Patents by Inventor Jonathan Geoffrey Gore
Jonathan Geoffrey Gore 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: 8659209Abstract: A multistage flextensional transducer includes at least one inner elongate driver member within and mechanically coupled to an inner shell that is nested within an outer shell; the inner shell comprising a pair of contact portions abutting the driver member and a pair of transmission portions on opposite sides of the inner shell between the contact portions; the outer shell being arranged so that the transmission portions act as bridging driver members between the said inner and outer shells, flexure of the outer shell being driven, on actuation of the transducer, by movement of the bridging driver members. The transducer may act as a push or pull actuator or sensor, may magnify displacement and may employ smart materials as driver members. Also cylindrical modules containing thin flextensional actuators may provide axial displacement in a downhole environment and may move a device axially along a downhole pipe or close a valve opening or inch along the pipe.Type: GrantFiled: March 8, 2012Date of Patent: February 25, 2014Assignee: Qinetiq LimitedInventors: Ahmed Yehia Amin Abdel Rahman, Jonathan Geoffrey Gore, Fiona Louise Lowrie, Richard Carson McBride
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Publication number: 20120217845Abstract: A multistage flextensional transducer includes at least one inner elongate driver member within and mechanically coupled to an inner shell that is nested within an outer shell; the inner shell comprising a pair of contact portions abutting the driver member and a pair of transmission portions on opposite sides of the inner shell between the contact portions; the outer shell being arranged so that the transmission portions act as bridging driver members between the said inner and outer shells, flexure of the outer shell being driven, on actuation of the transducer, by movement of the bridging driver members. The transducer may act as a push or pull actuator or sensor, may magnify displacement and may employ smart materials as driver members. Also cylindrical modules containing thin flextensional actuators may provide axial displacement in a downhole environment and may move a device axially along a downhole pipe or close a valve opening or inch along the pipe.Type: ApplicationFiled: March 8, 2012Publication date: August 30, 2012Applicant: QINETIQ LIMITEDInventors: Ahmed Yehia Amin Abdel RAHMAN, Jonathan Geoffrey GORE, Fiona Louise LOWRIE, Richard Carson MCBRIDE
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Patent number: 8159114Abstract: A multistage flextensional transducer includes at least one inner elongate driver member within and mechanically coupled to an inner shell that is nested within an outer shell; the inner shell comprising a pair of contact portions abutting the driver member and a pair of transmission portions on opposite sides of the inner shell between the contact portions; the outer shell being arranged so that the transmission portions act as bridging driver members between the said inner and outer shells, flexure of the outer shell being driven, on actuation of the transducer, by movement of the bridging driver members. The transducer may act as a push or pull actuator or sensor, may magnify displacement and may employ smart materials as driver members. Also cylindrical modules containing thin flextensional actuators may provide axial displacement in a downhole environment and may move a device axially along a downhole pipe or close a valve opening or inch along the pipe.Type: GrantFiled: October 30, 2008Date of Patent: April 17, 2012Assignee: Qinetiq LimitedInventors: Ahmed Yehia Amin Abdel Rahman, Jonathan Geoffrey Gore, Fiona Louise Lowrie, Richard Carson McBride
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Patent number: 8133041Abstract: A high pressure pump for use in the injection of liquid chemicals into subsea oil or gas wells, and intended to be positioned in the subsea environment adjacent to the wellhead, comprises a piezoelectric actuator (19) for reciprocating a plunger (22) which acts to compress and expand the effective volume of a pumping chamber (29) having a valved inlet (15) connected to a source of the liquid and a valved outlet (16) to lead the liquid to the well. The device has a minimum of moving parts and in particular avoids the need for any rotating parts and attendant high performance bearings and seals.Type: GrantFiled: December 21, 2007Date of Patent: March 13, 2012Assignee: Qinetiq LimitedInventors: Jeremy Leonard Clive Ludlow, Jonathan Geoffrey Gore, Adrian Robert Bowles, Mark Gregory Maylin, Richard Carson McBride, Abdul-Salam Kaddour, Ahmed Yehia Amin Abdel-Rahman
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Publication number: 20100320870Abstract: A flextensional transducer that can be stored at room temperature and activated and operated at an elevated temperature in excess of 200° C.Type: ApplicationFiled: October 30, 2008Publication date: December 23, 2010Applicant: QinetiQ LimitedInventors: Ahmed Yehia Amin Abdel Rahman, Jonathan Geoffrey Gore, Fiona Louise Lowrie
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Publication number: 20100308689Abstract: A multistage flextensional transducer includes at least one inner elongate driver member within and mechanically coupled to an inner shell that is nested within an outer shell; the inner shell comprising a pair of contact portions abutting the driver member and a pair of transmission portions on opposite sides of the inner shell between the contact portions; the outer shell being arranged so that the transmission portions act as bridging driver members between the said inner and outer shells, flexure of the outer shell being driven, on actuation of the transducer, by movement of the bridging driver members. The transducer may act as a push or pull actuator or sensor, may magnify displacement and may employ smart materials as driver members. Also cylindrical modules containing thin flextensional actuators may provide axial displacement in a downhole environment and may move a device axially along a downhole pipe or close a valve opening or inch along the pipe.Type: ApplicationFiled: October 30, 2008Publication date: December 9, 2010Applicant: QINETIQ LIMITEDInventors: Ahmed Yehia Amin Abdel Rahman, Jonathan Geoffrey Gore, Fiona Louise Lowrie, Richard Carson McBride
