button intersecting with a plane of the exhale valve. There is also provided in some embodiments the button and the plunger being a monolithic part.

公开(公告)号：USD890916S1

公开(公告)日：2020-07-21

申请号：US29690292

申请日：2019-05-07

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Designer： David M. Castiglione ,  Jacob P. Vanderheyden ,  Thomas R. Braxton, II