Patents by Inventor Daniel Robertson
Daniel Robertson 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).
-
Publication number: 20160089121Abstract: A biopsy system driver includes a motor having a rotatable output shaft, a support structure, a drive shaft, an elongate lead screw and a biopsy instrument drive member. The drive shaft is rotatably coupled to the support structure and includes or is otherwise operatively connected to the motor output shaft such that activation of the motor rotates the drive shaft. The elongate lead screw is coupled to the drive shaft such that rotation of the drive shaft rotates the lead screw about an axis of the lead screw. The lead screw is axially translatable relative to the drive shaft and to the support structure. The biopsy instrument drive member is threadably coupled to the lead screw such that rotation of the lead screw causes axial translation of one of the lead screw and biopsy instrument drive member relative to the other one and to the support structure.Type: ApplicationFiled: September 24, 2015Publication date: March 31, 2016Inventors: Joseph A. Stand, III, Kevin M. Thompson, Christian M. Ulm, Arnold Oyola, Fareeha Safir, Daniel Robertson, Thomas Fisk, Peter Wolton
-
Publication number: 20150318730Abstract: In an inductively coupled power transmitter a force detector that detects the presence of a potential device by monitoring forces applied to a surface of the power transmitter and activates the inductively coupled power transmitter upon detection of a potential device. An inductively coupled power transmitter having a proximity detector that detects the presence and location of a potential device by monitoring the proximity of devices to a surface of the power transmitter and activates the inductively coupled power transmitter upon detection of a potential device. The transmitter preferably has one or more detection coils each having an area much greater than that of the transmitter coils for detecting the presence of a potential device.Type: ApplicationFiled: November 5, 2013Publication date: November 5, 2015Inventors: Kunal BHARGAVA, Fady MISHRIKI, Saining REN, Daniel ROBERTSON, Nigel James GRAY, Rex HUANG
-
Publication number: 20150295418Abstract: An inductive power transfer receiver is provided including a receiving coil (13) in series with a capacitor (14), a voltage multiplier (15) for providing a DC output, and a power control switch (18) controlled by a controller (19) for regulating the power supplied to a load. An inductive power transfer receiver is provided including a receiving coil in series with a capacitor, a charge pump for providing a DC output, and a power control switch controlled by a controller for regulating the power supplied to a load. A method of power flow control in an inductive power transfer circuit having a power control switch is also provided. The method includes detecting two operational transitions in the circuit and determining a reference timing bases on which operational transition is detected earliest within a detection window. The reference timing is used to developing a signal for controlling the power control switch.Type: ApplicationFiled: October 29, 2013Publication date: October 15, 2015Inventors: Saining Ren, Lawrence Bernardo Dela Cruz, Daniel Robertson
-
Publication number: 20150243380Abstract: A method of constructing a nuclear reactor module includes providing formwork defining a chamber in which is mounted a nuclear reactor comprising a nuclear reactor pressure vessel configured to contain nuclear fuel when in use, the formwork being housed within a containment structure configured to contain an internal pressure generated by an escape of coolant from a reactor coolant circuit. The method further includes filling one or more voids within the formwork with concrete through at least one concrete supply pipe that extends from outside of the containment structure, through the containment structure, and to the formwork; and venting the one or more voids within the formwork through one or more vent pipes, thereby forming a concrete support structure for the nuclear reactor.Type: ApplicationFiled: March 3, 2015Publication date: August 27, 2015Inventor: Daniel ROBERTSON
-
Publication number: 20150150542Abstract: A biopsy instrument driver includes a drive member having a laterally extending catch arm and movable between a distal, fired position and a proximal, armed position. A reversible motor has a rotatable output comprising or otherwise being operatively connected to a drive shaft, such that activation of the motor rotates the drive shaft. A translating member is threadably coupled to the drive shaft, wherein rotation of the drive shaft causes axial translation of the translating member along the drive shaft. A latch base is operatively associated with the translating member. A latch arm is pivotally coupled to the latch base, and has a distal portion configured to selectively engage and retain the drive member catch arm, and a proximal portion operatively coupled to the translating member, such that movement of the translating member relative to the latch base pivots latch arm distal portion.Type: ApplicationFiled: November 26, 2014Publication date: June 4, 2015Inventor: Daniel Robertson
-
