公开(公告)号：US11173069B2

公开(公告)日：2021-11-16

申请号：US16471844

申请日：2017-12-14

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Caitlin E. Meree ,  James P. Endle ,  Joshua M. Fishman ,  Hannah L. Mathers ,  Travis L. Potts ,  Joseph D. Rule ,  Richard J. Webb ,  Caroline M. Ylitalo

IPC: A61F11/08

Abstract: A hearing-protective earplug (1) with a resilient polymeric foam body (10) and with a grippable stem (110) that includes a forward portion (111) with an annular sleeve (112) that at least partially defines an open-ended, front-facing cavity (114) within which a rearward portion (21) of the resilient polymeric foam body resides.