Patents by Inventor Paul Chisholm
Paul Chisholm 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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Publication number: 20250123157Abstract: A temperature sensor has a heat-sensitive element contained within a chamber, the heat-sensitive element changing from a first configuration to a second configuration at a predetermined temperature, and a biased member biased towards the chamber. The biased member initially is prevented from entering the chamber when the heat-sensitive element is in the first configuration and enters the chamber when the heat-sensitive element is in the second configuration. In some aspects, the first configuration is solid and the second configuration is liquid and a selectively permeable element is provided to allow the heat-sensitive element to exit the chamber in the liquid configuration. An indicator can be provided that has a plurality of feet initially held in a retained configuration by the biased member until the biased member enters the chamber to release the feet for sliding motion of the indicator.Type: ApplicationFiled: December 23, 2024Publication date: April 17, 2025Inventors: Thomas Jacob Zuiderveen, Jeremy Michael Van Horn, Justin George Pezzin, Yen-You Lin, Audrey Joy Corrine Siebert-Timmer, Elizabeth Sarah Smith Price, John Paul Chisholm
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Patent number: 12209915Abstract: A temperature sensor has a heat-sensitive element contained within a chamber, the heat-sensitive element changing from a first configuration to a second configuration at a predetermined temperature, and a biased member biased towards the chamber. The biased member initially is prevented from entering the chamber when the heat-sensitive element is in the first configuration and enters the chamber when the heat-sensitive element is in the second configuration. In some aspects, the first configuration is solid and the second configuration is liquid and a selectively permeable element is provided to allow the heat-sensitive element to exit the chamber in the liquid configuration. An indicator can be provided that has a plurality of feet initially held in a retained configuration by the biased member until the biased member enters the chamber to release the feet for sliding motion of the indicator.Type: GrantFiled: July 22, 2019Date of Patent: January 28, 2025Assignee: IFD Technologies Inc.Inventors: Thomas Jacob Zuiderveen, Jeremy Michael Van Horn, Justin George Pezzin, Yen-You Lin, Audrey Joy Corrine Siebert-Timmer, Elizabeth Sarah Smith Price, John Paul Chisholm
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Publication number: 20240288316Abstract: Apparatus and methods for non-invasively determining a temperature of a fluid inside a housing are provided. First and second temperature sensors are positioned so that there is a temperature differential between the first and second temperature sensors. A difference between the temperature of the first and second temperature sensors can be used to estimate the temperature of the fluid inside the housing and/or a zero heat flow methodology can be used to determine the temperature of the fluid inside the housing.Type: ApplicationFiled: June 17, 2022Publication date: August 29, 2024Inventors: Mathieu Garret SCHNEIDER, Benjamin Donald Cormac TULINE, James Thomas Isaac LANDECKER, Adrian Bernard SILGARDO, John Paul CHISHOLM, Yen-You LIN, Amanda Mahn Hah TUEY, Jeremy Michael VAN HORN, Audrey Joy Corrine SIEBERT-TIMMER, Thomas Jacob ZUIDERVEEN, Michael Stephen PAULGAARD
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Publication number: 20240053215Abstract: A fault detector for detecting the occurrence of a rapid pressure rise within electrical equipment. The fault detector has a chamber having an interior, a diaphragm in sealing engagement with the chamber and an aperture providing fluid communication between the interior of the chamber and the external environment of the chamber.Type: ApplicationFiled: February 23, 2022Publication date: February 15, 2024Inventors: Thomas Jacob ZUIDERVEEN, Yen-You LIN, Audrey Joy Corrine SIEBERT-TIMMER, John Paul CHISHOLM, Jeremy Michael VAN HORN, Elizabeth Sarah Smith PRICE, Allison GIANNAROS, Amanda Mahn Hah TUEY, Adrian Bernard SILGARDO, Justin George PEZZIN, Richard Luke GRANDBOIS, Braden David Seung-Jin SCOTT
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Patent number: 11137312Abstract: An integrated fault monitoring apparatus for electrical devices has an internal fault detector for detecting transient pressure surges within the electrical device, a pressure relief valve for allowing release of pressure during normal operating conditions of the electrical device, a temperature indicator for indicating that an operating temperature of the electrical device has gone above a predetermined threshold, and/or a sudden pressure relief device for allowing air to escape from the electrical device in the event of a sudden and significant increase in pressure within the electrical device. Methods of using the apparatus are provided.Type: GrantFiled: February 19, 2020Date of Patent: October 5, 2021Assignee: IFD INTERNAL FAULT DETECTOR CORP.Inventors: Justin George Pezzin, Jeremy Michael Van Horn, Yen-You Lin, John Paul Chisholm, Sophie Anne Ramsden
