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US 2015/0357143 A1Published application
Foam fuse filler and cartridge fuse
AssigneeLittelfuse, Inc.
InventorsRoel RETARDO, Albert ENRIQUEZ
Life of this patent
Estimating the term…
Abstract
Fuses having a melamine-coated-steatite foam filler are described. In particular, melamine-coated-steatite foam filler for use in a fuse comprising steatite coated in a melamine compound (e.g., plasticized melamine resin) and then heated to form crystalline foam filler are described. The foam filler may comprise steatite of substantially 3 times the melamine compound by weight and may be heated and then cooled to form the foam filler.
Claims16
A melamine-coated-steatite foam filler for use in a fuse comprising:
- a melamine compound;
- and
- a steatite of at least 2 times the melamine compound by weight, wherein the steatite is coated in the melamine compound.
A fuse comprising:
- a hollow body having a cavity therein;
- a fuse element disposed in the cavity;
- first and second end caps in electrical connection with the fuse element;
- and
- a melamine-coated-steatite foam (MCSF) filler disposed in the cavity around the fuse element, the MCSF filler comprising:
- a melamine compound;
- and
- a steatite of at least 2 times the melamine compound by weight, wherein the steatite is coated in the melamine compound.
5 more elements
A method of making a fuse comprising:
- inserting a fuse element into a cavity in a hollow fuse body;
- attaching a first end cap to the hollow fuse body and electrically connecting a first end of the fuse element to the first end cap;
- adding a steatite and melamine compound mixture to the cavity such that the steatite and melamine compound mixture are disposed around the fuse element, the steatite and melamine compound mixture comprising:
- a melamine compound;
- and
- a steatite of at least 2 times the melamine compound by weight, wherein the steatite is coated in the melamine compound;
- and
- attaching a second end cap to the hollow fuse body and electrically connecting a second end of the fuse element to the second end cap.
5 more elements
Dependencies are inferred from the claim text.