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    • 62. 发明申请
    • VALVE PIN CROSS OVER NOZZLE FOR STACK MOULD
    • 用于堆叠模具的阀门十字头
    • WO2004033182A1
    • 2004-04-22
    • PCT/CA2003/001192
    • 2003-08-11
    • STACKTECK SYSTEMS LTD.RICK, Robert
    • RICK, Robert
    • B29C45/32
    • B29C45/322B29C2045/2882
    • According to the present invention, a cross over nozzle (10) is provided of two parts (22, 24) which, when joined, define a housing (20) having a passage (30) extending therethrough, a tapered valve seat (50) extending about the passage and a valve member (60) having a tapered valve head (62) disposed in the passage for engaging the valve seat (50). The two parts are axially separable at an interface extending through the valve seat/valve head. In order to open the valve, both valve parts (64, 66) are first joined and then moved together as one member in the same direction relative to the housing (20) axially away from the valve seat. Similarly, the valve members are jointly moved into engagement with the valve seat before the cross over nozzle is separated. Accordingly, unlike the valve gate design, the valve interface (68) between the two parts of the valve head isn't exposed to molten resin and therefore molten resin isn't trapped therebetween to cause a string upon opening.
    • 根据本发明,十字喷嘴(10)设置有两个部分(22,24),当两个部分(22,24)接合时,限定了具有延伸穿过其中的通道(30)的壳体(20),锥形阀座(50) 围绕通道延伸的阀构件(60)和具有设置在通道中的用于接合阀座(50)的锥形阀头(62)的阀构件(60)。 两个部件在延伸穿过阀座/阀头的界面处可轴向分离。 为了打开阀门,两个阀部件(64,66)首先接合,然后作为一个构件以相对于壳体(20)的方向相对于阀座轴向移动在一起。 类似地,在交叉喷嘴分离之前,阀构件共同地与阀座接合。 因此,与阀门设计不同,阀头的两部分之间的阀接口(68)不暴露于熔融树脂,因此熔融树脂不会被夹在其间,从而在打开时产生一串。
    • 64. 发明申请
    • MICROSTRUCTURED RF FLUX RETURN YOKE FOR INCREASED SENSITIVITY IN NMR EXPERIMENTS
    • 核磁共振实验中微结构的RF通路返回键提高灵敏度
    • WO2004010159A1
    • 2004-01-29
    • PCT/CA2003/001048
    • 2003-07-22
    • HENKELMAN, Mark, R.
    • HENKELMAN, Mark, R.
    • G01R33/34
    • G01R33/341G01R33/34092
    • Apparatus for nuclear magnetic resonance includes a sample container, a receiver coil adjacent to and surrounding the sample container and a flux return yoke for directing magnetic flux from the same falling outside the receiver coil back thereto, the yoke comprising a material having a variable magnetic permeability tuned for a particular frequency range. The material of the return yoke with a variable magnetic permeability includes an array of capacitive/inductive elements. Each capacitive/inductive element has a low resistance conducting path and is configured such that a magnetic component (H) of electromagnetic radiation lying within a predetermined frequency band induces an electrical current O(x)) to flow around said path and through the associated element. The size of the elements and their spacing apart are selected to provide a predetermined permeability in response to the received electromagnetic radiation.
    • 用于核磁共振的装置包括样品容器,与样品容器相邻并围绕样品容器的接收器线圈和用于将来自接收器线圈外部的磁通量引导回到其上的磁通返回磁轭,该磁轭包括具有可变磁导率的材料 调谐到特定的频率范围。 具有可变磁导率的返回轭的材料包括电容/电感元件的阵列。 每个电容/感应元件具有低电阻导电路径并且被配置为使得位于预定频带内的电磁辐射的磁性分量(H)引起电流O(x))绕所述路径流动并通过相关元件 。 选择元件的尺寸及其间隔,以响应于所接收的电磁辐射提供预定的磁导率。
    • 65. 发明申请
    • THERMAL FLUX REGULATOR
    • 热通量调节器
    • WO2002090461A1
    • 2002-11-14
    • PCT/CA2002/000674
    • 2002-05-02
    • GOROKHOVSKY, Vladimir
    • GOROKHOVSKY, Vladimir
    • C09K5/14
    • F28F13/00C23C16/458C23C16/46F28F2013/008
    • A heat transfer regulating mixture having a metallic component. A with a melting point T A and a particulate ceramic component B which is non-wettable by the metallic component A, non-reactive therewith and which has a melting temperature T B which is higher than both the temperature T A and a desired operating temperature T D which is also higher than T A . The metallic component A and the particulate ceramic component B and the respective amounts will typically be selected to have a higher thermal resistivity above T A than below T A . The heat transfer regulating mixture may be incorporated in a thermal flux regulator having the mixture within an enclosure surrounding a heat generating reactor structure.
    • 具有金属成分的传热调节混合物。 A具有熔点TA和颗粒状陶瓷组分B,其不被金属组分A润湿,不与其反应,并且具有高于温度TA和所需操作温度TD两者的熔融温度TB,其为 也高于TA。 金属组分A和颗粒状陶瓷组分B以及相应的量通常将被选择为具有比TA低于TA的更高的热电阻率。 传热调节混合物可以结合在具有围绕发热反应器结构的外壳内的混合物的热通量调节器中。