公开(公告)号：US20230001241A1

公开(公告)日：2023-01-05

申请号：US17844223

申请日：2022-06-20

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Darrill L. Plummer ,  William E. Parson ,  William K. Shaffer

IPC: A62B9/04 ,  A62B7/02

Abstract: A reducer for a self-contained breathing apparatus (SCBA), comprising a primary air pathway with a primary metering valve and a secondary air pathway with a secondary metering valve. The reducer has an Emergency Breathing Support System (EBSS) outlet that is fluidly connected to a branch line of the secondary air pathway.

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.