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| Number | Title | Issue Date |
| 5916703 | Energy storage cell with hydrogen vent A nickel-hydrogen energy storage cell includes a hermetic pressure vessel having a wall made of a nickel-base alloy, and a hollow tube made at least in part of palladium and joined to the wall of the pressure vessel such that an interior of the hollow tub... | 06/29/1999 |
| 5885906 | Low PIM reflector material A mesh material for a spacecraft antenna reflector is disclosed. The mesh material has a base material made from a dielectric fabric. A conductive material, such as nickel, is applied to the dielectric mesh. The type and thickness of the conductive materi... | 03/23/1999 |
| 5794892 | Critical nutation dampling on spinning bodies via momentum wheels or similar devices A method and system of damping nutation of a spacecraft (20) having a desired spin axis along a first principal inertia axis utilizes a momentum source (28) oriented along a second principal inertia axis perpendicular to the first principal inertia axis. ... | 08/18/1998 |
| 5765784 | System and method for deploying multiple probes Systems (10, 10a) and a methods (40) that employ a spin-stabilized spacecraft (12) in combination with a support and deployment module (14) to carry a plurality of probes (16) containing scientific instruments that are to enter a planet's atmosphere and/o... | 06/16/1998 |
| 5748057 | Photonic bandgap crystal frequency multiplexers and a pulse blanking filter for use therewith Frequency multiplexers that incorporate either a power divider network or a power coupling cavity in conjunction with photonic bandgap filters. The frequency multiplexers comprise a signal input and a plurality of signal outputs. In a first embodiment of ... | 05/05/1998 |
| 5584892 | Process for producing nickel electrode having lightweight substrate A nickel electrode having a lightweight porous nickel substrate is subjected to a formation cycle involving heavy overcharging and under-discharging in a KOH electrolyte having a concentration of 26% to 31%, resulting in electrodes displaying high active ... | 12/17/1996 |
| 5563609 | Antenna system with plural beam sequential offset An array antenna system (40) has a plurality of radiators (44) for generating a set of beams (48), wherein axes of the beams are spaced apart from each other allowing the respective beams to illuminate separate areas of the earth or other receiving region... | 10/08/1996 |
| 5557285 | Gimbal control system A multi-loop control system for a gimballed antenna that employs devices for measuring both absolute line-of-sight (an autotrack receiver or beacon tracker) and relative angular position (a resolver). The control system uses both signals simultaneously, t... | 09/17/1996 |
| 5554411 | Treatment of solid electrolytes to promote wettability A beta-double prime aluminum oxide solid electrolyte (24) is prepared for wetting by a liquid electrode material. The method includes mechanically rubbing an asperity-filling metal against the surface (32) of the solid electrolyte (24) until the solid ele... | 09/10/1996 |
| 5542254 | Cryogenic cooler An improved cryogenic cooler 100 includes a flange 106 with an elongated pressure vessel 120 extending therefrom. The pressure vessel 120 is connected to the flange 106 at a proximal end thereof. The pressure vessel 120 is adapted to cool a surface in the... | 08/06/1996 |
| 5541607 | Polar digital beamforming method and system A system and method for polar digital beamforming of at least one independent transmit beam is disclosed. A computer generates a digital signal representing both pointing and modulation information which is communicated to a plurality of subarray controll... | 07/30/1996 |
| 5517418 | Spacecraft disturbance compensation using feedforward control A feedforward disturbance compensation system and method for use with a spacecraft that compensates for predictable disturbances exerted on the spacecraft. The invention comprises a model of the disturbance that is to be compensated, means for knowing whe... | 05/14/1996 |
| 5508206 | Method of fabrication of thin semiconductor device Thin semiconductor devices, such as thin solar cells, and a method of fabricating same are disclosed. A microblasting procedure is employed to thin a semiconductor wafer or substrate, such as a solar cell wafer, wherein fine abrasive particles are used to... | 04/16/1996 |
