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公开(公告)号：US3761713A
公开(公告)日：1973-09-25
申请号：US3761713D
申请日：1971-07-13
Applicant: US INTERIOR
Inventor： MERRILL R
CPC classification number: G01V9/005
Abstract: A method of detecting loose rock in excavated passages through subterranean structures by an analysis of thermal conditions at the surfaces of said passages measured with infrared responsive instruments.
Abstract translation: 通过使用红外响应仪器测量的所述通道的表面处的热条件的分析来检测通过地下结构的挖掘通道中的松散岩石的方法。
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公开(公告)号：US3761622A
公开(公告)日：1973-09-25
申请号：US3761622D
申请日：1970-11-23
Applicant: US INTERIOR
Inventor： STUCKLEN R
CPC classification number: H02H1/0084 , H04M11/002
Abstract: Power system phase and frequency are telemetered by amplitude modulating a carrier wave. In the modulating process a sinusoidal input is shaped to a square waveform and filtered through a bandpass filter. The filter output is a high frequency carrier wave ringing at the input frequency. For demodulation, the carrier wave is rectified and filtered through a low-pass filter, resulting in an approximately sinusoidal signal at the input frequency. After conversion to a sawtooth wave, the signal synchronizes an electronic telephone ringer, generating an output signal at station service voltage and frequency.
Abstract translation: 电力系统相位和频率通过幅度调制载波进行遥测。 在调制过程中，正弦输入被成形为方波，并通过带通滤波器滤波。 滤波器输出是在输入频率下振荡的高频载波。 对于解调，载波通过低通滤波器整流和滤波，导致输入频率处的近似正弦信号。 在转换成锯齿波之后，该信号使电子电话铃声同步，产生站服务电压和频率的输出信号。
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公开(公告)号：US3760868A
公开(公告)日：1973-09-25
申请号：US3760868D
申请日：1971-01-28
Applicant: US INTERIOR
Inventor： CYWIN A
Abstract: An urban domestic water distribution system and its associated ground mass is used as a heat sink for waste heat produced by industrial processes. A domestic water stream is utilized as cooling water for waste heat-producing processes and is thereafter introduced into the distribution system.
Abstract translation: 城市生活用水分配系统及其相关的地面质量被用作工业过程产生的废热的散热器。 家用水流被用作废热产生过程的冷却水，然后被引入分配系统。
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公开(公告)号：US3755106A
公开(公告)日：1973-08-28
申请号：US3755106D
申请日：1972-05-15
Applicant: US INTERIOR
Inventor： SCHEINER B , LINDSTROM R , HENRIE T
CPC classification number: C25B1/00
Abstract: Sb2S3 is converted to Sb205 by electrolysis of a slurry of sulphide in an aqueous solution containing alkali metal chloride, alkali metal bromide, or a mixture of the two.
Abstract translation: 通过在含有碱金属氯化物，碱金属溴化物或两者的混合物的水溶液中电解硫化物浆料，将Sb 2 S 3转化为Sb 2 O 5。
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公开(公告)号：US3733187A
公开(公告)日：1973-05-15
申请号：US3733187D
申请日：1971-06-07
Applicant: US INTERIOR
Inventor： FELDMANN H
CPC classification number: C10L3/00 , C07C1/00 , C07C1/0485 , C07C9/04
Abstract: SOLID WASTES ARE HEATED TO 500*C.-675*C. AT 10003000 P.S.I.G. IN PRESENCE OF GAS CONTAINING AT LEAST 90 MOLE PERCENT HYDROGEN TO CONVERT SAID WASTES TO A METHANEAND ETHANE-CONTAINING GAS HAVING NO CONDENSABLE OILS AND TARS. THE CARBONACEOUS RESIDUE IS ALSO FREE OF TARS AND OILS,
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Patent Agency Ranking26.发明授权
公开(公告)号：US3730959A
公开(公告)日：1973-05-01
申请号：US3730959D
申请日：1971-07-08
Applicant: US INTERIOR
CPC classification number: B01D63/024 , B01D63/022 , Y10S264/44
Abstract: The formation of high pressure seals for water equilibrated, hollow fiber membranes is effected by injecting a solution of gelatin around the active membrane area, chilling the solution to solidify the gelatin and immobilize the water, washing the ends or inactive area of the membrane with warm water, drying the ends, and casting a seal on the solidified gelatin surface. The gelatin is removed by heating and washing the fibers.
