Patents by Inventor Boaz Elieli

Boaz Elieli has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Electro acoustic transducer and loudspeaker
    Patent number: 4965839
    Abstract: A loudspeaker transducer has a coil (5) and a metal dome (11) with a skirt (13) arranged concentrically in a magnetic gap between pol pieces (2 and 4). The skirt (13) is inductively coupled to the coil (5) but is mechanically independent of the coil former tube (6). The tube (6) is connected to a main low frequency cone (9) and to a short concentric additional cone (16). A fixed element (14) providing phase correction and/or horn loading is fixed to the center pole piece (4) in front of the dome (11) and within the tube (6). The member (14) and tube (6) co-operate acoustically.
    Type: Grant
    Filed: June 2, 1989
    Date of Patent: October 23, 1990
    Inventor: Boaz Elieli