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US3752258A
Expired / Lapsed
US
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Speaker system
Assignee: Individual
•
Filing: 1971-10-28
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Granted: 1973-08-14
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Expires: 1991-10-28
Abstract
Abstract A speaker system provided with a plurality of radially arranged flat speaker-units, a speaker-unit support comprising support walls corresponding, respectively, to the speaker-units and sections capable of attaching onto structures, such as partitions, ceilings, etc., joint-units connecting the speakerunits with the support so that the speaker-units can be turned towards desired directions at various angles to the corresponding support walls either co-operatively or selectively, and means holding the speaker-units at a desirable position.
Inventors
- 👤 H Ishikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:29
CPC Classifications
F; F16; F16M; F16M11/00; F16M11/02; F16M11/04; F16M11/06; F16M11/12; F16M11/14; F16M13/00; F16M13/02; F16M13/027; F21; F21V; F21V33/00; F21V33/0004; F21V33/0052; F21V33/0056; H; H04; H04R; H04R1/00; H04R1/02; H04R1/20; H04R1/32; H04R1/40; H04R1/403; F16M2200/00; F16M2200/02; F16M2200/021; F16M2200/022
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
116 words
A speaker system comprising: a speaker-unit support; a plurality of speaker-units; mounting means mounting said plurality of speaker-units on said speaker-unit support and including a plurality of universal joints each comprising a ballshaped member connected to one of said speaker-unit support and one speaker-unit and a socket connected to the other of said speaker-unit support and said one speaker-unit and receiving said ball-shaped member therein for universal movement of said one speaker-unit independently of the others and relative to said speaker-unit support; and adjustable tightening means coacting with said mounting mEans for adjustably pressing each ball-shaped member against the associated socket to adjustably tighten each universal joint to immovably maintain each speaker-unit in a selected position.
Claim 2
Dependent Claim
116 words
A speaker system comprising: a speaker-unit support; a plurality of speaker-units; mounting means mounting said plurality of speaker-units on said speaker-unit support and including a plurality of universal joints each comprising a ballshaped member connected to one of said speaker-unit support and one speaker-unit and a socket connected to the other of said speaker-unit support and said one speaker-unit and receiving said ball-shaped member therein for universal movement of said one speaker-unit independently of the others and relative to said speaker-unit support; and adjustable tightening means coacting with said mounting mEans for adjustably pressing each ball-shaped member against the associated socket to adjustably tighten each universal joint to immovably maintain each speaker-unit in a selected position.
Claim 3
Dependent Claim
17 words
A speaker system, according to claim 1, wherein at least two speaker-units extend around the speaker-unit support.
Claim 4
Dependent Claim
25 words
A speaker system, according to claim 1, wherein said speaker-unit support comprises a prismatic triangle, having at least one speaker-unit disposed on each wall thereof.
Claim 5
Dependent Claim
21 words
A speaker system, according to claim 1, wherein each speaker-unit comprises a diaphragm and a frame composed of foamed synthetic resins.
Claim 6
Dependent Claim
15 words
A speaker system, according to claim 1, wherein said speaker-unit support comprises a hollow structure.
Claim 7
Dependent Claim
27 words
A speaker system, according to claim 1, wherein said speaker-unit support comprises an equipping element disposed within said speaker-unit support for attaching said speaker-unit support onto structures.
Claim 8
Dependent Claim
92 words
A speaker system comprising a plurality of speaker-units; a framework surrounding each speaker-unit; a speaker-unit support having walls corresponding, respectively, to the framework; means connecting each framework to said speaker-unit support comprising an arm projecting from said speaker-unit support and terminating in a socket, another arm projecting from the framework and terminating in a ball disposed within said socket thereby defining a universal joint, a connecting pipe extending over the end part of both the arms; and tightening means disposed on said connecting pipe for adjustably pressing said ball on the socket.
Claim 9
Dependent Claim
92 words
A speaker system comprising a plurality of speaker-units; a framework surrounding each speaker-unit; a speaker-unit support having walls corresponding, respectively, to the framework; means connecting each framework to said speaker-unit support comprising an arm projecting from said speaker-unit support and terminating in a socket, another arm projecting from the framework and terminating in a ball disposed within said socket thereby defining a universal joint, a connecting pipe extending over the end part of both the arms; and tightening means disposed on said connecting pipe for adjustably pressing said ball on the socket.
Claim 10
Dependent Claim
74 words
A speaker system according to claim 7, wherein the arm having the socket comprises a slant surface; said connecting pipe has a flange in its interior for supporting said ball of said another arm; and said tightening means includes a tightening bolt screwed into the connecting pipe and the end part sliding along said slant surface for pushing said connecting pipe to one direction when the tightening bolt is screwed further into the pipe.
Claim 11
Dependent Claim
34 words
A speaker system according to claim 7, wherein said connecting pipe comprises means defining a groove for allowing the insertion of the arm attached to the speaker-unit for changing the position of the arm.
Claim 12
Dependent Claim
27 words
A speaker system according to claim 7, wherein said speaker-unit support is composed of light-permeable materials, and further comprising a light source mounted in said speaker-unit support.
Claim 13
Dependent Claim
77 words
A speaker system according to claim 1, wherein said adjustable tightening means comprises a connecting pipe covering both said socket and said ball-shaped member and having a flange on one end for confining said ball-shaped member therein, a slant surface on said socket, and a tightening bolt mounted on said connecting pipe and slidable along said slant surface when tightened thereby pulling said connecting pipe in a direction effective to press said ball-shaped member against said socket.
References Cited (Backward Citations)
US2070088A
Cited
GB833707A
Cited
GB871574A
Cited
US3351719A
Cited
US3213961A
Cited
US3170538A
Cited
US3385929A
Cited
US3491204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |