Loudspeaker system
March 2, 2003. 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 2808121 2975852 3729061 Loudspeaker cabinet having an integrally constructed horn Critical alignment loudspeaker system Small dimension low frequency folded exponential horn loudspeaker with unitary sound path and loudspeaker system including same Pivoted loudspeaker enclosure with visual indicator of optimum listening position Speaker system which inverts and redirects the speaker backwave Loud-speaker Patent #: 4391346 InventorApplicationNo. 06/471495 filed on 03/02/1983US Classes:181/152, With horn181/147, Three diaphragms181/156, Reflex baffle181/159With hornExaminersPrimary: Hix, L. T.Assistant: Brown, Brian W. Attorney, Agent or FirmInternational ClassH04R 1/28 (20060101)AbstractA loudspeaker system has an elliptical stepped mid-range horn above and coplanar with a flared mid-bass horn having disposed therein a pair of tweeters on sidewalls thereof and a woofer in a backwall thereof. The back of the woofer communicates with a folded low frequency bass horn such that low frequency response is loaded from the rear of the diaphram for the woofer driver, thereby eliminating the necessity for further amplification and drivers to obtain fidelity in low frequency response. The low frequency bass section defines a convoluted path for the sound which comes from the interior structure of a folded horn thus creating an acoustical boost for low frequency sound. | |
