Patent EP0382526A2 successfully refreshed from Google Patents.
US4200170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyramid speaker assembly
Assignee: Individual
•
Filing: 1977-08-29
•
Granted: 1980-04-29
•
Expires: 1997-08-29
Abstract
Abstract A speaker assembly comprising a first cabinet or housing of a pyramidal configuration having a speaker element mounted therein in such a manner that the sound emitting from the speaker is concentrated in a direction outwardly of the pyramid, and a second housing of pyramidal configuration disposed in spaced relation to the speaker element whereby the sound emitting therefrom is directed against the walls of the second pyramid to provide a complete sound emission from the assembly through three hundred and sixty degrees.
Inventors
- 👤 John H. Williams, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:28
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/32; H04R1/34; H04R1/345; H04R1/22; H04R1/28; H04R1/2869; H04R1/2876; H04R1/288
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
141 words
A speaker assembly comprising a base member having one end thereof open and an aperture provided in the opposite end thereof, a pyramidal shaped housing member secured to the base member in the proximity of the aperture and having one end closed and the opposite end open to the aperture, a second base member secured in spaced relation to the first base member whereby the housing member is interposed therebetween, said second base member having apertures provided in the opposite ends thereof, a second housing member secured to the outer end of the second base member in the proximity of the respective aperture therein and having one end closed and the opposite end open to said respective aperture, and speaker means secured to the inner end of the second base member and disposed in the aperture of said inner end thereof.
Claim 2
Dependent Claim
141 words
A speaker assembly comprising a base member having one end thereof open and an aperture provided in the opposite end thereof, a pyramidal shaped housing member secured to the base member in the proximity of the aperture and having one end closed and the opposite end open to the aperture, a second base member secured in spaced relation to the first base member whereby the housing member is interposed therebetween, said second base member having apertures provided in the opposite ends thereof, a second housing member secured to the outer end of the second base member in the proximity of the respective aperture therein and having one end closed and the opposite end open to said respective aperture, and speaker means secured to the inner end of the second base member and disposed in the aperture of said inner end thereof.
Claim 3
Dependent Claim
28 words
The assembly of claim 1 wherein the interior of said second pyramidal housing is exposed towards said speaker through said open end and includes sound absorbing material therein.
Claim 4
Dependent Claim
43 words
The assembly of claim 1 including at least one additional speaker supported between said first and second housings such that its directional axis is parallel to the directional axis of said main speaker and in alignment with a ridge of said pyramidal housing.
Claim 5
Dependent Claim
15 words
The assembly of claim 1 including a plurality of axially stacked assemblies of claim 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-29 | 1983-10-29 | 1984-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-29 | 1987-10-29 | 1988-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-29 | 1991-10-29 | 1992-04-29 | $7700.00 | Window Closed / Lapsed |