Patents by Inventor David B. O'Neill
David B. O'Neill 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: 8966917Abstract: A coolant reservoir includes a body portion defining an interior cavity configured to hold a coolant; and a barrier wall positioned within the body portion to partition the interior cavity into an upper chamber and a lower chamber, the barrier wall defining an opening therethrough that allows fluid communication between the lower chamber and the upper chamber.Type: GrantFiled: October 19, 2010Date of Patent: March 3, 2015Assignee: GM Global Technology Operations LLCInventors: David B. O'Rourke, Christopher C. Nyeholt
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Publication number: 20120090348Abstract: A coolant reservoir includes a body portion defining an interior cavity configured to hold a coolant; and a barrier wall positioned within the body portion to partition the interior cavity into an upper chamber and a lower chamber, the barrier wall defining an opening therethrough that allows fluid communication between the lower chamber and the upper chamber.Type: ApplicationFiled: October 19, 2010Publication date: April 19, 2012Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: DAVID B. O'ROURKE, CHRISTOPHER C. NYEHOLT
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Publication number: 20040221777Abstract: A furnace (10) includes a series of lower compartments (18) extending in a vertical arrangement, with at least one of the lower compartments (18) having one or more fuel nozzles (20) which tangentially fires fuel into the combustion chamber at an offset from a diagonal (DD) passing through opposed corners of the combustion chamber. At least one of the lower compartments (18) has one or more air nozzles (22) which tangentially introduces air into the combustion chamber along an offset direction which is offset from the diagonal (DD) to the same side as the fuel firing offset direction. The tangentially fired air and the offset fired fuel create a swirling fireball (RB) in the combustion chamber.Type: ApplicationFiled: May 9, 2003Publication date: November 11, 2004Applicant: ALSTOM (Switzerland) LtdInventors: Douglas J. Hart, Robert D. Lewis, Charles Q. Maney, Michael S. McCartney, David B. O'Neill, Galen H. Richards
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Patent number: 6442231Abstract: The invention is an improved energy dispersive x-ray spectrometer comprising x-ray source (10), sample (12), optics (20) and detector (16). The improvement comprises the use of optics using the principle of total external reflection for delivering an increased flux of x-rays onto the detector. These flux concentrating optics are generally shaped as tubes having a figure of revolution as a longitudinal cross section such as a cone, parabola, hyperbola, ellipsoid and others. These optics may also be used as low energy pass filters by incorporating a stop (22) at or near the aperture of the optic. The reflecting surface of the flux concentrator optic may be selected from the group of metals and their alloys, the choice made to optimize the optic's performance.Type: GrantFiled: February 10, 2000Date of Patent: August 27, 2002Inventor: David B. O'Hara
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Patent number: 5768339Abstract: The invention claimed is a collimator for x-rays and the fabrication process for said collimator. The collimator, in its preferred embodiment, displays the general shape of a tube, having two apertures, an entrance aperture and an exit aperture. The walls of the collimator tube are not parallel to each other but rather are paraboloidal in longitudinal section. The geometry of the collimator tube is, therefore, circular in transverse cross-section and paraboloidal in longitudinal section, thereby resulting in a tube whose entrance aperture is of a smaller diameter than its exit aperture. The collimator geometry described is referred to herein as a tubular paraboloid.Type: GrantFiled: February 11, 1997Date of Patent: June 16, 1998Inventor: David B. O'Hara
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Patent number: 5682415Abstract: The invention claimed is a collimator for x-rays and the fabrication process for said collimator. The collimator, in its preferred embodiment, displays the general shape of a tube, having two apertures, an entrance aperture and an exit aperture. The walls of the collimator tube are not parallel to each other but rather are paraboloidal in longitudinal section. The geometry of the collimator tube is, therefore, circular in transverse cross-section and paraboloidal in longitudinal section, thereby resulting in a tube whose entrance aperture is of a smaller diameter than its exit aperture. The collimator geometry described is referred to herein as a tubular paraboloid.Type: GrantFiled: October 13, 1995Date of Patent: October 28, 1997Inventor: David B. O'Hara
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Patent number: 5312697Abstract: A nickel-base alloy suitable for overlaying steel substrates. The alloy and steel have similar thermal conductivities and thermal coefficients of expansion. The alloy broadly initially contains about 15-20% molybdenum, about 5-10% chromium, up to about 2% iron, up to about 5% tungsten and/or niobium, up to about 0.1% carbon, and the balance essentially nickel.Type: GrantFiled: April 24, 1992Date of Patent: May 17, 1994Assignee: Inco Alloys International, Inc.Inventors: Samuel D. Kiser, Melissa A. Moore, David B. O'Donnell
