公开(公告)号：US20200238110A1

公开(公告)日：2020-07-30

申请号：US16639019

申请日：2018-10-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Darrill L. Plummer ,  Robert D. Williams ,  Jhansi R. Arikatla ,  Elliott Chase Miller ,  Joseph S. Toro ,  Jason R. Cannon

IPC: A62B9/04 ,  A62B25/00

Abstract: A support assembly for a self-contained breathing apparatus includes a back frame for supporting the self-contained breathing apparatus on a user's back, the back frame having upper and lower regions, a waist pad removably attached to the lower region of the back frame, and a first elongate securing member arranged to removably secure the back frame to the waist pad, wherein the first elongate securing member is configured to allow the waist pad to move within a predetermined range of motion with respect to the back frame.

公开(公告)号：US20220241619A1

公开(公告)日：2022-08-04

申请号：US17610222

申请日：2020-04-30

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Robert Kyle Fullerton ,  Silvia Geciova-Borovova Guttmann ,  Robert D. Williams ,  Scott M. Purrington ,  Jhansi R. Arikatla

IPC: A62B7/02 ,  A62B17/04 ,  A62B9/00 ,  A62B17/00

Abstract: A breathing system hood assembly that fits over a user's head includes an air impermeable hood having an opening dimensioned to fit over the user's head and an elastically deformable neck seal arranged along at least a portion of the opening. The neck seal includes a region wherein the neck seal is arranged in overlapping relation with itself, whereby the neck seal can expand to fit over a user's head and contract to create a seal with the user's neck.