Abstract: An ear tip is disclosed that comprises an annular flange having a first end tapering downwardly to a second end and having a teardrop curve lateral cross section running from approximately the upper end to the lower end. An inner body extends internally from the upper end within a hollow interior defined by the flange toward the lower end. An acoustic channel extends through the inner body. The flange at least partially occludes an ear canal from ambient noise and creates at least a partial air seal in the ear canal and the acoustic channel is configured to allow the passage of sound into the ear canal when the inner body is connected with a sound source.

Abstract: An ear tip is disclosed that comprises an annular flange having a first end tapering downwardly to a second end and having a circular lateral cross-section. The annular flange is defined by a plurality of sections and each section has a varying wall thickness. An inner body extends internally from the first end within a hollow interior defined by the annular flange toward the second end. An acoustic channel extends through the inner body, where the annular flange at least partially occludes an ear canal from ambient noise and creates at least a partial air seal in the ear canal and the acoustic channel is configured to allow the passage of sound into the ear canal when the inner body is connected with a sound source.

Abstract: An earphone is disclosed that is used in connection with reproducing audio sounds that are supplied from an audio-frequency source. The earphone includes a housing that includes a boot assembly positioned in the housing. A first audio driver is positioned in the boot assembly such that a first output of the first audio driver is in acoustic communication with a mixing chamber. A second audio driver is also positioned in the boot assembly such that a second output of the second audio driver is in acoustic communication with a chamber in the boot assembly. A tubular needle is positioned in the boot assembly having a first end in acoustic communication with the chamber and a second end in acoustic communication with the mixing chamber.

Abstract: An improved ear tip for earphones and hearing protection is provided where comfort and occlusion of the ear are of most importance. The ear tip comprises an elastomer polymer resin material molded to form the material to the shape of the ear canal. A chamber is defined having a proximal and distal end, the distal end engages the acoustic exit of the transducer, sound source or sound attenuator and the proximal end of the bore is adapted to be disposed adjacent an eardrum. The inner body attaches to a nozzle, or audio playback orifice to naturally transition the acoustics from the transducer or sound attenuator to the eardrum via the ear canal. The ear tip can have a plurality of flexible annular flanges disposed at spaced intervals of the body with decreasing circumference as the flanges transition to the proximal end. Each flange tapers in a radius or curvilinear geometry as it progresses to the end of the object.

Abstract: A balanced armature apparatus is disclosed that includes dual transducers for generating sound waves in response to electric audio signals. The dual transducers include a motor assembly coupled to a diaphragm. A housing defines an interior chamber and the motor assembly and the diaphragm are positioned within the interior chamber. A pair of acoustic output ports is located in a respective end of the housing. A low pass acoustic filter is in communication with one of the acoustic output ports that is operable to attenuate a predetermined range of frequencies from an audio signal produced by one of the diaphragms.