公开(公告)号：AU2022238900B2

公开(公告)日：2024-12-12

申请号：AU2022238900

申请日：2022-03-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： HUANG YI-CHI ,  ELY JACOB ,  THOMAS RAVI

IPC: H01M50/247 ,  H01M50/262 ,  H01M50/502 ,  H01M50/503 ,  H01M50/519 ,  H01M50/562 ,  H01R13/627 ,  H02J7/00

Abstract: A battery-powered system includes a device and a battery. The device includes a recess for receiving the battery and an electrical contact disposed at the bottom of the recess. The device includes front and back guide elements and a spacer with a raised portion and a ramp. The battery has front and back guide elements constructed to mate with corresponding front and back guide elements of the device such that when the guide elements are mated, the battery is in a locked position. A battery electrical contact is disposed along the device-facing major surface, constructed to operatively couple with the device electrical contact. The spacer is constructed to reduce wear and damage to the electrical contacts by reducing contact with the electrical contacts while the battery is moved long the spacer.

公开(公告)号：AU2018326831B2

公开(公告)日：2020-07-02

申请号：AU2018326831

申请日：2018-08-30

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： ELY JACOB ,  TEETERS KENNETH F ,  COFFIN ROBERT C ,  CAI FENG

IPC: A61F11/08 ,  B29C65/02

Abstract: An earplug assembly includes a first earplug, a second earplug, and a cord including a first end, a second end, each earplug including a stem and a sound attenuating body. A method for preparing the earplug assembly includes attaching the first and second ends of the cord to the first and second earplugs, respectively, by contacting a hot tip to the proximal end of the stem of the earplug to form an attachment point, removing the hot tip, and contacting or inserting the end of the cord to the attachment point to thermally bond the end of the cord to the stem of the earplug.