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    Carbon dioxide dry cleaning system
    1.
    发明授权
    Carbon dioxide dry cleaning system 有权
    二氧化碳干洗系统

    公开(公告)号：US06216302B1

    公开(公告)日：2001-04-17

    申请号：US09313426

    申请日：1999-05-17

    申请人： A. Duane Preston ,  Jon R. Turner

    发明人： A. Duane Preston ,  Jon R. Turner

    IPC分类号： D06F4308

    CPC分类号： D06F43/00 ,  D06F43/007 ,  D06F43/08 ,  D06F43/081 ,  F17C7/02 ,  F17C2205/0142 ,  F17C2221/013 ,  F17C2223/0153 ,  F17C2223/035 ,  F17C2270/05

    摘要： A carbon dioxide dry cleaning system features a pair of liquid carbon dioxide storage tanks in communication with a compressor. A sealed cleaning chamber contains the objects being dry cleaned. By selectively pressurizing the storage tanks with the compressor, liquid carbon dioxide is made to flow to the cleaning chamber through cleaning nozzles so as to provide agitation of the objects being dry cleaned. Liquid carbon dioxide displaced from the cleaning chamber returns to the storage tanks. A still is disposed within one of the storage tanks and receives soiled liquid carbon dioxide as it is returned from the chamber. The pressure in the storage tank causes the soiled liquid carbon dioxide in the still to boil off. The gas is communicated to a third tank. The third tank may be used to initially pressurize the cleaning chamber. The system also includes a dispenser for the injecting solvent additives into the liquid carbon dioxide. The agitation pressure of the system may also be adjusted so that delicate objects may be cleaned without damage.

    摘要翻译： 二氧化碳干洗系统具有与压缩机连通的一对液体二氧化碳储存罐。 密封的清洁室包含被干燥清洁的物体。 通过用压缩机选择性地对储罐进行加压，使二氧化碳液体通过清洁喷嘴流到清洗室，以便对被干燥清洁的物体进行搅动。 从清洗室排出的液态二氧化碳返回到储罐。 A仍然设置在一个储罐内，并在从腔室返回时接收污染的液体二氧化碳。 储罐中的压力会导致静液中的脏污液体二氧化碳沸腾。 气体被传送到第三罐。 可以使用第三罐来最初对清洁室进行加压。 该系统还包括用于将溶剂添加剂注入液体二氧化碳中的分配器。 也可以调整系统的搅拌压力，使得精细的物体可以被清洁而没有损坏。

    Shaft seal system with leak management
    3.
    发明授权
    Shaft seal system with leak management 失效
    轴密封系统具有泄漏管理

    公开(公告)号：US06474115B1

    公开(公告)日：2002-11-05

    申请号：US09716098

    申请日：2000-11-17

    申请人： A. Duane Preston ,  Jon R. Turner

    发明人： A. Duane Preston ,  Jon R. Turner

    IPC分类号： D06F4302

    CPC分类号： D06F43/007 ,  D06F43/00 ,  D06F43/02 ,  D06F2700/00

    摘要： A cartridge housing surrounds a shaft for rotating a basket within the pressurized cleaning vessel of a dry cleaning system that utilizes liquid carbon dioxide as a solvent. Primary and secondary seals are disposed between the cartridge housing and the shaft in a spaced relationship so that a primary chamber is defined. A final seal is also disposed between the cartridge housing and the shaft and spaced from the secondary seal so that a secondary chamber is defined. The primary chamber houses an inboard bearing while the secondary chamber houses an outboard and thrust bearings. Primary and secondary tanks containing supplies of oil communicate with the primary and secondary chambers, respectively, via their head spaces and wet sides. As a result, the bearings are lubricated. Solvent leaking across the primary seal is vaporized and delivered to the head space of the primary tank so that the pressure differential across the primary seal is reduced. The secondary tank operates in a similar fashion for solvent leaks across the secondary seal. Vaporized solvent from the tank head spaces is routed back to the cleaning vessel when the cleaning vessel de-pressurizes.

    摘要翻译： 盒壳体围绕轴，用于使利用液体二氧化碳作为溶剂的干洗系统的加压清洁容器内的篮子旋转。 主密封件和次密封件以间隔的关系设置在墨盒壳体和轴之间，从而限定了主腔室。 最后的密封件也设置在药筒外壳和轴之间并且与辅助密封件间隔开，从而限定了第二腔室。 主室容纳内侧轴承，而次级室容纳外侧和推力轴承。 含有油品的初级和二级容器分别通过其头部空间和湿侧与主室和次室连通。 因此，轴承是润滑的。 渗透主密封件的溶剂蒸发并输送到主槽的顶部空间，从而减小了主密封件两端的压力差。 次级罐以类似的方式工作，用于穿过次级密封件的溶剂泄漏。 当清洁容器减压时，来自罐头空间的蒸发溶剂被送回清洁容器。

