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公开(公告)号：US3929459A
公开(公告)日：1975-12-30
申请号：US45063674
申请日：1974-03-13
Applicant: US INTERIOR
Inventor： TRESS JACK E , HUNTER WILLARD L
CPC classification number: C21C5/527 , F27D3/18 , Y02P10/216
Abstract: A metallic charge is introduced into an electric furnace in a continuous fashion using as a feeding device an unobstructed tubular container of undulant or zig-zag shape. The feeding device is oriented horizontally and is rotated about its longitudinal axis causing the charge to advance through the container and discharge into the furnace through a roof port. The feeding device can handle a variety of material sizes and shapes, ranging from powder to shredded scrap, singly or in admixture, without modification. Hot furnace gases are vented through the feeding device thus cooling the gases and preheating the furnace charge.
Abstract translation: 金属电荷以连续方式引入电炉中，使用作为输送装置的无阻碍的起伏形状的管状容器或者之字形。 进料装置水平定向并围绕其纵向轴线旋转，使得装料通过容器前进并通过屋顶端口排入炉中。
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公开(公告)号：US3914993A
公开(公告)日：1975-10-28
申请号：US36968173
申请日：1973-06-25
Applicant: US INTERIOR
Inventor： BABCOCK CLARENCE O
CPC classification number: G01N3/08 , G01L1/2218
Abstract: Method and apparatus for stiffening the implementation of compression testing of a specimen. Following development of an initial non-setting strain in the specimen, by a compressive force acting thereon, the further compressive force applied in the testing is divided between the specimen and an arresting structure which then also becomes subject to such force. Strain in the arresting structure remains below the elastic limit therefor as increasing stress in the specimen effectuates its structural failure.
Abstract translation: 用于加固试样压缩试验的方法和装置。 在样品中初始的不凝固应变发展之后，通过作用在其上的压缩力，在试验中施加的另外的压缩力在试样和止动结构之间分开，然后其也受到这种作用。 阻力结构中的应变仍然低于弹性极限，因为样品中的应力增加导致其结构失效。
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公开(公告)号：US3912330A
公开(公告)日：1975-10-14
申请号：US44771674
申请日：1974-03-04
Applicant: US INTERIOR
Inventor： CARNAHAN THOMAS G , HEINEN HAROLD J
IPC: E21B43/28
CPC classification number: E21B43/28
Abstract: Copper porphyry ores, especially those too deeply buried for conventional open pit mining, are mined in place by an in situ leaching technique using as a leaching medium a mixture of dilute sulfuric acid, oxygen and nitrate ion added either as nitric acid or as an alkali metal or ammonium nitrate salt. The nitrate ion speeds dissolution of copper minerals, especially chalcopyrite, and the alkali metal or ammonium ion reacts with iron and sulfate in the leaching medium to deposit iron in the form of crystalline jarosites. Precipitation of iron within the ore body as a jarosite maintains the permeability of the ore body to the leaching medium thus increasing both the rate and the total recovery of copper as well as depleting the leach solution of unwanted iron.
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公开(公告)号：US3908977A
公开(公告)日：1975-09-30
申请号：US45766774
申请日：1974-04-03
Applicant: US INTERIOR
Inventor： ROEPKE WALLACE W , GRABOWSKI ALEXANDER I
CPC classification number: H01J37/18 , Y10T403/535
Abstract: A universal ultrahigh vacuum mounting fixture. The device is an expansion fitting specifically designed for ultrahigh vacuum (UHV) compatibility. A tapered plug has its front end inserted in a complementary shaped tapered hole in a sleeve. This sleeve has evenly spaced longitudinal slots that extend part of the way along and through the tapered surface. When in place, the sleeve extends through the wall of a vacuum chamber fitting into a vacuum flange mounting tube. A tightening bolt extends through the plug so that it may be turned from the rear of the plug pulling the plug into the sleeve to rigidly expand the sleeve inside the flange mounting rigidly fixing the plug and sleeve in the flange mounting tube. A variety of different types of mounting posts may be attached to the front end of the plug to protrude into the chamber and mount the device under observation. The complementary tapers of the plug and hole are usually different with the plug having a greater taper. Because of the ultrahigh vacuum environment of the chamber, it is essential that only ultrahigh vacuum compatible materials like 300 series stainless steel, be used in constructing the invention.
Abstract translation: 通用超高真空安装夹具。 该设备是专为超高真空（UHV）兼容而专门设计的扩展配件。 锥形塞的前端插入套筒中的互补形状的锥形孔中。 该套筒具有均匀间隔开的纵向槽，其沿着并穿过锥形表面延伸部分。 当就位时，套筒延伸穿过真空室的壁，配合到真空法兰安装管中。 紧固螺栓延伸穿过插头，使得其可以从插头的后部转动，将插头拉入套筒中，以将套筒刚性地固定在凸缘安装管内的凸缘中刚性地膨胀。 可以将各种不同类型的安装柱附接到插头的前端以突出到室中并且将装置安装在观察下。 插头和孔的互补锥度通常不同，插头具有更大的锥度。 由于腔室的超高真空环境，所以必须在300系列不锈钢中使用超高真空相容材料来构造本发明。
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5.发明授权
公开(公告)号：US3900552A
公开(公告)日：1975-08-19
申请号：US41222273
申请日：1973-11-02
Applicant: US INTERIOR
Inventor： HUNTER WILLARD L , WHITE JACK C , STICKNEY WILLIAM A
CPC classification number: C22B34/1222 , C01B32/90 , C01P2004/51 , C01P2004/61 , C01P2006/80 , C22B34/1218 , Y02P10/23
Abstract: Calcium-containing titanium ores, such as perovskite, or calcium oxide enriched titania slags are fused with carbon to produce titanium carbide particles within a matrix of calcium carbide. The titanium carbide particles are freed from the fused product by reaction with water and are concentrated by physical means. Chlorination of the titanium carbide concentrate at temperatures below the melting point of impurity metal chlorides yields an extremely pure titanium tetrachloride product.