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Publication number: 20210164849Abstract: A temperature sensor has a heat-sensitive element contained within a chamber, the heat-sensitive element changing from a first configuration to a second configuration at a predetermined temperature, and a biased member biased towards the chamber. The biased member initially is prevented from entering the chamber when the heat-sensitive element is in the first configuration and enters the chamber when the heat-sensitive element is in the second configuration. In some aspects, the first configuration is solid and the second configuration is liquid and a selectively permeable element is provided to allow the heat-sensitive element to exit the chamber in the liquid configuration. An indicator can be provided that has a plurality of feet initially held in a retained configuration by the biased member until the biased member enters the chamber to release the feet for sliding motion of the indicator.Type: ApplicationFiled: July 22, 2019Publication date: June 3, 2021Inventors: Thomas Jacob Zuiderveen, Jeremy Michael Van Horn, Justin George Pezzin, Yen-You Lin, Audrey Joy Corrine Siebert-Timmer, Elizabeth Sarah Smith Price, John Paul Chisholm
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Publication number: 20200191880Abstract: An integrated fault monitoring apparatus for electrical devices has an internal fault detector for detecting transient pressure surges within the electrical device, a pressure relief valve for allowing release of pressure during normal operating conditions of the electrical device, a temperature indicator for indicating that an operating temperature of the electrical device has gone above a predetermined threshold, and/or a sudden pressure relief device for allowing air to escape from the electrical device in the event of a sudden and significant increase in pressure within the electrical device. Methods of using the apparatus are provided.Type: ApplicationFiled: February 19, 2020Publication date: June 18, 2020Inventors: Justin George PEZZIN, Jeremy Michael VAN HORN, Yen-You LIN, John Paul CHISHOLM, Sophie Anne RAMSDEN
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Patent number: 10605849Abstract: An integrated fault monitoring apparatus for electrical devices has an internal fault detector for detecting transient pressure surges within the electrical device, a pressure relief valve for allowing release of pressure during normal operating conditions of the electrical device, a temperature indicator for indicating that an operating temperature of the electrical device has gone above a predetermined threshold, and/or a sudden pressure relief device for allowing air to escape from the electrical device in the event of a sudden and significant increase in pressure within the electrical device. Methods of using the apparatus are provided.Type: GrantFiled: February 19, 2016Date of Patent: March 31, 2020Assignee: IFD Internal Fault Detector Corp.Inventors: Justin George Pezzin, Jeremy Michael Van Horn, Yen-You Lin, John Paul Chisholm, Sophie Anne Ramsden
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Publication number: 20180031625Abstract: An integrated fault monitoring apparatus for electrical devices has an internal fault detector for detecting transient pressure surges within the electrical device, a pressure relief valve for allowing release of pressure during normal operating conditions of the electrical device, a temperature indicator for indicating that an operating temperature of the electrical device has gone above a predetermined threshold, and/or a sudden pressure relief device for allowing air to escape from the electrical device in the event of a sudden and significant increase in pressure within the electrical device. Methods of using the apparatus are provided.Type: ApplicationFiled: February 19, 2016Publication date: February 1, 2018Inventors: Justin George PEZZIN, Jeremy Michael VAN HORN, Yen-You LIN, John Paul CHISHOLM, Sophie Anne RAMSDEN
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Patent number: 9188500Abstract: A fault indicator for indicating the occurrence of a rapid pressure surge within a housing of an electrical device has: a barrel capable of being mounted in an aperture of the housing; an actuating mechanism having a chamber with at least one orifice communicating between interior and exterior surfaces of the chamber within the housing and an actuating member movable in response to a pressure differential between the interior and exterior surfaces of the chamber; a plunger within the bore of the barrel biased outwardly in the barrel and normally retained in an armed position by the actuating member; and a radial seal disposed between the plunger and the barrel. When the pressure differential exceeds a positive threshold value, the actuating member is moved and thereby permits the plunger to move outwardly into a triggered position. The radial seal may be a dual-lip seal.Type: GrantFiled: June 7, 2010Date of Patent: November 17, 2015Assignee: IFD INTERNAL FAULT DETECTOR CORP.Inventors: Justin George Pezzin, Adam John Hunsberger, John Paul Chisholm, Hyuk Jae Lee
