US Patent No. 10,536,764


Patent No. 10,536,764
Issue Date January 14, 2020
Title Integrating Wax Guards Into Earphone Ear Tips
Inventorship Brian David Beaudoin, Medway, MA (US)
Benjamin N. Davies, Northborough, MA (US)
Daniel K. Lee, Framingham, MA (US)
Michael Andrew Zalisk, Arlington, MA (US)
Assignee Bose Corporation, Framingham, MA (US)

Claim of US Patent No. 10,536,764

1. An ear tip for an earphone, comprising:an interior mating surface for attaching the ear tip to the earphone, the interior mating surface at least partially surrounding a cavity where the earphone will be located when the ear tip is so attached,
an outer surface including features corresponding to human ear anatomy,
a nozzle extension providing a passageway from the interior cavity to space outside the ear tip,
a wax guard in the nozzle extension, the wax guard blocking the passageway, and
a plurality of holes through the wax guard, the holes sized and arranged to allow sound to pass along the passageway, while inhibiting ear wax from passing along the passageway,
wherein the holes are tapered in diameter along their extent through the wax guard, having narrower ends on a surface of the wax guard facing out of the passageway and wider ends on a surface of the wax guard facing towards the cavity.