Nancy H Ulerich

7207768, Apr 24, 2007

Jan 15, 2005

11/035712

Thomas J. Gordon - Winter Springs FL, US
William Ryan - Oviedo FL, US
Lawrence Lee Ross - Freeport PA, US
Brian D. Ottinger - Pittsburgh PA, US
Richard D. Holm - Pittsburgh PA, US
Nicholas D'Amico - Irwin PA, US
Phillip W. Gravett - Orlando FL, US
Nancy Ulerich - Longwood FL, US

Siemens Power Generation, Inc. - Orlando FL

F01B 25/26

415118, 416 61

Aspects of the invention related to a system for providing advance notice of impending contact between a stationary component and a rotating component in a turbine engine. For example, the system can be used to warn of potential contact between a seal holder and a rotor disk in the compressor section of the engine. In one embodiment, a pad or other component can be provided on the stationary seal holder. If the seal holder and the rotor disk approach each other during operation, the pad can contact the rotor disk prior to actual contact between the seal holder and the rotor disk. An optical and/or an acoustic signal can be generated by such contact. The signals can be detected remotely from the point of contact by a signal detection device, thereby avoiding the need to pass wires through the compressor section.

8515711, Aug 20, 2013

Oct 21, 2010

12/909194

David J. Mitchell - Oviedo FL, US
Ramesh Subramanian - Oviedo FL, US
Nancy H. Ulerich - Longwood FL, US
Paul J. Zombo - Cocoa FL, US

Siemens Energy, Inc. - Orlando FL

G06F 11/30
G06F 11/00

702183, 702116, 702187, 702188

A diagnostic system and method for monitoring operating conditions of turbine machine components () that comprise one or more non-contact sensors () that detect an operating condition of a turbine component () over a defined region of the component. In addition, point sensors () are provided that detect and monitor the same operating condition within the defined region. Data generated from the point sensor () is used to calibrate the non-contact sensor () and the data generated by the non-contact sensor ().

20130266420, Oct 10, 2013

Nov 29, 2012

13/688299

GETNET S. KIDANE - ORLANDO FL, US
UPUL P. DESILVA - OVIEDO FL, US
CHENGLI HE - ORLANDO FL, US
NANCY H. ULERICH - LONGWOOD FL, US

G01B 11/02
F01D 25/00

415118, 25022714

A gas turbine includes first and second parts having outer surfaces located adjacent to each other to create an interface where wear occurs. A wear probe is provided for monitoring wear of the outer surface of the first part, and includes an optical guide having first and second ends, wherein the first end is configured to be located flush with the outer surface of the first part. A fiber bundle includes first and second ends, the first end being located proximate to the second end of the optical guide. The fiber bundle includes a transmit fiber bundle comprising a first plurality of optical fibers coupled to a light source, and a receive fiber bundle coupled to a light detector and configured to detect reflected light. A processor is configured to determine a length of the optical guide based on the detected reflected light.

20140064326, Mar 6, 2014

Aug 7, 2013

13/961292

Heiko Claussen - Plainsboro NJ, US
Justinian Rosca - West Windsor NJ, US
Michelle xiaohong Yan - Princeton NJ, US
Upul P. DeSilva - Oviedo FL, US
Nancy H. Ulerich - Longwood FL, US

SIEMENS ENERGY, INC. - Orlando FL
SIEMENS CORPORATION - Iselin NJ

G01K 11/24

374117

An acoustic signal traversing a hot gas is sampled at a source and a receiver and is represented in overlapping windows that maximize useable signal content. Samples in each window are processed to represented in different sparsified bins in the frequency domain. Determining a signal delay between the source and the receiver from a summation of maximum smoothed coherence transform cross-correlation values of different data windows wherein a sparseness of a mean smoothed coherence transform cross-correlation of windows is maximized. Determining a set of delay times wherein outliers are deleted to estimate a time of flight from which a temperature of the hot gas is calculated.

57952850, Aug 18, 1998

Oct 21, 1996

8/734660

David Francis McLaughlin - Oakmont PA
Nancy Hamp Ulerich - Pittsburgh PA

B09B 300
B09C 106
C03B 516

588256

A system for treating contaminated sediments dredged from waterways is disclosed. Dredged sediments are divided into coarse and fine fractions. The coarse fraction is washed to remove contaminants. The fine fraction and the contaminants removed from the coarse fraction are admixed, followed by filtering to produce a dewatered fraction. The dewatered fraction is then melted in a plasma melter to form a molten mass of glass or slag. The molten mass is then cooled to form a stable, low-leachability product. During the plasma melting operation, organic contaminants are destroyed and contaminants such as heavy metals are contained within the matrix of the melted glass or slag. After cooling the melted material may be provided in the form of aggregate, granules or fibers useful for various applications such as road fill, roofing granules and rock wool.

51156725, May 26, 1992

Feb 11, 1991

7/653574

James L. McShane - Churchill Boro PA
Nancy H. Ulerich - Monroeville PA

Westinghouse Electric Corp. - Pittsburgh PA

E03B 707
F16K 3700

73596

A system and method for determining the condition of one or more parameters of a valve, e. g. , particularly a check valve in a fluid carrying pipe, by monitoring fluid turbulence downstream of the valve. An ultrasonic transmitter-receiver transducer pair provides a signal modulated by the fluid turbulence, which signal is demodulated and processed to obtain a signature or other signal indicative of the valve condition. The processes signature signal may additionally be compared with a measure of flow rate determined just upstream from the valve. By operating the ultrasonic system at high frequency and using appropriate detecting circuitry, low frequency interference from mechanical shocks and vibrations is avoided, yielding a reliable detection of the flow turbulence caused by the valve.

20160313203, Oct 27, 2016

Apr 21, 2015

14/691605

- Orlando FL, US
Nancy H. Ulerich - Longwood FL, US
Zainul Momin - Winter Park FL, US
Justinian Rosca - West Windsor NJ, US

G01L 19/06
G01M 15/14

The flame status of a group of gas turbine combustors is acoustically monitored using dynamic pressure sensors within the combustor. Dynamic pressure sensor output signals are received from the sensors and processed to determine flame status. The signals are processed both by performing a correlation analysis within each combustor and by applying a wavelet-based flame detection algorithm to each output signal. A flame is determined to be present based on the correlation analysis and the wavelet-based flame detection algorithm. The wavelet-based flame detection algorithm is chosen based on whether the gas turbine combustors are in an ignition phase or a monitoring phase.

20160109304, Apr 21, 2016

May 29, 2014

14/894010

- Orlando FL, US
Heiko Claussen - North Brunswick NJ, US
Upul P. DeSilva - Oviedo FL, US
Justinian Rosca - West Windsor NJ, US
Tong Fang - Morganville NJ, US
Nancy Ulerich - Longwood FL, US

G01K 15/00
G01K 13/02
G01K 11/24

A method of calibrating transceiver positions inside an acoustic pyrometry measuring vessel that contains a plurality of transceivers, includes determining () a speed of sound in the acoustic pyrometry measuring vessel from a temperature and gas composition of a gas inside the acoustic pyrometry measuring vessel, acquiring () time-of-flight (TOFs) Δtimeasurements from a plurality of pairs i,j of transceivers inside the acoustic pyrometry measuring vessel, estimating () a radius of the acoustic pyrometry measuring vessel from an average of the acquired TOF measurements, and using () an estimated radius of the acoustic pyrometry measuring vessel to estimate errors Δθj of displacement angles of the transceivers.