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Patent number: 8471558Abstract: The present application discloses systems and methods for analyzing a chemical substance containing quadrupolar nuclei to determine a measurable characteristic of the substance. The systems and methods include irradiating the substance with RF energy to stimulate NQR of certain quadrupolar nuclei within the substance, receiving and processing a signal emitted from the substance to isolate an NQR signal therefrom, analyzing the NQR signal to obtain a measure of the characteristic of the substance, and providing an output indicative of the measure for analytical purposes.Type: GrantFiled: July 1, 2011Date of Patent: June 25, 2013Assignee: Rapiscan Systems, Inc.Inventors: Warrick Paul Chisholm, Laurence Drew Mann, Timothy Rayner, John Alec Sidney Smith
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Publication number: 20130074603Abstract: A fault indicator for indicating the occurrence of a rapid pressure surge within a housing of an electrical device has: a barrel capable of being mounted in an aperture of the housing; an actuating mechanism having a chamber with at least one orifice communicating between interior and exterior surfaces of the chamber within the housing and an actuating member movable in response to a pressure differential between the interior and exterior surfaces of the chamber; a plunger within the bore of the barrel biased outwardly in the barrel and normally retained in an armed position by the actuating member; and a radial seal disposed between the plunger and the barrel. When the pressure differential exceeds a positive threshold value, the actuating member is moved and thereby permits the plunger to move outwardly into a triggered position. The radial seal may be a dual-lip seal.Type: ApplicationFiled: June 7, 2010Publication date: March 28, 2013Applicant: IFD INTERNAL FAULT DETECTOR CORPInventors: Justin George Pezzin, Adam John Hunsberger, John Paul Chisholm, Hyuk Jae Lee
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Publication number: 20120068701Abstract: The present application discloses systems and methods for analyzing a chemical substance containing quadrupolar nuclei to determine a measurable characteristic of the substance. The systems and methods include irradiating the substance with RF energy to stimulate NQR of certain quadrupolar nuclei within the substance, receiving and processing a signal emitted from the substance to isolate an NQR signal therefrom, analyzing the NQR signal to obtain a measure of the characteristic of the substance, and providing an output indicative of the measure for analytical purposes.Type: ApplicationFiled: July 1, 2011Publication date: March 22, 2012Inventors: Warrick Paul Chisholm, Laurence Drew Mann, Timothy Rayner, John Alec Sidney Smith
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Patent number: 7999541Abstract: A method for analysing a chemical substance containing quadrupolar nuclei to determine a measurable characteristic of the substance. The method includes irradiating the substance with RF energy in a prescribed manner to stimulate NQR of certain quadrupolar nuclei within the substance. Then receiving and processing a signal emitted from the substance to isolate an NQR signal therefrom. Thereafter analysing the NQR signal to obtain a measure of the characteristic of the substance; and providing an output indicative of the measure for analytical purposes. Specific methods for analysing a chemical substance during production thereof to determine a characteristic of the substance indicative of the quality thereof, and for searching for chemicals together with specific systems are also described.Type: GrantFiled: May 16, 2006Date of Patent: August 16, 2011Assignee: Rapiscan Security Products, Inc.Inventors: Warrick Paul Chisholm, Laurence Drew Mann, Timothy Rayner, John Alec Sidney Smith
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Publication number: 20080309339Abstract: A method for analysing a chemical substance containing quadrupolar nuclei to determine a measurable characteristic of the substance. The method includes irradiating the substance with RF energy in a prescribed manner to stimulate NQR of certain quadrupolar nuclei within the substance. Then receiving and processing a signal emitted from the substance to isolate an NQR signal therefrom. Thereafter analysing the NQR signal to obtain a measure of the characteristic of the substance; and providing an output indicative of the measure for analytical purposes. Specific methods for analysing a chemical substance during production thereof to determine a characteristic of the substance indicative of the quality thereof, and for searching for chemicals together with specific systems are also described.Type: ApplicationFiled: May 16, 2006Publication date: December 18, 2008Applicant: QRSCIENCES PTY. LTD.Inventors: Warrick Paul Chisholm, Laurence Drew Mann, Timothy Rayner, John Alec Sidney Smith
