DYNAMIC LOUDSPEAKER WITH PLASTIC BASKET ENCAPSULATING FRONT POLE PLATE

A loudspeaker assembly and a method of making same, wherein the assembly comprises front and rear pole plates of low reluctance magnetic material. A plastic basket is formed with the front pole plate and encapsulated by the plastic material with the rear pole plate free of encapsulation by the plast...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	KEEZER, WILLIAM J
Format:	Patent
Sprache:	eng
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Beschreibung
Zusammenfassung:	A loudspeaker assembly and a method of making same, wherein the assembly comprises front and rear pole plates of low reluctance magnetic material. A plastic basket is formed with the front pole plate and encapsulated by the plastic material with the rear pole plate free of encapsulation by the plastic. The assembly is formed by placing the front pole plate in the rear of a mold for the loudspeaker basket and flowing plastic material into the mold to encapsulate only the front pole plate while leaving the rear pole plate free of being encapsulated by the plastic material.