Assignee
L H CARBIDE CORP
US·39 granted patents·1 pending application·1,039 citations·filing 1983–2014
Top patents by PatentIndex Score
40 records- 0198US6163949AMethod for manufacturing long, slender lamina stack from nonuniform laminaeL H CARBIDE CORP·Filed 1999·Granted Dec 26, 2000·139 cites·16 claims
- 0295US4619028AApparatus for manufacture of laminated partsL H CARBIDE CORP·Filed 1983·Granted Oct 28, 1986·74 cites·35 claims
- 0390US9685264B2Die assembly and method for manufacturing wound motor laminated articleL H CARBIDE CORP·Filed 2013·Granted Jun 20, 2017·8 cites·17 claims
- 0488US6984913B2Lamination stack with center interlockL H CARBIDE CORP·Filed 2000·Granted Jan 10, 2006·28 cites·15 claims
- 0588US6742239B2Progressive stamping die assembly having transversely movable die station and method of manufacturing a stack of laminae therewithL H CARBIDE CORP·Filed 2002·Granted Jun 1, 2004·43 cites·8 claims
- 0687US5349741AMethod of making an interlocked core spaced for anneal penetrationL H CARBIDE CORP·Filed 1992·Granted Sep 27, 1994·54 cites·11 claims
- 0787US4738020AMethod for manufacture of laminated partsL H CARBIDE CORP·Filed 1986·Granted Apr 19, 1988·57 cites·9 claims
- 0885US5123155AApparatus and method for manufacturing laminated partsL H CARBIDE CORP·Filed 1991·Granted Jun 23, 1992·40 cites·16 claims
- 0985US5087849ALaminated parts and a method for manufacture thereofL H CARBIDE CORP·Filed 1988·Granted Feb 11, 1992·42 cites·2 claims
- 1084US5799387ALamina stack having a plurality of outer perimeter configurations and an apparatus and method for manufacturing said stackL H CARBIDE CORP·Filed 1996·Granted Sep 1, 1998·58 cites·32 claims
- 1183US5755023ALamina stack with at least one lamina layer having a plurality of discrete segments and an apparatus and method for manufacturing said stackL H CARBIDE CORP·Filed 1997·Granted May 26, 1998·47 cites·22 claims
- 1282US7062841B2Method of manufacturing a formable laminated stack in a progressive die assembly having a chokeL H CARBIDE CORP·Filed 2002·Granted Jun 20, 2006·25 cites·24 claims
- 1380US6745458B2Laminated magnetic core and method for makingL H CARBIDE CORP·Filed 2001·Granted Jun 8, 2004·21 cites·10 claims
- 1480US6484387B1Progressive stamping die assembly having transversely movable die station and method of manufacturing a stack of laminae therewithL H CARBIDE CORP·Filed 2000·Granted Nov 26, 2002·27 cites·19 claims
- 1578US7600312B2Die assembly for manufacturing lamina stacks that include formed featuresL H CARBIDE CORP·Filed 2005·Granted Oct 13, 2009·9 cites·14 claims
- 1678US5373622AApparatus and method for manufacturing laminated partsL H CARBIDE CORP·Filed 1992·Granted Dec 20, 1994·31 cites·12 claims
- 1775US6725756B2Two-piece metal punch constructionL H CARBIDE CORP·Filed 2001·Granted Apr 27, 2004·18 cites·8 claims
- 1875US5349740AMethod and progressive die assembly with separate blanking and stacking for the manufacture of laminated partsL H CARBIDE CORP·Filed 1993·Granted Sep 27, 1994·29 cites·28 claims
- 1971US6237214B1Apparatus for manufacturing laminated parts with center interlockL H CARBIDE CORP·Filed 1998·Granted May 29, 2001·27 cites·8 claims
- 2070US5377115AController for a progressive die assembly for the manufacture of laminated partsL H CARBIDE CORP·Filed 1993·Granted Dec 27, 1994·23 cites·39 claims
- 2169US6636137B1Ignition coil assemblyL H CARBIDE CORP·Filed 2000·Granted Oct 21, 2003·15 cites·13 claims
- 2269US5359763AProgressive die assembly apparatus with rotation and interlock for the manufacture of laminated partsL H CARBIDE CORP·Filed 1994·Granted Nov 1, 1994·24 cites·8 claims
- 2367US5918359AApparatus for manufacturing an interlocked core spaced for anneal penetrationL H CARBIDE CORP·Filed 1994·Granted Jul 6, 1999·25 cites·9 claims
- 2466US6131268AMethod for manufacturing a lamina stack having at least two differently shaped lamina layersL H CARBIDE CORP·Filed 1997·Granted Oct 17, 2000·25 cites·14 claims
- 2565US7337531B2Die assembly and method for manufacturing lamina stacks from a plurality of separate strips of stock materialL H CARBIDE CORP·Filed 2004·Granted Mar 4, 2008·7 cites·30 claims
- 2664US6192575B1Dual action indexing system and method for a die assemblyL H CARBIDE CORP·Filed 1998·Granted Feb 27, 2001·19 cites·9 claims
- 2762US7676906B2Method for manufacturing lamina stacks from a plurality of separate strips of stock materialL H CARBIDE CORP·Filed 2007·Granted Mar 16, 2010·2 cites·20 claims
- 2859US5960533AApparatus for manufacture of laminated partsL H CARBIDE CORP·Filed 1998·Granted Oct 5, 1999·22 cites·8 claims
- 2958US9479034B2Continuously formed annular laminated article and method for its manufactureL H CARBIDE CORP·Filed 2014·Granted Oct 25, 2016·0 cites·8 claims
- 3057US2014139067A1Die assembly and method for manufacturing wound motor laminated articleL H CARBIDE CORP·Filed 2013·Application pending·0 cites
- 3155US6195875B1Apparatus for manufacturing long, slender lamina stacks from nonuniform laminaeL H CARBIDE CORP·Filed 1999·Granted Mar 6, 2001·19 cites·4 claims
- 3254US5809638AMethod for manufacturing laminated parts with center interlockL H CARBIDE CORP·Filed 1992·Granted Sep 22, 1998·15 cites·19 claims
- 3354US5241138ACoreweighing system for closed-loop stock gauging controlL H CARBIDE CORP·Filed 1992·Granted Aug 31, 1993·15 cites·7 claims
- 3453US5604678AController for a progressive die assembly for the manufacture of limited partsL H CARBIDE CORP·Filed 1994·Granted Feb 18, 1997·13 cites·22 claims
- 3547US5881450ADual action indexing system and method for a die assemblyL H CARBIDE CORP·Filed 1996·Granted Mar 16, 1999·12 cites·25 claims
- 3645US6877214B2Method of manufacturing a stack of laminationsL H CARBIDE CORP·Filed 2002·Granted Apr 12, 2005·6 cites·20 claims
- 3744US6000119ALamina stack having a plurality of outer perimeter configurations and an apparatus and method for manufacturing said stackL H CARBIDE CORP·Filed 1997·Granted Dec 14, 1999·12 cites·15 claims
- 3838US5365021ACoreweighing system for closed-loop stock gauging controlL H CARBIDE CORP·Filed 1993·Granted Nov 15, 1994·4 cites·6 claims
- 3937US5550327ACoreweighing system for closed-loop stock gauging controlL H CARBIDE CORP·Filed 1994·Granted Aug 27, 1996·4 cites·13 claims
- 4036US6530142B2Dual action indexing system and method for a die assemblyL H CARBIDE CORP·Filed 2001·Granted Mar 11, 2003·0 cites·20 claims
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