Switchable hearing protection ear plug

摘要

The present invention is a switchable hearing protection ear plug. In one position, the ear plug provides substantial sound attenuation and hearing protection. In the second position, an opening in the ear plug permits sounds to enter the ear of the user relatively unobstructed. A deformable barrier in an interior chamber of the ear plug controls the passage of sound through the ear plug.

主权项

1. A hearing protection ear plug comprising:
a base end, a portion of which is adapted to fit in the ear of a user, an interior chamber, at least one opening passing through the base end into the interior chamber, at least one opening passing from the interior chamber to an exterior of the ear plug, and a substantially spherical deformable barrier within the interior chamber wherein when said deformable barrier is in a substantially deformed state sound does not pass from said at least one opening passing through the base end into the interior chamber through the interior chamber to the said at least one opening passing from the interior chamber to an exterior of the ear plug, and when said deformable bather is in a less deformed or un-deformed state, sound passes from said at least one opening passing through the base end into the interior chamber through the interior chamber to the said at least one opening passing from the interior chamber to an exterior of the ear plug.