Publication number: 20140306545Abstract: An inductively coupled power transfer receiver including a tunable circuit and a power supply circuit. The tunable circuit includes a power receiving coil in series with a first capacitance and a first variable impedance connected in parallel with the power receiving coil. The variable impedance includes at least one impedance element and one or more semiconductor devices for controlling the effective impedance of the first variable impedance. The first variable impedance may be a second capacitance in series with the first semiconductor device; an inductance in parallel with the first semiconductor device; a second capacitance in parallel with the first semiconductor device; or a capacitance and an inductor in parallel with the first semiconductor device. The power supply circuit includes a power control circuit which provides a control signal to the first variable impedance based on an output voltage produced by the power supply circuit.Type: ApplicationFiled: July 6, 2012Publication date: October 16, 2014Applicant: POWERBYPROXI LIMITEDInventors: Daniel Robertson, Kunal Bhargava, Aiguo Hu
-
Publication number: 20140232330Abstract: A wirelessly rechargeable battery is provided having coils oriented off major battery axes to facilitate good coupling with power transmitter magnetic fields. A magnetic core may house charging electronics for a compact form factor. A wireless power transmitter that produces fields to maximize coupling with receiver coils.Type: ApplicationFiled: November 16, 2011Publication date: August 21, 2014Applicant: POWERBYPROXI LIMITEDInventors: Daniel Robertson, Kunal Bhargava, Thushari Gomes
-
Publication number: 20140021795Abstract: A contactless inductively coupled power transfer system is provided_including multiple pairs of power transmitter and power receiver coils and a power management module for controlling the supply of power to transmitter coils or the power supplied by the power receiver module to loads. The design is particularly suited for use in a wind turbine to supply power to the nacelle. The transmitter coils may be driven in phase at the same frequency or at different frequencies selected to avoid interaction between transmitter coils and the power transmitter module. The transmitter and receiver coils may be arranged in a traditional slip ring type configuration with adjacent coil pairs are physically spaced apart to avoid cross coupling with adjacent transmitter and receiver coil pairs shielded from each other. The power transmitter module may employ Zero Voltage Switching (ZVS).Type: ApplicationFiled: September 23, 2011Publication date: January 23, 2014Applicant: POWERBYPROXI LIMITEDInventors: Daniel Robertson, Kunal Bhargava, Fady Mishriki, Saining Sunny Ren, Robert Walton, Eugenio Sia Lecias, JR.
-
Publication number: 20130229065Abstract: A magnetic shield for shielding adjacent coils of an ICPT system. One or more conductors are configured to distribute induced eddy currents from the surface of the shield to below the surface and thus reduce heating due to eddy currents. The magnetic shield may be employed to transfer power over rotary couplings, such as the shaft of a wind turbine.Type: ApplicationFiled: July 14, 2011Publication date: September 5, 2013Applicant: PowerbyProxi LimitedInventors: Daniel Robertson, Kunal Bhargava, Fady Mishriki, Saining Sunny Ren
-
Patent number: 8419361Abstract: An anti-fret assembly for a turbine engine, the assembly comprising an elongated liner having first and second walls connected by a base to provide a generally U-shaped channel, the liner having an outer surface adapted to lie against a first component and an inner surface adapted to lie against a second component at least the first wall being provided with a notch for receipt of an anti-translation pin, the assembly further comprising an anti-translation pin.Type: GrantFiled: August 31, 2011Date of Patent: April 16, 2013Assignee: Rolls-Royce PLCInventor: Daniel Robertson
-
Publication number: 20130008173Abstract: A method of starting a gas turbine cycle including a gas turbine and a heat recovery steam generator, the method including: heating water in a steam cycle with a base load heat source; powering one or more steam turbines with steam from said steam cycle; and diverting a portion of the steam from the steam cycle to the gas turbine cycle. Also disclosed is a power generation assembly connectable to a base load heat source arranged to heat water in a steam cycle and power a steam turbine, the power generation assembly including: a gas turbine cycle including a gas turbine and a heat recovery steam generator; and diverting apparatus configured to selectively divert a portion of steam from the steam cycle to the gas turbine cycle on start up of the gas turbine.Type: ApplicationFiled: February 9, 2011Publication date: January 10, 2013Applicant: ROLLS-ROYCE PLCInventors: Paul Fletcher, Andrew C Graham, Daniel Robertson, Anthony J Donaldson
-
Publication number: 20120243650Abstract: A nuclear installation 10 comprises a cavity 22 which is defined by at least one cavity wall 20 and which is arranged to contain nuclear fuel and a liquid for shielding radiation emitted from the fuel. A barrier 30 is arranged to be deployed within the cavity 22 to define a sub-region 34 within the cavity 20 within which fuel can be contained or transported so as to keep the fuel away from the at least one cavity wall 22 by a predetermined distance. The invention also concerns a method for refuelling a reactor vessel 18.Type: ApplicationFiled: March 8, 2012Publication date: September 27, 2012Applicant: ROLLS-ROYCE PLCInventor: Daniel ROBERTSON
-