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Patent number: 7715611Abstract: In order to check the authenticity of a banknote or other such document it is printed with two patches of magnetisable ink, and each patch is magnetised to present a multipole sequence of alternating polarity. If the document is folded to bring the two patches together and then rubbed to and fro in the direction of the pole sequences, they will be subject to alternating forces of attraction and repulsion which can be sensed through the fingertips and gives the impression of a physically rippled texture notwithstanding that the patches actually have a smooth surface. The presence or absence of this effect can therefore be used to distinguish between a genuine document bearing such magnetised patches and a counterfeit which may be visually identical but lacks the correct magnetisation. In a variant only one of the patches is printed on the document itself and the other is on a separate “key” device which is rubbed over it to test for the presence of the correct magnetisation.Type: GrantFiled: August 19, 2004Date of Patent: May 11, 2010Assignee: Qinetiq LimitedInventors: Stuart John Eaton, Jonathan Geoffrey Gore, Christopher Robert Lawrence, George Jiri Tomka, Adam Daykin
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Publication number: 20100074776Abstract: A high pressure pump for use in the injection of liquid chemicals into subsea oil or gas wells, and intended to be positioned in the subsea environment adjacent to the wellhead, comprises a piezoelectric actuator (19) for reciprocating a plunger (22) which acts to compress and expand the effective volume of a pumping chamber (29) having a valved inlet (15) connected to a source of the liquid and a valved outlet (16) to lead the liquid to the well. The device has a minimum of moving parts and in particular avoids the need for any rotating parts and attendant high performance bearings and seals.Type: ApplicationFiled: December 21, 2007Publication date: March 25, 2010Applicant: QINETIQ LIMITEDInventors: Jeremy Leonard Clive Ludlow, Jonathan Geoffrey Gore, Adrian Robert Bowles, Mark Gregory Maylin, Richard Carson McBride, Abdul-Salam Kaddour, Ahmed Yehia Amin Abdel-Rahman
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Publication number: 20080277941Abstract: A device for the generation of electrical power from a fluid flow, and more particularly for harvesting power from flows downhole in oil or gas wells, comprises a cylinder or other blunt body (1) arranged crosswise to the flow and supported on the end of a sprung cantilever arm (3) held in a fixed mount, with freedom to oscillate in response to the shedding of a Karman vortex trail v from the? body. The resultant motion of the body (1) and arm (3) is converted into electrical energy by piezoelectric material (5) which is attached to, and stressed by, flexure of the arm. Other arrangements of piezoelectric and inductive power generation from the oscillation of the device are described.Type: ApplicationFiled: December 19, 2006Publication date: November 13, 2008Applicant: QINETIQ LIMITEDInventors: Adrian Robert Bowles, Stuart John Eaton, Jonathan Geoffrey Gore, Richard Carson McBride, Ahmed Yehia Amin Rahman
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Patent number: 6910384Abstract: A stress or magnetic field sensor comprising a generally elongate magnetically soft amorphous or nanocrystalline electrically resistive element and biasing means for applying to the element a bias magnetic field of which the component directed along the length of the sensor has an amplitude variation pattern along the element. A periodically varying pattern has the effect of reducing the sensitivity of a stress sensor to external ambient fields (FIG. 3 shows that with a sawtooth bias field the sensitive portions a of a sensor move to positions b in the presence of an ambient field, but their number remains the same). A ramped bias field enables the position of the sensitive region of the sensor to be controlled, for measuring local stress, or for mapping an external magnetic field. Control of the regions where the sensor is active may include selective conductive coating of portions of its length.Type: GrantFiled: March 20, 2002Date of Patent: June 28, 2005Assignee: QuinetiQ LimitedInventors: George Jiri Tomka, Jonathan Geoffrey Gore, Mark Gregory Maylin, James Carl Milne
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Publication number: 20040103725Abstract: A stress or magnetic field sensor comprises a generally elongate magnetically soft amorphous or nanocrystalline electrically resistive element and biasing means for applying to the element a bias magnetic field of which the component directed along the length of the sensor has an amplitude variation pattern along the element. A periodically varying pattern has the effect of reducing the sensitivity of a stress sensor to external ambient fields (FIG. 3 shows that with a sawtooth bias field the sensitive portions a of a sensor move to positions b in the presence of an ambient field, but their number remains the same). A ramped bias field enables the position of the sensitive region of the sensor to be controlled, for measuring local stress, or for mapping an external magnetic field. Control of the regions where the sensor is active may include selective conductive coating of portions of its length.Type: ApplicationFiled: September 22, 2003Publication date: June 3, 2004Inventors: George Jiri Tomka, Jonathan Geoffrey Gore, Mark Gregory Maylin, James Carl Milne