公开(公告)号：US20210205136A1

公开(公告)日：2021-07-08

申请号：US17249978

申请日：2021-03-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Johan M. P. Hansson ,  Kjell A. Hummel ,  Thomas B. Stenvall ,  Linus P. Bastman

IPC: A61F9/06 ,  G02B7/00

Abstract: An automatic darkening filter assembly for a welding protector and a welding protector that includes the automatic darkening filter assembly. The automatic darkening filter assembly has a housing that forms an opening in which a switchable light filter is arranged. The switchable light filter is retained by a first and a second resilient gasket that are arranged on opposite sides of the switchable light filter and which each extend circumferentially adjacent a periphery of the switchable light filter. The invention helps maximizing the robustness of the welding protector and facilitates assembly.

公开(公告)号：US10952902B2

公开(公告)日：2021-03-23

申请号：US16348576

申请日：2017-11-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Johan M. P. Hansson ,  Kjell A. Hummel ,  Thomas B. Stenvall ,  Linus P. Bastman

IPC: G02F1/1333 ,  A61F9/06 ,  G02B7/00 ,  G02F1/1335

Abstract: An automatic darkening filter assembly for a welding protector and a welding protector that includes the automatic darkening filter assembly. The automatic darkening filter assembly has a housing that forms an opening in which a switchable light filter is arranged. The switchable light filter is retained by a first and a second resilient gasket that are arranged on opposite sides of the switchable light filter and which each extend circumferentially adjacent a periphery of the switchable light filter. The invention helps maximizing the robustness of the welding protector and facilitates assembly.

公开(公告)号：US20200297060A1

公开(公告)日：2020-09-24

申请号：US16645715

申请日：2018-09-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Martin Berggren ,  Thomas B. Stenvall

IPC: A42B3/20 ,  A42B3/22

Abstract: A welding helmet (1) with a head suspension system, a protective shield (2) and a movable visor (3). The protective shield forms a see-through window. The welding helmet further has a first neck shield (6). The protective shield forms a lower end at which the first neck shield is removably attachable.

公开(公告)号：US11376162B2

公开(公告)日：2022-07-05

申请号：US17249978

申请日：2021-03-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Johan M. P. Hansson ,  Kjell A. Hummel ,  Thomas B. Stenvall ,  Linus P. Bastman

IPC: G02B7/00 ,  A61F9/06 ,  G02F1/1335

Abstract: An automatic darkening filter assembly for a welding protector and a welding protector that includes the automatic darkening filter assembly. The automatic darkening filter assembly has a housing that forms an opening in which a switchable light filter is arranged. The switchable light filter is retained by a first and a second resilient gasket that are arranged on opposite sides of the switchable light filter and which each extend circumferentially adjacent a periphery of the switchable light filter. The invention helps maximizing the robustness of the welding protector and facilitates assembly.

公开(公告)号：US20190262178A1

公开(公告)日：2019-08-29

申请号：US16348576

申请日：2017-11-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Johan M. P. Hansson ,  Kjell A. Hummel ,  Thomas B. Stenvall ,  Linus P. Bastman

IPC: A61F9/06 ,  G02B7/00

Abstract: An automatic darkening filter assembly for a welding protector and a welding protector that includes the automatic darkening filter assembly. The automatic darkening filter assembly has a housing that forms an opening in which a switchable light filter is arranged. The switchable light filter is retained by a first and a second resilient gasket that are arranged on opposite sides of the switchable light filter and which each extend circumferentially adjacent a periphery of the switchable light filter. The invention helps maximizing the robustness of the welding protector and facilitates assembly.

公开(公告)号：US11324275B2

公开(公告)日：2022-05-10

申请号：US16645715

申请日：2018-09-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Martin Berggren ,  Thomas B. Stenvall

IPC: A61F9/06 ,  A42B3/20 ,  A42B3/22

Abstract: A welding helmet (1) with a head suspension system, a protective shield (2) and a movable visor (3). The protective shield forms a see-through window. The welding helmet further has a first neck shield (6). The protective shield forms a lower end at which the first neck shield is removably attachable.

公开(公告)号：US20200289323A1

公开(公告)日：2020-09-17

申请号：US16767713

申请日：2018-12-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Björn Daniels ,  Thomas B. Stenvall

IPC: A61F9/06

Abstract: There is provided a welding helmet having a protective shield and a welding visor. The welding visor is detachably attachable to the protective shield by means of a bayonet coupling. The bayonet coupling has a first bayonet part and a second bayonet part. The first bayonet part is rotatably connected to the welding visor for a rotation between a release position, in which the bayonet coupling is disengaged, and an engage position, in which a disengagement of the bayonet coupling is disabled. The bayonet coupling further forms a pivot for pivoting the welding visor relative to the protective shield between a welding position, in which the welding visor covers the see-through window, and a non-welding position, in which the welding visor uncovers the see-through window. A locking member is provided that is switchable between a locked position and an unlocked position.