Patents by Inventor Lawrence P. Roberts
Lawrence P. Roberts 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: 11860060Abstract: A method of repairing an integrally bladed rotor (IBR) may comprise: performing a vibratory analysis of a rotor module including a first inspected IBR with a potential repair shape for the IBR; determining an undesirable vibratory characteristic of a second inspected IBR in the rotor module; iterating the potential repair shape for the first IBR to eliminate the undesirable vibratory characteristic of the second inspected IBR; and repairing the first IBR with a selected repair shape based on determining the potential repair shape eliminates the undesirable vibratory characteristic.Type: GrantFiled: April 26, 2022Date of Patent: January 2, 2024Assignee: RTX CorporationInventors: William D. Owen, Ron I. Prihar, Lawrence P. Roberts, Ming-Ta Yang
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Publication number: 20230314280Abstract: A method of repairing an integrally bladed rotor (IBR) may comprise: performing a vibratory analysis of a rotor module including a first inspected IBR with a potential repair shape for the IBR; determining an undesirable vibratory characteristic of a second inspected IBR in the rotor module; iterating the potential repair shape for the first IBR to eliminate the undesirable vibratory characteristic of the second inspected IBR; and repairing the first IBR with a selected repair shape based on determining the potential repair shape eliminates the undesirable vibratory characteristic.Type: ApplicationFiled: April 26, 2022Publication date: October 5, 2023Applicant: RAYTHEON TECHNOLOGIES CORPORATIONInventors: WILLIAM D. OWEN, RON I. PRIHAR, LAWRENCE P. ROBERTS, MING-TA YANG
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Publication number: 20230315951Abstract: A method can comprise: generating, via a processor, a digital representation of a portion of a repaired bladed rotor, the digital representation based on a geometrical dimensions determined from an inspection of an inspected bladed rotor and a repair blend profile for a defect of the inspected bladed rotor; performing, via the processor, a structural simulation on a structural model, the structural model based on the digital representation of the repaired bladed rotor; performing, via the processor, an aerodynamic simulation on an aerodynamic model, the aerodynamic model based on the digital representation of the repaired bladed rotor; and determining, via the processor, whether results from the structural simulation and the aerodynamic simulation meet an experience based criteria for the repaired bladed rotor.Type: ApplicationFiled: July 11, 2022Publication date: October 5, 2023Applicant: RAYTHEON TECHNOLOGIES CORPORATIONInventors: LAWRENCE P. ROBERTS, ROSS A. VANDENBOSCH, UYEN PHAN
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Publication number: 20230315938Abstract: A method is providing comprising receiving, via a processor, a digital representation of a potentially repaired blade from an inspection system, the digital representation including a repair blend profile, the digital representation based on an inspected blade of an inspected bladed rotor; generating, via the processor, an airfoil definition file corresponding to the digital representation, inputting, via the processor, the airfoil definition file into an aerodynamic simulator, receiving, via the processor, simulation results from the aerodynamic simulator of the potentially repaired blade; analyzing, via the processor, an overall engine impact of the potentially repaired blade based on the simulation results, inputting, via the processor, a plurality of simulation results into an aerodynamic effect translator, and receiving, via the processor, a translated impact for local effect of a repaired bladed rotor with the potentially repaired blade.Type: ApplicationFiled: October 11, 2022Publication date: October 5, 2023Applicant: Raytheon Technologies CorporationInventors: Anil Prasad, Becky E. Rose, Lawrence P. Roberts, Uyen Phan
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Publication number: 20230311252Abstract: A method of determining a repair method for a defect in a bladed rotor can comprise comparing the defect in a three-dimensional model of an inspected integrally bladed rotor (IBR) to a plurality of known defects from a repair database; determining the defect is matching a known defect in the plurality of known defects in the repair database; and generating a repair process associated with the known defect in response to determining the defect is matching the known defect. A method can also comprise determining a potential repair process; performing a structural simulation of a finite element model for the inspected IBR with the potential repair; performing an aerodynamic simulation of an aerodynamic model for the inspected IBR with the potential repair; and generating the potential repair process for the defect in response to determining the inspected IBR with the potential repair meets structural and the aerodynamic criteria.Type: ApplicationFiled: April 26, 2022Publication date: October 5, 2023Applicant: RAYTHEON TECHNOLOGIES CORPORATIONInventors: NIGEL DAVID SAWYERS-ABBOTT, RON I. PRIHAR, GARRETT KERNOZICKY, ZHONG OUYANG, LAWRENCE P. ROBERTS, ADAM F. KNAPP
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Publication number: 20230315948Abstract: An article of manufacture may include a tangible, non-transitory computer-readable storage medium having instructions stored thereon that, in response to execution by a processor, cause the processor to perform operations comprising: receiving, via the processor, one of a point cloud and a three-dimensional model for an inspected integrally bladed rotor (IBR) and a defect including a defect shape, a defect size, and a defect location; generating, via the processor, a first finite element model and a second finite element model based on the point cloud or the three-dimensional model, the first finite element model and the second finite element model; performing, via the processor, a structural analysis simulation with the first finite element model; performing, via the processor an aerodynamic analysis simulation with the second finite element model; iterating, via the processor, a repaired defect shape based on simulation data from the aerodynamic analysis simulation and the structural analysis simulation; anType: ApplicationFiled: April 26, 2022Publication date: October 5, 2023Applicant: RAYTHEON TECHNOLOGIES CORPORATIONInventors: LAWRENCE P. ROBERTS, ADAM F. KNAPP, WILLIAM D. OWEN, ROSS A. VANDENBOSCH
