The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 2020
Filed:
Jun. 29, 2017
3m Innovative Properties Company, St. Paul, MN (US);
Van Cuong Bui, Jököping, SE;
Anton J. Hjalmarsson, Bredaryd, SE;
Roger Kihlberg, Värnamo, SE;
Yossi Sivilia, Ginaton, IL;
Sahar Fisch, Arad, IL;
Semion Dorfman, Beer Sheva, IL;
Guy Shmuel Melamed, Beer Sheva, IL;
Beylem Cindo{hacek over (g)}lu, Ankara, TR;
Abir Nagia, Gurgaon, IN;
Yuchun He, Hengyang, CN;
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A method of retrofitting a hearing protector with an active communication device. The method has steps of providing a hearing protector, providing the active communication device and retaining the active communication device at the hearing protector. Further, a hearing protector is provided having two generally dome-shaped earmuffs, an active communication device comprising a loudspeaker and electronic circuitry which comprises a wireless communication interface, and wherein the active communication device has a mounting ring that is retained between an outer shell and a cushioning of the earmuff.