Patents by Inventor Matthew Todd Griffin
Matthew Todd Griffin 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: 9337006Abstract: An inlet apparatus is disclosed. The apparatus may include a first conduit for sampling, and a second and third conduit for directing flow throughout the inlet apparatus. Flow may be induced in two opposite directions through the second conduit, which affect the flow of gas through the first conduit for sampling. The various conduits of the apparatus may be connected to a device for inducing flow in different directions. The duration of the flow in a particular direction affects the amount of sample gas that enters a detection device.Type: GrantFiled: February 12, 2014Date of Patent: May 10, 2016Assignee: Chemring Detection Systems, Inc.Inventors: Eric Charles Wallis, Paul J. Rauch, Matthew Todd Griffin, John Michael Alfred Petinarides
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Patent number: 8991269Abstract: An inlet apparatus is disclosed. The apparatus may include a first conduit for sampling, and a second and third conduit for directing flow throughout the inlet apparatus. Flow may be induced in two opposite directions through the second conduit, which affect the flow of gas through the first conduit for sampling. The various conduits of the apparatus may be connected to a device for inducing flow in different directions. The duration of the flow in a particular direction affects the amount of sample gas that enters a detection device.Type: GrantFiled: February 12, 2014Date of Patent: March 31, 2015Assignee: Chemring Detection Systems, Inc.Inventors: Eric Charles Wallis, Paul J. Rauch, Matthew Todd Griffin, John Michael Alfred Petinarides
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Publication number: 20140157912Abstract: An inlet apparatus is disclosed. The apparatus may include a first conduit for sampling, and a second and third conduit for directing flow throughout the inlet apparatus. Flow may be induced in two opposite directions through the second conduit, which affect the flow of gas through the first conduit for sampling. The various conduits of the apparatus may be connected to a device for inducing flow in different directions. The duration of the flow in a particular direction affects the amount of sample gas that enters a detection device.Type: ApplicationFiled: February 12, 2014Publication date: June 12, 2014Applicant: Chemring Detection Systems, Inc.Inventors: Eric Charles Wallis, Paul J. Rauch, Matthew Todd Griffin, John Michael Alfred Petinarides
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Publication number: 20140157913Abstract: An inlet apparatus is disclosed. The apparatus may include a first conduit for sampling, and a second and third conduit for directing flow throughout the inlet apparatus. Flow may be induced in two opposite directions through the second conduit, which affect the flow of gas through the first conduit for sampling. The various conduits of the apparatus may be connected to a device for inducing flow in different directions. The duration of the flow in a particular direction affects the amount of sample gas that enters a detection device.Type: ApplicationFiled: February 12, 2014Publication date: June 12, 2014Applicant: Chemring Detection Systems, Inc.Inventors: Eric Charles Wallis, Paul J. Rauch, Matthew Todd Griffin, John Michael Alfred Petinarides
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Patent number: 8667855Abstract: An inlet apparatus is disclosed. The apparatus may include a first conduit for sampling, and a second and third conduit for directing flow throughout the inlet apparatus. Flow may be induced in two opposite directions through the second conduit, which affect the flow of gas through the first conduit for sampling. The various conduits of the apparatus may be connected to a device for inducing flow in different directions. The duration of the flow in a particular direction affects the amount of sample gas that enters a detection device.Type: GrantFiled: June 10, 2010Date of Patent: March 11, 2014Assignee: Chemring Detection Systems, Inc.Inventors: Eric Charles Wallis, Paul J. Rauch, Matthew Todd Griffin, John Michael Alfred Petinarides
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Patent number: 8207492Abstract: The exemplary embodiments provide a method, system, and device for identifying chemical species in a sample. According to one embodiment, the method, system, and device may include introducing a sample gas into a differential ion mobility device, ionizing at least a portion of the sample gas to generate at least one ion species, filtering the at least one ion species between a pair of filter electrodes, generating a detection signal in response to the at least one ion species depositing a charge on a collector electrode, and detecting a spectral peak associated with the at least one ion species.Type: GrantFiled: January 16, 2009Date of Patent: June 26, 2012Assignee: Chemring Detection Systems, Inc.Inventors: Matthew Todd Griffin, John Michael Alfred Petinarides, Paul Joseph Rauch, Jerome Paul Dahl, Robert Francis McAtee
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Patent number: 8207493Abstract: The exemplary embodiments provide a method, system, and device for identifying chemical species in a sample. According to one embodiment, the method, system, and device may include introducing a sample gas into a differential ion mobility device, ionizing at least a portion of the sample gas to generate at least one ion species, filtering the at least one ion species between a pair of filter electrodes, generating a detection signal in response to the at least one ion species depositing a charge on a collector electrode, and detecting a spectral peak associated with the at least one ion species.Type: GrantFiled: January 16, 2009Date of Patent: June 26, 2012Assignee: Chemring Detection Systems, Inc.Inventors: Matthew Todd Griffin, John Michael Alfred, Paul Joseph Rauch, Jerome Paul Dahl, Robert Francis McAtee
