Paul M. Sawko and Salvatore R. Riccitiello, inventors (to NASA) (NASA-Case-ARC-11042-1: US-Patent-4,061,579; N78-17149* National Aeronautics and Space Administration. Langley Research Center, Langley Station, Va. METHOD OF MAKING A COMPOSITE SANDWICH LATTICE STRUCTURE Patent Marvin D. Rhodes and Martin M. Mikulas, Jr., inventors (to NASA) Issued 20 Dec. 1977 11 p Filed 20 May 1977 Supersedes N77-26242 (1517, p 2233) Division of US Patent Appl. SN-723264, filed 14 Sep. 1976 (NASA-Case-LAR-11898-2; US-Patent-4,063.981; US-Patent-Appl-SN-799024; US-Patent-Class-156-245; 100 80 20 25 US-Patent-Class-106-15FP; US-Patent-Class-260-2.5N; US-Patent-Class-260-2.5R; US-Patent-Class-428-290; US-Patent-Class-428-71; US-Patent-Class-428-920; US-Patent-Class-428-73) Avail: US Patent Office CSCL 11D A honeycomb-laminate composite structure was comprised of: (1) a cellular core of a polyquinoxaline foam in a honeycomb structure, and (2) a layer of a noncombustible fibrous material impregnated with a polyimide resin laminated on the cellular core. A process for producing the honeycomb-laminate composite structure and articles containing the honeycomblaminate composite structure is described. Official Gazette of the U.S. Patent Office 4 N78-17150* National Aeronautics and Space Administration. Langley Research Center. Langley Station, Va. COMPOSITE LAMINATION METHOD Patent George E. Dickerson, inventor (to NASA) Issued 27 Dec. 1977 7 p Filed 28 Apr. 1977 Supersedes N77-22179 (15 13. p 1689) 3. 2. (NASA-Case-LAR-12019-1; US-Patent-4,065,340: US-Patent-Appl-SN-792067; US-Patent-Class-156-154; US-Patent-Class-156-264; US-Patent-Class-156-286; US-Patent-Class-156-289; US-Patent-Class-156-300: US-Patent-Class-156-306; US-Patent-Class-156-311; US-Patent-Class-264-90; US-Patent-Class-264-157; US-Patent-Class-428-294; US-Patent-Class-428-302. 11D A process was developed for preparing relatively thick composite laminate structure wherein thin layers of prepreg tapes N78-10225* National Aeronautics and Space Administration. Robert Bruce Jagow, inventor (to NASA) (LMSC, Sunnyvale, A wet oxidation process was developed for oxidizing waste materials, comprising dissolved ruthenium salt in a reactant feed stream containing the waste materials. The feed stream is introduced into a reactor, and the reactor contents are then raised to an elevated temperature to effect deposition of a catalytic surface of ruthenium black on the interior walls of the reactor. The feed stream is then maintained in the reactor for a period of time sufficient to effect at least partial oxidation of the waste materia.s. Official Gazette of the U.S. Patent Office 25 INORGANIC AND PHYSICAL CHEMISTRY Includes chemical analysis, e.g., chromatography: combustion theory: electrochemistry; and photochemistry. For related information see also 77 Thermodynamics and Statistical Physics. N78-10224* National Aeronautics and Space Administration. Lewis Research Center, Cleveland, Ohio. FUEL COMBUSTOR Patent Cecil J. Marek, inventor (to NASA) Issued 4 Oct. 1977 5 p Filed 31 Mar. 1976 Supersedes N76-20215 (1411, p 1358) (NASA-Case-LEW-12137-1: US-Patent-4,052,144; A fuel combustor comprises a chamber with air and fuel inlets and a combination gas outlet. The fuel is supplied to a vaporization zone and fuel and air are mixed in a pair of mixing chambers, each exemplified by a swirl can. The resultant mixture is directed into a combustion zone within the combustor. Heat pipes are arranged with one end portion substantially in the combustion zone and the other end in the vaporization zone of its appropriate mixing chamber. Some of the heat of combustion is thus carried back upstream into the swirl cans, to vaporize the fuel as it enters the vaporization zone in the swirl can, thereby improving vaporization and fuel mixing. Official Gazette of the U.S. Patent Office AP N78-11216*# National Aeronautics and Space Administration. Gel tray and lid assemblies designed for use in conjunction with slotted electrophoretic membranes were developed to take advantage of improved microelectrophoretic accessories, which include a multisample applicator capable of applying up to 10 samples consecutively or simultaneously, and a temperature control plate for dissipating the heat produced by electrophoresis in a gel. The trays and membranes can be marketed ready for use as electrophoretic media or impregnated with various specific substrates and dyes which can develop the electrophoretic patterns of up to 30 individual protein samples in up to 10 tray or membrane compartments. In addition to greatly simplifying and speeding up electrophoresis, these methods and equipment can contribute to the standardization of processes for clinical. forensic and anthropological diagnosis and identification. NASA Ames Research Center, Moffett Field, Calif. AUTOMATIC MULTIPLE-SAMPLE APPLICATOR AND Benjamin W. Grunbaum, inventor (to NASA) (Calif. Univ., Berkeley) 07D