07288860 is referenced by 33 patents and cites 74 patents.

An electrical generator includes one or more magnets that move relative to one or more conductors to generate an electrical signal in each conductor. Each magnet has ferrofluid bearings in the vicinity of its opposite ends to provide a low friction interface between the magnet and a support structure. The ferrofluid bearings establish a field expansion medium that directs at least a portion of the magnetic field so that a greater portion of the field intersects the conductors than in the absence of the medium. The magnet aspect ratio is preferably on the order of unity.

Title
Magnetic transducer with ferrofluid end bearings
Application Number
10/846418
Publication Number
7288860 (B2)
Application Date
May 13, 2004
Publication Date
October 30, 2007
Inventor
Hao Xin
Tucson
AZ, US
Jeffrey T Cheung
Thousand Oaks
CA, US
Agent
Koppel Patrick Heybl & Dawson
Assignee
Teledyne Licensing
CA, US
IPC
H02K 35/02
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