Patent US4574906A successfully refreshed from Google Patents.
US4574906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Outdoor speaker
Assignee: AUDIO POTENTIALS Corp
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Filing: 1984-11-15
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Granted: 1986-03-11
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Expires: 2004-11-15
Abstract
Abstract A loudspeaker assembly for use outdoors is disclosed. A woofer speaker is secured in a housing for the downward projection of sound through a generally continuous circumferential aperture between the housing and base. A tweeter is mounted coaxially with the woofer for the projection of sound downwardly thereby providing for the omnidirectional projection of sound from the speaker assembly.
Inventors
- 👤 Jeffrey N. White
- 👤 Kenneth R. Reichel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:08
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/22; H04R1/26; H04R1/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
158 words
A speaker assembly for use outdoors, including a housing, at least two speaker cones, and a base, said housing being impervious to moisture and generally resistant to the effects of weather, said housing being secured in spaced relationship to a base, said base and said housing thereby defining a circumferential aperture for the passage of sound, said speaker cones including a woofer speaker and a tweeter; said woofer speaker mounted in the lower end of said housing thereby forming an internal chamber below said woofer speaker and between said housing and said base, said woofer speaker being positioned for the downward projection of sound; said tweeter secured to said base coaxial and in close juxtaposition with said woofer speaker and positioned for the downward projection of sound through said internal chamber and out said circumferential apperture; whereby sound from said woofer speaker and said tweeter emanates from said speaker assembly in an omnidirectional manner and free from distortion.
Claim 2
Dependent Claim
158 words
A speaker assembly for use outdoors, including a housing, at least two speaker cones, and a base, said housing being impervious to moisture and generally resistant to the effects of weather, said housing being secured in spaced relationship to a base, said base and said housing thereby defining a circumferential aperture for the passage of sound, said speaker cones including a woofer speaker and a tweeter; said woofer speaker mounted in the lower end of said housing thereby forming an internal chamber below said woofer speaker and between said housing and said base, said woofer speaker being positioned for the downward projection of sound; said tweeter secured to said base coaxial and in close juxtaposition with said woofer speaker and positioned for the downward projection of sound through said internal chamber and out said circumferential apperture; whereby sound from said woofer speaker and said tweeter emanates from said speaker assembly in an omnidirectional manner and free from distortion.
Claim 3
Dependent Claim
29 words
The speaker assembly of claim 1 wherein said peripheral aperture is enclosed by a screen to hinder to entry of water while permitting the relatively unrestricted passage of sound.
Claim 4
Dependent Claim
28 words
The speaker assembly of claim 1 wherein said base includes a cone facing upwardly and coaxial with said speakers for the efficient projection of sound through said aperture.
Claim 5
Dependent Claim
31 words
The speaker assembly of claim 1 wherein said tweeter is mounted at least one inch from said base and said woofer speaker is mounted at least two inches from said base.
Claim 6
Dependent Claim
16 words
the speaker assembly of claim 1 wherein a closed cavity is formed above said woofer speaker.
Claim 7
Dependent Claim
14 words
The speaker assembly of claim 2 wherein said screen comprises a perforated plastic sheet.
Claim 8
Dependent Claim
14 words
The speaker assembly of claim 2 wherein said screen is formed from Acrylonitrile-Butadiene-Styrene Copolymer.
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) | 1989-03-10 | 1989-09-09 | 1990-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-10 | 1993-09-09 | 1994-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-10 | 1997-09-09 | 1998-03-11 | $7700.00 | Window Closed / Lapsed |