Swiveling sound-gathering ear guard for masks and helmets
View Patent ↗A portion of a mask or helmet covering a user's ear has an aperture covered by a sound-collecting and sound-transmissive protector swivelingly mounted thereon. The protector has a substantially parabolic reflector surface oriented substantially perpendicular to the protector's axis of rotation which magnifies sounds arriving from a particular angular direction and directs the sound through a plurality of holes axially penetrating through the protector from an outer to an inner surface. A user manipulable actuator nib extends axially outwardly from a peripheral portion of the outer surface of the protector allowing user control of swiveling movement.
1. A sound transmissive ear protector for protective headgear, said protector comprises:
a body having an outer surface and an inner surface;
said body being shaped to have a plurality of holes extending from an outer surface of said body to an inner surface of said body; and
means for directing sound from a first direction toward said holes;
wherein said means comprise a reflector structure extending from said body and having a portion in an orientation substantially parallel to said outer surface;
wherein a diameter of each of said holes is inversely proportional to its distance from said reflector.
2. A sound transmissive ear protector for protective headgear, said protector comprises:
a body having an outer surface and an inner surface;
said body being shaped to have a plurality of holes extending from an outer surface of said body to an inner surface of said body; and
means for directing sound from a first direction toward said holes;
wherein said means comprise a reflector structure extending from said body and having a portion in an orientation substantially parallel to said outer surface;
wherein said reflector is shaped to have a first surface extending to axially cover over a first subset of said plurality of holes.