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公开(公告)号：US3868509A
公开(公告)日：1975-02-25
申请号：US42205273
申请日：1973-12-05
Applicant: US INTERIOR
Inventor： FASCHING GEORGE E , PATTON GEORGE H
CPC classification number: G01T1/40
Abstract: A method and the apparatus to practice the method in which the drift of single channel analyzers is reduced. Essentially, this invention employs a time-sharing or multiplexing technique to insure that the outputs from two single channel analyzers (SCAS) maintain the same count ratio regardless of variations in the threshold voltage source or voltage changes. the multiplexing technique is accomplished when a flip flop, actuated by a clock, changes state to switch the output from the individual SCAS before these outputs are sent to a ratio counting scalar. In the particular system embodiment disclosed that illustrates this invention, the sulfur content of coal is determined by subjectiong the coal to radiation from a neturon producing source. A photomultiplier and detector system equates the transmitted gamma radiation to an analog voltage signal and sends the same signal, after amplification, to a SCA system that contains our invention. Therein, at least two single channel analyzers scan the analog signal over different parts of a spectral region. The two outputs may then be sent to a digital multiplexer so that the outputs may then be sent to a digital multiplexer so that the output from the multplexer contains counts falling within two distinct segments of the region. By dividing the counts from the multiplexer by each other, the precentage of sulfur within the coal sample under observation may be determined.
Abstract translation: 实现单通道分析仪漂移减小的方法和装置。 本质上，本发明采用分时或复用技术来确保来自两个单通道分析器（SCAS）的输出保持相同的计数比，而不管阈值电压源或电压变化如何变化。 当由时钟致动的触发器在将这些输出发送到比率计数标量之前改变状态以切换来自单个SCAS的输出时，实现复用技术。
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12.发明授权
公开(公告)号：US3838716A
公开(公告)日：1974-10-01
申请号：US38224873
申请日：1973-07-24
Applicant: US INTERIOR
CPC classification number: B65B1/22
Abstract: Particulate material is deposited in an elongated container by continuously and uniformly depositing the material in the container while repeatedly lifting and dropping (and impacting) the container and the particle delivery means. Post-impact vibration and bouncing are damped.
Abstract translation: 通过将材料连续且均匀地沉积在容器中，同时重复地提升（并冲击）容器和颗粒输送装置，将颗粒沉积在细长的容器中。 冲击后振动和弹跳被阻尼。
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公开(公告)号：US3834896A
公开(公告)日：1974-09-10
申请号：US26501172
申请日：1972-06-21
Applicant: US INTERIOR
CPC classification number: C22B11/06 , C22B3/24 , Y02P10/234
Abstract: GOLD IS RECOVERED FROM ITS ORES BY TREATING THE ORES AT ELEVATED TEMPERATURE WITH GASEOUS CHLORINE IN THE PRESENCE OF (1) A PROMOTER COMPRISING A COMPOUND OF IRON, ALUMINUM OR GALLIUM AND (2) ACTIVATED CARBON, WHEREBY THE COMPLEX AUMECL6, WHERE ME IS IRON, ALUMINUM OR GALLIUM, IS FORMED AND IS ADSORBED ON THE ACTIVATED CARBON. THE GOLD-LADEN ACTIVATED CARBON IS THEN SEPARATED FROM THE GANGUE BY FROTH FLOTATION AND THE GOLD RECOVERED FROM THE CARBON BY CONVENTIONAL MEANS.
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公开(公告)号：US3833717A
公开(公告)日：1974-09-03
申请号：US27701672
申请日：1972-08-01
Applicant: US INTERIOR
Inventor： LINDSTROM R , ELGES C , HASKETT P , BAUER D
CPC classification number: C01G3/02 , C01P2006/60
Abstract: CUPRIC AMMINE COMPLEX IS REDUCED BY CUPROUS AMMINE COMPLEX IN AQUEOUS SOLUTION BY MEANS OF CONVENTIONAL REDUCING AGENTS SUCH AS H2 OR CO. THE CUPROUS COMPLEX IS THEN TREATED WITTH A BASE, SUCH AS NAOH, TO PRECIPITATE CUPROUS OXIDE.
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公开(公告)号：US3829856A
公开(公告)日：1974-08-13
申请号：US40560373
申请日：1973-10-11
Applicant: US INTERIOR
Inventor： CONROY G , PARKINSON H
CPC classification number: H04M19/04
Abstract: A telephone visual paging system that is actuated by an audio signal. The audio input current is used to power two or more light emitting diodes which are housed on a telephone receiver. Other than the audio signal power supply, no separate power supply system is needed to power these light sources. By superimposing variations caused by the audio input signal on the periodic switching signals from a multivibrator, the light emitting diodes can generate a semaphore radiation action to get the visual attention of an observer. This invention is particularly useful in hazardous gaseous environments, like coal mines, where electric wiring connections and the possibility of ignitions from electric sources should be minimized.
