Patents
Patent data provided by The
European Patent Office
and updated through early 2009. Full text patent data loaded weekly coming soon.
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US7429785 (B2), filed
Oct 19, 2005
, published
Sep 30, 2008
- LITTELFUSE INC
A stacked arrangement of integrated circuit chips are bonded to a lead frame. Two side-by-side integrated circuit chips have bottom contact pads bonded to a lead frame structure having contact terminals. The two side-by-side integrated circuits have top...
US7367114 (B2), filed
Aug 26, 2002
, published
May 06, 2008
- LITTELFUSE INC
Methods of manufacturing a variety of circuit protection devices are provided as well as devices so manufactured. In an embodiment, a surface mount electrical device having a substrate and a pair of conductive electrodes connected to an electrical protection...
US4320369 (A), filed
Jan 21, 1980
, published
Mar 16, 1982
- LITTELFUSE INC
An electrical device, which preferably forms a plug-in relay unit, includes a terminal board assembly most advantageously formed by a pair of insulating plates made of thermoplastic material and between which are clamped the intermediate laterally extending...
US6046665 (A), filed
Jan 19, 1999
, published
Apr 04, 2000
- LITTELFUSE INC
An improved cable assembly for electrical overload protection, the cable assembly having a first cable, a second cable, a fusible link, and a protective housing. The first and second cables have a protective covering and an end portion extending past the...
US6282072 (B1), filed
Feb 23, 1999
, published
Aug 28, 2001
- LITTELFUSE INC
The present invention is an electrical circuit protection device having a PTC element with a first common electrode affixed to a first surface of the PTC element and at least two second electrodes affixed to a second surface of the PTC element. The at least...
US5880668 (A), filed
Aug 28, 1996
, published
Mar 09, 1999
- LITTELFUSE INC
Circuit protection devices comprising PTC elements and circuits containing such devices. The PTC element includes a crystalline conductive polymer composition comprising a conductive particulate filler grafted to a modified polyolefin. The modified polyolefin...
US5907272 (A), filed
Dec 19, 1996
, published
May 25, 1999
- LITTELFUSE INC
Circuit protection device having a PTC element in series with a fusible element. The device includes a PTC element having first and second electrodes in electrical contact with the PTC element. An insulating layer is disposed on the first and second electrodes...
US4486736 (A), filed
Nov 26, 1982
, published
Dec 04, 1984
- LITTELFUSE INC
Apparatus and methods for assembling a thermally-actuated cut-off link having a casing, a closure, split along its length to form a slot, a power lead, one end of which extends from the casing through a neutral passage formed in the closure, the other end of...
US6582647 (B1), filed
Sep 30, 1999
, published
Jun 24, 2003
- LITTELFUSE INC
The present invention provides a method for heat treating a polymer PTC composition to increase the peak resistivity of the composition making it especially well suited for high voltage applications. A polymer PTC composition having a melting point temperature...
US4504697 (A), filed
Apr 28, 1982
, published
Mar 12, 1985
- LITTELFUSE INC
A sealed electrical device like a relay includes a support base, a relay device on the inner side of the support base through which extends longitudinally-exposed terminals for feeding current to the relay device, and a housing having a relay-enclosing...
US6043966 (A), filed
May 13, 1999
, published
Mar 28, 2000
- LITTELFUSE INC
A printed circuit board assembly comprising a printed circuit board having a plurality of conductive traces deposited on a surface thereof to define a plurality of electrical circuit geometries. A plurality of thin film fuses are deposited on the printed...
US5923239 (A), filed
Dec 02, 1997
, published
Jul 13, 1999
- LITTELFUSE INC
A printed circuit board assembly comprising a printed circuit board having a plurality of conductive traces deposited on a surface thereof to define a plurality of electrical circuit geometries. A plurality of thin film fuses are deposited on the printed...
US5139443 (A), filed
Oct 31, 1990
, published
Aug 18, 1992
- LITTELFUSE INC
A fuse assembly has a one-piece molded housing providing alignment and guiding surfaces for insertion of a generally planar fuse assembly having side elements carrying a fuse link or diode therebetween. In one version the housing has an open bottom through...
US4997393 (A), filed
Mar 23, 1989
, published
Mar 05, 1991
- LITTELFUSE INC
A fuse assembly has a one-piece molded housing providing alignment and guiding surfaces for insertion of a generally planar fuse assembly having side elements carrying a fuse link or diode therebetween. In one version the housing has an open bottom through...
US6549114 (B2), filed
Aug 19, 1999
, published
Apr 15, 2003
- LITTELFUSE INC
An arrangement of voltage variable materials for the protection of electrical components from electrical overstress (EOS) transients. A device having a plurality of electrical leads, a ground plane and a layer of voltage variable material. The voltage variable...
