Collection method for gaseous or liquid phase materials
    54.
    发明授权
    Collection method for gaseous or liquid phase materials 失效
    气相或液相材料的收集方法

    公开(公告)号:US5375425A

    公开(公告)日:1994-12-27

    申请号:US981271

    申请日:1992-11-25

    申请人: Douglas A. Cobb

    发明人: Douglas A. Cobb

    IPC分类号: F17C6/00 F25B45/00 F25D31/00

    摘要: Removal of refrigerant from a closed refrigeration system is achieved without pumping by developing a deep (e.g. 10 to 20 inches of mercury) partial vacuum in a collection vessel by reducing the temperature thereof. The partial vacuum is self-sustaining through the condensation and solidification of collected fluid at cryogenic temperatures and the reduction of vapor pressures thereof. The cryogenic material is preferably applied to the collection vessel by means of a bucket-shaped foam core in which the collection vessel is placed. Grooves formed on the interior of the core provide spacing and frictional engagement with the collection vessel while forming voids for maintaining a cryogenic material in contact with the collection vessel. The safety of a collection system employing the invention is enhanced since the amount of fluid collected can be regulated by the amount of cryogenic material used to condense and solidify the fluid.

    摘要翻译: 通过降低其收集容器中的深度(例如10至20英寸汞柱)的部分真空来实现从封闭的制冷系统中去除制冷剂而不需要泵送。 部分真空通过在低温下收集的液体的冷凝和固化以及蒸气压降低而自维持。 低温材料优选通过其中放置收集容器的桶形泡沫芯体施加到收集容器。 形成在芯部内部的凹槽提供与收集容器的间隔和摩擦接合,同时形成用于维持低温材料与收集容器接触的空隙。 使用本发明的收集系统的安全性得到增强,因为所收集的流体的量可以通过用于冷凝和固化流体的低温材料的量来调节。

    Cryogenic devices
    56.
    发明授权
    Cryogenic devices 失效
    低温装置

    公开(公告)号:US3353365A

    公开(公告)日:1967-11-21

    申请号:US52612566

    申请日:1966-02-09

    发明人: NORMAN CHUBB JOHN

    摘要: 1,075,316. Refrigerating. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Feb. 4, 1966 [Feb. 24, 1965], No. 8035/65. Heading F4H. A cryogenic device comprises a vessel 1 having a cold surface 2 and containing a cryogenic liquid at a predetermined temperature, an intermediate vessel 10 in communication with vessel 1 through duct 11, a connection 16 for supplying cryogenic liquid from a dewar vessel 3 to the vessel 10 and a valve 12 in the latter for opening the duct 11 only when the temperature of the liquid in vessel 10 is substantially the same as that of the liquid in vessel 1. Vessels 10, 1 and 3 have respective vapour outlets 14, 15, 23 which are each connectable to a common vapour pump (20, Fig. 2, not shown), via a set of three valves (VT1-3, VC1-3 or VD1-3) of progressively decreasing aperture, the valves being controlled by relays energized in response to signals from contacts disposed at different levels in the legs of manometers (Fig. 3, not shown) connected to the respective vessels. Thermometers T 1 and T 2 define the maximum and minimum level of liquid in vessel 1 and a thermometer T 3 is provided to detect the presence of a predetermined level of liquid in vessel 10. The pressures and temperatures within the vessels, the transfer of liquid from vessel 3 to vessel 10 and the transfer of liquid from vessel 10 to vessel 1 are controlled automatically by a logic circuit (Fig. 5, not shown) in response to signals from the pressure and temperature-sensing means. Surface 2 preferably comprises a condensing surface of a cryopump and vessel 1 is surrounded by a heat shield 7 which is an extension of a double-walled lliquid nitrogen containing vessel 8. The cryogenic liquid is preferably helium.

    Method and Scalable Devices for Hyper-Fast Cooling and Warming
    58.
    发明申请
    Method and Scalable Devices for Hyper-Fast Cooling and Warming 审中-公开
    用于超快速冷却和变暖的方法和可扩展设备

    公开(公告)号:US20140069119A1

    公开(公告)日:2014-03-13

    申请号:US14011799

    申请日:2013-08-28

    IPC分类号: F25D3/10

    摘要: The present invention, in some embodiments thereof, relates to a method and scalable devices for hyperfast cooling and re-warming of samples. More specifically, it relates to cryogenic preservation of biological samples via vitrification. It includes: a liquid sample placed at ambient temperature in a flat thermo conductive container that in some embodiments additionally contains a detachable disposable or sterilizable thermo conductive spiral; transferring the sample to a cooling chamber using a linear percussion stepping motor drive; hyperfast cooling of the sample using streams of pressurized liquid coolant; transferring the sample to a detachable shipping/storage chamber filled with liquid coolant, from which the sample can be transferred to another vessel that contains liquid cryogenic coolant and moved back to the shipping/storage chamber. This chamber can be then attached to a re-warming chamber, in which the sample is heated to a biologically tolerant temperature above 0 degrees Celsius in a hyperfast manner.

    摘要翻译: 本发明在一些实施例中涉及一种用于样品的高温冷却和再升温的方法和可扩展的装置。 更具体地说,它涉及通过玻璃化的生物样品的低温保存。 其包括:在环境温度下放置在平坦的热导性容器中的液体样品,在一些实施例中另外包含可拆卸的一次性或可消毒的热导螺旋; 使用线性冲击步进电机驱动将样品转移到冷却室; 使用加压液体冷却剂流对样品进行高速冷却; 将样品转移到填充有液体冷却剂的可拆卸运输/储存室,样品可以从该液体冷却剂转移到另一个包含液体低温冷却剂的容器中并移回运送/储存室。 然后可以将该室连接到再升温室,其中将样品以超快速方式加热至0摄氏度以上的生物耐受温度。