Patents by Inventor Brian Wirth
Brian Wirth 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).
-
Patent number: 11977027Abstract: A method and device for determining the depth and fluorophore concentration of a fluorophore concentration below the surface of an optically absorbing and scattering medium suitable for use in fluorescence-based surgical guidance such as in tumor resection is described. Long-wavelength stimulus light us used to obtain deep tissue penetration. Recovery of depth is performed by fitting measured modulation amplitudes for each spatial frequency to precomputed modulation amplitudes in a table of modulation amplitudes indexed by optical parameters and depth.Type: GrantFiled: May 26, 2023Date of Patent: May 7, 2024Assignees: UNIVERSITY HEALTH NETWORKInventors: Keith D. Paulsen, David W. Roberts, Dennis Wirth, Brian C. Wilson, Mira Sibai
-
Patent number: 11971337Abstract: Disclosed are compositions and methods for inactivating one or more enzymes in a biological sample.Type: GrantFiled: October 4, 2021Date of Patent: April 30, 2024Assignee: VENTANA MEDICAL SYSTEMS, INC.Inventors: James Grille, Brian D. Kelly, Jerome Kosmeder, II, Eric May, Noemi Sebastiao, Pamela Wirth
-
Patent number: 10981675Abstract: The present disclosure provides methods and systems for propeller balancing of an aircraft comprising a propeller. Acceleration data is obtained from an acceleration sensor coupled to the aircraft. The acceleration data is filtered using a filter to obtain propeller-specific vibration data, the filter defining a range of acceptable frequencies associated with a frequency of rotation of the propeller. The propeller-specific vibration data is compared to trend data associated with the propeller. When the propeller-specific vibration data differs from the trend data beyond a predetermined threshold, an alert indicative of a balancing need for the propeller is issued.Type: GrantFiled: February 28, 2020Date of Patent: April 20, 2021Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Richard Brian Wirth, Robert Winchcomb, Bruce Calvert, Robert Wigny
-
Publication number: 20200198806Abstract: The present disclosure provides methods and systems for propeller balancing of an aircraft comprising a propeller. Acceleration data is obtained from an acceleration sensor coupled to the aircraft. The acceleration data is filtered using a filter to obtain propeller-specific vibration data, the filter defining a range of acceptable frequencies associated with a frequency of rotation of the propeller. The propeller-specific vibration data is compared to trend data associated with the propeller. When the propeller-specific vibration data differs from the trend data beyond a predetermined threshold, an alert indicative of a balancing need for the propeller is issued.Type: ApplicationFiled: February 28, 2020Publication date: June 25, 2020Inventors: Richard Brian WIRTH, Robert Winchcomb, Bruce Calvert, Robert Wigny
-
Patent number: 10611501Abstract: There is described herein a propeller balancing system and method that selects at least a portion of received propeller vibration data by comparing received aircraft data collected concurrently with the propeller vibration data with at least one customizable flight criterion, and identifying the portion of the vibration data acquired at a time when the aircraft data meets the at least one customizable flight criterion. The selected portion of the propeller vibration data is analyzed to assess a vibration level of the propeller and a balancing need is signaled when the vibration level reaches a threshold.Type: GrantFiled: June 1, 2017Date of Patent: April 7, 2020Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Richard Brian Wirth, Robert Winchcomb, Bruce Calvert, Robert Wigny
-
Publication number: 20180371915Abstract: Devices and methods useful for balancing high-pressure spools of gas turbine engines are disclosed. An exemplary device may comprise: an input shaft configured to be coupled to an output of an accessory gear box driven by a high-pressure spool of a gas turbine engine; a first trigger rotatably coupled to the input shaft at a first speed ratio; and a sensor configured to detect the trigger at each revolution of the trigger. The first speed ratio may permit a rotational speed of the first trigger to be substantially the same as a rotational speed of the high-pressure spool. Upon detection of the trigger, the sensor may generate one or more signals representative of each associated revolution of the high-pressure spool of the gas turbine engine.Type: ApplicationFiled: August 30, 2018Publication date: December 27, 2018Inventors: Bruce CALVERT, Richard Brian WIRTH, Danny KRAUSE
-
Patent number: 10087761Abstract: Devices and methods useful for balancing high-pressure spools of gas turbine engines are disclosed. An exemplary device may comprise: an input shaft configured to be coupled to an output of an accessory gear box driven by a high-pressure spool of a gas turbine engine; a first trigger rotatably coupled to the input shaft at a first speed ratio; and a sensor configured to detect the trigger at each revolution of the trigger. The first speed ratio may permit a rotational speed of the first trigger to be substantially the same as a rotational speed of the high-pressure spool. Upon detection of the trigger, the sensor may generate one or more signals representative of each associated revolution of the high-pressure spool of the gas turbine engine.Type: GrantFiled: December 20, 2013Date of Patent: October 2, 2018Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Bruce Alan Calvert, Richard Brian Wirth, Danny Krause
-