Publication number: 20120236979Abstract: A part-built nuclear reactor module 100 comprises a containment structure 12 housing therein nuclear reactor equipment 18 mounted to formwork 30. At least one concrete supply pipe 36 is provided that extends from outside of the containment structure 12 to the formwork 30. The formwork 30 can be filled with concrete through the concrete supply pipe 36 to form a concrete support structure 16 for the nuclear reactor equipment 18. A method for constructing a nuclear reactor module 10 is also provided.Type: ApplicationFiled: February 17, 2012Publication date: September 20, 2012Applicant: ROLLS-ROYCE PLCInventor: Daniel ROBERTSON
-
Patent number: 8267646Abstract: A method is disclosed for assembling a multi-stage compressor or a multi-stage turbine for use in a gas-turbine engine. The method comprises the steps of assembling a rotor drum so as to comprise a plurality of rotor discs 17, 18, and then releasably connecting a plurality of static components 38 to the assembled rotor drum 19, thus forming an intermediate structure. The intermediate structure is then inserted within an outer casing 50, preferably by lowering the outer casing 50 over the intermediate structure, whereafter the static components 38 are fixed to the outer casing 50. The static components 38 are then released from their connection to the rotor drum 19 in order to permit rotation of the drum 19 relative to the static components 38 and the outer casing 50.Type: GrantFiled: June 19, 2009Date of Patent: September 18, 2012Assignee: Rolls-Royce PLCInventor: Daniel Robertson
-
Publication number: 20120076659Abstract: An anti-fret assembly for a turbine engine, the assembly comprising an elongate liner having first and second walls connected by a base to provide a generally U-shaped channel, the liner having an outer surface adapted to lie against a first component and an inner surface adapted to lie against a second component, at least the first wall being provided with a notch for receipt of an anti-translation pin, the assembly further comprising an anti-translation pin.Type: ApplicationFiled: August 31, 2011Publication date: March 29, 2012Applicant: ROLLS-ROYCE PLCInventor: Daniel ROBERTSON
-
Publication number: 20100034648Abstract: A method is disclosed for assembling a multi-stage compressor or a multi-stage turbine for use in a gas-turbine engine. The method comprises the steps of assembling a rotor drum so as to comprise a plurality of rotor discs 17, 18, and then releasably connecting a plurality of static components 38 to the assembled rotor drum 19, thus forming an intermediate structure. The intermediate structure is then inserted within an outer casing 50, preferably by lowering the outer casing 50 over the intermediate structure, whereafter the static components 38 are fixed to the outer casing 50. The static components 38 are then released from their connection to the rotor drum 19 in order to permit rotation of the drum 19 relative to the static components 38 and the outer casing 50.Type: ApplicationFiled: June 19, 2009Publication date: February 11, 2010Applicant: ROLLS-ROYCE PLCInventor: Daniel Robertson
-
Publication number: 20090133408Abstract: A gas turbine engine re-pressurisation device (36) for cooled cooling fluid, the re-pressurisation device (36) comprising a compressor stage (42) and a turbine stage (46), characterised in that a common mounting means (58) is provided between the compressor stage (42) and the turbine stage (46) such that one of the compressor stage (42) and the turbine stage (46) is located radially inwardly of the other, the re-pressurisation device (36) further comprising fluid flow directing means (44) to direct a first portion of the fluid (40) through the compressor stage (42) and a second portion (54) through the turbine stage (46).Type: ApplicationFiled: April 18, 2008Publication date: May 28, 2009Applicant: ROLLS-ROYCE PLCInventor: Daniel Robertson
-
Publication number: 20080093500Abstract: A rotorcraft having an enhanced configuration in which a simple wing and a propulsive anti-torque system are combined is disclosed. The propulsive anti-torque system includes an anti-torque thruster system in which a variable pitch fan is installed internal to the tail boom of the rotorcraft and an anti-torque thruster nozzle is mounted at the extremity of the tail boom. The fan is driven directly from the main rotor drive. The configuration and location of the fan allows the primary exhaust from the engine to be mixed with the compressed air flow from the fan. The mixed air flow from the fan and the engine passes through the tail boom and out the thruster nozzle.Type: ApplicationFiled: September 28, 2004Publication date: April 24, 2008Inventors: Dudley Smith, Walter Joiner, Paul Madej, Charles Hollimon, Daniel Robertson
-
Publication number: 20070276388Abstract: Surgical staples and annulus closure tools, used in methods of repairing torn body tissue, implementing inter-vertebral disk surgery, sealing an inter-vertebral disk incision, preventing or inhibiting disk herniation, and/or stimulating or facilitating healing of an inter-vertebral disk; have two, three or four legs attached by connecting members. The legs optionally have projections protruding therefrom to restrict motion of the staple relative to the body tissue, and said projections may be angled to restrict motion in any desired direction.Type: ApplicationFiled: February 15, 2007Publication date: November 29, 2007Inventors: Daniel Robertson, David Szalay
-
Patent number: D739335Type: GrantFiled: October 24, 2013Date of Patent: September 22, 2015Assignee: Bell Helicopter Textron Inc.Inventors: Daniel Robertson, Berlin Benfield, Cory Hitte, Kirk Groninga