US 12,168,468 B2
Railcar acoustic monitoring system and method of use
James R. Bilodeau, Loveland, CO (US); John D. Ritchey, Loveland, CO (US); Eric C. Sprengle, Loveland, CO (US); and Jody Lutz, Loveland, CO (US)
Assigned to VOESTALPINE SIGNALING USA INC., Loveland, CO (US)
Filed by VOESTALPINE SIGNALING USA INC., Loveland, CO (US)
Filed on Oct. 16, 2023, as Appl. No. 18/380,367.
Application 18/380,367 is a continuation of application No. 17/069,999, filed on Oct. 14, 2020, granted, now 11,787,454.
Application 17/069,999 is a continuation of application No. 16/555,650, filed on Aug. 29, 2019, granted, now 10,864,930, issued on Dec. 15, 2020.
Claims priority of provisional application 62/725,076, filed on Aug. 30, 2018.
Prior Publication US 2024/0109571 A1, Apr. 4, 2024
Int. Cl. B61L 27/53 (2022.01); B61K 9/08 (2006.01); B61L 1/06 (2006.01); G01B 17/04 (2006.01); H04R 29/00 (2006.01)
CPC B61L 27/53 (2022.01) [B61K 9/08 (2013.01); B61L 1/06 (2013.01); G01B 17/04 (2013.01); H04R 29/005 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A microphone assembly comprising:
an outer housing comprising an outer surface, an inner surface opposite the outer surface and defining an opening there through, and a plurality of attachment structures protruding from the inner surface thereof;
an inner housing comprising an outer surface, an opening, and a plurality of attachment structures protruding from the outer surface thereof;
a printed circuit board (PCB) comprising at least one micro-electromechanical systems (MEMS) microphone comprising an acoustic port, the PCB coupled to the inner housing such that the acoustic port of the at least one MEMS microphone is positioned within the opening; and
a cord interwoven between the attachment structures of the outer and inner housings to interconnect the attachments structures of the outer and inner housings, respectively, together, the cord vibrationally isolating the inner housing from the outer housing.