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Patent number: 7355400Abstract: An apparatus and a method for producing a multi-pulse sequence for irradiating a substance provided with quadrupole nuclei with either integer or half-integer spins to detect an NQR signal emitted therefrom. The apparatus has pulse sequence generating means adapted to produce a combination of two or more pulse sequences, arranged so that a definite regularity of the phase alteration of pulses in each of the pulse sequences occurs that is equivalent to a shift of spectral components of the pulse sequences in relation to each other. Furthermore, in at least one of the pulse sequences, there are not less than two phases alternating. A preparatory pulse may be included in one of the pulse sequences to reduce the effect of temperature, increase the intensity of the NQR signal and simultaneously eliminate intensity anomalies. Alternatively, the combination of pulse sequences may be different from a combination of PAPS and NPAPS, and none of the pulse sequences contain a preparatory pulse.Type: GrantFiled: June 20, 2003Date of Patent: April 8, 2008Assignee: QRSciences Pty. Ltd.Inventors: Vassili Timofeevitch Mikhaltsevitch, Taras Nikolaevitch Rudakov, John Harold Flexman, Peter Alaric Hayes, Warrick Paul Chisholm
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Patent number: 7282913Abstract: An apparatus and method for producing a multi-pulse sequence for irradiating a substance provided with quadrupole nuclei with either integer or half-integer spins to detect an NQR signal emitted therefrom. The apparatus has pulse sequence generating means adapted to produce multi-pulse sequences with pulse intervals exceeding T2* and containing a preparatory pulse or group of pulses for creating echo signals between the pulses. The pulse sequence is organised so that the resulting signal contains a prevailing echo component produced by the preparatory pulse or group of pulses.Type: GrantFiled: December 21, 2004Date of Patent: October 16, 2007Assignee: Qrsciences Pty. Ltd.Inventors: Vassili Timofeevitch Mikhaltsevitch, Taras Nikolaevitch Rudakov, John Harold Flexman, Peter Alaric Hayes, Warrick Paul Chisholm
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Patent number: 7250763Abstract: A coil assembly (11) comprising two coil sections (13a and 13b). Each of the sections (13) consists of a combinat of a spiral coil (15) having a variable coil pitch arranged in a saddle shape configuration. The saddle shape has a central port (17) and a pair of outer coextending portions (19). The coil sections (13) are located opposite each other with the central p(17) of the respective sections disposed in parallel spaced apart relationship and the corresponding coextending portions (19) of respective sections disposed in coplanar alignment with each other so that the sections combine to circumscribe a scanned volume within which the target substance is to be disposed.Type: GrantFiled: November 6, 2003Date of Patent: July 31, 2007Assignee: QRSciences Pty. Ltd.Inventors: Vassili Timofeevitch Mikhaltsevitch, Taras Nikolaevitch Rudakov, Warrick Paul Chisholm, John Harold Flexman, Peter Alaric Hayes
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Patent number: 7218105Abstract: An apparatus for exciting and detecting NQR in a substance containing quadrupole nuclei responsive to the NQR phenomenon. The apparatus includes a coil 15 for irradiating an item that may contain a substance with RF waves to excite NQR in quadrupole nuclei within the substance and for receiving an NQR signal emitted in response thereto. A transmitter unit 10 is provided for producing and transmitting an RF pulse to the probe to create said RF waves. A receiver unit 11 is provided to receive and treat a received signal from said probe for subsequent processing and detection of a said NQR signal therein. A sensing means is included in the apparatus for sensing an extraneous parameter that may influence the detection of the NQR signal from the item to be scanned.Type: GrantFiled: June 24, 2003Date of Patent: May 15, 2007Assignee: QRSciences Pty. Ltd.Inventors: Warrick Paul Chisholm, Peter Alaric Hayes, John Harold Flexman, Vassili Timofeevitch Mikhaltsevitch, Taras Nikolaevitch Rudakov
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Patent number: 7109714Abstract: A probe (80) for irradiating a sample with RF energy during transmitting periods and detecting an NQR or NMR signal from a substance contained within the sample during receiving periods. The probe (80) comprises a variable impedance unit (20) for changing the Q-factor of the probe and a probe coil. The probe (80) is responsive to powerful RF pulses applied thereto to excite an RF magnetic field in the probe coil during the transmitting periods. The variable impedance unit (20) is controllable to provide a Q-factor for the probe (80) at: (i) an optimal level during a prescribed transmitting period of an RF pulse for irradiating the sample with said RF energy; (ii) a minimal level during a prescribed recovery period immediately following said transmitting period to rapidly dampen transient signals from the probe; and (iii) a maximal level during a prescribed receiving period for detecting an NQR or NMR signal from the target substance if present, immediately following the recovery period.Type: GrantFiled: May 5, 2004Date of Patent: September 19, 2006Assignee: Qrsciences Pty. Ltd.Inventors: Taras Nikolaevitch Rudakov, Vassili Timofeevitch Mikhaltsevitch, Warrick Paul Chisholm, John Harold Flexman, Peter Alaric Hayes