US4182429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loud-speaker system
Assignee: SENZAKI SEISAKUSHO KK
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Filing: 1978-02-22
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Granted: 1980-01-08
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Expires: 1998-02-22
Abstract
Abstract A loud-speaker system comprising at least a loud-speaker means for high sound with a loud-speaker means for low sounds arranged substantially coaxially thereto is provided in which the loud-speaker means for high sounds is adjustably mounted to the loud-speaker means for low sounds so that the position of the former can be adjusted relative to that of the latter in order to compensate for the directional characteristics of the former relative to the location of the listener.
Inventors
- 👤 Hiroshi Senzaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:51
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/22; H04R1/24; H04R1/32; H04R1/323
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
114 words
A loud-speaker system comprising at least a first loud-speaker means for low sounds and at least a second loud-speaker means for high sounds arranged substantially coaxially with respect to said first loud-speaker in the rest position of the second loud-speaker said system further comprising pivotable mounting means pivotably mounting said loud-speaker means for high sounds relative to the frame of said loud-speaker means for low sounds so as to permit pivoting of said loud-speaker means for high sounds from said rest position and thereby varying the direction of the high sounds from said loud-speaker means for high sounds, said mounting means being disposed substantially in the plane of the mouth of said first loud-speaker.
Claim 2
Dependent Claim
114 words
A loud-speaker system comprising at least a first loud-speaker means for low sounds and at least a second loud-speaker means for high sounds arranged substantially coaxially with respect to said first loud-speaker in the rest position of the second loud-speaker said system further comprising pivotable mounting means pivotably mounting said loud-speaker means for high sounds relative to the frame of said loud-speaker means for low sounds so as to permit pivoting of said loud-speaker means for high sounds from said rest position and thereby varying the direction of the high sounds from said loud-speaker means for high sounds, said mounting means being disposed substantially in the plane of the mouth of said first loud-speaker.
Claim 3
Dependent Claim
53 words
A loud-speaker system as claimed in claim 1 wherein said loud-speaker means for high sounds is secured to a support plate, said support plate being adjustably mounted to said loud-speaker means for low sounds through a pair of bridge members which are secured to a frame of said loud-speaker means for low sounds.
Claim 4
Dependent Claim
108 words
A loud-speaker system as claimed in claim 2 wherein each of said bridge members has generally a plate like configuration with one end being bent downwards at right angles so as to give a plain web portion and the other end being rigidly secured to said frame so that said web portions confront each other with a space being left therebetween, said support plate having generally a square shape with a pair of side plate portions being depended at right angles from its opposite edges, said support plate being disposed within said space and pivotally mounted at said side plate portions to bridge members at said web portions.
Claim 5
Dependent Claim
103 words
A loud-speaker system as claimed in claim 3 wherein a number of approximately equally spaced detents or through holes are formed in said side plate portions in an arc the center of which coincides with the pivotal point of said side plate portions to said web portions, and ball means is loosely fit within a hole provided in each of said web portions so that said hole lies on said arc, said ball means being adapted to be resiliently held in both said hole and one of said detents or through holes by the action of spring means secured to said web portions.
Claim 6
Dependent Claim
49 words
A loud-speaker system as claimed in claim 4 wherein the positions of said detents or through holes are staggered between each said side plate portions of said support plate so that none of them aligns on a line parallel to the line connecting the centers of said pivotal points.
Claim 7
Dependent Claim
33 words
A loud-speaker system as claimed in claim 1 wherein said pivotable mounting means comprises means defining an offset pivot axis disposed generally adjacent to one edge of said loud-speaker means for high sounds.
References Cited (Backward Citations)
US1866831A
Cited
US2073747A
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US2259907A
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US2593031A
Cited
US3379276A
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US3754618A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-07 | 1983-07-09 | 1984-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-07 | 1987-07-09 | 1988-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-07 | 1991-07-09 | 1992-01-08 | $7700.00 | Window Closed / Lapsed |