Folded coaxial transmission line loudspeaker
OwnerPeter M. Bouvierinventor
Life of this patent
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Abstract
A loudspeaker has a loudspeaker driver and a first tube having a base end coupled to the driver and extending towards the rear end of the loudspeaker. A second tube of larger cross sectional dimensions extends over the first tube and loudspeaker driver and has a rear end wall spaced from the open rear end of the second tube and a front end coupled to the driver. A third, open ended tube of smaller cross-sectional dimensions than the first tube extends through a rear end wall of the second tube and into the first tube, with the front end of the third tube spaced from the base of the first tube. A folded, three segment transmission line is formed between the first and second tubes, between the second and third tubes, and through the third tube.
Claims10
A loudspeaker, comprising:
- a loudspeaker driver having a front face at a front end and a base opposite the front face at a rear end of the driver;
- a first tube having a first end secured to the base of the loudspeaker driver and having an open end opposite the first end;
- a cover having a first end in which the driver is mounted, extending beyond the rear end of the driver and surrounding the first tube;
- and
- whereby a segment of a transmission line is defined by the gap between the first tube and the cover.
A loudspeaker, comprising:
- a loudspeaker driver having a front end and a base opposite the front end;
- a cover having a first end in which the driver is mounted, extending beyond the base of the driver;
- a first tube within the cover, having a first end secured to the base of the loudspeaker driver and having an open end opposite the first end and not supported by the cover;
- and
- whereby successive segments of a transmission line are defined by the gap between the first tube and the cover and by the space within the first tube.
Dependencies are inferred from the claim text.