Patents by Inventor David G. O'Connor

David G. O'Connor 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: 10328412
    Abstract: The current disclosure is directed to a hydrogen-storage system that employs catalytic dehydrogenation of low-molecular-weight amines in a hydrogen reactor. The hydrogen-storage system comprises aliphatic amines and di-amines as organic carriers that store hydrogen covalently, a hydrogen reactor that releases and separates hydrogen gas from the carrier, and metal or metal-oxide catalysts that promote a dehydrogenation reaction to release hydrogen. In certain implementations, a metal or metal-oxide catalyst may be carried on high-surface-area support materials, such as gamma-alumina and metal-organic-framework materials, to enhance catalytic properties. The hydrogen reactor may be a packed-bed reactor, a monolith reactor, or a flow-through hydrogen-membrane reactor.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: June 25, 2019
    Inventors: Esmaeel Naeemi, David G. O'Connor, Maitham Naeemi
  • Patent number: 9623393
    Abstract: There is disclosed a surprising reaction of an alkane thiol with a catalyst and heat to become dehydrogenated and form a thiophene rather than an expected desulfurization reaction to form the corresponding alkane or alkene. Moreover, there are disclosed surprising results regarding the form of a catalyst to allow a reaction of an alkane thiol to form the dehydrogenated thiophene at lower temperatures and at higher conversion percentages to allow for more efficient recovery of thiophenes to allow for recycling and reuse of thiophenes to hydrogenate to form alkane thiols. Further still, there is disclosed a set of reaction conditions and catalyst presentation that allows for recovery of usable diatomic hydrogen gas from a dehydrogenation reaction of substituted or unsubstituted cyclic thioethers to substituted or unsubstituted thiophene.
    Type: Grant
    Filed: November 1, 2009
    Date of Patent: April 18, 2017
    Assignee: ASEMBLON, INC.
    Inventors: Esmaeel Naeemi, Mangesh Bore, David G. O'Connor, Robert B. Nelson
  • Publication number: 20140134100
    Abstract: The current disclosure is directed to a hydrogen-storage system that employs catalytic dehydrogenation of low-molecular-weight amines in a hydrogen reactor. The hydrogen-storage system comprises aliphatic amines and di-amines as organic carriers that store hydrogen covalently, a hydrogen reactor that releases and separates hydrogen gas from the carrier, and metal or metal-oxide catalysts that promote a dehydrogenation reaction to release hydrogen. In certain implementations, a metal or metal-oxide catalyst may be carried on high-surface-area support materials, such as gamma-alumina and metal-organic-framework materials, to enhance catalytic properties. The hydrogen reactor may be a packed-bed reactor, a monolith reactor, or a flow-through hydrogen-membrane reactor.
    Type: Application
    Filed: January 16, 2014
    Publication date: May 15, 2014
    Applicant: ASEMBON INC.
    Inventors: Esmaeel Naeemi, David G. O'Connor, Maitham Naeemi
  • Patent number: 8092558
    Abstract: There is disclosed a microchannel reactor module for the immediate catalytic release of hydrogen from hydrogenated organic molecules along with the recovery of hydrogen gas and the recovery of dehydrogenated organic molecules as a liquid. More specifically, the disclosure provides a polyimide-based microchannel plate that is particularly useful for a process of immediate catalytic release of hydrogen from a hydrogenated organic molecule or formulation of molecules.
    Type: Grant
    Filed: January 20, 2009
    Date of Patent: January 10, 2012
    Assignee: Asemblon, Inc.
    Inventors: David G. O'Connor, Robert B. Nelson
  • Publication number: 20100210878
    Abstract: There is disclosed a process for hydrogen release and chemical storage by dehydrogenating low molecular weight aliphatic amines and di-amines to produce their corresponding nitriles in a reactor system containing a hydrogen fractionation membrane (or sweep gas) to quickly remove any and all hydrogen generated during the dehydrogenation reaction. This disclosure further provides a process for hydrogen recovery using bi- and tri-functional amines that produce corresponding nitriles and high density hydrogen release.
    Type: Application
    Filed: February 17, 2010
    Publication date: August 19, 2010
    Applicant: Asemblon, Inc.
    Inventors: Esmaeel Naeemi, David G. O'Connor
  • Publication number: 20090211397
    Abstract: There is disclosed a flexible motor coupling device that provides for distance changes along a lateral axis between a motor shaft and a device to be actuated (such as a valve shaft). More specially, there is disclosed a motor coupling device comprising an outer casing having an axis therein and a carriage shaft, wherein the carriage shaft moves laterally along the axis of rotation and is surrounded by ball bearings.
    Type: Application
    Filed: February 17, 2009
    Publication date: August 27, 2009
    Inventors: David G. O'Connor, Robert B. Nelson
  • Publication number: 20090194714
    Abstract: There is disclosed a fiber optic liquid level sensor apparatus that functions using total internal reflection and an index of refraction. More specifically, there is disclosed a fiber optic liquid level sensor apparatus comprising two fiber optic strands, each having a first end and a second end, substantially oriented in parallel to each other, wherein the second ends of both strands are attached to each other.
    Type: Application
    Filed: December 3, 2008
    Publication date: August 6, 2009
    Inventors: Robert B. Nelson, David G. O'Connor