Patents Assigned to Litton System, Inc.
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Patent number: 6709298Abstract: A socket connector for a pin connector including a module body with a plurality of slots is described. A plurality of wafers are installable in a corresponding plurality of slots in the module body and each wafer has multiple offset tuning forks. The module body has a coring wall with multiple wedge shaped protrusions for each of the offset tuning forks of the wafer.Type: GrantFiled: April 3, 2002Date of Patent: March 23, 2004Assignee: Litton Systems, Inc.Inventor: Robert M. Bradley
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Publication number: 20040040439Abstract: An oxygen concentrator system includes at least one oxygen concentrator sub-system and a plenum subsystem. The at least one oxygen concentrator sub-system produces oxygen-enriched air which is outputted to both the oxygen concentrator system output and to a plenum chamber within the plenum subsystem. The plenum chamber is trickle charged with the oxygen-enriched air when the at least one oxygen concentrator sub-system produces an excess amount of oxygen-enriched air. Should the demand for oxygen-enriched air exceed the capability of the at least one oxygen concentrator sub-system, additional oxygen-enriched air is provided by the plenum chamber until such time that the capability of the at least one oxygen concentrator sub-system exceeds the demand for oxygen-enriched air. At that time, oxygen-enriched air is no longer provided by the plenum chamber but rather the plenum chamber is again trickle charged.Type: ApplicationFiled: August 27, 2002Publication date: March 4, 2004Applicant: Litton Systems, Inc.Inventors: Tuan Q. Cao, Gary Byrd, Lyle Berkenbosch, Craig Schledewitz
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Publication number: 20040040437Abstract: An oxygen concentrator system with altitude compensation includes at least one oxygen concentrator sub-system and a plenum subsystem. The at least one oxygen concentrator sub-system produces oxygen-enriched air which is outputted to both the oxygen concentrator system output and to a plenum chamber within the plenum subsystem. The plenum chamber is trickle charged with the oxygen-enriched air when the at least one oxygen concentrator sub-system produces an excess amount of oxygen-enriched air. Should the demand for oxygen-enriched air exceed the capability of the at least one oxygen concentrator sub-system, additional oxygen-enriched air is provided by the plenum chamber until such time that the capability of the at least one oxygen concentrator sub-system exceeds the demand for oxygen-enriched air. At that time, oxygen-enriched air is no longer provided by the plenum chamber, but rather the plenum chamber is again trickle charged.Type: ApplicationFiled: August 27, 2002Publication date: March 4, 2004Applicant: Litton Systems, Inc.Inventors: Tuan Q. Cao, Gary Byrd
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Publication number: 20040032193Abstract: A microchannel plate (P) for receiving photoelectrons includes a plate-like substrate web (W) formed from a plurality of micro-tubules (10) of a single type of cladding glass (12) and defining a pair of opposite faces (14a and 14b). The substrate web (W) further includes a plurality of microchannel passages (16) extending between the opposite faces (14a and 14b) and having openings (18a and 18b, respectively) in both of the opposite faces (14a and 14b). The microchannel openings (18) have funnel-like entries or openings (20) formed in the substrate web (W) with at least one of the opposite faces (14).Type: ApplicationFiled: August 16, 2002Publication date: February 19, 2004Applicant: Litton Systems, Inc.Inventors: Carlos J. Batista, Michael J. Iosue
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Patent number: 6692209Abstract: A system (10) for manufacturing a photocathode includes a housing (12) having a first end and a second end. The first end of the housing (12) is operable to be coupled to a vacuum chamber (22). The system (10) also includes a drive support (20) disposed within the housing (12). The system (10) includes a shaft (14) disposed within the housing (12) and a ladder (16) coupled to the shaft (14). The ladder (16) includes at least one rung (140) to retain the photocathode. The system (10) further includes a drive system (18) supported by the drive support (20) within the housing (12). The drive system (18) is coupled to the shaft (14) and is operable to translate the shaft (14) relative to the housing (12) to position the rung (140) of the ladder (16) at a predetermined location within the vacuum chamber (22).Type: GrantFiled: November 19, 1999Date of Patent: February 17, 2004Assignee: Litton Systems, Inc.Inventors: James D. Pruet, David G. Couch
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Patent number: 6690012Abstract: A hybridized Lead-Salt infrared radiation detector includes a focal plane having a substrate and a sensitized, delineated Lead-Salt layer upon the substrate, the delineations forming a plurality of sections in a two-dimensional array. The detector also includes electrical contacts for each of the sections and a common grid between the sections. The detector further includes a layer of conductive barrier material on each electrical contact, a layer of passivating material on each section, and a layer of fusible conductive material on each layer of conductive barrier material.Type: GrantFiled: October 11, 2001Date of Patent: February 10, 2004Assignee: Litton Systems, Inc.Inventors: Niels F. Jacksen, Jeffrey G. Tibbitt, Michael A. Sepulveda