Abstract translation: 由音频信号驱动的电话可视寻呼系统。 音频输入电流用于为容纳在电话接收器上的两个或更多个发光二极管供电。 除了音频信号电源，不需要单独的电源系统来为这些光源供电。 通过将由音频输入信号引起的变化叠加在来自多谐振荡器的周期性切换信号上，发光二极管可以产生信号量辐射动作以获得观察者的视觉注意。 本发明特别适用于诸如煤矿之类的危险气体环境，其中电线连接和电源点火的可能性应该被最小化。
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Patent Agency Ranking
公开(公告)号：US3826808A
公开(公告)日：1974-07-30
申请号：US38521473
申请日：1973-08-02
Applicant: US INTERIOR
Inventor： NICHOLS I , DANNENBERG R
IPC: C01G41/00
CPC classification number: C01G41/00
Abstract: TUNGSTATE ION IN ALKALINE BRINE IS COMPLEXED WITH A DIHYDROXY PHENOLIC COMPOUND PRIOR TO EXTRACTION WITH AN ORGANIC SOLVENT OR A RESIN.
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公开(公告)号：US3826128A
公开(公告)日：1974-07-30
申请号：US32882273
申请日：1973-02-01
Applicant: US INTERIOR
CPC classification number: E21F17/185
Abstract: An apparatus to indicate deformation of a surface such as the interior of a mine, to which it is attached. An anchor bolt assembly with one electrical contact is rigidly fixed into the surface. A movable pressure plate assembly with another electrical contact, engageable by the first contact on the bolt assembly is placed against the surface. When this plate is moved by surface deformations, it causes the contacts to engage each other which results in the actuation of a sensing device. The sensing device can either actuate a transmitter to transmit a frequency modulated signal of a fixed or variable frequency or it can actuate a recording device that records data on the deformation. Several extendable arms may also be included to actuate a transmitter when overhead rocks or other objects fall near the apparatus. The arms may be arranged in a spider-like pattern around the periphery of the pressure plate assembly to which it is pivotally attached. Two spaced electrical contact rings associated with the arms are closed when an object pivots one of the arms. This closure can then actuate the same transmitter the deformation plate could actuate which results in a fixed frequency warning signal being transmitted. A series of the signals from several transmitters may be fed to a common receiver. By making each signal different and associating the physical location of a given transmitter with a given signal, the deformation that occurs at a given point may be readily segregated from the others. This allows the sending of a warning signal or other type signal to persons in the danger zone.
Abstract translation: 指示其附接到的矿井内部的表面变形的装置。 具有一个电接触件的锚定螺栓组件刚性地固定在表面中。 具有另一电接触件的可移动压板组件可被第一接触件接合在螺栓组件上，以抵靠表面放置。 当该板被表面变形移动时，它使触点相互啮合，这导致感测装置的致动。 感测装置可以启动发射器来发送固定或可变频率的频率调制信号，或者可以启动记录数据在变形上的记录装置。 当顶部岩石或其他物体落在设备附近时，也可以包括若干可伸展臂来致动发射器。 臂可以围绕其枢轴连接的压板组件的周边布置成蜘蛛状图案。 当物体枢转臂中的一个时，与臂相关联的两个间隔开的电接触环闭合。 然后，该闭合可以致动变形板可以致动的相同的发射器，这导致传输固定的频率警告信号。
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公开(公告)号：US3798140A
公开(公告)日：1974-03-19
申请号：US3798140D
申请日：1973-02-01
Applicant: US INTERIOR
Inventor： SULLIVAN T , SINGLETON E , JOHNSON M
Abstract: NACL-KCL-ALCL3
OR NACL-KCL-ALF3. MOLTEN ALUMINUM IS PRODUCED AT THE CATHODE, ANODE RESIDUE IS ACID LEACHED TO PRODUCE METALLURGICAL GRADE SILICON.
ALUMINUM-SILICON ALLOY PRODUCED, FOR EXAMPLE, BY SMELTING ALUMINUM-SILICATE ORE, IS EMPLOYED AS THE ANODE IN ELECTROLYSIS IN A MOLTEN SALT ELECTROLYTE OF-
公开(公告)号：US3788953A
公开(公告)日：1974-01-29
申请号：US3788953D
申请日：1971-04-05
Applicant: US INTERIOR
Inventor： KOHL A
CPC classification number: C02F1/043 , F28B3/00 , Y10S159/17
Abstract: In direct contact condensation system wherein vapor condenses upon a flowing shallow stream of cooler liquid, the flow of the uppermost layer of the liquid stream is disrupted without disrupting the flow of the main body of the stream so as to agitate and turn over the uppermost layer, and move the uppermost layer downward to a region where the natural turbulence of the flowing stream will further agitate and break up said layer.
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公开(公告)号：US3773889A
公开(公告)日：1973-11-20
申请号：US3773889D
申请日：1971-06-30
Applicant: US INTERIOR
CPC classification number: B01J47/10 , C22B60/0265
Abstract: A METHOD FOR RECOVERING METALS FROM A SOLUTION OR SLURRY COMPRISING COUNTERCURRENTLY CONTACTING THE SOLUTION OR SLURRY WITH AN ION EXCHANGE RESIN COLUMN OPERATING ON THE SOLUTION UPFLOW PRINCIPLE. THE ION EXCHANGE RESIN COLUMN IS CHARACTERIZED BY SUBDIVISION INTO A SERIES OF MULTIPLE VERTICAL SECTIONS EACH SEPARATED FROM THE OTHER BY A ZONE OF REDUCED DIAMETER. THE METHOD OF THE INVENTION IS PARTICULARLY EFFECTIVE FOR RECOVERING URANIUM FROM SOLUTIONS OF LOW URANIUM CONTENT.
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