Inventor · disambiguated record
David N. Schmaling
Also filed as: SCHMALING DAVID N
42 granted patents·3 pending applications·893 citations·filing 1984–2022
98Inventor score
Files withSIKORSKY AIRCRAFT CORP20LOCKHEED CORP9UNITED TECHNOLOGIES CORP9SCHMALING DAVID N4MEYER LEON M1
Top patents by PatentIndex Score
45 records- 0198US6848886B2SnubberSIKORSKY AIRCRAFT CORP·Filed 2003·Granted Feb 1, 2005·93 cites·20 claims
- 0294US7585153B1Upper rotor control system for a counter-rotating rotor systemSIKORSKY AIRCRAFT CORP·Filed 2006·Granted Sep 8, 2009·39 cites·17 claims
- 0393US7530790B2Rotor blade folding systemSIKORSKY AIRCRAFT CORP·Filed 2006·Granted May 12, 2009·34 cites·22 claims
- 0490US4621980AFiber reinforced composite spar for a rotary wing aircraftUNITED TECHNOLOGIES CORP·Filed 1984·Granted Nov 11, 1986·68 cites·4 claims
- 0587US7841829B2Rotor system with pitch flap couplingSIKORSKY AIRCRAFT CORP·Filed 2006·Granted Nov 30, 2010·22 cites·24 claims
- 0683US7047596B2Structural bushing application for highly loaded composites lugsSIKORSKY AIRCRAFT CORP·Filed 2003·Granted May 23, 2006·45 cites·14 claims
- 0782US8142158B2Compact load path swashplate assemblySCHMALING DAVID N·Filed 2005·Granted Mar 27, 2012·19 cites·17 claims
- 0881US11999472B2Rotor blade non-counterbored retention assembly via a sliding clamped bushingLOCKHEED CORP·Filed 2021·Granted Jun 4, 2024·2 cites·20 claims
- 0981US10858096B1Folding horn concept for rigid rotor blade foldLOCKHEED CORP·Filed 2019·Granted Dec 8, 2020·3 cites·19 claims
- 1081US5690474AOptimized composite flexbeam for helicopter tail rotorsSIKORSKY AIRCRAFT CORP·Filed 1996·Granted Nov 25, 1997·64 cites·20 claims
- 1180US5431538AHybrid composite flexbeam for a helicopter bearingless main rotor assemblyUNITED TECHNOLOGIES CORP·Filed 1993·Granted Jul 11, 1995·45 cites·24 claims
- 1279US6695583B2Snubber-vibration damper system for a bearingless main rotorSIKORSKY AIRCRAFT CORP·Filed 2002·Granted Feb 24, 2004·34 cites·25 claims
- 1375US7686584B2Elastomeric bearing with heatable shimsSIKORSKY AIRCRAFT CORP·Filed 2006·Granted Mar 30, 2010·10 cites·22 claims
- 1475US5738494AOptimized composite flexbeam for helicopter rotorsSIKORSKY AIRCRAFT CORP·Filed 1996·Granted Apr 14, 1998·49 cites·5 claims
- 1574US11292587B2Hingeless helicopter rotor with high stiffness and low drag configurationLOCKHEED CORP·Filed 2019·Granted Apr 5, 2022·2 cites·18 claims
- 1673US5460487APitch adjustment assembly for bearingless main rotorsUNITED TECHNOLOGIES CORP·Filed 1994·Granted Oct 24, 1995·46 cites·12 claims
- 1771US8578753B2Impact test fixture with simulated centrifugal forceSCHMALING DAVID N·Filed 2010·Granted Nov 12, 2013·4 cites·19 claims
- 1869US4930983AHybrid helicopter rotor hub retention plateUNITED TECHNOLOGIES CORP·Filed 1988·Granted Jun 5, 1990·26 cites·8 claims
- 1968US6318527B1Inertial vibration isolator spring for helicopterSIKORSKY AIRCRAFT CORP·Filed 1999·Granted Nov 20, 2001·23 cites·6 claims
- 2066US8882462B2Lead stop for rotor system with fluid-elastomeric lead/lag damperSCHMALING DAVID N·Filed 2008·Granted Nov 11, 2014·8 cites·14 claims
- 2165US5372479AFlexbeam for a helicopter bearingless main rotor assemblyUNITED TECHNOLOGIES CORP·Filed 1993·Granted Dec 13, 1994·36 cites·20 claims