| 5500604 | Radial tensioning lamination fixture for membrane test probe A membrane test probe (10) for use in testing integrated circuit chips (50) has a thin flexible membrane (30) bearing test contacts (40,42) that is stretched across an opening of a rigid-flex substrate (12). The membrane is manufactured with uniform radia... | 03/19/1996 |
| 5499656 | Integrated storage and transfer system and method for spacecraft propulsion systems A system, a portable propellant loading tank and loading method for bipropellant spacecraft servicing to load propellant into a spacecraft. The spacecraft has a propellant storage tank with a propellant input and a vent output. The system comprises a port... | 03/19/1996 |
| 5492543 | Preparation of electrodes and Ni/MHx electrochemical storage cell An electrode (40) for a Ni/MHx storage cell (47) is prepared by providing a substrate (62) and providing an active material in a finely divided form. A paste (60) of a mixture of the active material, optionally a finely divided carbon powder, and a soluti... | 02/20/1996 |
| 5488282 | System and method for reconditioning spacecraft battery A battery reconditioning system and method for a spacecraft which utilizes a single battery as a secondary source of power for spacecraft electrical loads (10). The battery (14) includes a plurality of serially connected packs (30-36) each including a plu... | 01/30/1996 |
| 5477107 | Linear-beam cavity circuits with non-resonant RF loss slabs Lossy slabs are provided in linear-beam tubes such as coupled-cavity TWTs and klystrons to produce a more level tube response over its full operating band, and to eliminate oscillations at the upper cut-off frequency in the TWTs. The slab thicknesses are ... | 12/19/1995 |
| 5473601 | Frequency reuse technique for a high data rate satellite communication system Frequency reuse and data coding methods for use in a high data rate satellite communication system. The frequency reuse method provides for dual polarization and spatial reuse of transmit and receive beams to provide for a twelve-fold increase in the effe... | 12/05/1995 |
| 5469519 | Optical waveguide image transmission system and method An improved image transmission system which includes an elongate optical waveguide 15 having an input aperture 17 and an output aperture 19. Optical apparatus 11, 13 is provided for injecting a transform of an image into the waveguide. In a specific imple... | 11/21/1995 |
| 5468155 | Connector accessory for shield termination An accessory for shield termination of a shielded cable having a shielding braid surrounding a plurality of insulated conductors coupled to a connector includes a generally L-shaped bracket having a generally U-shaped portion with integrally formed first ... | 11/21/1995 |
| 5461326 | Self leveling and self tensioning membrane test probe A test probe including a flexible membrane (12) having an array of test probe contacts (14) capable of softly and gently contacting pads on a device under test is provided with a structure that effectively applies tension to the membrane while at the same... | 10/24/1995 |
| 5460659 | Concentrating photovoltaic module and fabrication method A solar cell assembly is fabricated by adapting efficient microelectronics assembly techniques to the construction of an array of small scale solar cells. Each cell is mounted on an individual carrier, which is a conventional integrated circuit (IC) packa... | 10/24/1995 |
| 5445889 | Low-temperature curing resin system A resin system includes 100 parts by weight of an epoxy resin, from about 1/2 to about 10 parts by weight of an imidazole curing agent, and, optionally, an elastomeric material such as a rubber. The resin system without the elastomer is particularly usefu... | 08/29/1995 |
| 5436568 | Pivotable self-centering elastomer pressure-wafer probe A test probe for testing an integrated circuit formed on an integrated circuit die. The probe comprises a printed circuit board interface having an opening in its center. A flexible membrane is formed on a bottom surface of the printed circuit board inter... | 07/25/1995 |
| 5435733 | Connector assembly for microelectronic multi-chip-module A Multi-Chip-Module or MCM (66) is mounted on a supporting motherboard (64). A plurality of first contact pads (99) are formed on the module (66) adjacent to its peripheral edge for interconnection with microelectronic components (70,72,74,76,78) mounted ... | 07/25/1995 |
| 5434022 | Electrodes and electrochemical storage cells utilizing tin-modified active materials An electrode has a substrate and a finely divided active material on the substrate. The active material is ANix-y-z Coy Snz, wherein A is a mischmetal or La1-w Mw, M is Ce, Nd, or Zr, w is from about ... | 07/18/1995 |