Publication number: 20170275027Abstract: There is described herein a propeller balancing system and method that selects at least a portion of received propeller vibration data by comparing received aircraft data collected concurrently with the propeller vibration data with at least one customizable flight criterion, and identifying the portion of the vibration data acquired at a time when the aircraft data meets the at least one customizable flight criterion. The selected portion of the propeller vibration data is analyzed to assess a vibration level of the propeller and a balancing need is signaled when the vibration level reaches a threshold.Type: ApplicationFiled: June 1, 2017Publication date: September 28, 2017Inventors: Richard Brian WIRTH, Robert WINCHCOMB, Bruce CALVERT, Robert WIGNY
-
Patent number: 9694915Abstract: There is described herein a propeller balancing system and method that determines a stable cruise condition of an aircraft during flight, and considers vibration data for propeller balancing collected while the aircraft is in the stable cruise condition. Parameters used to determine stable cruise condition may be unique for each flight and/or aircraft, and balancing solutions may be determined based on these unique parameters.Type: GrantFiled: March 23, 2016Date of Patent: July 4, 2017Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Richard Brian Wirth, Robert Winchcomb, Bruce Calvert, Robert Wigny
-
Publication number: 20150177091Abstract: Devices and methods useful for balancing high-pressure spools of gas turbine engines are disclosed. An exemplary device may comprise: an input shaft configured to be coupled to an output of an accessory gear box driven by a high-pressure spool of a gas turbine engine; a first trigger rotatably coupled to the input shaft at a first speed ratio; and a sensor configured to detect the trigger at each revolution of the trigger. The first speed ratio may permit a rotational speed of the first trigger to be substantially the same as a rotational speed of the high-pressure spool. Upon detection of the trigger, the sensor may generate one or more signals representative of each associated revolution of the high-pressure spool of the gas turbine engine.Type: ApplicationFiled: December 20, 2013Publication date: June 25, 2015Applicant: Pratt & Whitney Canada Corp.Inventors: Bruce Alan CALVERT, Richard Brian WIRTH, Danny KRAUSE
-
Publication number: 20140257597Abstract: An interface system for a plurality of different protocols. The system includes a single receiver, a processor and a single transmitter. The receiver may convert an input signal to a 1/0 signal according to a determined one of the plurality of different protocols. The processor may receive the converted logic level signal and parse the converted logic level signal into data according to the determined one protocol. The transmitter may receive the translated signal and convert the translated signal to an output signal having a format readable by an external device.Type: ApplicationFiled: March 11, 2013Publication date: September 11, 2014Applicant: PRATT & WHITNEY CANADA CORP.Inventors: Jonathan MILLER, Richard Brian WIRTH
-
Patent number: 6765917Abstract: A system and method for the transmission of synchronization information from a wireless asynchronous transfer mode (ATM) base station across a point to point or point to multipoint wireless link, to one or more network interface units (NIUs). Each of the NIUs is capable of supporting a combination of structured or unstructured T1 and/or E1 circuit emulation services. The technique involves locking the wireless modem downstream symbol clock to an externally provided frequency reference from the base station. The reference is an N integer multiple of 8 kHz which is the lowest common denominator for both the T1 and E1 clocking rates.Type: GrantFiled: June 3, 1999Date of Patent: July 20, 2004Assignee: Alcatel Canada Inc.Inventors: Alan W. Jaakkola, Donna Godin, Brian Wirth
-
Patent number: 5982745Abstract: In a method implementing redundancy in LAN/WAN bridging/switching elements, LAN/WAN traffic is sent to active and inactive elements using multicast techniques. The active element bridges the data traffic and the inactive drops it.Type: GrantFiled: November 17, 1997Date of Patent: November 9, 1999Assignee: Newbridge Networks CorporationInventors: Mark Wolff, Phil Worthington, Merrill Arcand, Brian Wirth, Alain Brazeau
-
Patent number: 5563876Abstract: The invention provides a very fast distributed frame relay switch. Each switching element is tied to each other switching element using LAN like FDDI technology. Frame relay packets arrive into the switch via lower speed TDM based trunks and can either be switched locally within the same switching element or can be switched to a remote switching element via the FDDI bus. The switching elements themselves reside in a TDM based multiplexer, thus can utilize existing TDM interfaces.Type: GrantFiled: July 21, 1994Date of Patent: October 8, 1996Assignee: Newbridge Networks CorporationInventors: Tom Duxbury, Brian Wirth, Wayne Burwell, Paul Crozier
-
Patent number: 5546378Abstract: A wiring hub for interconnecting a plurality of switching units, includes a plurality of interface modules for connection to respective external switching units in a dual-attached connection, and a dual FDDI ring interconnecting the interface modules. The interface modules include a switching element operable to bypass each switching unit or insert it on the ring in a dual-attached connection. The switching element automatically switches the interface module to its bypass state when a switching unit is disconnected from the wiring hub.Type: GrantFiled: July 21, 1994Date of Patent: August 13, 1996Assignee: Newbridge Networks CorporationInventors: Brian Wirth, Tom Duxbury