Class / Patent application number | Description | Number of patent applications / Date published |
381417000 | Armature diaphragm | 6 |
20080205691 | MOVING ARMATURE RECEIVER WITH REDUCED PARASITIC COUPLING - A moving magnet receiver having a housing portion reducing parasitic flux between the housing and the coil. The housing has a housing portion adjacent to the coil and which has a lower magnetic permeability than a housing part position adjacent to the magnet assembly. | 08-28-2008 |
20080226115 | Moving armature receiver - A compact moving armature receiver where the diaphragm element is positioned in the air gap of the magnet assembly and where a suspension element is provided for defining the front chamber, the suspension element has a stiffness of at the most 500 N/m. The suspension element and the diaphragm element may be made from the same sheet of a foil, and the suspension element may be formed by bent or curved peripheral parts of the foil. | 09-18-2008 |
20090016561 | ARMATURE FOR A RECEIVER - An armature for a receiver comprising a first and a second leg portion each having a thickness and a width and connected to each other, and a connection portion in communication with the first and second leg portions. The connection portion has a width greater than the width of the first and second leg portions individually. The connection portion reduces the stiffness of the armature and minimizes magnetic reluctance of the connection between the first and second leg portions. According to one aspect of the invention, the first and second leg portions are integrally formed with the connection portion and the connection portion includes a least a portion having a thickness less than the thickness of the first and second leg portions individually to reduce the stiffness of the armature. According to another aspect of the invention, the first and second leg portions are separately formed and attached to the connection portion in a way that reduces the stiffness of the armature. | 01-15-2009 |
20150010199 | PERFORMANCE ENHANCING APPARATUS OF BALANCED ARMATURE TRANSDUCER - A balanced armature transducer is provided. The balanced armature transducer is formed with components housed within a frame and includes a pair of magnets separated by a gap to form a Direct Current (DC) magnetic field, and an armature having one end positioned between the separated magnets and having another end curved upward and fixed to an upper portion of the frame. | 01-08-2015 |
20150110338 | Shock Resistant Coil And Receiver - A motor includes an armature, a coil, and a magnetic support structure. The motor also includes at least one magnet that defines a space. The coil forms a tunnel. The space is defined by the at least one magnet being aligned with the tunnel formed by the coil. Portions of the armature extend through the space and the tunnel. An opening at an end of the coil is shaped so as to restrict movement of the armature. | 04-23-2015 |
20160165354 | RECEIVER WITH COIL WOUND ON A STATIONARY FERROMAGNETIC CORE - A receiver includes an acoustic module and a coil module. The acoustic module includes a first housing, a plurality of magnets, and an armature. The armature is disposed within the first housing and extends between the plurality of magnets. The coil module is coupled to the acoustic module, is physically separate from the acoustic module, and includes a second housing and a coil. The coil disposed within the second housing and does not surround the armature. The coil is excitable by an electrical current representative of acoustic energy and excitation of the coil produces a magnetic flux path which moves the armature. | 06-09-2016 |