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US 5,512,315 AGranted
Capacitor manufacturing technique
AssigneeRoederstein Electronics, Inc.
InventorGeoffrey K. Hooper
Life of this patent
Estimating the term…
Abstract
Sacrificial coatings are applied to the rounded ends of the flattened spiral laminates for wound film capacitors. The coated laminates are positioned between tapes masking their flat surfaces. The end faces of those laminates are then sprayed with the schoopage metal and the laminates are subsequently tumbled to remove the coatings and any overspray appearing on their rounded surfaces.
Claims10
In a method of fabricating wound film capacitors, which method comprises the steps of positioning flattened spiral laminates between tapes which mask the flat surfaces but not the rounded surfaces or the end faces of said laminates,
- spraying metal onto said end faces in such manner that some of said metal may form overspray on said rounded surfaces, and
- tumbling the sprayed laminates to abrade surface roughness from said sprayed-on metal, the improvement comprising:
- applying a sacrificial coating at least to portions of said rounded surfaces prior to positioning said laminates between said tapes,
- said tumbling also abrading said coatings and any overspray on said coatings.
1 more element
Dependencies are inferred from the claim text.