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Patent number: 6690098Abstract: The present invention comprises a method for gating a power supply. A gating command terminal is capacitively coupled to an on/off switch. A gating command signal is provided at the gating command terminal. The gating command signal is operable to activate the on/off switch. An off signal is generated at an output terminal of the on/off switch in response to an off state of the on/off switch being activated. An on signal is generated at the output terminal in response to an on state of the on/off switch being activated.Type: GrantFiled: January 31, 2000Date of Patent: February 10, 2004Assignee: Litton Systems, Inc.Inventor: Michael R. Saldana
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Publication number: 20040018377Abstract: A porous ceramic substrate structure (10) having an interior portion (12) formed with an outer surface (14) is porous to at least one selected gas (16). A first ceramic coating layer (18) is applied to the outer surface (14) of the ceramic substrate structure (10) in a suspension state. The first ceramic coating suspension (20) has a desired level of viscosity for application to the substrate and is formed with a ceramic electrolyte powder and at least one organic additive. A second ceramic coating layer (22) is applied to the outer surface (14) following application of the first coating (18). The second coating (22) is initially applied after the first coating (18) and in a suspension state. The ceramic layers (18 and 22) substantially prevent gas leakage through the outer surface (14).Type: ApplicationFiled: July 29, 2002Publication date: January 29, 2004Applicant: Litton Systems, Inc.Inventors: Zhonglin Wu, Scott R. Sehlin
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Publication number: 20040018776Abstract: An electrical connector having a laminate structure and multiple parallel grooves is described. The laminate structure is electrically conductive and is coated with an electrically non-conductive material. Each groove has a signal carrying path which is advantageously surrounded by the laminate structure, thereby forming a type of Faraday cage around the signal carrying path and creating a completely shielded electrical path.Type: ApplicationFiled: July 24, 2002Publication date: January 29, 2004Applicant: Litton Systems, Inc.Inventors: Kenny Padro, Robert D. Godburn, William Keller
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Patent number: 6681807Abstract: A method and apparatus for receiving a flow of fluid and restricting the flow through a device are described. The apparatus includes an insert having a shaped surface including at least one through-hole located off-center. The shaped surface may be a bell-shaped curve in cross-section. The method includes supplying a flow of fluid to one side of the apparatus, redirecting a portion of the flow of the fluid onto itself, and directing the flow to the at least one through-hole.Type: GrantFiled: July 15, 2002Date of Patent: January 27, 2004Assignee: Litton Systems, Inc.Inventor: Gary N. Byrd
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Publication number: 20040007277Abstract: A method and apparatus for receiving a flow of fluid and restricting the flow through a device are described. The apparatus includes an insert having a shaped surface including at least one through-hole located off-center. The shaped surface may be a bell-shaped curve in cross-section. The method includes supplying a flow of fluid to one side of the apparatus, redirecting a portion of the flow of the fluid onto itself, and directing the flow to the at least one through-hole.Type: ApplicationFiled: July 15, 2002Publication date: January 15, 2004Applicant: Litton Systems, Inc.Inventor: Gary N. Byrd
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Patent number: 6674062Abstract: A system (300) for gating a sensor (118) includes a detector (120) that detects light and outputs a signal (102) corresponding to the light. A control unit (334) receives the signal (106), and enables and disables a power supply (314) in response to the signal (106) to generate a gated power signal (316). The power supply (314) outputs the gated power signal (316) to a sensor (118) sensing the light.Type: GrantFiled: June 20, 2001Date of Patent: January 6, 2004Assignee: Litton Systems, Inc.Inventors: Timothy E. Ostromek, Joseph P. Estrera, Antonio V. Bacarella
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Publication number: 20040000351Abstract: A gas cylinder charging system includes (1) at least two gas inlet ports and (2) at least two gas outlet ports, (3) a gas compressor having an input port and an output port, where the input port selectively receives gas from a gas inlet port and selectively transfers the gas to a gas outlet port, and (4) a controller, receiving status signals and transmitting control signals, and connected to and controlling the gas compressor. A method aspect of filling a gas cylinder using the described cylinder charging system further including an input/output selector valve for selecting one of the gasses to transfer to the gas cylinder, includes the following steps. A gas cylinder is connected to one of the cylinder connectors. A user manipulates the selector valve selecting the gas to be transferred to the gas cylinder and activates the cylinder charging system filling the gas cylinder with the selected gas.Type: ApplicationFiled: June 28, 2002Publication date: January 1, 2004Applicant: Litton Systems, Inc.Inventors: Tuan Q. Cao, Steven D. Jinks
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Patent number: 6668004Abstract: A wedge-shaped microresonator is provided that can be mounted proximate one or more wedge-shaped electro-optic components in order to construct a densely packed microlaser assembly. The wedge-shaped microresonator has first, second and third side surfaces. The wedge-shaped microresonator includes a passive Q-switch proximate the second side surface and an active gain medium proximate portions of the first and third side surfaces. The wedge-shaped microresonator also includes a reflective surface proximate each of the first, second and third side surfaces. At least one of the reflective surfaces is partially reflective, however, to then permit emission of laser signals. In addition to the wedge-shaped microresonator, a microlaser assembly is provided that also includes at least one wedge-shaped electro-optic component for receiving and modifying the laser pulses emitted by the wedge-shaped microresonator.Type: GrantFiled: August 10, 2001Date of Patent: December 23, 2003Assignee: Litton Systems, Inc.Inventor: Brian Lee Peterson