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Patent number: 5304346Abstract: The invention provides a welding material for welding iron containing low CTE alloys. The filler metal contains 25-55% nickel, 0-30% cobalt, 0.05-0.5% carbon, 0.25-5% niobium and balance iron with incidental impurities. The welding material also is operable with fluxes for submerged arc welding. In addition, the welding material may be configured to function as a flux coated or flux-cored electrode.Type: GrantFiled: October 23, 1992Date of Patent: April 19, 1994Assignee: INCO Alloys International, Inc.Inventors: David B. O'Donnell, Robert A. Bishel
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Patent number: 5225675Abstract: The invention provides a method of improving cleaning operations for metals. A fluorescent dye is introduced into metal treatment solution and the surface of a metal product is treated with the treatment solution. The metal product with the treatment solution on its surface is worked to deform the metal product. The treatment solution is removed from the surface of the metal product to clean the metal product. The cleaned metal product is illuminated with excitation energy capable of stimulating fluorescence in the fluorescent dye. Fluorescence of the fluorescent dye is optically monitored to determine effectiveness of the removing step.Type: GrantFiled: January 22, 1992Date of Patent: July 6, 1993Assignee: Inco Alloys International, Inc.Inventor: David B. O'Donnell
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Patent number: 5217545Abstract: A material for electric heater element sheathing, which has good weldability, is oxidation- and corrosion-resistant, and forms an eye-pleasing dark gray or black surface oxide, consists essentially of, by weight, from about 8.75-15.5% nickel, about 19.5-21.0% chromium, about 0.30-0.50 manganese, about 0.50-2.0% silicon, about 0.25-0.60% aluminum, about 0.25-1.0% titanium, up to about 0.05% carbon, up to about 0.005% sulfur, up to about 0.75% copper, up to about 1.0% cobalt, up to about 1.0% molybdenum, up to about 0.02% phosphorus, about 0.001-0.015% calcium plus magnesium and remainder essentially iron, wherein the Ferrite Number is between 1 and 15.Type: GrantFiled: May 27, 1992Date of Patent: June 8, 1993Assignee: Inco Alloys International, Inc.Inventors: Gaylord D. Smith, Walter H. Wendler, David B. O'Donnell
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Patent number: 5171968Abstract: The invention provides a welding electrode useful for reducing nitrogen porosity in a weld. A metallic base having 1.5 to 6 weight percent titanium, balance essentially nickel is used. The resulting deposit has less than 0.5 weight percent titanium to ensure close match of tolerances. A flux is used in combination with the metallic base to control arc behavior, atmosphere content and slag characteristics.Type: GrantFiled: September 30, 1991Date of Patent: December 15, 1992Assignee: Inco Alloys International, Inc.Inventors: Thomas O. Bates, Robert A. Bishel, David B. O'Donnell
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Patent number: 5160382Abstract: A material for electric heater element sheathing, which has good weldability, is oxidation- and corrosion-resistant, and forms an eye-pleasing dark gray or black surface oxide, consists essentially of, by weight, from about 8.75-15.5% nickel, about 19.5-21.0% chromium, about 0.30-0.50 manganese, about 0.50-2.0% silicon, about 0.25-0.60% aluminum, about 0.25-1.0% titanium, up to about 0.05% carbon, up to about 0.005% sulfur, up to about 0.75% copper, up to about 1.0% cobalt, up to about 1.0% molybdenum, up to about 0.02% phosphorus, about 0.001-0.015% calcium plus magnesium and remainder essentially iron, wherein the Ferrite Number is between 3 and 15.Type: GrantFiled: January 17, 1992Date of Patent: November 3, 1992Assignee: Inco Alloys International, Inc.Inventors: Gaylord D. Smith, Walter H. Wendler, David B. O'Donnell
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Patent number: 5124530Abstract: The invention provides a coated electrode suitable for welding stainless steel. The coated electrode uses a stainless steel core wire. The flux contains by weight percent a total of 0 to 14.5 alkali metal and aluminum fluoride, about 0.5 to 12.5 cerium fluoride, a total of about 10 to 30 alkali metal and manganese carbonate, about 2 to 25 cerium oxide plus zirconium, about 0 to 25 chromium, about 0 to 10 manganese, about 5 to 15 total metal fluorides, and balance rutile. A binder holds the flux to the stainless steel core.Type: GrantFiled: February 5, 1991Date of Patent: June 23, 1992Assignee: Inco Alloys International, Inc.Inventors: David B. O'Donnell, Robert A. Bishel
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Patent number: 5034770Abstract: An apparatus and method which provides job integrity and security for each sheet transported to and from a printing station including periods when a printing machine has cycled down enabling an operator to remove sheets therefrom. Each sheet transported to the printing station and each sheet delivered from the printing station is counted. A controller compares the number of sheets transported to the printing station to the number of sheets delivered from the printing station and the number of any sheets that may have been removed by the operator from the printing machine as a result of a cycle down. Operation of the printing machine will be inhibited if the number of sheets transported to the printing station do not equal the number of sheets delivered from the printing station and the number of sheets removed by the operator.Type: GrantFiled: August 30, 1990Date of Patent: July 23, 1991Assignee: Xerox CorporationInventor: David B. O'Connell
