Patents by Inventor Christopher L. Winslow
Christopher L. Winslow has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10703466Abstract: A propulsor hub is provided and includes a casing including an inner annular part and blade-connection parts extending outwardly from the inner annular part, a liner having inner and outer opposed radial ends, the liner being disposed about a corresponding one of the blade-connection parts with the inner radial end thereof at a distance from the inner annular part and a weighted element securely disposed about the corresponding one of the blade-connection parts to abut the outer radial end of the liner.Type: GrantFiled: May 17, 2016Date of Patent: July 7, 2020Assignee: SIKORSKY AIRCRAFT CORPORATIONInventors: David A. Darrow, Jr., Ron William Waldo, Christopher L. Winslow
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Patent number: 10444254Abstract: A system and method for receiving a plurality of first inputs from a transducer, where the plurality of first inputs correspond to vibrations of a rotational machine, and filtering the plurality of first inputs to derive a frequency of interest. The system and method then generates a sinusoidal signal at the frequency of interest and a pulse train of one or multiple pulses per revolution at the frequency of interest from the sinusoidal signal. The system and method further identifies a first pulse at a zero crossing within the pulse train and counts zero crossings to define blocks of data for use in time synchronous averaging calculations.Type: GrantFiled: October 19, 2015Date of Patent: October 15, 2019Assignee: SIKORSKY AIRCRAFT CORPORATIONInventors: Christopher L. Winslow, Biqing Wu, Mark W. Davis
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Publication number: 20180141646Abstract: A propulsor hub is provided and includes a casing including an inner annular part and blade-connection parts extending outwardly from the inner annular part, a liner having inner and outer opposed radial ends, the liner being disposed about a corresponding one of the blade-connection parts with the inner radial end thereof at a distance from the inner annular part and a weighted element securely disposed about the corresponding one of the blade-connection parts to abut the outer radial end of the liner.Type: ApplicationFiled: May 17, 2016Publication date: May 24, 2018Inventors: David A. Darrow, JR., Ron William Waldo, Christopher L. Winslow
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Publication number: 20170336430Abstract: A system and method for receiving a plurality of first inputs from a transducer, where the plurality of first inputs correspond to vibrations of a rotational machine, and filtering the plurality of first inputs to derive a frequency of interest. The system and method then generates a sinusoidal signal at the frequency of interest and a pulse train of one or multiple pulses per revolution at the frequency of interest from the sinusoidal signal. The system and method further identifies a first pulse at a zero crossing within the pulse train and counts zero crossings to define blocks of data for use in time synchronous averaging calculations.Type: ApplicationFiled: October 19, 2015Publication date: November 23, 2017Inventors: Christopher L. Winslow, Biqing Wu, Mark W. Davis
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Patent number: 9452824Abstract: Embodiments are directed to obtaining a first analog signal corresponding to a position error between a commanded gang output of a plurality of electro-mechanical actuators configured to be run in parallel with one another and a measured gang output of the plurality of electro-mechanical actuators, obtaining a second analog signal corresponding to an output torque, and processing, by a circuit, the first analog signal and the second analog signal to generate and output a discrete that indicates a status of the torque in terms of direction and magnitude.Type: GrantFiled: August 26, 2015Date of Patent: September 27, 2016Assignee: SIKORSKY AIRCRAFT CORPORATIONInventors: Bryan S. Cotton, Matthew Harrigan, Christopher L. Winslow
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Publication number: 20150360771Abstract: Embodiments are directed to obtaining a first analog signal corresponding to a position error between a commanded gang output of a plurality of electro-mechanical actuators configured to be run in parallel with one another and a measured gang output of the plurality of electro-mechanical actuators, obtaining a second analog signal corresponding to an output torque, and processing, by a circuit, the first analog signal and the second analog signal to generate and output a discrete that indicates a status of the torque in terms of direction and magnitude.Type: ApplicationFiled: August 26, 2015Publication date: December 17, 2015Inventors: Bryan S. Cotton, Matthew Harrigan, Christopher L. Winslow
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Patent number: 9193455Abstract: Embodiments are directed to obtaining a first analog signal corresponding to a position error between a commanded gang output of a plurality of electro-mechanical actuators configured to be run in parallel with one another and a measured gang output of the plurality of electro-mechanical actuators, obtaining a second analog signal corresponding to an output torque, and processing, by a circuit, the first analog signal and the second analog signal to generate and output a discrete that indicates a status of the torque in terms of direction and magnitude.Type: GrantFiled: February 19, 2014Date of Patent: November 24, 2015Assignee: SIKORSKY AIRCRAFT CORPORATIONInventors: Bryan S. Cotton, Matthew Harrigan, Christopher L. Winslow
