公开(公告)号：US11937043B2

公开(公告)日：2024-03-19

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

CPC classification number: H04R1/1083 ,  H04R1/1008 ,  H04W4/029 ,  H04R2420/07

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.

公开(公告)号：US20200030938A1

公开(公告)日：2020-01-30

申请号：US16488300

申请日：2018-02-28

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Orlin B. Knudson ,  Rufus C. Sanders ,  Joseph B. Eckel ,  Bradley M. Johnson ,  Karl M. Kropp ,  Richard L. Rylander ,  David H. Redinger ,  Ronald D. Jesme ,  Andrew R. Henry ,  Theo L. Simon ,  Paul H. R. Jolly ,  Justin Tungjunyatham ,  Marc A. Egeland ,  Michael W. Dolezal ,  Adam C. Nyland

IPC: B24B49/14 ,  B24B49/00 ,  B24B23/02 ,  B24B23/06 ,  B24D7/00 ,  B24D9/00 ,  B24D11/00 ,  G01M5/00

Abstract: A computing system may send and receive data from a variety of other devices, such as abrading tools and consumable abrasive products. The computing system may use this data for various purposes, such as tracking worker vibration dosage, monitoring inventory, promoting use of personal protective equipment, and other purposes.

公开(公告)号：US20200030936A1

公开(公告)日：2020-01-30

申请号：US16488303

申请日：2018-02-28

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Orlin B. Knudson ,  Rufus C. Sanders ,  Joseph B. Eckel ,  Bradley M. Johnson ,  Karl M. Kropp ,  Richard L. Rylander ,  David H. Redinger ,  Ronald D. Jesme ,  Andrew R. Henry ,  Theo L. Simon ,  Paul H. R. Jolly ,  Justin Tungjunyatham ,  Marc A. Egeland ,  Michael W. Dolezal ,  Adam C. Nyland

IPC: B24B49/00 ,  B24B23/02 ,  G01M5/00

Abstract: A computing system may send and receive data from a variety of other devices, such as abrading tools and consumable abrasive products. The computing system may use this data for various purposes, such as tracking worker vibration dosage, monitoring inventory, promoting use of personal protective equipment, and other purposes.