公开(公告)号：US20190083822A1

公开(公告)日：2019-03-21

申请号：US16167955

申请日：2018-10-23

申请人： 3M INNOVATIVE PROPERTIES COMPANY

发明人： Garry J. Walker ,  Andrew Murphy ,  Desmond T. Curran ,  Derek A. Parkin ,  Thomas I. Insley ,  Mark A.J. Fernandes

IPC分类号： A62B18/04 ,  A62B18/08 ,  A62B18/10 ,  A62B17/04 ,  A62B18/00

摘要： A respirator has a shell that defines a breathable air zone for a user wearing the respirator. An air flow control system for the respirator has an air delivery conduit within the shell of the respirator, a valve member moveable relative to the air delivery conduit and within the shell to vary the amount of air flow through the air delivery conduit, and a valve actuator outside of the shell of the respirator. The valve actuator is manipulatable by a user of the respirator while wearing the respirator to control movement of the valve member.

公开(公告)号：US20210387028A1

公开(公告)日：2021-12-16

申请号：US17446466

申请日：2021-08-31

申请人： 3M INNOVATIVE PROPERTIES COMPANY

发明人： Garry J. Walker ,  Andrew Murphy ,  Desmond T. Curran ,  Derek A. Parkin ,  Thomas I. Insley ,  Mark A.J. Fernandes

IPC分类号： A62B18/04 ,  A62B17/04 ,  A62B18/00 ,  A42B3/28 ,  A62B18/08 ,  A62B18/10

摘要： A respirator has a shell that defines a breathable air zone for a user wearing the respirator. An air flow control system for the respirator has an air delivery conduit within the shell of the respirator, a valve member moveable relative to the air delivery conduit and within the shell to vary the amount of air flow through the air delivery conduit, and a valve actuator outside of the shell of the respirator. The valve actuator is manipulatable by a user of the respirator while wearing the respirator to control movement of the valve member.

公开(公告)号：US20210077838A1

公开(公告)日：2021-03-18

申请号：US16949887

申请日：2020-11-19

申请人： 3M INNOVATIVE PROPERTIES COMPANY

发明人： Garry J. Walker ,  Mark A.J. Fernandes ,  Richard D. Williams

IPC分类号： A62B17/04

摘要： A respirator system is disclosed that includes a foldable head cover assembly including a face seal portion. The respirator assembly further includes a visor assembly attached to the head cover assembly and a head suspension system removably attached to the visor assembly. The visor assembly and the head cover assembly on one hand, and the suspension system on the other, are separable and foldable to enable storing and/or shipping the same separately. A head suspension system is also disclosed.