Transmitting power meter for measurement of radiation
    1.
    发明授权
    Transmitting power meter for measurement of radiation 失效
    发射功率计用于测量辐射

    公开(公告)号:US3887471A

    公开(公告)日:1975-06-03

    申请号:US44334574

    申请日:1974-02-19

    Applicant: KEWANEE OIL CO

    CPC classification number: G01J5/58

    Abstract: A power meter for measuring radiation is disclosed, which includes: a partially transmitting body able to absorb some fraction of radiation incident on the body and to re-emit absorbed energy; and, pyrometric means lying outside the path of incident radiation, for measuring radiation emitted by the body. The amount of emitted radiation is proportional to the intensity of incident radiation. The characteristics of a beam of ultraviolet, visible or infrared radiation are substantially unaffected by transmission through the body, thus permitting use of the beam while it is either continuously or discontinuously monitored.

    Abstract translation: 公开了一种用于测量辐射的功率计,其包括:能够吸收入射在身体上的一部分辐射并且重新发射吸收的能量的部分透射体; 和位于入射辐射路径之外的高温测量装置,用于测量身体发射的辐射。 发射的辐射量与入射辐射的强度成比例。 紫外线,可见光或红外辐射束的特征基本上不受穿过身体的透射的影响,从而允许在连续或不连续监测时使用光束。

    Dustless compositions containing fiberous polytetrafluoroethylene
    2.
    发明授权
    Dustless compositions containing fiberous polytetrafluoroethylene 失效
    含有纤维素聚四氟乙烯的无味组合物

    公开(公告)号:US3838092A

    公开(公告)日:1974-09-24

    申请号:US31687272

    申请日:1972-12-20

    Applicant: KEWANEE OIL CO

    Inventor: VOGT J OWEN J

    Abstract: A PROCESS FOR THE CONTROL OF DUST GENERATED BY NORMALLY DUSTY SOLID PARTICULATE MATERIAL SMALLER THAN 10 MESH IN SIZE, COMPRISING MIXING FROM ABOUT 0.02 TO LESS THAN 1.0 PERCENT, AND PREFERABLY FROM ABOUT 0.02 TO ABOUT 0.75 PERCENT, BY EIGHT, FIBRILLATABLE POLYTETRAFLUOROETHYLENE (HEREINAFTER REFERRED TO AS PTFE) WITH SAID MATERIAL TO FORM AN INTIMATE MIXTURE AND THEN WORKING THE MIXTURE SUFFICIENTLY AT A TEMPERATURE ABOVE 20*C BUT BELOW THE TRANSITION POINT OF SAID PTFE TO FORM ENOUGH PTFE FIBERS TO PRODUCE A WEAK, ESSENTIALLY DUSTLESS AGGLOMERATE FROM SAID DUSTY MATERIAL. A COHERENT, WEAK AGGLOMERATED DUSTLESS SOLID PARTICULATE MASS LACKING RESISTANCE TO PRESSURE OF MECHANICAL SHOCK AND SIMULTANEOUSLU PLIABLE AND FRIABLE AT AMBIENT TEMPERATURES, YET VISUALLY DISTINGUISNABLE FROM THE NORMALLY DUSTY MATERIAL FROM A MIXTURE OF DUSTY DISCRETE AGGLOMERATE IS FORMED FROM A MIXTURE OF DUSTY DISCRETE PARTICLES IN THE SIZE RANGE FROM LESS THAN ABOUT 1 INCH TO ABOUT 2000 MICRONS, AND FIBRILLATABLE PTFE IN AN AMOUNT FROM ABOUT 0.02 BUT LESS THAN 1 PEERCENT BY WEIGHT, BASED ON TOTAL SOLIDS, BY WORKING THE MIXTURE IN A DRY OR RELATIVELY DRY STATE WITH A WORKING ACTION IN AN UNCONFINED ZONE AT A TEMPERATURE INE XCESS OF 20*C., BUT BELOW THE SINTERING TEMPERATURE OF PTFE, WITHOUT CHANGING THE PRIMARY PARTICLES SIZE RANGE OF THE MATERIAL.

    Optical bodies with non-epitaxially grown crystals on surface
    3.
    发明授权
    Optical bodies with non-epitaxially grown crystals on surface 失效
    具有表面非平面晶体的光学体

    公开(公告)号:US3837882A

    公开(公告)日:1974-09-24

    申请号:US17744771

    申请日:1971-09-02

    Applicant: KEWANEE OIL CO

    Abstract: This is a process for growing non-epitaxially a different crystal upon a base crystal surface and thereafter destroying said different crystal, thereby generating a uniformly random arrangement of surface irregularities which are independent of lattice orientation in the base crystal. The texture of the treated surface is unlike prior art surfaces, whether produced chemically or mechanically, and specular reflections are essentially eliminated.

