Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Plural or compound reproducers
Reexamination Certificate
2011-06-21
2011-06-21
Kuntz, Curtis (Department: 2614)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Plural or compound reproducers
C381S328000, C181S130000, C181S135000
Reexamination Certificate
active
07965855
ABSTRACT:
Apparatuses and methods for delivering sound to ear canal are provided. The apparatus generally includes a compressible and resilient toroidal section having an inner side and an outer side. An aperture extends from the outer side to the inner side and the outer side has a well disposed within an inner side surface about the aperture. The apparatus further includes a compressible and resilient spout integrated with the toroidal section and extending away from the inner side. The spout includes a channel disposed within an inner spout surface and the channel is coupled to the well.
REFERENCES:
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patent: 4443668 (1984-04-01), Warren
patent: 5659156 (1997-08-01), Mauney et al.
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patent: 7107993 (2006-09-01), Magidson
patent: 2006/0067556 (2006-03-01), Bailey et al.
patent: 2006/0093176 (2006-05-01), McIntosh et al.
Plantronics Inc., OmniSet User's Guide, Aug. 1988, USA.
Intellectual Property Law Office of Thomas Chuang
Kuntz Curtis
Plantronics Inc.
Robinson Ryan
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