US 9,813,807 B2
Ear-canal earpiece
Heinz Epping, Hildesheim (DE)
Assigned to Sennheiser electronic GmbH & Co. KG, Wedemark (DE)
Filed by Sennheiser electronic GmbH & Co. KG, Wedemark (DE)
Filed on Dec. 11, 2015, as Appl. No. 14/966,040.
Claims priority of application No. 10 2014 225 923 (DE), filed on Dec. 15, 2014.
Prior Publication US 2016/0212529 A1, Jul. 21, 2016
Int. Cl. H04R 3/00 (2006.01); H04R 1/10 (2006.01); H04R 1/34 (2006.01); H04R 7/26 (2006.01); H04R 1/28 (2006.01); H04R 25/00 (2006.01)
CPC H04R 3/002 (2013.01) [H04R 1/1016 (2013.01); H04R 1/2857 (2013.01); H04R 1/345 (2013.01); H04R 7/26 (2013.01); H04R 1/1075 (2013.01); H04R 25/652 (2013.01); H04R 25/654 (2013.01); H04R 2460/09 (2013.01); H04R 2460/11 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An ear canal earpiece comprising:
an electroacoustic sound transducer;
a sound guide unit having a first and a second end for guiding a sound from the electroacoustic sound transducer to an ear of a user;
a canal having a first end open towards the ear and a second outwardly open end; and
an oscillatable diaphragm which has a closed surface and which extends substantially over the entire cross-section of the canal,
wherein the oscillatable diaphragm constantly seals off a volume defined by an ear canal of a user and at least one portion of the sound guide unit.