Patent ID: 11917376
Assignee: COCHLEAR LIMITED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. The device of claim 10, wherein:
the actuator includes a first assembly and a second assembly, the second assembly moving relative to the first assembly;
two axial air gaps are located between the first assembly and the second assembly;
two radial air gaps are located between the first assembly and the second assembly;
respective spans of the radial air gaps are about the same order of magnitude as the respective spans of the axial air gaps;
the first assembly includes a bobbin about which the coil is wound;
the second assembly includes at least one yoke; and
all yokes of the second assembly that have portion(s) that are located closer to an axis about which the coils are wound than portion(s) of the bobbin that are furthest away from the coil extend into the bobbin.