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| Number | Title | Issue Date |
| H2263 | Hardening of a satellite thermal control system A thermal control system for a space body uses an active control means to prevent laser beam radiation damage to a heat radiator. A conventional louver and louver actuator are coupled to an active overdrive actuator that closes the louver when hostile laser radiatio... | 09/06/2011 |
| 5001217 | Crosslinkable rigid-rod benzobisazole polymer There are provided crosslinkable, para-ordered aromatic heterocyclic polymers having repeating groups of the following formula ##STR1## wherein Y is --O--, --S--, or --NH--, n is 1 or 2, and R is an alkyl group having 1 to 4 carbon atoms. In polymers... | 03/19/1991 |
| 5000859 | Process for sodium sulfide/ferrous sulfate treatment of hexavalent chromium and other heavy metals A process for treating industrial waste water containing hexavalent chromium (Cr.sup.+6) and other heavy metals is disclosed which comprises reduction of Cr.sup.+6 to trivalent chromium (Cr.sup.+3) and the precipitation thereof with other heavy metals by ... | 03/19/1991 |
| 4905247 | High power tunable infrared mirrorless laser The invention comprises a mirrorless iodine laser having an elongated sealed iodine cell for both receiving and emitting laser energy. A pumping laser is used for projecting a laser beam into the sealed cell along its long axis in order to excite the iodi... | 02/27/1990 |
| 4895490 | Internal blade retention system for rotary engines The invention comprises an internal blade retention system for rotary engines and particularly for gas turbine engines. The system comprises a rotary disk 12 positioned for rotation within the turbine engine, the disk having a multitude of dovetail blade ... | 01/23/1990 |
| 4871854 | Cure catalyst for polyurethanes Described herein is an improved cure catalyst, ferric-bis(acetylacetonato)oxinate, for urethane polymers derived form polyetherdiols and thiols, polybutadienediols and triols, polyesters and the like.... | 10/03/1989 |
| 4871712 | Decyloxy-substituted terephthalic acid compounds and method of synthesis Provided are dialkyloxy-substituted terephthalic acids of the formula ##STR1## wherein R is an alkyl group having about 8 to 12 carbon atoms. Also provided is a method for preparing these dialkyloxy-substituted terephthalic acids.... | 10/03/1989 |
| 4871427 | Ion detection using a differential resistance measurement of an ion exchange membrane An electrochemical differential resistance measurement arrangement usable for detecting low concentration ionic impurities such as chemical warfare agents in liquids such as water. The disclosure includes details of electrochemical cells used in the liqui... | 10/03/1989 |
| 4871770 | Method of inhibiting the activity of peroxidases and stimulating tumor growth A composition and process for suppressing the immune system of animals in which an effective amount of 3-aminotyrosine is administered which suppresses the endogeneous immune system of animals. In addition endogeneous peroxidase activity is inhibited and ... | 10/03/1989 |
| 4870002 | Method of prevention of oxidative injury to cells A process for preventing oxidative injury in which living cells are contacted with a protective amount of 3-amino-tyrosine or a derivative thereof. Also provided is a process for preserving a cell sample involving collecting a sample of cells and adding 3... | 09/26/1989 |
| 4869446 | Cockpit atmosphere protection system A system for protecting the cockpit of an aircraft from airborne contamination is described which comprises a generally tubular curtain of size corresponding to that of the canopy and cockpit and being pleated and collapsible along its length between an e... | 09/26/1989 |
| 4869469 | System for making centrifugally cooling metal powders System and method for producing metal or alloy powder are described which comprises a housing defining a cylindrical chamber having an inlet and an outlet and a plurality of passageways in the form of fluid nozzles defined through the housing wall along a... | 09/26/1989 |
| 4866942 | Augmentor curtain liner for equalizing pressure therein An improved circumferential segmented augmentor liner assembly anchored to a cylindrical case of a jet engine includes a plurality of liner anchor members affixed to the cylindrical case at circumferentially spaced inside portions thereof, each member hav... | 09/19/1989 |