    Carbon dioxide dry cleaning system
    4.
    发明授权
    Carbon dioxide dry cleaning system 有权

    公开(公告)号：US06442980B1

    公开(公告)日：2002-09-03

    申请号：US09835168

    申请日：2001-04-13

    申请人： A. Duane Preston ,  Jon R. Turner ,  Charles Svoboda

    发明人： A. Duane Preston ,  Jon R. Turner ,  Charles Svoboda

    IPC分类号： D06F4308

    摘要： A carbon dioxide dry cleaning system features a pair of liquid carbon dioxide storage tanks in communication with a compressor. A sealed cleaning chamber contains the objects to be cleaned. By selectively pressurizing the storage tanks with the compressor, liquid carbon dioxide is made to flow to the cleaning chamber through cleaning nozzles so as to provide agitation of the objects being dry cleaned. Liquid carbon dioxide displaced from the cleaning chamber returns to the storage tanks. In an alternative embodiment, a single storage tank is pressurized via a compressor with gas from the cleaning chamber so that liquid solvent from the storage tank travels to the cleaning chamber through nozzles. The objects in the cleaning chamber are agitated by a rotating basket. After a prewash cycle, liquid solvent from the cleaning chamber is directed to a still. The liquid solvent in the still is boiled through a connection with the head space of the cleaning chamber. The still may be positioned within the storage tank and partially surrounded with a shroud for efficient heating of the still with gas from the cleaning chamber. During agitation, liquid solvent from the cleaning chamber may be heated and filtered.

    High pressure chamber door seal with leak detection system
    5.
    发明授权
    High pressure chamber door seal with leak detection system 失效
    高压室门密封带泄漏检测系统

    公开(公告)号：US06349947B1

    公开(公告)日：2002-02-26

    申请号：US09338870

    申请日：1999-06-23

    申请人： Jon R. Turner ,  A. Duane Preston

    发明人： Jon R. Turner ,  A. Duane Preston

    IPC分类号： F16J1510

    CPC分类号： D06F43/00 ,  Y10S277/91

    摘要： A high pressure chamber opening is equipped with a cylindrical element that features a circumferential flange. The circumferential flange features concentrically positioned primary and secondary O-ring seals that surround the chamber opening. A door is clamped to the circumferential flange and over the opening and the circumferential seals. As a result, the opening is sealed and an annular passage is formed between the seals. A port is formed in the cylindrical element so that the annular passage may communicate with a pressure switch. The port also communicates with a relief valve. The pressure switch signals the system operator when the pressure in the annular passage rises due to failure of the primary O-ring. The relief valve vents the annular passage when the pressure therein increases to a level where damage to the secondary O-ring could occur. The relief valve setting is such that the pressure within the annular passage may rise to a level where dry ice formation is prevented.

    摘要翻译： 高压室开口配备有圆周凸缘的圆柱形元件。 周向凸缘具有围绕腔室开口的同心定位的主O形密封圈和次O形环密封件。 门被夹紧在周向凸缘上，并且在开口和周向密封件上。 结果，开口被密封，并且在密封件之间形成环形通道。 端口形成在圆筒形元件中，使得环形通道可与压力开关连通。 该端口还与安全阀连通。 当环形通道中的压力由于主O形环的故障而升高时，压力开关向系统操作员发信号。 当其中的压力增加到可能发生对次级O形环的损坏的水平时，安全阀将环形通道排出。 安全阀设置使得环形通道内的压力可以上升到防止干冰形成的水平。

    Carbon dioxide dry cleaning system
    6.
    发明授权
    Carbon dioxide dry cleaning system 失效
    二氧化碳干洗系统

    公开(公告)号：US5904737A

    公开(公告)日：1999-05-18

    申请号：US979060

    申请日：1997-11-26

    申请人： A. Duane Preston ,  Jon R. Turner

    发明人： A. Duane Preston ,  Jon R. Turner

    IPC分类号： D06F43/00 ,  D06F43/08 ,  B08B3/10

    CPC分类号： D06F43/081 ,  D06F43/00

    摘要： A carbon dioxide dry cleaning system features a pair of liquid carbon dioxide storage tanks in communication with a compressor. A sealed cleaning chamber contains the objects being dry cleaned. By selectively pressurizing the storage tanks with the compressor, liquid carbon dioxide is made to flow to the cleaning chamber through cleaning nozzles so as to provide agitation of the objects being dry cleaned. Liquid carbon dioxide displaced from the cleaning chamber returns to the storage tanks. A still is disposed within one of the storage tanks and receives soiled liquid carbon dioxide as it is returned from the chamber. The pressure in the storage tank causes the soiled liquid carbon dioxide in the still to boil off. The gas is communicated to a third tank.

