Multiple driver electroacoustical transducing
Patent 5309518 Issued on May 3, 1994. Estimated Expiration Date: 
October 15, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 15, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3241631 Full range rotatable speaker housing with oppositely directed speakers Patent #: 4054750 InventorsAssigneeApplicationNo. 961397 filed on 10/15/1992US Classes:381/336, Curved or angled housing181/144, PLURAL DIAPHRAGM SOUND SOURCES381/182, Plural or compound reproducers381/335, Plural diaphragms, compartments, or housings381/345Acoustic enclosureExaminersPrimary: Isen, Forester W.Assistant: Le, Huyen Attorney, Agent or FirmForeign Patent References
International ClassH04R 025/00AbstractA loudspeaker system has a number of loudspeaker driver assemblies operative over a number of octaves in the audio frequency range. Support structure supports the loudspeaker driver assemblies in fixed substantially contiguous relationship substantially along an arcuate surface with each of the driver assemblies oriented in a prescribed direction and coacting to illuminate with sound a predetermined solid angle centered at the loudspeaker system substantially uniformly over said number of octaves. | |