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Patent number: 4520356Abstract: A video generation logic for a display controller includes a precoded PROM which combines visual attributes associated with the characters of information to be displayed on the display screen to produce multiple video control signals for modifying the dot pattern generation signal which is generated in response to character information stored in a refresh memory of the display controller. Visual attribute signals are used as an address to a video attribute generation PROM to retrieve a precoded data word associated with a particular combination of video attributes and the information contained in the retrieved data word is used to provide video control signals. Some of the video control signals are combined with the dot pattern generation signal to provide a video signal which is transmitted to the display monitor which displays the character information.Type: GrantFiled: August 20, 1982Date of Patent: May 28, 1985Assignee: Honeywell Information Systems Inc.Inventors: David B. O'Keefe, Robert C. Miller
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Patent number: 4433376Abstract: A logic system is provided for accommodating the exchange of information between two or more communication busses of a data processing system, wherein plural central processing units and plural memory units on independent communication busses may have same logic addresses. Memory and CPU addresses are translated at the bus rate through a multiplicity of flexible address translation ranges to enable a data processing unit on one communication bus to access an apparent contiguous range of addresses encompassing all data processing units on all communication busses.Type: GrantFiled: December 15, 1980Date of Patent: February 21, 1984Assignee: Honeywell Information Systems Inc.Inventors: Ralph M. Lombardo, Jr., John J. Bradley, Kenneth E. Bruce, John W. Conway, David B. O'Keefe, Bruce H. Tarbox
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Patent number: 4375638Abstract: A refresh memory address generation apparatus for a video display controller is disclosed wherein rows of character information stored in a display refresh memory may be relocated without requiring the reconstruction of the display information as stored in the display refresh memory. A roll register and PROMs precoded to perform modular addition and multiplication are used to generate an address used to access the display controller refresh memory such that all but one stationary row of information on the display screen may be scrolled (rolled) up. The scrolling of the information on the display screen is accomplished without requiring movement of the display information in the refresh memory, and the only rewrite of information in the refresh memory is done to blank the one row of information which is vacated.Type: GrantFiled: June 16, 1980Date of Patent: March 1, 1983Assignee: Honeywell Information Systems Inc.Inventors: David B. O'Keefe, Robert C. Miller
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Patent number: 4375036Abstract: A strobe generator in a data entry input device is responsive to an input strobe signal from a keyboard system to generate a strobe signal which is not affected by electrical noise produced by electrostatically or electromagnetically induced signals in the signal lines running between the keyboard system and the data entry device input logic. An accurate output strobe signal is generated by utilizing a retriggerable logic circuit to filter out noise signals of a duration shorter than a predetermined period. The predetermined period is chosen to be less than the minimum duration of a valid input strobe signal and greater than the duration of active noise signals. The strobe generator retains the output strobe signal in the active state by use of a flip-flop until the strobe generator receives a reset signal acknowledging that the output strobe signal has been sampled by the data entry device input logic.Type: GrantFiled: June 9, 1980Date of Patent: February 22, 1983Assignee: Honeywell Information Systems Inc.Inventors: Robert C. Miller, David B. O'Keefe
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Patent number: 4338597Abstract: A data processing system remote monitor interface includes a first device which transmits different types of time-related information signals along multiple parallel channels to a second device for reception and combination into a different number of information signal outputs. The different types of digital information signals are synchronized by the first device prior to transmission to the second device. Components in the first device, the multiple parallel channels, and the second device are selected to maintain signal synchronization by minimizing signal skew thereby eliminating the necessity for signal resynchronization in the second device. The second device includes a receiver section which has a plurality of receivers. Each receiver operates to receive only one digital information signal and to pass the received signal onto its output.Type: GrantFiled: March 6, 1980Date of Patent: July 6, 1982Assignee: Honeywell Information Systems Inc.Inventors: Gordon L. Steiner, David B. O'Keefe, Robert C. Miller
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Patent number: 4320465Abstract: Digital data is recorded on the surface of a magnetic media such as a disk or diskette in the form of magnetic flux transitions identifying clock and data information in either a frequency modulation (FM) mode or a modified frequency modulation (MFM) mode. A read head senses the flux transitions which are in turn converted to digital signals. Apparatus converts the time between successive digital signals into PROM addresses. The PROM address locations store coded signals identifying the data as binary ONE or binary ZERO signals.Type: GrantFiled: May 14, 1979Date of Patent: March 16, 1982Assignee: Honeywell Information Systems Inc.Inventors: Donald J. Rathbun, David B. O'Keefe