Abstract translation: 通过在活性膜区域周围注入明胶溶液，冷却溶液固化明胶并固定水，用温和洗涤膜的末端或非活性区域来实现水平衡的中空纤维膜的高压密封的形成 水，干燥端部，并在凝固的明胶表面上浇注密封。 通过加热和洗涤纤维除去明胶。
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公开(公告)号：US3728671A
公开(公告)日：1973-04-17
申请号：US3728671D
申请日：1970-04-30
Applicant: US INTERIOR
Inventor： POSTON A
CPC classification number: G01V1/157
Abstract: Concentric electrode pairs of opposite polarity improve the efficiency of a spark-gap acoustic source for marine seismic profiling. One electrode of a pair is tubular; the other is rodlike and positioned axially within the tubular electrode. Among the benefits resulting from the concentric electrode configuration are constant output, directional control, high frequency, efficiency, and a high repetition rate.
Abstract translation: 具有相反极性的同心电极对提高了用于海洋地震剖面的火花隙声源的效率。 一对电极是管状的; 另一个是棒状的并且轴向地定位在管状电极内。 由同心电极配置产生的优点是恒定输出，方向控制，高频率，高效率和高重复率。
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公开(公告)号：US3716615A
公开(公告)日：1973-02-13
申请号：US3716615D
申请日：1971-08-24
Applicant: US INTERIOR
Inventor： LINDSTROM R , BAUER D , HASKETT P
CPC classification number: C01G3/02 , C01P2006/80
Abstract: Cu2O is precipitated from a copper chelate solution by the addition of alkaline material and a reductant. The stability constant of the chelate must be more than 5.
Abstract translation: 通过加入碱性物质和还原剂，从铜螯合物溶液中沉淀出Cu2O。 螯合物的稳定常数必须大于5。
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公开(公告)号：US3700591A
公开(公告)日：1972-10-24
申请号：US3700591D
申请日：1970-09-24
Applicant: US INTERIOR
Inventor： HIGLEY WILLARD S
CPC classification number: B01D65/02 , B01D61/10 , B01D2321/162 , B01D2321/28
Abstract: A METHOD FOR CLEANING AND REJUVENATING A USED REVERSE OSMOSIS MEMBRANCE BY TREATING THE MEMBRANE IN SITU WITH A SOLUTION OF OXALIC ACID. NOT ONLY ARE DELETERIOUS DEPOSITS REMOVED FROM THE MEMBRANE, BUT THE ORGINAL OSMOTIC PROOPERTIES OF THE MEMBRANE MAY BE PARTIALLY RESTORED. THE MEMBRANE PROPERTIES MAY BE FURTHER IMPROVED BY A SUBSEQUENT TREATMENT WITH A SWELLING AGENT OR A HOT WATER SOLUTION.
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公开(公告)号：US3666444A
公开(公告)日：1972-05-30
申请号：US3666444D
申请日：1968-12-05
Applicant: US INTERIOR
Inventor： WONG MORTON M
CPC classification number: C22B35/00
Abstract: A METHOD OF ELECTROWINNING BERYLLIUM FROM A FUSED SALT ELECTROLYTE CONTAINING BERYLLIUM FLUORIDE COMPRISING ELECTROLYZING AT A TEMPERATURE BELOW THE MELTING POINT OF THE BERYLLIUM, FOLLOWED BY HEATING A MIXTURE OF THE FUSED SALT AND BERYLLIUM METAL TO A TEMPERATURE ABOVE THE MELTING POINT OF BERYLLIUM TO COALESCE THE BERYLLIUM. THE BERYLLIUM METAL FINDS UTILITY IN A VARIETY OF APPLICATIONS WHERE HIGH MELTING TEMPERATURE, LIGHT WEIGHT, HIGH STRENGTH, GOOD THERMAL CONDUCTIVITY, LOW THERMAL NEUTRON ABSORPTION CORSS SECTION, AND HIGH SCATTERING CROSS SECTION ARE REQUIRED, E.G., IN SPACE VEHICLES AND NUCLEAR REACTORS.
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