51
Jacek F Gieras, Lubomir A Ribarov: Resistive-inductive propeller blade de-icing system including contactless power supply. HAMILTON SUNDSTRAND CORPORATION, Cantor Colburn, May 2, 2017: US09638044

An aircraft propeller de-icing system comprises at least one propeller blade coupled to a rotatable prop assembly. The prop assembly is configured to rotate in response to rotatably driving a propeller shaft. At least one resistive-inductive heating unit is coupled to the at least one propeller blad ...


52
Gregory I Rozman, Jacek F Gieras: Variable speed constant frequency power generator including permanent magnet exciter. HAMILTON SUNDSTRAND CORPORATION, Cantor Colburn, January 17, 2017: US09548691

A variable speed constant frequency (VSCF) power generator includes a rotating direct current (DC) power source, rotating multi-phase generator main field windings to generate a rotating alternating current (AC) power, and a rotating inverter configured to control alternating current (AC) generator ...


53
Jacek F Gieras, Gregory I Rozman: Solenoid actuators and solenoid actuated devices. Hamilton Sundstrand Corporation, Locke Lord, Scott D Wofsy, Christopher J CilliƩ, January 2, 2018: US09859047

An electromagnetic solenoid actuator includes a ferromagnetic core body defining an axis, a winding supported by the core body, and a ferromagnetic plunger body translatable within the core body along the axis. The core body has a fixed height gap that extends about the axis and the plunger body and ...


54
Jacek F Gieras, Peng Wang, Lisa A Prill, Pei Yuan Peng, Bryan Slewert, Robert H Dold: Electromagnetic coupling with a slider layer. Otis Elevator Company, Carlson Gaskey & Olds, March 25, 2014: US08678141

An exemplary electromagnetic coupling device includes an electromagnet and a vane member that is selectively magnetically coupled with the electromagnet. A non-magnetic slider layer is supported on one of the electromagnet or the vane member such that the slider layer is between the electromagnet an ...


55
Gregory I Rozman, Jacek F Gieras, Steven J Moss: Rotating diode assembly including overvoltage protection circuit. Hamilton Sundstrand Corporation, Cantor Colburn, January 27, 2015: US08941341

A brushless wound field synchronous generator configured to generate an output power to drive an electrical load includes a rotating rectifier assembly. The rotating rectifier assembly includes a rotating diode assembly and a field effect transistor (FET) to control voltage across the rotating diode ...


56
Jacek F Gieras, Gary M McBrien, Leo J Veilleux Jr: Flux bypass for solenoid actuator. Hamilton Sundstrand Corporation, Kinney & Lange P A, May 24, 2016: US09347579

An electromagnetic solenoid actuator comprises a ferromagnetic core and a ferromagnetic plunger. The ferromagnetic core supports a plurality of windings, and is oriented along an axis. The ferromagnetic plunger is aligned axially with the ferromagnetic core, and is translatable along the axis to var ...


57
Gregory I Rozman, Steven J Moss, Jacek F Gieras: Auxiliary winding for extended current measurement. Hamilton Sundstrand Corporation, Kinney & Lange P A, October 11, 2016: US09466983

A power controller controls power to a load and includes a primary current sensor, a controller and a current source. The primary current sensor includes a primary conductor and an auxiliary conductor. The primary conductor carries a primary current to the load and the auxiliary conductor carries an ...


58
Gregory I Rozman, Jacek F Gieras: Electrical machines with integrated power and control and including a current source inverter. Hamilton Sundstrand Corporation, Carlson Gaskey & Olds, May 21, 2013: US08446024

A machine has a housing that includes a plurality of stator coils to be positioned adjacent to a rotor. A switching network includes a plurality of transistors and diodes connected to the coils. A current source inverter is provided by a switching network, a pair of inductors positioned on power rai ...


59
Jacek F Gieras, Sastry V Vedula, Pei Yuan Peng, Bryan Siewert: Electromagnet and elevator door coupler. Otis Elevator Company, Carlson Gaskey & Olds PC, April 23, 2013: US08424652

An electromagnetic coupling device includes a vane member and an electromagnet. The electromagnet includes a core having a plurality of poles comprising at least four poles. An electrically conductive winding has a first portion surrounding a first one of the poles and a second portion surrounding a ...


60
Jacek F Gieras, Gregory I Rozman, Steven J Moss: Permanent magnet machine for integrated starter generator. Hamilton Sundstrand Corporation, Kinney & Lange P A, August 8, 2017: US09729036

An integrated starter-generator (ISG) system includes a flux-regulated permanent magnet machine (PMM), a wound-field synchronous machine, and a control coil controller. The flux-regulated PMM includes a stationary portion having a control coil and a plurality of permanent magnets, and a rotating por ...