H - Electricity – 04 – R
Patent
H - Electricity
04
R
349/84
H04R 7/02 (2006.01) H04R 7/04 (2006.01) H04R 7/20 (2006.01) H04R 9/06 (2006.01)
Patent
CA 1213032
Abstract Electro-acoustic Transducer with Diaphragm and Blank Therefor The transducer diaphragm includes a folded sheet of thin film material, having a front surface and having a plurality of rearwardly extending projections in the form of fins or vanes thereon. Each one of the projections has at least one conductor portion disposed thereon. A substantially flat,thin sheet is secured to form the front face of the diaphragm and to help rigidify the folded sheet. In the preferred form of the invention, each one of the projections is generally channel-shaped throughout its length, and has a bight portion interconnecting a pair of leg portions. In one form of the invention, at least one portion of a conductor is disposed on each one of the projections. The diaphragm is made from a blank, which includes the sheet of film material having a pair of similar conductors, each configured in a similar manner and deposited on the opposite sides thereof in an oppositely disposed confronting relation- ship and in registration with one another, so that the blank can be readily folded to form the diaphragm, without causing it to bow or otherwise be deformed.
430402
Larson David A.
Schumaker Daniel A.
Gowling Lafleur Henderson Llp
Omnar Technologies Inc.
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