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US 9,911,566 B2Granted
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.
Claims10
A melamine-coated-steatite foam filler for use in a fuse comprising:
- a mixture of particles, including:
- a melamine compound;
- and
- a steatite of at least 2 times the melamine compound by weight, wherein
- the mixture of particles is heatable such that the melamine compound is melted to bond to the steatite to form the melamine-coated-steatite foam filler, the melamine-coated-steatite foam filler having a rigid crystalline structure to contain an electric arc of the fuse.
2 more elements
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 mixture of particles, including:
- a melamine compound;
- and
- a steatite of at least 2 times the melamine compound by weight, wherein the mixture of particles is heatable such that the melamine compound is melted to bond to the steatite to form the melamine-coated-steatite foam filler,
- the melamine-coated-steatite foam (MCSF) filler having a rigid crystalline structure configured to contain an electric arc of the fuse.
6 more elements
Dependencies are inferred from the claim text.