Spool assembly

Details Spool assembly Spool assembly

2006-07-18

2006-07-18

Mai, Anh (Department: 2832)

Inductor devices

Coil or coil turn supports or spacers

Coil on a preformed support or mount

C336S198000

Reexamination Certificate

active

07079000

ABSTRACT:
A spool assembly retains a winding of an electrical wire thereabout. The electrical wire is covered by a liquid insulating material. The spool assembly includes a cylinder to finding a longitudinal axis and an outer diameter. The cylinder extends between a high voltage end and a low voltage end along the longitudinal axis. The spool assembly also includes a high retainer disposed about the cylinder at the high voltage end. The high retainer has a high retainer diameter greater than the outer diameter of the cylinder. The spool assembly also includes a low retainer disposed about the cylinder at the low voltage end. The low retainer has a low retainer diameter greater than the outer diameter of the cylinder. This spool assembly also includes a channel extending along the cylinder inwardly from the outer diameter to receive the liquid insulating material when the liquid insulating material is forced through the winding to prevent air voids from forming at the inside diameter of the winding.

REFERENCES:
patent: 5632136 (1997-05-01), Luchenbill et al.
patent: 6127912 (2000-10-01), Dust et al.
patent: 6216679 (2001-04-01), Skinner et al.
patent: 6353378 (2002-03-01), Oosuka et al.

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