- 2263US4793727ATwo-step composite jointUNITED TECHNOLOGIES CORP·Filed 1987·Granted Dec 27, 1988·24 cites·2 claims
- 2361US10272996B2Abrasion resistant pivot bearingSIKORSKY AIRCRAFT CORP·Filed 2016·Granted Apr 30, 2019·2 cites·14 claims
- 2461US5120195AClevis joint capable of accommodating substantial pivotal motion between its joined members and loading along its axisSCHMALING DAVID N·Filed 1990·Granted Jun 9, 1992·32 cites·6 claims
- 2558US9616996B2Stiff inplane elastomeric rotorheadSIKORSKY AIRCRAFT CORP·Filed 2013·Granted Apr 11, 2017·2 cites·20 claims
- 2657US5286167ASpar-to-hub joint for a flexbeam helicopter rotorUNITED TECHNOLOGIES CORP·Filed 1992·Granted Feb 15, 1994·28 cites·14 claims
- 2756US11884387B2Rotor assembly connectable to rotor hub and having pitch controlLOCKHEED CORP·Filed 2021·Granted Jan 30, 2024·0 cites·21 claims
- 2856US7798442B2Rotor assemblies having automatic blade folding systemsSIKORSKY AIRCRAFT CORP·Filed 2006·Granted Sep 21, 2010·5 cites·23 claims
- 2956US5499903ASnubber bearing mounting assembly for bearingless rotorsUNITED TECHNOLOGIES CORP·Filed 1994·Granted Mar 19, 1996·26 cites·18 claims
- 3055US9441495B2Rotary wing aircraft pitch beam attachment with anti-rotation plate designSIKORSKY AIRCRAFT CORP·Filed 2013·Granted Sep 13, 2016·1 cites·19 claims
- 3155US6942455B2Strain isolated trim tabSIKORSKY AIRCRAFT CORP·Filed 2003·Granted Sep 13, 2005·18 cites·14 claims
- 3254US11753156B2Main rotor blade using integral metallic center block strap assemblyLOCKHEED CORP·Filed 2020·Granted Sep 12, 2023·0 cites·19 claims
- 3354US5562416AHelicopter rotor blade mounting assemblySIKORSKY AIRCRAFT CORP·Filed 1995·Granted Oct 8, 1996·31 cites·9 claims
- 3450US11066158B2Low drag high capacity pitch bearing for rigid rotor aircraftLOCKHEED CORP·Filed 2019·Granted Jul 20, 2021·0 cites·17 claims
- 3549US5954480AVibration isolator for rotorcraftSIKORSKY AIRCRAFT CORP·Filed 1997·Granted Sep 21, 1999·25 cites·19 claims
- 3648US5035576APropeller blade pin attachmentUNITED TECHNOLOGIES CORP·Filed 1989·Granted Jul 30, 1991·17 cites·4 claims
- 3747US11498669B1Rotor systemLOCKHEED CORP·Filed 2021·Granted Nov 15, 2022·0 cites·14 claims
- 3845US2005092111A1Non-destructive diagnostic apparatus for identifying defect type in core composite structuresFiled 2003·Application pending·0 cites
- 3943US11299265B2Rotor blade folding systemLOCKHEED CORP·Filed 2019·Granted Apr 12, 2022·0 cites·19 claims
- 4042US9884680B2Elastomeric bearing system motion limiterMEYER LEON M·Filed 2008·Granted Feb 6, 2018·3 cites·12 claims
- 4138US10589849B2Trim tab retention system, an aircraft employing same and a method of retaining a trim tab within a blade housingSIKORSKY AIRCRAFT CORP·Filed 2016·Granted Mar 17, 2020·0 cites·13 claims
- 4237US11104431B2Rotor blade snubber retainer for a rotary wing aircraftSIKORSKY AIRCRAFT CORP·Filed 2016·Granted Aug 31, 2021·0 cites·14 claims
- 4337US2003235499A1Multi focus hemi-spherical elastic bearingFiled 2002·Application pending·0 cites
- 4436US5901616AInertial mass for vibration isolatorsSIKORSKY AIRCRAFT CORP·Filed 1997·Granted May 11, 1999·7 cites·18 claims
- 4535US2023249811A1Compact propeller blade retention assemblyLOCKHEED CORP·Filed 2022·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →