Patents by Inventor Derek Lee
Derek Lee 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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Publication number: 20100065035Abstract: An appliance includes a housing having an airflow channel communicating with outside of the appliance; a first chamber in the housing and having a first opening; a first door for selectively closing the first opening, the first door having a first airway communicating with the outside of the appliance; a second chamber in the housing and having a second opening; a second door for selectively closing the second opening, the second door having a second airway communicating with the outside of the appliance; and a fan in the airflow channel. The airflow channel includes a central segment disposed between the first and second chambers and communicating with the first and second airways. When activated, the fan causes ambient air to pass through the first and second airways before entering the central segment so that the first and second doors are cooled off by the ambient air.Type: ApplicationFiled: September 12, 2008Publication date: March 18, 2010Inventors: James ARMSTRONG, Philip Ames Barber, Jay Andrew Broniak, Steve B. Froelicher, Kevin Scott Laundroche, Michael Paul McGonagle, Derek Lee Watkins
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Publication number: 20100051244Abstract: A fan apparency arrangement for an appliance is disclosed. The appliance has a chamber with a first port and a second port. The arrangement includes a fan for moving air in or out of the chamber, and a sail switch disposed adjacent to the second port. When activated, the fan moves air in or out of the chamber through the first port to create a pressure difference between an inside and an outside of the chamber. The pressure difference causes the sail switch to change position and signal that the fan is activated. An appliance incorporating such a fan apparency arrangement is also disclosed.Type: ApplicationFiled: August 26, 2008Publication date: March 4, 2010Inventors: James ARMSTRONG, Christopher MAST, Derek Lee WATKINS, Justin T. BROWN
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Patent number: 7621158Abstract: A coupling apparatus includes an inner shaft rotatably driven about a longitudinal axis of rotation, an outer shaft concentric with the inner shaft for selective rotation about the longitudinal axis, a coupling element movable between a first position engaging the inner shaft to the outer shaft for rotation therewith, and a second position disengaging the inner shaft from the outer shaft for relative rotation therebetween, and an actuating element connected to the coupling element and operable to move the coupling element between the first position and the second position.Type: GrantFiled: June 22, 2004Date of Patent: November 24, 2009Assignee: General Electric CompanyInventors: Jon Arthur Roepke, Joshua Paul Kopecky, Derek Lee Watkins, Mark Aaron Weaver, Christopher Gregory Hoppe, Bertram Joseph Stocker, Jr.
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Publication number: 20090238255Abstract: A decision feedback-based communication system comprising a unit for computing an estimated Error Propagation Probability (EPP) for a plurality of received signals, and a unit for receiving the EPP estimation and improving detected signal quality based thereon. The system can be a coded system or an uncoded system.Type: ApplicationFiled: March 24, 2008Publication date: September 24, 2009Applicant: Hong Kong Applied Science and Technology Research Institute Co, Ltd.Inventors: Chan Wing Chau, Zhao Xueyuan, Pan Zhengang, Lo Chi Ming, Derek Lee
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Patent number: 7536880Abstract: A magnetic lid switch assembly includes a first magnetically actuated electrical switch that has a lever arm movable between a first position wherein the first switch is open and a second position wherein the first switch is closed. A second magnetically actuated electrical switch electrically is connected in series with the first switch. The second switch has a lever arm movable between a first position wherein the second switch is open and a second position wherein the second switch is closed. A first actuator is magnetically coupled to the first switch. The first actuator moves the lever arm of the first switch closing the first switch to enable the first switch to pass an electric current when the first actuator is positioned proximate the first switch. A second actuator is magnetically coupled to the second switch.Type: GrantFiled: May 18, 2004Date of Patent: May 26, 2009Assignee: General Electric CompanyInventors: Errin Whitney Gnadinger, Kristian Michael Magnuson, Thomas William McConihay, John Jacob Lapina, Jr., Derek Lee Watkins
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Publication number: 20090115776Abstract: Embodiments of the invention provide a method of managing content filters within a three dimensional (3D) immersive environment without compromising the visual and interactive integrity of the environment itself. In one embodiment, content may be selectively filtered by dynamically categorizing content within the immersive environment by tracking baseline avatar patterns. Once a pattern is identified between a given content element (i.e., some element of the environment which an avatar may interact with) and avatar interactions (or lack of interactions) with that content element, a filter may be defined and applied to that content element.Type: ApplicationFiled: November 7, 2007Publication date: May 7, 2009Inventors: Surinder S. Bimbra, Derek Lee Bromenshenkel, Zachary Adam Garbow, Daniel Leonard Hiebert
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Publication number: 20080251887Abstract: A serial system and method for blowing antifuses are disclosed. One embodiment of antifuse system includes a plurality of latch devices connected in series from input to output. The system also includes a plurality of antifuses. The antifuses are configured to receive an output signal from a corresponding one of the latch devices. The plurality of latch devices includes a plurality of D flip-flops connected in series. Each of the D flip-flops is configured to receive an output signal from an immediately previous D flip-flop in the serial data flow and to provide an output signal to an immediately subsequent D flip-flop in the flow. In addition, the serial system provides self-detective antifuses, thus creating reliable electrical paths while saving antifuse blowing current resources and time.Type: ApplicationFiled: April 11, 2007Publication date: October 16, 2008Applicant: Micron Technology, Inc.Inventor: Derek Lee
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Publication number: 20080194712Abstract: Methane is reacted with steam, to generate carbon monoxide and hydrogen in a first catalytic reactor (14); the resulting gas mixture can then be used to perform Fisher-Tropsch synthesis in a second catalytic reactor (26). In performing the steam/methane reforming, the gas mixture is passed through a narrow channel in which the mean temperature and exit temperature are both in the ranges 750° C. to 900° C. the residence time being less than 0.5 second, and the channel containing a catalyst, so that only those reactions that have comparatively rapid kinetics will occur. The heat is provided by combustion of methane in adjacent channels (17). The ratio of steam to methane should preferably be 1.4 to 1.6, for example about 1.5. Almost all the methane will undergo the reforming reaction, almost entirely forming carbon monoxide. After performing Fischer-Tropsch synthesis, the remaining hydrogen is preferably fed back (34) to the combustion channels (17).Type: ApplicationFiled: April 14, 2008Publication date: August 14, 2008Inventors: Michael Joseph Bowe, Clive Derek Lee-Tuffnell, Jason Andrew Maude, John William Stairmand, Ian Frederick Zimmerman
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Publication number: 20080193347Abstract: A compact catalytic reactor for Fischer-Tropsch synthesis defines a multiplicity of first and second flow channels arranged alternately in the reactor, for carrying a gas mixture which undergoes Fischer-Tropsch synthesis, and a coolant fluid, respectively. Each first flow channel contains a removable gas-permeable catalyst structure incorporating a metal substrate. A multiplicity of flow paths are defined through the catalyst structure, and the voidage, that is to say the proportion of the cross-sectional area of the first flow channel constituted by the said multiplicity of flow paths, is between 25% and 70%. This provides an optimum balance between productivity and selectivity, so that operation of the reactor can be economic and controllable.Type: ApplicationFiled: January 18, 2006Publication date: August 14, 2008Inventor: Clive Derek Lee-Tuffnell
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Publication number: 20080168631Abstract: A plastic fastener retention clip for pre-assembly attachment and sealing for appliance liners and components without the need of tape. The clip attachment aperture includes an integral wall or barrier that eliminates the need for a secondary taped surface. An interference fit of the retention area ensures proper installation and provides a seal between the liner and the clip. The retention seal and the integral attachment aperture barrier prevent foam from passing through the pre-pierced liner openings during the foaming process. A secondary mechanical fastener may pierce the barrier to attach various appliance components (i.e. shelf brackets, light housings, etc.) to the appliance liner.Type: ApplicationFiled: January 17, 2007Publication date: July 17, 2008Inventor: Derek Lee Cushman
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Publication number: 20080149562Abstract: Systems and methods for injecting a fluid into a system are disclosed. The systems include a capillary tube having an inlet and an exit. The capillary tube being configured to release the fluid from a bladder when there exists a pressure difference between the inlet of the capillary tube and the exit of the capillary tube. The pressure difference being caused by a redirection attachment. The methods include causing a pressure differential within a first container. The pressure differential applies pressure to a bladder forcing the fluid to flow from the bladder through a capillary tube.Type: ApplicationFiled: December 20, 2006Publication date: June 26, 2008Inventors: Ronald Scott Tarr, Timothy Worthington, Derek Lee Watkins
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Publication number: 20080128355Abstract: A method of delivering filtered water includes exerting a first pressure against a first side of a diaphragm. A second pressure is exerted, with the filtered water, against a second side of the diaphragm. The second pressure is eliminated on the second side of the diaphragm such that the filtered water flows away from the diaphragm at the first pressure exerted against the first side of the diaphragm.Type: ApplicationFiled: November 30, 2006Publication date: June 5, 2008Inventors: Derek Lee Watkins, Timothy Dale Worthington, Ronald Scott Tarr
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Patent number: 7254969Abstract: A basket for a washing machine includes a body comprising an outer wall and at least one rib extending radially inward from said wall, said rib comprising at least a first portion having a first cross section and a second portion having a second cross section, said second cross section different from said first cross section.Type: GrantFiled: August 29, 2002Date of Patent: August 14, 2007Assignee: General Electric CompanyInventors: Larry Hawkins, Derek Lee Watkins, Ronald Miles Johnson
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Patent number: 7246395Abstract: A control panel for a laundry appliance includes a cycle type section comprising a reconfigurable display, and a cycle parameter section graphically illustrating selected laundry cycle parameters.Type: GrantFiled: December 9, 2002Date of Patent: July 24, 2007Assignee: General Electric CompanyInventors: James David Buckroyd, Derek Lee Watkins, William Henry Lueckenbach
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Patent number: 7217741Abstract: Fischer-Tropsch synthesis is performed using a compact catalytic reactor unit (10) defining channels in which is a gas-permeable catalyst structure (16), the channels extending between headers (18). The synthesis occurs in at least two stages, as the reactor unit provides at least two successive channels (14, 14a) for the Fischer-Tropsch synthesis connected by a header, the gas flow velocity through the first channel being sufficiently high that no more than 65% of the carbon monoxide undergoes conversion. The gases are cooled (25) in the header between the two stages, so as to condense water vapor, and then pass through the second channel at a sufficiently high gas flow velocity that no more than 65% of the remaining carbon monoxide undergoes conversion. This lowers the partial pressure of water vapor and so suppresses oxidation of the catalyst.Type: GrantFiled: November 27, 2003Date of Patent: May 15, 2007Assignee: Compactgtl PLCInventors: Michael Joseph Bowe, Clive Derek Lee-Tuffnell
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Patent number: 7201883Abstract: A catalytic reactor comprises a plurality of sheets defining flow channels between them. Within each flow channel is a foil of corrugated material whose surfaces are coated with catalytic material. Flow channels for a first gas extend in oblique directions relative to the flow channels for a second gas. The reactor incorporates header chambers to supply gas mixtures to the flow channels, the headers communicating with adjacent channels being separate. The reactor enables different gas mixtures to be supplied to adjacent channels, which may be at different pressures, and the corresponding chemical reactions are also different. Where one of the reactions is endothermic while the other reaction is exothermic, heat is transferred through the sheets separating the endothermic reaction. When the catalyst in one set of flow channels becomes spent, it can be replaced by removing a header.Type: GrantFiled: September 12, 2002Date of Patent: April 10, 2007Assignee: Compactgtl PLCInventors: Michael Joseph Bowe, Clive Derek Lee-Tuffnell
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Patent number: 7087651Abstract: Methane is reacted with steam, to generate carbon monoxide and hydrogen in a first catalytic reactor; the resulting gas mixture can then be used to perform Fischer-Tropsch synthesis in a second catalytic reactor. In performing the steam/methane reforming, the gas mixture is passed through a narrow flow channel containing a catalyst structure on a metal substrate, and adjacent to a source of heat, in a time less than 0.5 s, so that only those reactions that have comparatively rapid kinetics will occur. Both the average temperature and the exit temperature of the channel are in the range 750° to 900° C. The ratio of steam to methane should preferably be 1.4 to 1.6, for example about 1.5. Almost all the methane will undergo the reforming reaction, almost entirely forming carbon monoxide. After performing Fischer-Tropsch synthesis, the remaining hydrogen is preferably used to provide heat for the reforming reaction.Type: GrantFiled: December 2, 2002Date of Patent: August 8, 2006Assignee: GTL Microsystems AGInventors: Clive Derek Lee-Tuffnell, Ian Frederick Zimmerman, Michael Joseph Bowe, Jason Andrew Maude
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Publication number: 20050278869Abstract: A coupling apparatus includes an inner shaft rotatably driven about a longitudinal axis of rotation, an outer shaft concentric with the inner shaft for selective rotation about the longitudinal axis, a coupling element movable between a first position engaging the inner shaft to the outer shaft for rotation therewith, and a second position disengaging the inner shaft from the outer shaft for relative rotation therebetween, and an actuating element connected to the coupling element and operable to move the coupling element between the first position and the second position.Type: ApplicationFiled: June 22, 2004Publication date: December 22, 2005Inventors: Jon Arthur Roepke, Joshua Paul Kopecky, Derek Lee Watkins, Mark Aaron Weaver, Christopher Gregory Hoppe, Bertram Joseph Stocker
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Publication number: 20040107510Abstract: A control panel for a laundry appliance includes a cycle type section comprising a reconfigurable display, and a cycle parameter section graphically illustrating selected laundry cycle parameters.Type: ApplicationFiled: December 9, 2002Publication date: June 10, 2004Applicant: GENERAL ELECTRIC COMPANYInventors: James David Buckroyd, Derek Lee Watkins, William Henry Lueckenbach
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Publication number: 20040040346Abstract: A basket for a washing machine includes a body comprising an outer wall and at least one rib extending radially inward from said wall, said rib comprising at least a first portion having a first cross section and a second portion having a second cross section, said second cross section different from said first cross section.Type: ApplicationFiled: August 29, 2002Publication date: March 4, 2004Applicant: General Electric CompanyInventors: Larry Hawkins, Derek Lee Watkins, Ronald Miles Johnson