Compound Loudspeaker
AssigneeGP Acoustics (UK) Limited
InventorJack Anthony Oclee-Brown
Life of this patent
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Abstract
A compound loudspeaker comprises an acoustically radiating first diaphragm and an acoustically radiating second diaphragm. The first and second diaphragms are substantially coaxial and at least part of the second diaphragm is situated radially outwards of the first diaphragm. There is a gap situated between the first and second diaphragms, and a seal is provided in the gap, thereby preventing or hindering the passage of air through the gap. By providing the seal, the invention solves the problem of audible turbulent airflow through the gap.
Claims19
A compound loudspeaker, comprising:
- an acoustically radiating first diaphragm;
- and
- an acoustically radiating second diaphragm,
- the first and second diaphragms being substantially coaxial and at least part of the second diaphragm being situated radially outwards of the first diaphragm, there being a gap situated between the first and second diaphragms,
- and wherein a seal is provided in the gap, thereby to prevent or hinder passage of air through the gap, the seal comprising first and second edge regions, and a flexible region connecting the first and second edge regions, and projecting inwardly to define a volume which opens to the atmosphere at an opening between the first and second edge regions,
- the compound loudspeaker further comprising a member extending partially across the opening.
-20. (canceled)
A loudspeaker seal configured for use in a compound loudspeaker, the loudspeaker seal comprising:
- first and second edge regions;
- and
- a flexible region connecting the first and second edge regions,
- wherein the compound loudspeaker comprises:
- an acoustically radiating first diaphragm;
- and
- an acoustically radiating second diaphragm,
- the first and second diaphragms being substantially coaxial and at least part of the second diaphragm being situated radially outwards of the first diaphragm, there being a gap situated between the first and second diaphragms,
- and wherein the loudspeaker seal is provided in the gap, thereby to prevent or hinder passage of air through the gap, and projects inwardly to define a volume which opens to the atmosphere at an opening between the first and second edge regions,
- wherein the compound loudspeaker further comprising a member extending partially across the opening.
Dependencies are inferred from the claim text.