US4051919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High fidelity speaker enclosure
Assignee: Individual
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Filing: 1975-12-08
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Granted: 1977-10-04
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Expires: 1995-12-08
Abstract
Abstract A high fidelity speaker array comprises a full range speaker board, a pair of tweeter boards disposed at an angle of from 120° to 165° with respect to said full range speaker board, and a pair of midrange speaker boards disposed at an angle between 5° and 85° with respect to said full range speaker board, each tweeter board being between and abutting said full range speaker board and a midrange speaker board.
Inventors
- 👤 John M. Buettner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:11
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/22; H04R1/26; H04R2205/00; H04R2205/022
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
104 words
A vertically disposed high fidelity speaker array mounted in an enclosure, which array comprises: a. a full range speaker board, b. a pair of tweeter boards disposed at an angle from 120° to 165° with respect to said full range speaker board, and c. a pair of midrange speaker boards disposed at an angle between 5° and 85° with respect to said full range speaker board, d. said tweeter boards being disposed between and abutting said full range and midrange boards, e. each board bearing at least one speaker thereon, and f. all speakers being directed away from the area defined by said boards.
Claim 2
Dependent Claim
104 words
A vertically disposed high fidelity speaker array mounted in an enclosure, which array comprises: a. a full range speaker board, b. a pair of tweeter boards disposed at an angle from 120° to 165° with respect to said full range speaker board, and c. a pair of midrange speaker boards disposed at an angle between 5° and 85° with respect to said full range speaker board, d. said tweeter boards being disposed between and abutting said full range and midrange boards, e. each board bearing at least one speaker thereon, and f. all speakers being directed away from the area defined by said boards.
Claim 3
Dependent Claim
16 words
An array as in claim 1 wherein said pair of midrange speaker boards abut each other.
Claim 4
Dependent Claim
45 words
An array as in claim 1 wherein a reflecting board is disposed parallel to said full range speaker board, said tweeter boards and midrange speaker boards being disposed between said full range speaker board and said reflecting board, each board abutting the next adjacent boards.
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) | 1980-10-03 | 1981-04-04 | 1981-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-03 | 1985-04-04 | 1985-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-03 | 1989-04-04 | 1989-10-04 | $7700.00 | Window Closed / Lapsed |