| Patent Number |
Title Of Patent |
Date Issued |
| D317450 |
Loudspeaker |
June 11, 1991 |
|
| D254491 |
High frequency loudspeaker |
March 18, 1980 |
|
| D253819 |
Low frequency loudspeaker |
January 1, 1980 |
|
| D253700 |
Midrange frequency loudspeaker |
December 18, 1979 |
|
| 5000286 |
Modular loudspeaker system |
March 19, 1991 |
| A modular loudspeaker system of uniformly sized and shaped loudspeaker modules permits hanging of a plurality of the modules in a wide variety of desired configurations. Each module has a pair of side walls with recessed upper and lower marginal edge portions and an integrally formed rei |
| 4387786 |
Anechoic chamber arrangement |
June 14, 1983 |
| An anechoic chamber having a rotatable corner in the nature of a rotating door which permits the selection of a desired one of four right angle corners to be introduced into operative engagement with the room. In the use of the anechoic chamber, with a selected corner in position facing |
| 4237340 |
Crossover network for optimizing efficiency and improving response of loudspeaker system |
December 2, 1980 |
| A small dimension low frequency loudspeaker has a folded exponential horn which provides a unitary curved sound path from an electroacoustic transducer at the throat of the horn to a volume into which sound is radiated at the mouth of the horn. The length of the horn is such that, at |
| 4210223 |
Low frequency folded exponential horn loudspeaker apparatus with bifurcated sound path |
July 1, 1980 |
| A low frequency loudspeaker apparatus includes a folded exponential horn which is divided to provide a bifurcated curved sound path from at least one electroacoustic transducer that is positioned at the throat of the horn to a volume into which sound waves are radiated that is located at |
| 4138594 |
Small dimension low frequency folded exponential horn loudspeaker with unitary sound path and lo |
February 6, 1979 |
| A small dimension low frequency loudspeaker has a folded exponential horn which provides a unitary curved sound path from an electroacoustic transducer at the throat of the horn to a volume into which sound is radiated at the mouth of the horn. The length of the horn is such that, at |
