Method and apparatus for drying paper-wound bushings
AssigneeGeneral Electric Company
InventorJoseph R. McLoughlin
Life of this patent
Estimating the term…
Abstract
In a method and apparatus for drying paper-wound bushings the paper-wound bushings are placed over a plurality of heat pipes which contain a vaporizable liquid as a heat transfer medium located within a closed container. The heat pipes are heated to raise the temperature of the paper-wound bushings to a level adequate to vaporize water left in said paper-wound bushings during manufacture thereof, thereby drying each of the bushings.
Claims10
Apparatus for drying paper-wound bushings having conductive foil layers at predetermined radial positions, comprising:
- a closed insulated container;
- a heat conductive platen disposed within said container;
- a plurality of heat pipes attached to said platen;
- each of said heat pipes comprising an evacuated elongated hollow cylindrical pipe closed at each end thereof and containing a quantity of heat exchange liquid;
- heating means for heating said platen to a temperature sufficient to vaporize said liquid;
- and
- means for collecting water vapor driven off bushings disposed around said heat pipes.
A method of drying paper-wound bushings having conductive foil layers at predetermined radial positions, comprising:
- disposing each of a plurality of bushings concentrically about a respective one of a plurality of heat pipes disposed in an insulated enclosure;
- evacuating said enclosure;
- heating said heat pipes to vaporize a heat exchange liquid disposed therein;
- and
- removing from said enclosure water vaporized from said bushings.
Dependencies are inferred from the claim text.