    Abstract translation: 这是在基底表面上非外延生长不同晶体,然后破坏所述不同晶体的方法,从而产生与基晶中的晶格取向无关的表面凹凸的均匀随机排列。 经处理的表面的纹理不同于现有技术的表面,无论是化学还是机械产生,并且基本上消除了镜面反射。

    Copper plating process for printed circuits
    4.
    发明授权
    Copper plating process for printed circuits 失效
    用于印刷电路的铜镀层工艺

    公开(公告)号:US3769179A

    公开(公告)日:1973-10-30

    申请号:US3769179D

    申请日:1972-01-19

    Applicant: KEWANEE OIL CO

    Inventor: DUROSE A MALAK T

    CPC classification number: H05K3/423 C25D3/38 C25D5/16 Y10S205/92

    Abstract: A perforated printed circuit board is plated with a smooth and ductile deposit of copper from a high acid-low copper sulfate bath under conditions that give a copper deposit having a surface to hole thickness ratio of less than unity. Plating is carried out at a current density of between 15 and 60 asf using a bath maintained at a temperature of between 20* and 30*C., said bath containing 70-150 g/l of CuSO4.5H2O and 175-300 g/l of H2SO4 and preferably including 1 or more grain refining agents. The process is applicible to boards up to 1/8 inch thick and wherein the ratio of board thickness to hole diameter is between about 1/1 and 4/1.

    Abstract translation: 穿孔印刷电路板在产生具有小于1的表面 - 孔厚度比的铜沉积物的条件下,从高酸度低硫酸铜浴中镀有光滑且延性良好的铜沉积物。 使用保持在20℃至30℃之间的浴,以15至60的电流密度进行电镀,所述浴含有70-150g / l的CuSO 4·5H 2 O和175-300g / 1的H 2 SO 4,优选包括1种或更多种晶粒细化剂。 该方法可应用于厚度为1/8英寸的板,其中板厚度与孔直径之比在1/1至4/1之间。

    Process of black chromium plating
    5.
    发明授权
    Process of black chromium plating 失效
    黑色镀层工艺

    公开(公告)号:US3620935A

    公开(公告)日:1971-11-16

    申请号:US3620935D

    申请日:1969-11-24

    Applicant: KEWANEE OIL CO

    Inventor: WILLSON KARL S

    CPC classification number: C25D3/08

    Abstract: The process and the improved black chromium plating produced thereby comprising electroplating chromium from an aqueous bath containing hexavalent chromium, trivalent chromium and a lower aliphatic carboxylic acid such as acetic acid. The hexavalent chromium compound is present in a range equivalent to 150-425 grams per liter of chromic acid anhydride; the trivalent chromium is present in an amount 8-30 grams per liter; and the total carboxylic acid, in both acid and carboxylate form, is in the range of 170-350 grams per liter of acid. The electroplating is conducted at 60-85* F. and with a cathode current density of 751000 amperes per sq. ft. The trivalent chromium concentration given above not only permits reproducable lustrous black chromium plating but also greatly decreases the break-in period for the bath. A further addition of ferric ions of up to 25 grams per liter further decreases or completely eliminates the break-in period and also increases the maximum operating temperature of the plating bath to 105* F. When iron is utilized, the combined concentration of trivalent chromium and iron should not exceed 35 grams per liter.

    Chromium-nickel plating
    6.
    发明授权
    Chromium-nickel plating 失效
    铬镍镀层

    公开(公告)号:US3563864A

    公开(公告)日:1971-02-16

    申请号:US3563864D

    申请日:1965-04-26

    Applicant: KEWANEE OIL CO

    Abstract: THIS INVENTION COMPRISES A COMPOSITE OR LAMINATED METALLIC COATING, AND A PROCESS FOR MAKING SUCH COATING, COMPRISING A FIRST LAYER OF NICKEL AND AN OVERLYING LAYER OF CHROMIUM, THE LAMINATE BEING CRACKED IN A CRAZE PATTERN IN THE RANGE OF 300 TO 3000 CRACKS PER LINEAL INCH PREPARED BY ELECTRODEPOSITING ON A METAL SUBSTRATE A STRESSED LAYER OF NICKEL AND THEREAFTER ELECTRODEPOSITING ON THIS STRESSED LAYER OF NICKEL A STRESSED LAYER OF CHROMIUM ADHERENT TO THE STRESSED LAYER OF NICKEL AND HEATING THE RESULTANT LAMINATE. THE STRESSING IN THE RESPECTIVE LAYERS MAY BE EFFECTED BY MEANS OF AN ADDICTIVE IN THE ELECTROPLATING SOLUTION FROM WHICH IT IS PRODUCED. THE RESULTANT CRAZING GIVES AN IMPROVED PROTECTION AGAINST CORROSION.

