Method and apparatus electrostatically controlling the viscosity and other properties of ceramic compositions
    1.
    发明授权
    Method and apparatus electrostatically controlling the viscosity and other properties of ceramic compositions 失效
    方法和设备静电控制陶瓷组合物的粘度和其他性能

    公开(公告)号:US07374331B1

    公开(公告)日:2008-05-20

    申请号:US11060823

    申请日:2005-02-18

    Inventor: David M. Goodson

    Abstract: A method and apparatus for reducing the viscosity of a fluidic cementitious mixture, the apparatus including a high voltage source, first and second spaced electrode members electrically connected to the high voltage source and (when energized) define an electrostatic field therebetween. The positioning of particulate cementitious material within the electrostatic field imparts like charges to the cementitious particles. By establishing such an electric field and positioning cementitious particles within the field, the particles may be charged prior to mixing into a hydrated cementitious slurry. Such charging decreases the viscosity and/or enhances the flowability of the hydrated cementitious slurry.

    Abstract translation: 一种用于降低流体性水泥混合物的粘度的方法和装置,该装置包括高电压源,电连接到高电压源的第一和第二隔开的电极构件(当被激励时)限定了它们之间的静电场。 颗粒状水泥质材料在静电场内的定位对于水泥质颗粒来说就像电荷一样。 通过建立这样的电场并将水泥质颗粒定位在场内,可以在混合成水合水泥质浆料之前将颗粒带电。 这种装料降低粘度和/或提高水合水泥浆料的流动性。

    Refrigeration cycle
    3.
    发明授权
    Refrigeration cycle 失效
    制冷循环

    公开(公告)号:US5070705A

    公开(公告)日:1991-12-10

    申请号:US640350

    申请日:1991-01-11

    CPC classification number: F25B41/04 F25B45/00 F25B49/027 F25B2400/16

    Abstract: A refrigeration system is described in two preferred embodiments. In both embodiments, the refrigeration cycle includes a conventional compressor, condenser, expansion valve and evaporator. The receiver is not in the loop normally. In one embodiment, a pressure differential valve diverts subcooled refrigerant to the receiver only in response to a predetermined difference in pressure between the saturation pressure caused by the ambient surrounding the condenser, plus spring pressure and the pressure within the line leaving the condenser. Refrigerant thus diverted is metered back into the suction side of the system. In a second embodiment, compressed gas exiting the compressor is diverted to the receiver responsive to a pressure differential between saturation pressure caused by condenser ambient plus spring pressure and the pressure within the receiver. The refrigerant thus diverted raises the pressure within the receiver which in turn drives liquid refrigerant back into the liquid line.

    Abstract translation: 在两个优选实施例中描述了制冷系统。 在两个实施例中,制冷循环包括常规压缩机,冷凝器,膨胀阀和蒸发器。 接收器不正常循环。 在一个实施例中,压差阀仅根据由围绕冷凝器的环境引起的饱和压力加上弹簧压力和离开冷凝器的管线内的压力之间的预定压力差,将过冷却的制冷剂转移到接收器。 如此转移的制冷剂被计量回到系统的吸入侧。 在第二实施例中,离开压缩机的压缩气体响应于由冷凝器环境加弹簧压力引起的饱和压力与接收器内的压力之间的压差而转向接收器。 这样转向的制冷剂提高了接收器内的压力,这又将液体制冷剂驱回液体管线。

    Method for making improved ceramic cement compositions containing a dispersed seeded phase and a method and apparatus for producing seed crystals
    4.
    发明授权
    Method for making improved ceramic cement compositions containing a dispersed seeded phase and a method and apparatus for producing seed crystals 失效
    制备含有分散种子相的改进的陶瓷水泥组合物的方法和用于生产晶种的方法和装置

    公开(公告)号:US06765153B2

    公开(公告)日:2004-07-20

    申请号:US09881509

    申请日:2001-06-14

    Inventor: David M. Goodson

    Abstract: A method of controlling the physical properties of cement by adding a predetermined amount of a second phase to a first phase cementitious precursor. The second phase is added in the form of seed crystals having controlled sizes, shapes, and compositions. The seed crystals provide growth sites upon curing the cement for a second phase in the cement body. The curing is accelerated by the presence of the seed crystals. Control of the microstructure of the resulting cement body through controlled distribution and growth of the seed crystals enables the formation of a cement body having precisely controlled physical properties.

    Abstract translation: 通过向第一相胶结物前体添加预定量的第二相来控制水泥的物理性质的方法。 第二相以具有受控尺寸,形状和组成的晶种的形式加入。 在水泥体中固化第二相时,晶种提供生长位置。 通过晶种的存在加速固化。 通过晶种的受控分布和生长控制所得水泥体的微观结构,可形成具有精确控制的物理性质的水泥体。

    Sprayable phosphate cementitious coatings and a method and apparatus for the production thereof
    5.
    发明授权
    Sprayable phosphate cementitious coatings and a method and apparatus for the production thereof 失效
    可喷涂的磷酸盐水泥涂层及其生产方法和装置

    公开(公告)号:US06458423B1

    公开(公告)日:2002-10-01

    申请号:US09631445

    申请日:2000-08-02

    Inventor: David M. Goodson

    Abstract: A sprayed-on phosphate cement coating formed from the combination and reaction of a phosphoric acid solution and a base metal solution. The acid solution and base solution may be intermixed prior to spraying, during spraying, or on a substrate. The curing reaction rate of the phosphate cement coating and its final physical properties may be controlled by adding various retardants, accelerants, reducers, wetting agents, superplasticizers, buffers, water reducers, adhesive agents, hardening agents, and/or sequestrants to the precursor solutions. The curing rate and properties of the cement coating may be further controlled by adjusting the temperature of the precursor solutions and/or the target substrate.

    Abstract translation: 由磷酸溶液和贱金属溶液的组合和反应形成的喷涂磷酸盐水泥涂层。 酸溶液和碱溶液可以在喷雾,喷雾之前或在基材上混合。 磷酸盐水泥涂层的固化反应速率及其最终物理性能可以通过向前体溶液中加入各种阻燃剂,促进剂,还原剂,润湿剂,超增塑剂,缓冲剂,减水剂,粘合剂,固化剂和/或螯合剂来控制 。 可以通过调节前体溶液和/或靶基质的温度来进一步控制水泥涂层的固化速度和性能。

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