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Hamilton Sundstrand Corporation patents (2014 archive)


Recent patent applications related to Hamilton Sundstrand Corporation. Hamilton Sundstrand Corporation is listed as an Agent/Assignee. Note: Hamilton Sundstrand Corporation may have other listings under different names/spellings. We're not affiliated with Hamilton Sundstrand Corporation, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "H" | Hamilton Sundstrand Corporation-related inventors


12/25/14 / #20140377487

Suction-blow-molded aircraft ducting

A duct of an aircraft includes a hollow three-dimensional geometry shape that is formed of thermoplastic by suction-blow molding. The thermoplastic is filled or unfilled amorphous or semi-crystalline. ... Hamilton Sundstrand Corporation

12/25/14 / #20140377079

Propeller rotor and engine overspeed control

An electromagnetic device for overspeed control of a propeller driven by an engine shaft comprises a clutch, an eddy-current coupler, and an electromagnetic brake. The clutch is disposed to mechanically decouple the propeller from the engine shaft. ... Hamilton Sundstrand Corporation

12/25/14 / #20140376284

Systems and methods for tuning the control of a shunt active power filter over a variable frequency

Embodiments relate to systems and methods for tuning the control of a shunt active power filter over a variable frequency. In aspects, a shunt active power filter is provided to filter current harmonics from the output delivered to a dc load via a recitifier. ... Hamilton Sundstrand Corporation

12/25/14 / #20140376283

Systems and methods for active damping device for stabilizing a power grid of active sources and loads

Embodiments relate to systems and methods for an active damping device for stabilizing a power grid of active sources and loads. In power system networks or grids which incorporate active power sources and active loads, such as motors, the output voltage transfer function can exhibit instabilities due to the presence of poles in the positive real portion (right hand side) of the complex plane. ... Hamilton Sundstrand Corporation

12/25/14 / #20140375405

Systems and methods for inductively coupled damper for direct current power systems

An electrical system for generating a reliable power source for starting an engine, including a first interface to a direct current power source and a second interface to an inverter. The inverter is coupled to a generator. ... Hamilton Sundstrand Corporation

12/25/14 / #20140375334

Systems and methods for selecting circuit element values for a hybrid active power filter operating over a variable frequency

Embodiments relate to systems and methods for selecting circuit element values for a hybrid active power filter operating over a variable frequency. In aspects, a hybrid active power filter (hapf) circuit can eliminate current harmonics present in an ac power source which are caused by an ac load network.—in implementations, the ac voltage source—may be a source having a variable frequency range, for instance 360-800 hz. ... Hamilton Sundstrand Corporation

12/25/14 / #20140375233

Permanent magnet motor control

A three-phase permanent magnet motor is controlled by generating two-phase control signals. A rotation speed value is generated representing a rotation speed of the permanent magnet motor based on a q-current reference value and a q-current feedback value, the q-current reference value and the q-current feedback value corresponding to a q-phase winding. ... Hamilton Sundstrand Corporation

12/18/14 / #20140369101

Method of deriving switch current signals in a rectifier

A method of deriving synchronous switch currents for a three-phase vienna-type active rectifier that includes the step of generating gate driver signals for each phase of the rectifier by pulse width modulation, wherein the gate driver signals include a top gate driver signal, a clamp gate driver signal and a bottom gate driver signal, and the step of deriving synchronous switch current signals from the gate driver signal, wherein the synchronous switch current signals include a top gate switch current signal, a clamp gate switch current signal and a bottom gate switch current signal.. . ... Hamilton Sundstrand Corporation

12/18/14 / #20140369092

Method of reducing input current distortion in a rectifier

A method is disclosed for reducing input current harmonic distortion in a vienna-type active rectifier that includes the steps of sensing voltage values from upper and lower halves of a dc bus associated with the rectifier, determining an average of the sensed voltage values, calculating upper and lower scale factors by dividing the sensed voltage values with the averaged sensed voltage value, rescaling a reference signal from a controller using the upper and lower calculated scale factors, and forward feeding the rescaled reference signal from the controller to a pulse width modulator to obtain a gate driver signal for power semiconductor switches of the rectifier.. . ... Hamilton Sundstrand Corporation

12/18/14 / #20140368075

Permanent magnet synchronous machines with magnetic flux regulation

An electrical machine has a permanent magnet component and a winding armature. The permanent magnet component is spaced apart for the winding armature. ... Hamilton Sundstrand Corporation

12/18/14 / #20140368074

Motor including flexible printed circuit board stator

A motor having a compact and lightweight design may include a stator provided by a flexible printed circuit (flex circuit). The flex circuit may include a plurality of etched windings that provide coils for a plurality of motor phases. ... Hamilton Sundstrand Corporation

12/18/14 / #20140367543

Cabin supply bracket

A cabin supply bracket for a cabin supply duct assembly is provided. The cabin supply bracket includes a base plate with a first, second, and third mounting hole distributed in a substantially triangular arrangement. ... Hamilton Sundstrand Corporation

12/18/14 / #20140366966

High pressure check valve flange joint

A valve flange joint includes a valve flange and first and second duct flanges. The first and second duct flanges include respective first and second mating portions. ... Hamilton Sundstrand Corporation

12/18/14 / #20140366965

Integral filter and regulator for valve

A valve assembly comprises a closure element disposed in a flow control duct, a fluid-driven actuator assembly, a shaft operable to translate linear movement of the actuator assembly into rotation of the closure element, and an integral filter and pressure regulator unit disposed in line with an actuator fluid supply passage. The actuator fluid supply passage extends between the flow control duct and the actuator assembly. ... Hamilton Sundstrand Corporation

12/18/14 / #20140366964

Reverse flow relief valve

A bleed valve system includes a bleed valve, a valve regulator, a valve actuator and a reverse flow relief valve. The bleed valve is opened and closed to control a flow of bleed air from an upstream inlet to a downstream outlet. ... Hamilton Sundstrand Corporation








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This listing is an abstract for educational and research purposes is only meant as a recent sample of applications filed, not a comprehensive history. Freshpatents.com is not affiliated or associated with Hamilton Sundstrand Corporation in any way and there may be associated servicemarks. This data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Hamilton Sundstrand Corporation with additional patents listed. Browse our Agent directory for other possible listings. Page by FreshPatents.com

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