    Process for preparation of hot-pressable magnesium fluoride
    9.
    发明授权
    Process for preparation of hot-pressable magnesium fluoride 失效
    制备热压氟化镁的方法

    公开(公告)号:US3920802A

    公开(公告)日:1975-11-18

    申请号:US44794874

    申请日:1974-03-04

    Applicant: KEWANEE OIL CO

    Abstract: A process is disclosed for converting basic magnesium carbonate into pure hot-pressable magnesium fluoride such as is used for the hot-pressing of infra-red radiation transmitting optical bodies. The process includes contacting a slurry of basic magnesium carbonate with carbon dioxide to form enough magnesium bicarbonate or hydrates of magnesium carbonate, in situ, to alter the particles in the slurry. Carbonation of the slurry increases solubility of the solids by establishing an equilibrium relationship in solution between the unstable magnesium bicarbonate and hydrates of magnesium carbonate particles. When the carbonated slurry is contacted with a slight excess of hydrofluoric acid it precipitates solid particles of fine hydrous magnesium fluoride. Neutralization of excess hydrofluoric acid is effected with ammonium hydroxide. The solid particulate precipitate is dried and calcined to yield hot-pressable magnesium fluoride powder of exceptional purity and consistent quality. A hot-pressable magnesium fluoride powder has been prepared which has a specific and uniform refractive index, nD 1.3850 at 20* C; the powder is made up of primary particles the majority of which have an average particle diameter of greater than 5 Mu (microns), permitting the hot-pressing of the powder without grinding it.

    Laminated dosimetric card
    10.
    发明授权
    Laminated dosimetric card 失效
    层压剂量测定卡

    公开(公告)号:US3894238A

    公开(公告)日:1975-07-08

    申请号:US42201473

    申请日:1973-12-05

    Applicant: KEWANEE OIL CO

    CPC classification number: G01T1/11 G01T1/02 G01T1/115 Y10S430/165

    Abstract: A laminated card with one or more apertures, each adapted to peripherally seal an encapsulated dosimeter, is formed by bonding a foraminous, code-adaptable, rigid sheet of low-Z material with a codedly transparent sheet of low-Z material in lighttransmitting registry with particular code-holes of the rigid sheet. The laminated card may be coded to identify the person carrying it, and/or the location or circumstances related to its exposure to radiation. This card is particularly adapted for use in an instrument capable of evaluating a multiplicity of cards, substantially continuously. The coded identification from the card may be displayed by an appropriate machine, and if desired an evaluation may be recorded because of a ''''parity checking'''' system incorporated in each card, which permits ''''autocorrection.'''' Alternatively, where means for effecting the correction automatically are available, the operation of the machine may be interrupted to permit visual examination of a rejected card. The card of this invention is also coded for identifying the type of card with respect to its specific function, and whether or not a card is correctly positioned at any predetermined location during its sequential progress through the instrument in which it is evaluated. Dosimeters are evaluated and the card identified in one pass through the instrument.

    Abstract translation: 具有一个或多个孔的层压卡片,各自适于周边地密封封装的剂量计,是通过将低Z材料的多孔,可编码适应的刚性片与低Z材料的编码透明片材在透光 使用刚性片的特定代码孔注册。 层压卡可以被编码以识别携带它的人,和/或与其暴露于辐射有关的位置或情况。 该卡特别适用于能够基本连续地评估多张卡的仪器。 来自卡的编码标识可以由适当的机器显示,并且如果需要,可以记录评估,因为每个卡中包含的“奇偶校验”系统允许“自动校正”。 或者,如果自动进行校正的手段可用,则机器的操作可能被中断以允许目视检查被拒绝的卡。 本发明的卡还被编码用于识别相对于其特定功能的卡的类型,以及在通过其被评估的仪器的连续进行期间卡是否被正确定位在任何预定位置。 评估剂量,并在一次通过仪器中识别卡。

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