| 4864828 | Aircraft engine combustion liner cooling apparatus Aircraft engine cooling apparatus having a plurality of cooling gas inlet nozzles, producing first streams of cooling gas moving in a forward direction, a plurality of first direction reversal members for splitting the first streams into second and third ... | 09/12/1989 |
| 4865450 | Dual photoelastic modulator heterodyne interferometer A heterodyne type interferometer utilizing two optically aligned photoelac modulators driven at the same frequency and in phase quadrature.... | 09/12/1989 |
| 4864575 | Static periodic field device for free electron laser A static periodic field device for a free electron laser has a plurality of holes therethrough to allow the interaction of electrons flowing therethrough to interact with either an electric or a magnetic fields as desired. The device is composed of a plur... | 09/05/1989 |
| 4863220 | Highly reliable method of rapidly generating pressure pulses for demolition of rock Providing a fluid pressure pulse generator having a fluid inlet chamber communicating with an accumulator via a movable ball positioned within the inlet chamber, a narrow fluid passageway bypassing the ball, an outlet chamber coupled to a valve seat for p... | 09/05/1989 |
| 4860216 | Communication adaptive multi-sensor system A multi-sensor system adaptively utilizes communications or data bus facilities for multi-sensor signal fusion. For each source of sensor signals, a local signal processor compares each signal against a pre-determined set of hypotheses, and generates a ra... | 08/22/1989 |
| 4860015 | Delay line null command generator test set for sarcalm A null command generator test apparatus capable of operating in either the open or closed loop configuration for testing the Sarcalm system. When operating in an open loop configuration the null command generator test apparatus utilizes the normalized vol... | 08/22/1989 |
| 4858264 | Ultrasonic assisted protective coating removal A paint or other protective coating removal arrangement involving the use of reciprocal motion ultrasonic frequency mechanical energy applied to the coating by a variety of tool and abrasive substrate members in the company of surface preparation agents s... | 08/22/1989 |
| 4860318 | PSK detection using an IFM receiver The apparatus detects the presence of long or short pulse phase shift keyed (PSK) modulated signals and determines the underlying clock frequency and modulation code associated with such signal, in real time, using an instantaneous frequency measurement (... | 08/22/1989 |
| 4857973 | Silicon waveguide with monolithically integrated Schottky barrier photodetector The invention comprises a Schottky barrier type infrared photodetector which is monolithically integrated on a silicon waveguide. A Schottky barrier contact is positioned directly on a silicon waveguide to absorb grazing incidence optical signals passing ... | 08/15/1989 |
| 4856884 | Dynamically matched optical filtering in a multiple telescope imaging system A dynamically matched optical filter is formed within a multiple telescope optical imaging system. Entrance and exit pupil geometries, the phases and tilts of multiple imaging paths and system alignments are sensed and controlled to allow wide field of vi... | 08/15/1989 |
| 4858238 | Stimulated Raman scattering enhancer Normal stimulated Raman scattering (SRS) is done in a gas cell with pump and Stokes seed input beams. The pump photons excite gas molecules in the gas cell from their ground state and the Stokes seed photons stimulate the de-excitation of the molecules ba... | 08/15/1989 |
| 4855749 | Opto-electronic vivaldi transceiver A planar integrated opto-electronic transceiver apparatus having a pair of broadband tapered slot line antennas which are monolithically integrated on an ion implanted silicon on sapphire substrate. An optical pulse which is applied to the narrow slot of ... | 08/08/1989 |
| 4855508 | Energetic diethers and process for their preparation The invention comprises a novel preparation of energetically substituted diether compounds and novel diether compounds not previously reported. In one embodiment certain isomeric forms of dibromoalkanes are converted to corresponding isomers of bromoalkyl... | 08/08/1989 |
| 4854122 | Augmentor curtain liner assembly for sharing tensile loading An improved circumferential segmented augmentor liner assembly anchored to a cylindrical case of a jet engine includes a plurality of liner anchor members affixed to the cylindrical case at circumferentially spaced inside portions thereof, each member hav... | 08/08/1989 |
