IP Library Granted Patent US 8,320,605
Granted Patent B2
US 8,320,605 · App. 11/885,612 · Granted Nov 27, 2012

Electro-acoustic transducer

Assignee: KH Technology Corporation
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Quick Facts
Patent No.
US 8,320,605
App. No.
11/885,612
Granted
Nov 27, 2012
Kind
B2
Abstract

An electro-acoustic transducer with a front part having an acoustically radiating surface, a supporting part that supports the front part and that extends from a peripheral region of the front part in a direction away from the acoustically radiating surface, and a reinforcing part that provides rigidity to the transducer. The reinforcing part extends from the supporting part to the front part such that a portion of the reinforcing part is spaced from the front part and/or the supporting part.

Claims (27)

1. An electro-acoustic transducer, comprising:

a front part having an acoustically radiating surface;

a supporting part that supports the front part and that extends from a peripheral region of the front part in a direction away from the acoustically radiating surface; and

a reinforcing part that provides rigidity to the transducer by extending from tangential engagement with the supporting part to tangential engagement with the front part such that a portion of the reinforcing part is spaced from the front part and the supporting part.

2. A transducer according to claim 1 , wherein the supporting part extends from the peripheral region of the front part.

3. A transducer according to claim 1 , wherein the peripheral region of the front part is circular.

4. A transducer according to claim 1 , wherein the peripheral region of the front part is cylindrical.

5. A transducer according to claim 1 , wherein:

at least the portion of the reinforcing part that is spaced from the front part and the supporting part has a truncated dome shape.

6. A transducer according to claim 5 , wherein the truncated dome of the reinforcing part has a spherical curvature.

7. A transducer according to claim 1 , wherein at least the portion of the reinforcing part that is spaced from the front part and the supporting part is continuous.

8. A transducer according to claim 1 , wherein at least one of the reinforcing part, the supporting part, and the front part is formed from one or more sheets of material.

9. A transducer according to any one of claim 1 , wherein at least the portion of the reinforcing part that is spaced from the front part and the supporting part comprises a plurality of sections.

10. A transducer according to claim 9 , wherein at least some of the plurality of sections are spaced apart from each other.

11. A transducer according to claim 9 , wherein at least some of the plurality of sections comprise reinforcing struts.

12. A transducer according to claim 1 , wherein the reinforcing part is perforated.

13. A transducer according to claim 1 , wherein the front part is dome-shaped.

14. A transducer according to claim 1 , wherein the acoustically radiating surface of the front part is dome-shaped.

15. A transducer according to claim 1 , wherein the acoustically radiating surface of the front part has a shape of a segment of a sphere.

16. A transducer according to claim 1 , wherein a minimum radius of the acoustically radiating surface of the front part is greater than a maximum radius of at least the portion of the reinforcing part that is spaced from the front part and the supporting part.

17. A transducer according to claim 1 , further comprising a coiled electrical conductor carried by the supporting part.

18. A transducer according to claim 1 , further comprising a magnet forming part of a drive unit for the transducer.

19. A loudspeaker comprising a transducer according to claim 1 , wherein the loudspeaker further comprises at least one of a plurality of transducers and a plurality of acoustically radiating diaphragms.

20. A loudspeaker system comprising a plurality of loudspeakers, wherein each of the plurality of loudspeakers comprises:

a front part having an acoustically radiating surface;

a supporting part that supports the front part and that extends from a peripheral region of the front part in a direction away from the acoustically radiating surface; and

a reinforcing part that provides rigidity to the loudspeaker by extending from tangential engagement with the supporting part to tangential engagement with the front part such that a portion of the reinforcing part is spaced from the front part and the supporting part.

Assignments (3)
CORRECTIVE ASSIGNMENT TO CORRECT THE INCORRECT PATENT NO'S D486,256, D486,257 PREVIOUSLY RECORDED AT REEL: 039846 FRAME: 0088. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF NAME. Recorded Aug 25, 2017
From: KH TECHNOLOGY CORPORATION
To: KEF CELESTION CORPORATION
Reel/Frame 043676/0194 →
CHANGE OF NAME Recorded Aug 26, 2016
From: KH TECHNOLOGY CORPORATION
To: KEF CELESTION CORPORATION
Reel/Frame 039846/0088 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 29, 2008
From: DODD, MARK
To: KH TECHNOLOGY CORPORATION
Reel/Frame 021753/0973 →
Priority Claims (1)
GB 0504274.2 · Mar 2, 2005 · national
Continuity (1)
Related Publication 20090022356A1 · Jan 22, 2009