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Patent number: 8146404Abstract: The exemplary embodiments provide a method, system, and device for identifying chemical species in a sample. According to one embodiment, the method, system, and device may include introducing a sample gas into a differential ion mobility device, ionizing at least a portion of the sample gas to generate at least one ion species, filtering the at least one ion species between a pair of filter electrodes, generating a detection signal in response to the at least one ion species depositing a charge on a collector electrode, and detecting a spectral peak associated with the at least one ion species.Type: GrantFiled: January 16, 2009Date of Patent: April 3, 2012Assignee: Chemring Detection Systems, Inc.Inventors: Matthew Todd Griffin, John Michael Alfred Petinarides, Paul Joseph Rauch, Jerome Paul Dahl, Robert Francis McAtee
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Publication number: 20120068061Abstract: The exemplary embodiments provide a method, system, and device for identifying chemical species in a sample. According to one embodiment, the method, system, and device may include introducing a sample gas into a differential ion mobility device, ionizing at least a portion of the sample gas to generate at least one ion species, filtering the at least one ion species between a pair of filter electrodes, generating a detection signal in response to the at least one ion species depositing a charge on a collector electrode, and detecting a spectral peak associated with the at least one ion species.Type: ApplicationFiled: January 16, 2009Publication date: March 22, 2012Applicant: General Dynamics Armament and Technical Products, Inc.Inventors: Matthew Todd Griffin, John Michael Alfred Petinarides, Paul Joseph Rauch, Jerome Paul Dahl, Robert Francis McAtee
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Publication number: 20110303024Abstract: An inlet apparatus is disclosed. The apparatus may include a first conduit for sampling, and a second and third conduit for directing flow throughout the inlet apparatus. Flow may be induced in two opposite directions through the second conduit, which affect the flow of gas through the first conduit for sampling. The various conduits of the apparatus may be connected to a device for inducing flow in different directions. The duration of the flow in a particular direction affects the amount of sample gas that enters a detection device.Type: ApplicationFiled: June 10, 2010Publication date: December 15, 2011Applicant: General Dynamics Armament and Technical ProductsInventors: Eric Charles WALLIS, Paul J. Rauch, Matthew Todd Griffin, John Michael Alfred Petinarides
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Patent number: 7751999Abstract: The present invention can be generally described as a vapor detection instrument testing system and testing process. This testing system integrates a computing system loaded with testing software, and a test-substance generating device. The present device is portable and provides a user with the ability to perform vapor detection instrument testing at the field side of the vapor detection instrument. The portability of the vapor detection instrument testing system results in more frequent instrument testing and less detection instrument down time.Type: GrantFiled: March 19, 2008Date of Patent: July 6, 2010Assignee: The United States of America as represented by the Secretary of the NavyInventors: Robert F. McAtee, Michael A. Eagan, Eric Wallis, Norman Popkie, Jr., Matthew Todd Griffin
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Publication number: 20090212207Abstract: The exemplary embodiments provide a method, system, and device for identifying chemical species in a sample. According to one embodiment, the method, system, and device may include introducing a sample gas into a differential ion mobility device, ionizing at least a portion of the sample gas to generate at least one ion species, filtering the at least one ion species between a pair of filter electrodes, generating a detection signal in response to the at least one ion species depositing a charge on a collector electrode, and detecting a spectral peak associated with the at least one ion species.Type: ApplicationFiled: January 16, 2009Publication date: August 27, 2009Applicant: General Dynamics Armament and Technical Products, Inc.Inventors: Matthew Todd Griffin, John Michael Alfred Petinarides, Paul Joseph Rauch, Jerome Paul Dahl, Robert Francis McAtee
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Publication number: 20090121128Abstract: The exemplary embodiments provide a method, system, and device for identifying chemical species in a sample. According to one embodiment, the method, system, and device may include introducing a sample gas into a differential ion mobility device, ionizing at least a portion of the sample gas to generate at least one ion species, filtering the at least one ion species between a pair of filter electrodes, generating a detection signal in response to the at least one ion species depositing a charge on a collector electrode, and detecting a spectral peak associated with the at least one ion species.Type: ApplicationFiled: January 16, 2009Publication date: May 14, 2009Applicant: General Dynamics Armament and Technical Products, Inc.Inventors: Matthew Todd Griffin, John Michael Alfred Petinarides, Paul Joseph Rauch, Jerome Paul Dahl, Robert Francis McAtee
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Patent number: 7361206Abstract: The present invention is directed to an apparatus and a method for continuously removing water vapor from a closed loop, re-circulated gas flow in an ion mobility spectrometer using a water permeable membrane, having a first side and a second side opposite the first side. The gas flow is disposed adjacent and carried past the first side to deposit water vapor that passes through the membrane to the second side. An exhaust flow is disposed adjacent and carried passed the second side of the membrane to remove the water vapor from the system. Therefore, the water removal apparatus continuously regenerates in-situ. Heaters, heat sinks and additional treatment systems including charcoal filters can also be included in the system to enhance its performance.Type: GrantFiled: September 7, 2004Date of Patent: April 22, 2008Assignee: United States of America as represented by the Secretary of the NavyInventors: Michael D. Jahn, Matthew Todd Griffin, Norman Popkie, Jr.