Loudspeaker assembly having loudspeaker wholly supported by vibratory diaphragm

Claim 1

A LOUDSPEAKER ASSEMBLY COMPRISING A MAGNETIC LOUDSPEAKER HAVING A RIGID CONICAL APERTURED FRAME WITH AN ANNULAR FLANGE AT ITS WIDER END, A MAGNET SECURED TO THE APICAL END OF THE FRAME, A CONICAL VIBRATORY CONE NESTED IN THE FRAME, ELECTRICALLY ENERGIZED DRIVING MEANS CARRIED BY THE MAGNET AND OPERATIVELY CONNECTED TO THE APICAL END OF THE CONE TO DRIVE THE SAME AXIALLY, SAID CONE HAVING A PERIPHERAL RIM REGISTERING WITH AND ABUTTED TO SAID FLANGE, A MEMBRANOUS DIAPHRAGM HAVING AN OPENING THEREIN, MEANS SECURING BOTH THE FLANGE OF THE FRAME AND THE RIM OF THE CONE TO THE EDGE OF SAID OPENING IN SEALING RELATIONSHIP, SO THAT THE ENTIRE MAGNETIC LOUDSPEAKER IS SUPPORTED ONLY BY THE DIAPHRAGM AND IS FREE FROM ALL OTHER EXTERNAL SUPPORT, A RESILIENT, NARROW GASKET EXTENDING ALL AROUND THE PERIPHERY OF THE DIAPHRAGM AND SECURED THERETO AT ONE EDGE OF THE GASKET, AN ENCLOSURE HAVING AN OPENING THEREIN, AND MEANS SECURING THE OTHER EDGE OF SAID GASKET IN HERMETIC RELATIONSHIP ALL AROUND THE OPENING IN THE ENCLOSURE SO THAT THE DIAPHRAGM IS SUPPORTED IN FLAT, STRETCHED VIBRATILE CONDITION WITH THE LOUDSPEAKER CARRIED ONLY BY THE DIAPHRAGM, THE DIAPHRAGM HAVING A FREE VIBRATORY AREA AT LEAST AS LARGE AS THAT OF THE CONE.