Title (en)

RING RADIATOR FOR LOUDSPEAKERS

Publication

EP 0065883 A3 19840111 (EN)

Application

EP 82302712 A 19820526

Priority

GB 8116061 A 19810526

Abstract (en)

[origin: EP0065883A2] A ring radiator for a loudspeaker has an annular inner portion (24) and an annular outer portion (22) and a tubular former (24c) carrying a coil (28) and positioned at the junction of said portions. Instead of securing the former to the radiating element by a butt joint the former is here made integral with at least one of the portions (e.g. 24a, 24b) of the radiating element. If integral with just one portion of the radiating element, the wound component is then secured to the other portion (22), preferably by an adhesive lap joint.

IPC 1-7

H04R 7/12

IPC 8 full level

H04R 7/12 (2006.01); H04R 9/04 (2006.01)

CPC (source: EP)

H04R 7/12 (2013.01); H04R 9/045 (2013.01)

Citation (search report)

• [X] GB 619882 A 19490316 - BRITISH THOMSON HOUSTON CO LTD, et al
• [Y] GB 301437 A 19281127 - ADRAIN FRANCIS SYKES
• [Y] US 2019878 A 19351105 - TOLERTON RAY E

Designated contracting state (EPC)

BE DE FR IT NL SE

DOCDB simple family (publication)

EP 0065883 A2 19821201; EP 0065883 A3 19840111; GB 2099659 A 19821208

DOCDB simple family (application)

EP 82302712 A 19820526; GB 8215365 A 19820526