    摘要翻译： 二氧化碳干洗系统具有与压缩机连通的一对液体二氧化碳储存罐。 密封的清洁室包含被干燥清洁的物体。 通过用压缩机选择性地对储罐进行加压，使二氧化碳液体通过清洁喷嘴流到清洗室，以便对被干燥清洁的物体进行搅动。 从清洗室排出的液态二氧化碳返回到储罐。 A仍然设置在一个储罐内，并在从腔室返回时接收污染的液体二氧化碳。 储罐中的压力会导致静液中的脏污液体二氧化碳沸腾。 气体被传送到第三罐。

    Support system for cryogenic vessels
    7.
    发明授权
    Support system for cryogenic vessels 失效
    低温容器支撑系统

    公开(公告)号：US5651473A

    公开(公告)日：1997-07-29

    申请号：US974950

    申请日：1992-11-12

    申请人： A. Duane Preston ,  Timothy A. Neeser

    发明人： A. Duane Preston ,  Timothy A. Neeser

    IPC分类号： F17C13/00

    CPC分类号： F17C13/001 ,  F17C2201/0109 ,  F17C2201/035 ,  F17C2203/018 ,  F17C2203/0391 ,  F17C2203/0629 ,  F17C2205/0305 ,  F17C2205/0391 ,  F17C2209/221 ,  F17C2223/0161 ,  F17C2223/047 ,  F17C2250/0413 ,  F17C2250/043 ,  Y10S220/901

    摘要： The invention consists of an outer jacket surrounding and spaced from an inner tank to create an insulated space therebetween. The inner tank closely conforms to the outer jacket such that the insulation chamber is substantially uniform and the capacity of the inner tank is increased. An insulated support assembly that extends into the inner tank allows communication between the exterior of the vessel and the inner tank for pipes, pressure gauges and the like. The support assembly allows for a long insulated path without reducing the capacity of the tank to the same extent as the prior art devices.

    摘要翻译： 本发明由外护套组成，其围绕并与内槽隔开以在它们之间产生绝缘空间。 内罐紧密地与外护套相符，使得绝缘室基本上均匀并且内罐的容量增加。 延伸到内罐中的绝缘支撑组件允许容器的外部和用于管道，压力计等的内部容器之间的连通。 支撑组件允许长的绝缘路径，而不会降低罐的容量与现有技术装置相同的程度。

    Transfer system for cryogenic liquids
    8.
    发明授权
    Transfer system for cryogenic liquids 失效
    低温液体转移系统

    公开(公告)号：US6044647A

    公开(公告)日：2000-04-04

    申请号：US906512

    申请日：1997-08-05

    申请人： Thomas K. Drube ,  Paul A. Drube ,  A. Duane Preston

    发明人： Thomas K. Drube ,  Paul A. Drube ,  A. Duane Preston

    IPC分类号： F17C9/00 ,  F17C7/02 ,  F25B19/00

    CPC分类号： F17C7/02 ,  F17C2221/033 ,  F17C2223/0161 ,  F17C2223/033 ,  F17C2225/0161 ,  F17C2225/033 ,  F17C2227/0114 ,  F17C2227/0393 ,  F17C2250/01 ,  F17C2250/032 ,  F17C2260/02 ,  F17C2265/065 ,  F17C2270/0168 ,  F28C3/06

    摘要： A cryogenic liquid transfer system, for servicing a use device, releases stored cryogen from a bulk storage tank to a gas supply tank and a dispenser tank. The liquid cryogen in the gas supply tank is circulated through a circuit that includes a heat exchanger and the gas thus generated is returned to the gas supply tank so as to pressurize it. The pressurized liquid cryogen is released from the gas supply tank so that it flows through a vaporizer. The gas produced by the vaporizer is bubbled through the liquid cryogen in the dispenser tank so as to raise its temperature and pressure to the level required by the use device being serviced. Gas from the vaporizer is then delivered to the space above the liquid cryogen in the dispenser tank to as to create a pressure head that will cause the liquid cryogen to flow to the use device upon release. A venturi is connected to the tubing between the gas supply tank and the dispenser tank and is used to reduce the pressure in the bulk storage tank.

    摘要翻译： 用于维修使用装置的低温液体输送系统将存储的冷冻剂从大容量储存箱释放到气体供应罐和分配器罐。 气体供给槽中的液体冷冻剂通过包括热交换器的回路循环，由此产生的气体返回到气体供给箱以对其进行加压。 加压液体冷冻剂从气体供应罐释放，使其流过蒸发器。 由蒸发器产生的气体鼓泡通过分配器罐中的液体冷冻剂，以将其温度和压力升高到被维修的使用装置所要求的水平。 然后将来自蒸发器的气体输送到分配器罐中液体冷冻剂上方的空间，以产生压力头，该压头将在释放时使液体冷冻剂流到使用装置。 文丘里管连接到气体供应罐和分配器罐之间的管道，并用于降低大容量储罐中的压力。