An apparatus for performing electrophoresis and a multiplesample applicator is described. Electrophoresis is a physical process in which electrically charged molecules and colloidal particles, upon the application of a dc current, migrate along a gel or a membrane that is wetted with an electrolyte. A multiple-sample applicator is provided which coacts with a novel tank cover to permit an operator either to depress a single button, thus causing multiple samples to be deposited on the gel or on the membrane simultaneously, or to depress one or more sample applicators separately by means of a separate button for each applicator. Official Gazette of the U.S. Patent Office N78-15210* National Aeronautics and Space Administration. Langley Research Center, Langley Station, Va. THERMOLUMINESCENT AEROSOL ANALYSIS Patent Robert S. Rogowski and Edward R. Long, Jr., inventors (to NASA) Issued 13 Dec. 1977 7 p Filed 29 Dec. 1976 Supersedes N77-17609 (1508, p 1058) (NASA-Case-LAR-12046-1; US-Patent-4,062,650; US-Patent-Appl-SN-755310; US-Patent-Class-23-232E; US-Patent-Class-23-232R; US-Patent-Class-23-230PC; US-Patent-Class-73-23) Avail: US Patent Office CSCL 07D A method for detecting and measuring trace amounts of aerosols when reacted with ozone in a gaseous environment was examined. A sample aerosol was exposed to a fixed ozone concentration for a fixed period of time, and a fluorescer was added to the exposed sample. The sample was heated in a 30 C/minute linear temperature profile to 200 C. The trace peak was measured and recorded as a function of the test aerosol and the recorded thermoluminescence trace peak of the fluorescer N78-17171*# National Aeronautics and Space Administration. Langley Research Center, Langley Station, Va. ELECTROCHEMICAL DATA SIGNAL PROCESS AND DISPLAY Patent Application Judd R. Wilkins and Richard N. Young, inventors (to NASA) Filed 30 Nov. 1977 11 p (NASA-Case-LAR-11922-1; US-Patent-Appl-SN-856460) Avail: NTIS HC A02/MF A01 CSCL 07D An electrochemical detection device for detecting microorganisms is described. A standard ph reference electrode and a platinum cathodic electrode are positioned in a countainer with suitable nutrient medium for microbial growth plus the sample to be tested. The two electrodes are connected to electronic circuitry including an up/down counter which counts up for the first 80 minutes after a test has been initiated Then the potential between the two electrodes is tracked by the electronic circuitry and after there is a change of 10 mv a signal is sent to the up/down counter to cause it to reverse its count. Thereafter, when there is an additional 20 mv change in the potential between the two electrodes another signal is sent to the up/down counter signalling it to stop. The resulting count on the counter is equal to the length of time for the inoculum to begin the production of measurable amounts of H2 after Inoculation. This length of time is indicative of a endpoint NASA 26 METALLIC MATERIALS Includes physical, chemical, and mechanical properties of metals, e.g., corrosion; and metallurgy. New heat and chemical resistant polymeric materials are prepared by the thermal condensation of diamidoxime monomers to yield larger molecules having 1, 2, 4-oxadiazole linkages. This process of direct intermolecular condensation of amidoxime groups is used for the synthesis of new fluorinated 1, 3, 4,-oxadiazole polymers. NASA N78-18182* National Aeronautics and Space Administration. Lewis Research Center, Cleveland, Ohio. TANTALUM MODIFIED FERRITIC IRON BASE ALLOYS Robert E. Oldrieve and Charles P. Blankenship, inventors (to Strong ferritic alloys of the Fe-CR-AI type containing 0.4% to 2% tantalum were developed. These alloys have improved fabricability without sacrificing high temperature strength and oxidation resistance in the 800 C (1475 F) to 1040 C (1900 F) range. Official Gazette of the U.S. Patent Office N78-18183* National Aeronautics and Space Administration. Lewis Research Center, Cleveland, Ohio. DIRECTIONALLY SOLIDIFIED EUTECTIC GAMMA-GAMMA NICKEL-BASE SUPERALLOYS Patent Melvin R. Jackson, inventor (to NASA) Issued 25 Oct. 1977 7 p Filed 7 May 1976 (NASA-Case-LEW-12905-1; US-Patent-4,055.447; A directionally solidified multivariant eutectic gamma-gamma prime nickel-base superalloy casting having improved high temperature properties was developed The alloy is comprised of a two phase eutectic structure consisting essentially of, on a weight percent basis, 6.0 9.0 aluminum, 5.0 17.0 tantalum, 0-10 cobalt, 0-6 vanadium, 0-6 rhenium, 2.0-6.0 tungsten, and the balance being nickel, subject to the proviso that the sum of the atomic percentages of aluminum plus tantalum is within the range of from 19-22, and the ratio of atomic percentages of tantalum to aluminum plus tantalum is within the range of from 0.12 0.23 Embedded within the gamma nickel-base matrix are aligned eutectic gamma prime phase (primarily