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US 4,065,849 AGranted
Process of manufacturing electric fuse
AssigneeThe Chase-Shawmut Company
InventorFrederick J. Kozacka
Life of this patent
Estimating the term…
Abstract
An electric fuse having blind metal fusion joints, e.g. solder joints, between the two ferrules and the fusible element, or the fusible elements, thereof. One of these conductive connection joints is situated adjacent the center region of the inner end surface of one of the two ferrules. The other of these conductive connection joints is situated between one of the rims of the casing and the peripheral region of the inner end surface of the other of the two ferrules.
Claims2
A process of manufacturing electric fuses including the steps of
- a. mounting a first ferrule having an inner end surface on a first rim of a casing of electric insulating material;
- b. inserting a fusible element in the form of a ribbon into said casing in such a way that said fusible element in the form of a ribbon slants from the center region of said inner surface of said first ferrule to a point on the second rim of said casing;
- c. establishing a solder joint between said fusible element in the form of a ribbon and said first ferrule at said center region of said inner end surface thereof;
- d. filling said casing with a granular arc-quenching filler;
- e. applying solder to said fusible element in the form of a ribbon at a point thereof engaging said second rim of said casing;
- f. mounting a second ferrule having an inner end surface on said second rim on said casing;
- and thereafter
- g. heating said second ferrule from the outside thereof to cause fusion of said solder and formation of an internal solder joint between said second ferrule and said fusible element in the form of a ribbon.
5 more elements
Dependencies are inferred from the claim text.