| 5428322 | Microwave waveguide multiplexer A right angle waveguide junction for a microwave multiplexer is provided including a step in one of the waveguides for improved electrical response. A rectangular waveguide manifold (10) is coupled to a filter (12) which includes a coupling iris (14) and ... | 06/27/1995 |
| 5425816 | Electrical feedthrough structure and fabrication method In an electrical via structure and fabrication method that is particularly suited to coplanar contact solar cells, an initial opening (38,48a,48b,64) through the substrate is coated and substantially closed with a dielectric material (42,52,80). An inner ... | 06/20/1995 |
| 5421530 | Cord retractor mechanism A mechanism for releasably retracting and storing a length of electrical cord (96,98,100,102,104) is formed of first and second pairs of cord pulleys (60,62,82,84) mounted at opposite ends of an elongated retractor frame (18). An intermediate section of a... | 06/06/1995 |
| 5414919 | Apparatus for removing metallized leads bonded to metallized bond pads Lead wires extending out from an electrical circuit device are removed from respective bonding pads to which they are bonded by a lateral shearing action. Shearing can be accomplished either unidirectionally, or with a bidirectional reciprocating movement... | 05/16/1995 |
| 5412866 | Method of making a cast elastomer/membrane test probe assembly A flexible membrane (12) of an integrated circuit chip test probe is provided with raised contact features (14) on one side arranged in the pattern of contact pads of the chip to be tested. During manufacture, the membrane, in the area of its raised conta... | 05/09/1995 |
| 5412539 | Multichip module with a mandrel-produced interconnecting decal An inexpensive arrangement for mounting multiple, closely spaced integrated circuit chips (18, 20, 22, 24) on a low temperature co-fired ceramic (LTCC) substrate (10) uses a mandrel-produced thin film decal (26) having patterns of interconnecting conducti... | 05/02/1995 |
| 5405270 | Electrical connector assembly with jackscrew coupling An electrical connector assembly includes two connector blocks that are coupled together by means of a jackscrew on one block that is screwed into a receiver on the other block. The jackscrew and receiver are formed from metal, while the remainder of the ... | 04/11/1995 |
| 5397366 | Glass sealing of electrochemical storage cell structures An electrochemical storage cell (20) includes ceramic housing frame (22) with a flat plate solid ceramic electrolyte (32) bonded to a internal shoulder (26) of the housing frame (22) with a glassy seal (33). A metallic weld ring (34) is bonded to each end... | 03/14/1995 |
| 5395253 | Membrane connector with stretch induced micro scrub A membrane connector or test probe having a group of connector or test probe contacts (14) in a central contact section of the membrane (12) is initially stretched by being axially displaced from the plane of the peripheral membrane support (10). The test... | 03/07/1995 |
| 5389575 | Self-aligned contact diffusion barrier method A method of forming a contact diffusion barrier in a thin geometry integrated circuit device involves implanting a second material into a low resistivity material that overlies the semiconductor to which contact is desired. The low resistivity and implant... | 02/14/1995 |
| 5389460 | Vibration-resistant battery having individually supported storage cells A battery (20) includes a battery container (22), a base (30) attached to the interior of the wall (24) of the battery container (22), a compliant first weld ring (32) extending to a first side of the base (30), and a compliant second weld ring (34) exten... | 02/14/1995 |
| 5386339 | Monolithic microelectronic circuit package including low-temperature-cofired-ceramic (LTCC) tape dielectric structure and in-situ heat sink A dielectric structure (12) includes a plurality of stacked sheets (16) of low thermal conductivity, low-temperature-cofired-ceramic (LTCC) tape formed with a hole (18) therethrough. A heat sink (20) includes a plurality of stacked sheets (22) of high the... | 01/31/1995 |
| 5386085 | Multilayer electrical circuit structure including partially embedded pins for external connection An electrically conductive stripline (16) is formed on a thermally fusible sheet (10), with a portion (16a) of the stripline (16) extending adjacent to an edge (10a) of the sheet (10). A cavity (18) is formed in another thermally fusible sheet (12) having... | 01/31/1995 |
