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Next-Generation Ear Seals for Circumaural Headsets and Hearing Protectors

Award Information
Agency: Department of Defense
Branch: Defense Health Program
Contract: W81XWH-18-C-0016
Agency Tracking Number: H172-007-0025
Amount: $149,580.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: DHA172-007
Solicitation Number: 2017.1
Solicitation Year: 2017
Award Year: 2018
Award Start Date (Proposal Award Date): 2018-03-26
Award End Date (Contract End Date): 2018-10-25
Small Business Information
615 Hale Ave N
Oakdale, MN 55128
United States
DUNS: 797519808
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Tadd Swanlund
 (651) 797-7309
Business Contact
 Christopher S Hudson
Phone: (651) 797-7322
Research Institution

The objective of this proposal is to demonstrate the feasibility of producing molded polyurethane viscoelastic foam ear seals with an integral skin, that we call Contoured Foam Pads (CFPs). These CFPs will have a surface profile that has targeted conformability around obstacles that results in an improved acoustic seal around eyeglasses from the military Approved Protective Eyewear List (APEL) and improves the attenuation over the stock ear seal for three commonly used military communication headsets/helmets (the Gentex HGU-56/P Helmet, MSA-Sordin Supreme Pro-X Ear Muff, and David Clark Model H10-13.4 Aviation Headset). These CFPs will be based off currently existing Comply foam technology from Hearing Components that has shown an increase in attenuation over stock Gentex and MSA ear seals, especially in the low frequency. This will serve as a solid platform for further work toward this objective. In addition, our pilot scale production equipment, in-house foam formulation and acoustic testing resources will allow rapid development of functional prototypes.

* Information listed above is at the time of submission. *

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