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Patent Agency Ranking6.发明授权
公开(公告)号：US3899129A
公开(公告)日：1975-08-12
申请号：US46133974
申请日：1974-04-16
Applicant: US INTERIOR
Inventor： FUKUTA NORIKIKO , PAIK YOUNG H
CPC classification number: A01G15/00
Abstract: Ice-nuclei smoke particles are produced through contact of an organic ice-nuclei compound with superheated steam under pressure, followed by internal adiabatic and isentropic expansion using a supersonic nozzle.
Abstract translation: 通过有机冰核化合物与过热蒸汽在压力下接触产生冰核烟雾颗粒，然后使用超音速喷嘴进行内部绝热和等熵膨胀。
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公开(公告)号：US3889525A
公开(公告)日：1975-06-17
申请号：US49534774
申请日：1974-08-07
Applicant: US INTERIOR
Inventor： BAILEY WILLIAM V
CPC classification number: G01H13/00 , G01G3/16 , G01L1/10 , Y10S73/01 , Y10S331/02
Abstract: A device for measuring and displaying the natural frequency of a wire under tension by magnetically plucking the wire at a selected frequency for a first period and monitoring the mechanical vibrations during a second period. The selected frequency is manually adjusted until the monitored frequency is of sufficient amplitude to be tracked, at which point the selected frequency is electronically adjusted. The tracked frequency is displayed.
Abstract translation: 一种用于测量和显示在张力下的电线的固有频率的装置，用于以选定的频率对所述电线进行磁力拔除第一周期，并且在第二周期期间监测机械振动。 所选择的频率被手动调整，直到监视的频率具有足够的幅度被跟踪，此时所选频率被电子调节。 显示跟踪的频率。
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公开(公告)号：US3884796A
公开(公告)日：1975-05-20
申请号：US44697474
申请日：1974-03-04
Applicant: US INTERIOR
Inventor： HINDERLITER CHARLES R , PERRUSSEL RUSSELL E
Abstract: A solvation process for producing deashed solid and liquid hydrocarbonaceous fuel from coal. Raw coal is slurred with a solvent comprising hydroaromatic compounds in contact with hydrogen in a first zone to dissolve hydrocarbonaceous fuel from coal minerals by transfer of hydrogen from hydroaromatic solvent compounds to hydrocarbonaceous material in the coal. The slurry is then treated with hydrogen in a second zone to replenish the solvent with hydrogen. The process is improved by retention of coal minerals in the second zone.
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9.发明授权Preparation of high flux cellulose acetate membranes and hollow fibers from prefabricated low flux specimens 失效从预制的低通量样品制备高通量醋酸纤维素膜和中空纤维
公开(公告)号：US3873653A
公开(公告)日：1975-03-25
申请号：US38323373
申请日：1973-07-27
Applicant: US INTERIOR
Inventor： MEINECKE EBERHARD A , MEHTA DEVENDRA V
CPC classification number: B01D71/16 , B01D61/025 , B01D67/002 , B01D67/0093 , B01D69/02 , B01D69/06 , B01D69/08 , B01D2323/20 , D01D5/24 , D01D5/247
Abstract: A method for preparing high flux cellulose acetate membranes and hollow fibers from prefabricated low flux specimens. Low flux, hollow fiber, and planar are annealed in a selected plasticizing medium for a period of time at a temperature characteristic of the chemical nature of the polymer and the plasticizer. The temperature is that at which the plasticizer will begin to selectively solvate the polymer and is referred to as the temperature of incipient porosity.
Abstract translation: 一种从预制的低通量样品制备高通量醋酸纤维素膜和中空纤维的方法。 低通量，中空纤维和平面在选定的增塑介质中在聚合物和增塑剂的化学性质特征的温度下退火一段时间。 温度是增塑剂将开始选择性地溶解聚合物的温度，并且被称为初始孔隙率的温度。
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10.发明授权Process for the preparation of yttrium-silicon compounds or master alloys by silicon carbide reduction of yttria 失效通过氧化钇碳化硅还原制备钇硅化合物或母合金的方法
公开(公告)号：US3873307A
公开(公告)日：1975-03-25
申请号：US41284573
申请日：1973-11-05
Applicant: US INTERIOR
Inventor： MORRICE JR EDWARD , WHISLER NORMAN J
CPC classification number: C22C1/03 , C22B5/06 , Y02P10/122
Abstract: A process for the manufacture of yttrium-silicon master alloys. Using silicon carbide as a reductant, both yttria and silicon carbide are mixed, placed in a crucible and heated for a period of time in a vacuum furnace whereby the mixture is sintered, yielding the desired product and CO and CO2 gases. The charge is maintained under a dynamic vacuum during heating, holding, and cooling with continuous removal of gaseous reaction products.
Abstract translation: 一种制造钇硅母合金的方法。 使用碳化硅作为还原剂，将氧化钇和碳化硅两者混合，置于坩埚中并在真空炉中加热一段时间，由此将混合物烧结，产生所需产物和CO和CO 2气体。 在加热，保存和冷却期间，在气态反应产物的连续除去下，将电荷保持在动态真空下。
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