Patents by Inventor Michael P. Duncan
Michael P. Duncan 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: 9587197Abstract: A processing fluid that is free of boron and secondary amines includes a petroleum-based or non-petroleum-based oil; water; and an additive composition comprising a long chain primary amine; an tertiary cycloalkylamine; and an amino acid.Type: GrantFiled: February 3, 2014Date of Patent: March 7, 2017Assignee: FUCHS PETROLUB SEInventors: Michael P. Duncan, D. James Deodhar, Gema del Olmo Tomás, Heinz Gerhard Theis, Paul Roger Littley
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Publication number: 20160201000Abstract: A processing fluid that is free of boron and secondary amines includes a petroleum-based or non-petroleum-based oil; water; and an additive composition comprising a long chain primary amine; an tertiary cycloalkylamine; and an amino acid.Type: ApplicationFiled: February 3, 2014Publication date: July 14, 2016Inventors: Michael P. Duncan, D. James Deodhar, Gema del Olmo Tomas, Heinz Gerhard Theis, Paul Roger Littley
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Patent number: 7158700Abstract: A fiber optic transceiver (37) is adapted for use in transmitting and receiving optical signals in a fiber-optic network (30). The improved transceiver comprising: a multi-mode optical fiber (36) having a longitudinal axis (x—x) and having a proximal end (35). The fiber is adapted to convey optical signals in either direction therealong. A photodetector (32) is arranged in longitudinally-spaced relation to the fiber proximal end. The photodetector has a sensitive surface (34) operatively arranged to receive light energy exiting the fiber through the proximal end. A light source (31) is arranged between the fiber proximal end and the photodetector surface. The light source is arranged to selective emit light energy into the fiber through the proximal end.Type: GrantFiled: May 14, 2004Date of Patent: January 2, 2007Assignee: Moog Inc.Inventors: Michael P. Duncan, Kanwai P. Lo, Larry D. Vaught, Barry K. Witherspoon
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Patent number: 6104849Abstract: Unidirectional and bi-directional fiber optic rotary joints are disclosed for coupling at least one optical signal across a rotary interface. The unidirectional joint includes a stator having a waveguide. A rotor is rotatable through a full 360.degree. revolution and is concentric to the stator. Light transmitters are positioned on a first circumference and connected to one of the stator and the rotor. Each of the transmitters emits an optical signal. Light receivers are positioned on a second circumference and connected to the other one of the stator and the rotor. Each of the transmitted optical signals is emitted tangentially into the waveguide and is reflected in short chordal lengths along the waveguide. Each optical signal is received by at least one of the second plurality of light receivers through the full 360.degree. revolution of the rotor. The number of light receivers is greater than the number of light transmitters. Certain receivers do not receive an optical signal during a portion of the 360.Type: GrantFiled: July 15, 1998Date of Patent: August 15, 2000Assignee: Litton Systems, Inc.Inventors: Norris Earl Lewis, Anthony Lee Bowman, Robert Thomas Rogers, Sr., Michael P. Duncan
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Patent number: 5991478Abstract: Unidirectional and bidirectional fiber optic rotary joints are disclosed for coupling at least one optical signal across a rotary interface. The unidirectional joint includes a stator having a waveguide. A rotor is rotatable through a full 360.degree. revolution and is concentric to the stator. Light transmitters are positioned on a first circumference and connected to one of the stator and the rotor. Each of the transmitters emits an optical signal. Light receivers are positioned on a second circumference and connected to the other one of the stator and the rotor. Each of the transmitted optical signals is emitted tangentially into the waveguide and is reflected in short chordal lengths along the waveguide. Each optical signal is received by at least one of the second plurality of light receivers through the full 360.degree. revolution of the rotor. The number of light receivers is greater than the number of light transmitters. Certain receivers do not receive an optical signal during a portion of the 360.Type: GrantFiled: October 2, 1997Date of Patent: November 23, 1999Assignee: Litton Systems, IncorporatedInventors: Norris Earl Lewis, Anthony Lee Bowman, Robert Thomas Rogers, Sr., Michael P. Duncan
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Patent number: 5583186Abstract: The present invention provides a new and improved process for preparing a polybutene amine composition comprising the steps of reacting a chlorinated polybutene with an excess of at least one mole of at least one type of an amine compound per mole of the chlorinated polybutene at a reaction temperature of at least about 100.degree. C.; neutralizing the reaction mixture with calcium oxide; and recovering the polybutene amine composition, the recovery process including the steps of removing the formed water and the neutralized and excess of the amine compound and removing inorganic solids using a non-aqueous separation technique such as filtration. During the neutralization step, water formation is kept to a minimum and no water is intentionally added to the process thereby minimizing resultant waste streams and/or undesirable by-products.Type: GrantFiled: June 1, 1995Date of Patent: December 10, 1996Assignee: Ferro CorporationInventor: Michael P. Duncan
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Patent number: 5455703Abstract: A hybrid fiber optic transceiver is described which includes a transmitter for converting electrical data signals to corresponding light energy, a receiver for converting optical data signals back to electrical data signals and a clock recovery mechanism to maintain the electrical data signals outputs from the receiver in their proper order. The transceiver includes an optical splitter or coupler that allows light signals to be transmitted and received over a single fiber. The opto-electrical hybrid circuitry of the transceiver and the fiber optic coupler are enclosed in a small light weight package which is hermetically sealed.Type: GrantFiled: October 27, 1993Date of Patent: October 3, 1995Assignee: Litton Systems, Inc.Inventors: Michael P. Duncan, Norris E. Lewis, Michael B. Miller, Robert T. Rogers, Sr.
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Patent number: 5285512Abstract: A hybrid fiber optic transceiver is described which includes a transmitter for converting electrical data signals to corresponding light energy, a receiver for converting optical data signals back to electrical data signals and a clock recovery mechanism to maintain the electrical data signals outputs from the receiver in their proper order. The transceiver includes an optical splitter or coupler that allows light signals to be transmitted and received over a single fiber. The opto-electrical hybrid circuitry of the transceiver and the fiber optic coupler are enclosed in a small light weight package which is hermetically sealed.Type: GrantFiled: June 24, 1992Date of Patent: February 8, 1994Assignee: Litton Systems, Inc.Inventors: Michael P. Duncan, Norris E. Lewis, Michael B. Miller, Robert T. Rogers, Sr.
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Patent number: 5055112Abstract: A diesel fuel composition comprising a major amount of a hydrocarbon based compression ignition fuel and a minor particulate-reducing amount of an aliphatic 1,2-diol.Type: GrantFiled: October 30, 1989Date of Patent: October 8, 1991Assignee: Ethyl Petroleum Additives, Inc.Inventors: Michael P. Duncan, Alexander M. Kulinowski