Inventor · disambiguated record
Norval J. Wiemken
Also filed as: WIEMKEN NORVAL J
10 granted patents·197 citations·filing 1994–2003
91Inventor score
Files withCATERPILLAR INC10
Top patents by PatentIndex Score
10 records- 0189US6951204B2Hydraulic fuel injection system with independently operable direct control needle valveCATERPILLAR INC·Filed 2003·Granted Oct 4, 2005·27 cites·38 claims
- 0284US7278593B2Common rail fuel injectorCATERPILLAR INC·Filed 2003·Granted Oct 9, 2007·25 cites·17 claims
- 0381US5499612ADual-function clamping assembly adapted for a hydraulically-actuated fuel injectorCATERPILLAR INC·Filed 1994·Granted Mar 19, 1996·48 cites·5 claims
- 0479US6431472B1Fuel injector nozzle with outwardly opening check valveCATERPILLAR INC·Filed 2000·Granted Aug 13, 2002·19 cites·13 claims
- 0570US5901686AFluid seal for cyclic high pressures within a fuel injectorCATERPILLAR INC·Filed 1997·Granted May 11, 1999·23 cites·14 claims
- 0662US5871155AHydraulically-actuated fuel injector with variable rate return springCATERPILLAR INC·Filed 1997·Granted Feb 16, 1999·20 cites·20 claims
- 0755US5870995ASpace saving high pressure fluid supply clamp for a fuel injectorCATERPILLAR INC·Filed 1997·Granted Feb 16, 1999·15 cites·20 claims
- 0852US6955114B2Three way valve and electro-hydraulic actuator using sameCATERPILLAR INC·Filed 2003·Granted Oct 18, 2005·5 cites·33 claims
- 0950US7077381B2Desensitizing armature air gap to component distortion in a fuel injectorCATERPILLAR INC·Filed 2001·Granted Jul 18, 2006·4 cites·22 claims
- 1045US5682861AFluid seal for cyclic high pressures within a fuel injectionCATERPILLAR INC·Filed 1996·Granted Nov 4, 1997·11 cites·17 claims
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