Vibration damping loudspeaker
US-2024430621-A1 · Dec 26, 2024 · US
Electrodynamic loudspeaker with conducting elements
US9100738B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9100738-B2 |
| Application number | US-201414449644-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 1, 2014 |
| Priority date | Aug 1, 2013 |
| Publication date | Aug 4, 2015 |
| Grant date | Aug 4, 2015 |
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Abstract
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A loudspeaker includes a motor assembly including a magnet having a first face and a second face, a back plate abutting the magnet first face, a pole piece centrally disposed with respect to the back plate and extending beyond the magnet second face, and a top plate concentrically disposed with respect to the pole piece and extending beyond the magnet second face. A non-magnetic conducting frame is attached to the top plate, a non-magnetic conducting cap is disposed within the motor assembly and encircling the pole piece, a first non-magnetic conducting ring is disposed within the motor assembly and encircling the pole piece, and at least one second non-magnetic conducting ring is disposed within the motor assembly and abutting the back plate.
First claim
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What is claimed is: 1. A loudspeaker comprising: a motor assembly including a magnet having a first face and a second face, a back plate abutting the magnet first face, a pole piece centrally disposed with respect to the back plate and extending beyond the magnet second face, and a top plate concentrically disposed with respect to the pole piece and extending beyond the magnet second face; a non-magnetic conducting frame attached to the top plate; a non-magnetic condu…
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Frequently asked questions
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- What does patent US9100738B2 cover?
- A loudspeaker includes a motor assembly including a magnet having a first face and a second face, a back plate abutting the magnet first face, a pole piece centrally disposed with respect to the back plate and extending beyond the magnet second face, and a top plate concentrically disposed with respect to the pole piece and extending beyond the magnet second face. A non-magnetic conducting fram…
- Who is the assignee on this patent?
- Harman Int Ind
- What technology area does this patent fall under?
- Primary CPC classification H04R9/025. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 04 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).