公开(公告)号：US20250135489A1

公开(公告)日：2025-05-01

申请号：US18714944

申请日：2022-12-07

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andrew R. Henry ,  Sabeel Ullah ,  Paul H.R. Jolly ,  Neale F. GRIFFITHS

IPC: B05C17/005 ,  B05C17/01 ,  F04B13/00 ,  F04B43/12

Abstract: A system for dispensing an adhesive, the system including a chamber that holds at least two flexible containment vessels, the at least two flexible containment vessels holding at least a part 1 and a part 2; and at least two adhesive delivery channels, a first adhesive delivery channel connected to the containment vessel to receive part 1 and a second adhesive delivery channel connected to the containment vessel to receive part 2; a 10 motor; at least a first variable positive displacement pump wherein the first variable positive displacement pump is actuated by the motor; and a mixing tip designed to receive part 1 and part 2 from the at least two adhesive delivery channels, mix at least part 1 and part 2 together and dispense the adhesive through a dispensing end.

公开(公告)号：US20220360884A1

公开(公告)日：2022-11-10

申请号：US17621438

申请日：2020-06-23

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Sebastian Eggert-Richter ,  Michael H. Stalder ,  Christian Weinmann ,  Benhard C. Schneider ,  Paul H.R. Jolly

IPC: H04R1/10 ,  H04W4/029

Abstract: A hearing protection device is provided. The hearing protection device includes a first earmuff connected to a second earmuff by a headband. Each of the first and second earmuffs are configured to dampen ambient sound. The hearing protection device also includes an antenna, located within a housing of the first earmuff. The antenna comprises a rigid portion coupled to a flexible portion. Both the rigid portion and the flexible portion are fixed within the housing. The flexible portion is configured to remain substantially in line with a ground plane with respect to the rigid portion.