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Publication number: 20150232177Abstract: Embodiments are directed to obtaining a first analog signal corresponding to a position error between a commanded gang output of a plurality of electro-mechanical actuators configured to be run in parallel with one another and a measured gang output of the plurality of electro-mechanical actuators, obtaining a second analog signal corresponding to an output torque, and processing, by a circuit, the first analog signal and the second analog signal to generate and output a discrete that indicates a status of the torque in terms of direction and magnitude.Type: ApplicationFiled: February 19, 2014Publication date: August 20, 2015Applicant: SIKORSKY AIRCRAFT CORPORATIONInventors: Bryan S. Cotton, Matthew Harrigan, Christopher L. Winslow
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Patent number: 9026274Abstract: An apparatus is described comprising: at least one processor; and memory storing instructions that, when executed by the at least one processor, cause the apparatus to: regulate an operation of a motor based at least in part on a control imposed on an output torque of the motor and a rate of change of a speed of the motor.Type: GrantFiled: August 31, 2012Date of Patent: May 5, 2015Assignee: Sikorsky Aircraft CorporationInventors: Jonathan Hartman, Timothy Fred Lauder, Russell L. Halstead, Christopher L. Winslow, Michael L. Hardy
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Publication number: 20140067166Abstract: An apparatus is described comprising: at least one processor; and memory storing instructions that, when executed by the at least one processor, cause the apparatus to: regulate an operation of a motor based at least in part on a control imposed on an output torque of the motor and a rate of change of a speed of the motor.Type: ApplicationFiled: August 31, 2012Publication date: March 6, 2014Applicant: SIKORSKY AIRCRAFT CORPORATIONInventors: Jonathan Hartman, Timothy Fred Lauder, Russell L. Halstead, Christopher L. Winslow, Michael L. Hardy
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Patent number: 6695578Abstract: A bleed valve assembly includes a valve poppet having a bleed portion and a base portion separated by a radially extending flange. The radially extending flange is located about the perimeter of the valve poppet to engage the valve seat on one side and receive a biasing member on the other. The flange engages the valve seat such that initial valve performance is similar to a disk valve, i.e., soft seating and very low leakage when closed. A plurality of openings extend through the bleed portion such that partial open operation of the bleed valve assembly is particularly tailored for a desired flow. As the valve poppet of the present invention moves off the valve seat, the initial gain is very low and then the gain increases steadily as more openings are exposed.Type: GrantFiled: December 19, 2001Date of Patent: February 24, 2004Assignee: Sikorsky Aircraft CorporationInventors: Christopher L. Winslow, Alejandro Anduze
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Publication number: 20030111627Abstract: A bleed valve assembly includes a valve poppet having a bleed portion and a base portion separated by a radially extending flange. The radially extending flange is located about the perimeter of the valve poppet to engage the valve seat on one side and receive a biasing member on the other. The flange engages the valve seat such that initial valve performance is similar to a disk valve, i.e., soft seating and very low leakage when closed. A plurality of openings extend through the bleed portion such that partial open operation of the bleed valve assembly is particularly tailored for a desired flow. As the valve poppet of the present invention moves off the valve seat, the initial gain is very low and then the gain increases steadily as more openings are exposed.Type: ApplicationFiled: December 19, 2001Publication date: June 19, 2003Inventors: Christopher L. Winslow, Alejandro Anduze
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Patent number: 5381692Abstract: A bearing assembly monitoring system provides continuous, real time monitoring of the operating condition of a powertrain support bearing assembly and real time alarm signals indicative of degradation and/or impending catastrophic failure thereof. One embodiment of the monitoring system includes a vibration sensing device, first and second primary temperature sensing devices, an ambient temperature sensing device, vibration and temperature signal processing subcircuits, and an alarm subsystem. The vibration sensing device monitors complex vibration signals emanating from the bearing assembly and provides signals corresponding thereto. The vibration signal processing circuit filters such complex vibration signals to provide a predetermined bandwidth thereof that are converted to stabilized DC voltage signals which are compared to reference voltages corresponding to higher than normal and excessive vibration levels. Exceedance of such reference voltages generates a corresponding vibration alarm signal.Type: GrantFiled: December 9, 1992Date of Patent: January 17, 1995Assignee: United Technologies CorporationInventors: Christopher L. Winslow, John A. Roncallo, William C. Boyce, Robert T. Bonitz, Bruce E. Zepke, Michael W. Hawman