Patents Assigned to Floating Membranes, Inc.
  • Audio transducer with controlled flexibility diaphragm
    Patent number: 4584439
    Abstract: An audio transducer for reproducing sound. The transducer may be utilized as a loudspeaker or a microphone. The transducer comprises a frame on which is mounted a pair of opposing permanent magnets, which produce opposing magnetic fields and a flexible diaphragm which encloses an elongate looped coil and passes through the magnetic field. A signal of variable amplitude in the coil accompanies movement of the diaphragm in what is described herein as rolling, linear movement.
    Type: Grant
    Filed: December 1, 1983
    Date of Patent: April 22, 1986
    Assignee: Floating Membranes, Inc.
    Inventor: Paul W. Paddock