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US 8,265,320 B2Granted
Loudspeaker
AssigneeStar Headlight & Lantern Co., Inc.
InventorsR. Michael Datz, James J. Cronmiller
Life of this patent
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AssigneeStar Headlight & Lantern Co., Inc.
InventorsR. Michael Datz, James J. Cronmiller
Estimating the term…
A loudspeaker for projecting siren and other warning signals which is compact to facilitate installation in emergency vehicles, and which provides a horn projector in the compact space. The loudspeaker has a support in which an electrically driven driver unit is mounted. A chamber providing a plurality of cyclonic or spiral paths for sound from the speaker is located at one end of the support as by being connected to the support or being a part thereof. The support has a plurality of passageways for sound from each of the paths to exit ports at an end of the support opposite to the end thereof attached to or having the chamber. The cyclonic paths and the passageways are of like length and taper so that the sound from the exit ports combined in reinforcing relationship and projects outwardly from the exit port end of the support. The support provides a recombiner for the sound propagating along the cyclonic paths and passageways to provide the effect of a long horn in the compact space.
A loudspeaker comprising a member providing a support for a sound producing driver, a plurality of passageways in said member around said driver and extending to exit ports, and said member having at an end thereof opposite to the end at which said exit ports are disposed a structure for delivering sound from said driver in a plurality of paths, each corresponding to a different one of said exit ports, said paths each communicating with a different one of said plurality of passageways, and wherein said structure contains a plurality of cyclonic plenums having input ends which divide sound from said driver into said plenums, said plenums having exit ends in communication with said passageways.
A horn loudspeaker comprising:
A method for producing sound from a sound producing driver of a loudspeaker comprising the steps of:
A loudspeaker comprising a member providing a support for a sound producing driver, a plurality of passageways in said member around said driver and extending to exit ports, and said member having at an end thereof opposite to the end at which said exit ports are disposed a structure for delivering sound from said driver in a plurality of paths, each corresponding to a different one of said exit ports, said paths each communicating with a different one of said plurality of passageways, and wherein said support and said structure are provided by a cup in which said driver is received, said cup having a base and a wall, a housing similarly cup shaped with a wall and a base, said housing wall and base having regions conforming to the wall and base of said cup and receiving said cup therein, and said housing having ducts between said regions, portions of said ducts being closed by said wall of said cup to define said passageways and being closed by said base of said cup to provide said paths.
Dependencies are inferred from the claim text.