Device useful for signal transfer from static surface to...

Details Device useful for signal transfer from static surface to... Device useful for signal transfer from static surface to...

2005-09-27

2005-09-27

Mai, Anh (Department: 2832)

Inductor devices

Relatively movable coils

With core

C336S115000, C336S083000

Reexamination Certificate

active

06950003

ABSTRACT:
A device useful for transferring signals from static surface to a rotating surface, said device comprising a pair of pot cores acting as a primary and secondary core and said primary pot core being wound with ‘N1’ number of turns and said secondary pot core being wound with ‘N2’ number of turns of a conducting wire respectively, such that each turn of the wire rests on top of the previous turns thereby increasing inner diameter of the pot core by a wire thickness each time, one of the said pot core is mounted on a rotating surface and the other pot core being fixed to a static surface with minimum air gap between each other such that the coils are always facing each other even if the primary and the secondary cores are rotated through 0 to 360° with respect to each other.

REFERENCES:
patent: 4560928 (1985-12-01), Hayward
patent: 4701674 (1987-10-01), Oono et al.
patent: 5656983 (1997-08-01), Ito et al.
patent: 5719546 (1998-02-01), Ito et al.
patent: 5814900 (1998-09-01), Esser et al.
patent: 6040986 (2000-03-01), Sakamoto et al.
patent: 6580267 (2003-06-01), Logue et al.

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