US PATENT SUBCLASS 381 / 403
.~.~.~ Centering from outside bobbin or diaphragm

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


381 /   HD   ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES

150  DF  ELECTRO-ACOUSTIC AUDIO TRANSDUCER {18}
396  DF  .~ Electromagnetic (e.g., dyynamic) {8}
400  DF  .~.~ Movable voice coil {8}
403.~.~.~ Centering from outside bobbin or diaphragm {1}
404  DF  .~.~.~.~> Spider

DEFINITION

Classification: 381/403

Centering from outside bobbin or diaphragm:

(under subclass 400) Subject matter for the adjustment of voice coil position in an air gap so that the coil and gap axes coincide, in which the means for accomplishing this lies outside a cylindrical means holding the voice coil, or outside the volume contained by a moving membrane.