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Publication number: 20230313685Abstract: A method can comprise: determining, via a processor, whether serviceable limits are met for an inspected bladed rotor; generating, via the processor, a three-dimensional model including a repair blend profile for a defect in response to determining the inspected bladed rotor does not meet the serviceable limits; performing, via the processor, a first set of simulations on the three-dimensional model; determining, via the processor, whether a first set of results of the first set of simulations meet an experience based criteria; performing, via the processor, a second set of simulations on the three-dimensional model in response to a first result in the first set of results not meeting a first objective parameter in the experience based criteria; and determining, via the processor, whether a second set of results and the first set of results meet a deterministic criteria.Type: ApplicationFiled: February 27, 2023Publication date: October 5, 2023Applicant: RAYTHEON TECHNOLOGIES CORPORATIONInventors: LAWRENCE P. ROBERTS, ROSS A. VANDENBOSCH, UYEN PHAN, RON I. PRIHAR, GARRETT KERNOZICKY
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Publication number: 20230305156Abstract: An inspection system for a bladed rotor is disclosed herein. In various embodiments, the inspection system comprises: a support structure; a first scanner moveably coupled to the support structure; a second scanner moveably coupled to the support structure; a motor operably coupled to a shaft, the shaft rotatably coupled to the support structure, the shaft configured to be coupled to the bladed rotor; and a controller in electronic communication with the first scanner, the second scanner, and the motor, the controller configured to: command the first scanner to scan the bladed rotor; command the second scanner to scan the bladed rotor; and generate a point cloud for the bladed rotor based on scanning data received from the first scanner and the second scanner.Type: ApplicationFiled: March 23, 2022Publication date: September 28, 2023Applicant: RAYTHEON TECHNOLOGIES CORPORATIONInventors: TRACY A. PROPHETER-HINCKLEY, DEREK J. MICHAELS, LAWRENCE P. ROBERTS
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Publication number: 20230304476Abstract: An article of manufacture may include a tangible, non-transitory computer-readable storage medium having instructions stored thereon that, in response to execution by a processor, cause the processor to perform operations comprising: commanding, via the processor, a first scan of a bladed rotor; generating, via the processor, a three-dimensional model based on a first set of data received from the first scan; comparing, via the processor, the three-dimensional model to an acceptable three-dimensional model of the bladed rotor; determining, via the processor, areas of interest based on the comparison; commanding, via the processor, a second scan of the areas of interest of the bladed rotor; and generating a final three-dimensional model based on the first scan and the second scan.Type: ApplicationFiled: March 23, 2022Publication date: September 28, 2023Applicant: RAYTHEON TECHNOLOGIES CORPORATIONInventors: TRACY A. PROPHETER-HINCKLEY, DEREK J. MICHAELS, LAWRENCE P. ROBERTS, RON I. PRIHAR
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Patent number: 10253693Abstract: A single, unitary thermal management system (TMS) manifold for a gas turbine engine is provided which comprises one or more interfaces for mounting various thermal management system components directly to the TMS manifold. The TMS manifold also defines fluid passages for transferring fuel, engine lubricant or generator oil from one component to another component. Packing numerous fuel system and lubricating system components within the TMS manifold reduces cost and weight and simplifies maintenance.Type: GrantFiled: May 23, 2014Date of Patent: April 9, 2019Assignee: UNITED TECHNOLOGIES CORPORATIONInventor: Lawrence P. Roberts
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Publication number: 20160222885Abstract: A single, unitary thermal management system (TMS) manifold for a gas turbine engine is provided which comprises one or more interfaces for mounting various thermal management system components directly to the TMS manifold. The TMS manifold also defines fluid passages for transferring fuel, engine lubricant or generator oil from one component to another component. Packing numerous fuel system and lubricating system components within the TMS manifold reduces cost and weight and simplifies maintenance.Type: ApplicationFiled: May 23, 2014Publication date: August 4, 2016Inventor: Lawrence P. ROBERTS
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Patent number: 7806410Abstract: A stationary labyrinth seal system includes a seal housing having an annular cavity, a plurality of damping devices, and a retaining ring. The damping devices are positioned within the annular cavity and are maintained within the annular cavity by the retaining ring.Type: GrantFiled: February 20, 2007Date of Patent: October 5, 2010Assignee: United Technologies CorporationInventors: Yehia M. El-Aini, William S. Mitchell, Lawrence P. Roberts, Stuart K. Montgomery, Gary A. Davis
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Publication number: 20080197575Abstract: A stationary labyrinth seal system includes a seal housing having an annular cavity, a plurality of damping devices, and a retaining ring. The damping devices are positioned within the annular cavity and are maintained within the annular cavity by the retaining ring.Type: ApplicationFiled: February 20, 2007Publication date: August 21, 2008Applicant: United Technologies CorporationInventors: Yehia M. El-Aini, William S. Mitchell, Lawrence P. Roberts, Stuart K. Montgomery, Gary A. Davis