| 4854190 | Continuously variable gear drive transmission The invention comprises an all gear mechanism for a continuously variable transmission that provides a wide range of output speeds and torques. The Basic element of the transmission is a floating gear assembly which relates output speed to input speed. Th... | 08/08/1989 |
| 4853163 | Method of controlling discharge of stored electric charge in plastic objects and forming Lichtenberg figures in plastic objects A method of preventing the spontaneous discharge of charged dielectric objects such that the surface of the objects are polished smooth to remove down to microscopic surface faults thereon. A maximum charge is storable therein having only loss by corona l... | 08/01/1989 |
| 4852347 | Advanced composite polar boss Composite polar bosses applied in rocket motor cases have very desirable characteristics. The lead time for a boss can be reduced from 6-12 months to 4-6 months. Weight savings for the boss/nozzle assembly are about 20-40 percent. A composite polar boss w... | 08/01/1989 |
| 4852452 | Defense to laser light irradiation A satellite defends itself by having a plurality of corner cube retroreflectors with shutters, each having a laser light sensor. It is assumed that the attacker first must obtain positional and range information with a pulsed laser. When one of the sensor... | 08/01/1989 |
| 4851847 | Method for eliminating self-screening noise jamming in radar systems A method for eliminating self-screening noise jamming from the main beam of a radar in order to reveal the skin echoes of aircraft at the same angle, including the aircraft carrying the jammer by using a main antenna and an auxiliary antenna located a sho... | 07/25/1989 |
| 4851193 | High temperature aluminum-base alloy An improved alloy consisting essentially of about 6 to 10 weight percent Fe, about 2 to 10 weight percent Gd, balance Al. The alloy may also contain minor amounts of one or more refractory metals.... | 07/25/1989 |
| 4851055 | Method of making titanium alloy articles having distinct microstructural regions corresponding to high creep and fatigue resistance A method for producing an integral titanium alloy article having at least two regions, each region having a distinct microstructure is provided. The method comprises heat treating one or more selected region(s) of the article at a temperature greater than... | 07/25/1989 |
| 4851053 | Method to produce dispersion strengthened titanium alloy articles with high creep resistance A method to produce titanium alloy articles having high creep resistance which comprises the steps of: (a) providing a titanium alloy material containing at least one dispersoid forming alloy addition: (b) hydrogenating the alloy material to a level of about 0... | 07/25/1989 |
| 4851355 | Hydrocarbon group-type analyzer system A method of analysis by high performance liquid chromatography is provided for obtaining an analysis of three components, namely acyclic paraffins, cycloparaffins and unsaturates, present in a liquid hydrocarbon mixture. The method comprises introducing a... | 07/25/1989 |
| 4849719 | Low loss electro-optic modulator mount The crystal is solid CdTe or GaAs for modulating a laser beam. The mount comprises Al2 O3 or BeO ceramic between the crystal and a U-shaped aluminum housing on three sides to provide low stray capacitance and high thermal conductivit... | 07/18/1989 |
| 4846552 | Method of fabricating high efficiency binary planar optical elements The high diffraction efficiency regime of binary gratings occurs at periodicities on the order of a wavelength in order to produce grating which diffract radiation with efficiencies of greater than 90%, a fabrication procedure is disclosed which uses halo... | 07/11/1989 |
| 4845645 | Sequential rapid communication visual displays The rapid communication (RAP-COM) microprocessor controlled memory display system and method operates by presenting real-time data in rapid temporal succession at one spatial location. It can be embodied as a stand-alone instrument or as a small display w... | 07/04/1989 |
| 4845286 | Acetylene terminated aromatic amide monomers Provided is an acetylene-terminated aromatic amide compound of the formula ##STR1## wherein X is --O-- or --S--, Z is --O--, --S--, --SO2 --, or --CO--, and R is --H or --C.tbd.CH in the ortho, meta or para position, wherein at least one R... | 07/04/1989 |
