Non-roll foam eartip

Abstract

Embodiments disclose a non-roll foam EarTip that may provide for fingertip press-in insertion, improved comfort, simplicity of use, flatter attenuation and / or improved hygienic properties, by way of non-exclusive example. A hollow foam body typically encompasses a shorter stem of more rigid material, and in some embodiments the foam body has a tighter skin on the inner and outer surfaces. In some embodiment, the EarTip is an earplug formed of polyurethane foam with a dense skin on the inner and outer surfaces of the hollow body, and having a plurality of splines in the cavity.

Description

[0001] Cross References to Related Applications [0002] This application is related to and claims priority under 35 USC § 119 of co-pending U.S. Provisional Patent Application Serial No. 61 / 183,872, entitled "Non-Roll Foam Earplug," filed June 3, 2009, which is fully incorporated by reference into In this text, as if reproduced as a whole. [0003] Statement Regarding Federally Sponsored Research and Development [0004] Not applicable. [0005] References to the Microfiche Addendum [0006] Not applicable. technical field [0007] The disclosed embodiments may relate generally to hearing protection devices, and more specifically to non-rolldown, press-fit earplugs. Embodiments may also relate to other EarTips, especially those with sealing and / or sound-attenuating portions. Background technique [0008] In very noisy environments, workers often wear earplugs or other hearing protection designed to have a high noise blocking capability (such as a Noise Reduction Rating...

AI Technical Summary

Problems solved by technology

In fact, the extended handle may also come into direct contact with external objects as it protrudes from the user's ear, making it difficult to use with some hats, helmets, glasses, etc. and creating a safety risk as external objects may inadvertently contact the handle and drives the earbud too deep into the ear canal

Additionally, the extended handle tends to create a certain level of resonance which can negatively impact the sound attenuating properties of these earplugs (the handle acts like a tuning fork)

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