公开(公告)号：US20250134213A1

公开(公告)日：2025-05-01

申请号：US18913178

申请日：2024-10-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Judge W. Morgan, III ,  Jeffrey S. Vogus ,  Ashok Vellaiah Retnaswamy ,  Daniel T. Grosse

IPC: A44B11/00 ,  A62B18/08

Abstract: The present disclosure provides a buckle for adjustably connecting a strap extending from a head harness of a respirator to a mask of the respirator. The buckle includes a main body defining a first end, a second end opposing the first end, and a longitudinal axis extending along a length of the main body from the first end to the second end. The main body includes a first body portion extending from the first end. The first body portion includes a first major surface and a second major surface opposing the first major surface. The main body further includes a second body portion and a plurality of serrations extending from the first major surface and spaced apart from each other with respect to the longitudinal axis. The buckle further includes a ring including a first ring portion and a second ring portion opposing the first ring portion.