Patent · US Active

Narrow mouth horn loudspeaker

US8953831B2 · kind B2 · utility

3Cited by

8References

17Claims

0Family size

Assignee

Bose Corporation · US

Inventors

Joseph Jankovsky · Holliston, US
Sarah Margaret Heile · Marlborough, US
John H. Wendell · Boston, US

Key dates

Filing date	Sep 28, 2012
Grant date	Feb 10, 2015
Priority date	—
Expiry date	Oct 19, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04R1/345
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An acoustic horn. In one implementation, the horn includes at least four wall sections, defining a passageway. The cross-sectional area of the mouth is at least ten times the cross sectional area of the throat. The wall sections are dimensioned so that at least one wall section has a dimension at the throat at least ten times a dimension at the throat of a second wall section. In another implementation the cross-section at the mouth is elongated and is be bounded by a continuous curve defining a geometric figure having a major axis at least ten times a minor axis.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.