nickelaluminum-tantalum) reinforcing fibers. Official Gazette of the U.S. Patent Office N78-11245*# National Aeronautics and Space Administration. Goddard Space Flight Center, Greenbelt, Md. ELECTRICALLY CONDUCTIVE THERMAL CONTROL COATINGS Patent Application Michael Charles Shai, inventor (to NASA) Filed 21 Oct. 1977 16 p (NASA-Case-GSC-12207-1; US-Patent-Appl-SN-844344) Avail: NTIS HC A02/MF A01 CSCL 11G A coating characterized by low thermal absorption, high thermal emittance and high electrical conductivity was developed. The paint composition or coating comprises a fired oxide pigment having a minor amount of aluminum oxide and a major amount of zinc oxide, an alkali metal silicate vehicle-binder, and sufficient water to provide a mixture suitable for application to a substrate. The fired oxide pigment may further include a minor amount of cobalt oxide. The resulting coating is particularly useful for coating the surfaces of spacecraft and similar objects. NASA N78-14164* National Aeronautics and Space Administration. Pasadena Office, Calif. DURABLE ANTISTATIC COATING FOR POLY METHYLMETHACRYLATE Patent Vaclav Hadek (JPL). Robert B. Somoano (JPL), and Alan (NASA-Case-NPO-13867-1; US-Patent-4,061,834; 11G Avail: US Patent Office CSCL A durable antistatic coating is achieved on polymethylmethacrylate plastic without affecting its optical clarity by applying to the surface of the plastic a low molecular weight solvent having a high electron affinity and a high dipole moment, such as acentonitrile or nitromethane alone or in the presence of photopolymerizable monomer. The treated polymethylmethacrylate plastic dissipates most of the induced electrostatic charge and retains its optical clarity. The antistatic behavior persists after washing, rubbing and vacuum treatment. Official Gazette of the U.S. Patent Office Langley Research Center, Langley Station, Va. Donald J. Progar, Vernon L. Bell, and Terry L. St Clair, inventors A process was developed for preparing aromatic polyamide acids for use as adhesives by reacting an aromatic dianhydride to an approximately equimolar amount of an aromatic diamine in a water or lower alkanol miscible ether solvent. The polyamide acids are converted to polyimides by heating to the temperature range of 200 300 C. The polyimides are thermally stable and insoluble in ethers and other organic solvents. Official Gazette of the U.S. Patent Office N78-17206* National Aeronautics and Space Administration. Langley Research Center, Langley Station, Va. THERMAL SHOCK AND EROSION RESISTANT TANTALUM CARBIDE CERAMIC MATERIAL Patent Leroy Honeycutt. III (N.C. State Univ., Raleigh) and Charles R. Manning, inventors (to NASA) (N.C. State Univ., Raleigh) Issued 10 Jan. 1978 4 p Filed 1 Apr. 1976 Supersedes N76-23436 (14-14, p 1783) Sponsored by NASA (NASA-Case-LAR-11902-1; US-Patent-4,067,742; Ceramic tantalum carbide artifacts with high thermal shock and mechanical erosion resistance are provided by incorporating tungsten-rhenium and carbon particles in a tantalum carbide matrix. The mix is sintered by hot pressing to form the ceramic article which has a high fracture strength relative to its elastic modulus and thus has an improved thermal shock and mechanical erosion resistance. The tantalum carbide is preferable less than minus 100 mesh, the carbon particles are preferable less than minus 100 mesh, and the tungsten-rhenium particles are preferable elongate, having a length to thickness ratio of at least 2/1. Tungsten-rhenium wire pieces are suitable as well as graphite particles. Official Gazette of US Patent Office N78-17213* National Aeronautics and Space Administration. John T. Howarth (Little. Arthur D, Cambridge, Mass.). Suresh A thermally stable, relatively conductive polymer was disclosed. The polymer was synthesized by condensing in the presence of catalyst a 2, 4, or 6 nuclear alklylated 2, 3, or 4 pyridine aldehyde or quaternary derivatives thereof to form a polymer. The pyridine groups were liked by olefinic groups between 2-4, 2-6, 2-3, 3-4, 3-6 or 4-6 positions. Conductive compositions were prepared by dissolving the quaternary polymer and an organic charge transfer complexing agent such as TCNQ in a mutual solvent such as methanol. Official Gazette of the U. S. Patent Office N78-17215* National Aeronautics and Space Administration. Pasadena Office, Calif. METHOD OF ADHERING BONE TO A RIGID SUBSTRATE USING A GRAPHITE FIBER REINFORCED BONE CEMENT Patent Albert C. Knoell (JPL) and Hugh G. Maxwell, inventors (to NASA) (JPL) Issued 27 Dec. 1977 5 p Filed 6 Apr. 1976 Supersedes N76-26281 (1417, p 2166) Sponsored by NASA (NASA-Case-NPO-13764-1; US-Patent-4,064,566; US-Patent-Appl-SN-674194; US-Patent-Class-3-1.9; US-Patent-Class-128-92C; US-Patent-Class-128-92G: US-Patent-Class-260-42.17) Avail: US Patent Office 11A CSCL US-Patent-Class-260-75NT, US-Patent-Class-260-77.5AM, US-Patent-Class-260-77.5AN, US-Patent-Class-260-77.5AP: 11E |