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Patent number: 6662668Abstract: The present invention is directed to a flow rate selector having a high flow position and a low flow position. The flow rate selector has a flow selector knob having a web. The web has a flat surface. At least two seals are mounted on the flat surface of the web. A retaining piece has two orifices of differing cross-sectional areas. The flow selector knob is rotatable relative to the retaining piece such that at least one seal can be aligned with either of the orifices to prevent fluid flow there through while allowing fluid flow through the other orifice. Cover 656 has conical outside diameter that seals against chamber in 654. This protects chamber 720 from foreign particles.Type: GrantFiled: September 26, 2001Date of Patent: December 16, 2003Assignee: Litton Systems, Inc.Inventors: Lyle Berkenbosch, Sammy K. Mickelson
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Patent number: 6660065Abstract: The present invention includes two beds of activated alumina or similar material, which can remove moisture during a PSA cycle. One bed is placed in series in each drive air line for the pressure intensifier or boost pump. The beds are sized such that there is sufficient material to adsorb the moisture contained in the volume of gas required to move the drive piston through a complete stroke.Type: GrantFiled: May 6, 2002Date of Patent: December 9, 2003Assignee: Litton Systems, Inc.Inventors: Gary N. Byrd, Timothy C. Phillis
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Patent number: 6651500Abstract: An integrated rate and accelerometer sensor includes two counter vibrating tuned accelerometers formed in a single substantially planar silicon body to form the sensing element. The two vibrating accelerometers are interleaved in a manner that places their respective centers of mass in the same line parallel to the direction of the vibration and has the centers of percussion of the two (pendulum) proof masses coincident. A phase insensitive quadrature nulling method is utilized for each of the two vibrating accelerometers. The sensor structure utilizes Pyrex for the top and bottom covers. Metalized electrodes, feedthrus and contact pads are also utilized for the sensing element, instead of interlayer wire bonds.Type: GrantFiled: October 3, 2001Date of Patent: November 25, 2003Assignee: Litton Systems, Inc.Inventors: Robert E. Stewart, Stanley F. Wyse
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Patent number: 6647785Abstract: A rotation sensing system includes a rotation sensor that produces a signal in response to an input rotation about a sensing axis. A servo system is arranged to rotate the rotation sensor at an angle about the sensing axis to null the signal from the rotation sensor such that the rotation sensor is substantially inertially stable. The rotation sensing system is mounted on a resolver arranged to measure the angle through which the servo system has rotated the rotation sensor.Type: GrantFiled: July 27, 2001Date of Patent: November 18, 2003Assignee: Litton Systems, Inc.Inventors: Robert E. Stewart, John T. Douglass, Stanley F. Wyse
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Patent number: 6650418Abstract: A pair of fiber optic coils are mounted on opposite sides of a flexural disk and are arranged to form an interferometer that produces an output signal in response to acceleration of the flexural disk. The flexural disk is mounted in a housing having first and second end plates with a sidewall extending between them. A support member extends between the end plates and through a central passage in the flexural disk. A pair of compressive dampers is mounted in the housing between the flexural disk and the housing end plates. A shear damper mounted on the central support member exerts a radial force on an inner edge of the central passage in flexural disk to dampen vibrations of the flexural member and control the output signal amplitude over a selected frequency range.Type: GrantFiled: July 27, 2001Date of Patent: November 18, 2003Assignee: Litton Systems, Inc.Inventors: Michael J. Tweedy, Eric L. Goldner, Patrick J. Welton, Gregory M. Nau, Bruce A Danver
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Patent number: 6634207Abstract: The invention is a method and apparatus for improving the accuracy of an inertial navigation system. The method comprises (1) obtaining a measure of the angular velocity of a body frame of reference having a first axis, a second axis, and a third axis, (2) obtaining a measure of the acceleration of a first reference point in the direction of the first axis, a second reference point in the direction of the second axis, and a third reference point in the direction of the third axis, the first, second, and third reference points being fixed in the body frame, and (3) determining compensated acceleration values. A compensated acceleration value is the difference of the measure of acceleration of a reference point and a compensation quantity. A compensation quantity is an estimate of the portion of the acceleration of the reference point resulting from the rotation of the body frame. The method further comprises establishing the optimum navigation center based on a criterion of goodness.Type: GrantFiled: October 10, 2000Date of Patent: October 21, 2003Assignee: Litton Systems, Inc.Inventors: Brian T. Lottman, Daniel A. Tazartes