US4136755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loudspeaker system for a vehicle
Assignee: Volkswagen AG
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Filing: 1977-04-04
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Granted: 1979-01-30
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Expires: 1997-04-04
Abstract
Abstract A loudspeaker system for the passenger compartment of a vehicle, such as an automobile, is disclosed. The system has at least two loudspeakers arranged on opposite sides of the passenger compartment in the end regions of a rigid, hollow support element which is closed on all sides and extends across substantially the entire width of the passenger compartment. This hollow support element is at least partially filled with sound absorbing material.
Inventors
- 👤 Friedrich Goes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:43
CPC Classifications
B; B60; B60R; B60R11/00; B60R11/02; B60R11/0217; B60R11/0264; B60R2011/0001; B60R2011/0003; B60R2011/0005; B60R2011/0019; B60R2011/0024
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
113 words
In a loudspeaker system for the passenger compartment of a vehicle, such as an automobile, having at least two loudspeakers arranged on opposite sides of the passenger compartment, the improvement comprising a rigid, hollow support element adapted for arrangement within the passenger compartment of the vehicle, wherein said hollow support element has a lengthwise dimension, measured in the direction of the spacing between the loudspeakers, which is substantially equal to the width of the passenger compartment; wherein said hollow support element is closed on all sides and has openings in the end regions thereof for receiving the loudspeakers; and wherein said hollow support element is at least partially filled with sound absorbing material.
Claim 2
Dependent Claim
113 words
In a loudspeaker system for the passenger compartment of a vehicle, such as an automobile, having at least two loudspeakers arranged on opposite sides of the passenger compartment, the improvement comprising a rigid, hollow support element adapted for arrangement within the passenger compartment of the vehicle, wherein said hollow support element has a lengthwise dimension, measured in the direction of the spacing between the loudspeakers, which is substantially equal to the width of the passenger compartment; wherein said hollow support element is closed on all sides and has openings in the end regions thereof for receiving the loudspeakers; and wherein said hollow support element is at least partially filled with sound absorbing material.
Claim 3
Dependent Claim
25 words
The improvement defined in claim 1, wherein said hollow support element includes at least one rigid partition arranged in its mid-region between said end regions.
Claim 4
Dependent Claim
42 words
The improvement defined in claim 2, wherein said hollow support element includes a plurality of rigid partitions in its mid-region, and wherein the only spaces inside said hollow support element which lie outside the outermost partitions are filled with sound absorbing material.
Claim 5
Dependent Claim
34 words
The improvement defined in claim 1, wherein said hollow support element is arranged within a vehicle having an instrument panel, and wherein said hollow support element constitutes a supporting component of said instrument panel.
Claim 6
Dependent Claim
36 words
The improvement defined in claim 1, wherein said hollow support element is arranged within a vehicle having an instrument panel, and wherein said hollow support element is fastened to the lower edge of the instrument panel.
Claim 7
Dependent Claim
49 words
The arrangement defined in claim 1, wherein said hollow support element is arranged within the passenger compartment of a vehicle at a location in front of the knees of the vehicle passengers, whereby said hollow support element forms a component of a passive restraining system comprising a knee bar.
Claim 8
Dependent Claim
46 words
The improvement defined in claim 1, wherein said hollow support element is arranged in a vehicle having a passenger compartment and a trunk space, said hollow support element being located between said passenger compartment and said trunk space and forming a covering for said trunk space.
References Cited (Backward Citations)
US3397286A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-29 | 1982-07-31 | 1983-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-29 | 1986-07-31 | 1987-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-29 | 1990-07-31 | 1991-01-30 | $7700.00 | Window Closed / Lapsed |