Loudspeaker structure

Details Loudspeaker structure Loudspeaker structure

1985-03-08

1989-07-25

Fuller, Benjamin R.

Acoustics

Plural diaphragm sound sources

181146, 181150, 181151, 181152, 181153, 181155, 181156, 181159, 181199, 381156, 381158, 381160, H05K 500

Patent

active

048504521

ABSTRACT:
One or more up-firing woofer loudspeakers (12 or 22) are mounted atop a truncated pyramidal enclosure (1 or 21). A down-firing tweeter (5 or 25) is aligned above the woofer. A sound-reflecting sphere (4 or 24) is disposed between the woofer and the tweeter. When the sphere is aligned there-between omni-directional sound is radiated in both horizontal and vertical planes. When the sphere is positioned to the rear, a medium to high frequency forward hemispherical pattern is obtained. This pattern is desirable when the loudspeaker structure is positioned against a wall. Duct ports (3) or a folded horn (20) within the enclosure enhance very low frequency sound.

REFERENCES:
patent: 2065357 (1936-12-01), Evans
patent: 2218212 (1940-10-01), Nassos
patent: 2224919 (1940-12-01), Olson
patent: 3819006 (1974-06-01), Westlund
patent: 4176730 (1979-12-01), Mushkin
patent: 4200120 (1980-04-01), Williams, Jr.
patent: 4357490 (1982-12-01), Dickey

Affiliated with

Also associated with

Rating

Loudspeaker structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Loudspeaker structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Loudspeaker structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2351251