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    • 92. 发明授权
    • Trailer dumper
    • 拖车自卸车
    • US5344271A
    • 1994-09-06
    • US822612
    • 1992-01-14
    • Kenneth A. BratlieDavid J. Miller
    • Kenneth A. BratlieDavid J. Miller
    • B65G67/40B65G67/30
    • B65G67/30
    • A portable low-profile tipper for dumping the contents from a trailer containing a dumpable material, includes a towable elongated and angled frame having a portion resting on the ground during dumping for greater stability. A deck is pivotally attached at an elevated position to the frame back end. The deck has a backstop for positioning the trailer during dumping. Actuators raise and lower the deck to dump the trailer contents. The tipper has a chute with fixed and pivoting components cooperating to guide the dumpable material from the trailer past the frame back end. Front and back stabilizers extend outwardly from the frame. The front stabilizers lift and lower the frame front end between a low-profile dumping position and a raised towing position. A method of successively removing the contents from a plurality of trailers using the tipper is also provided.
    • 用于从含有可倾倒材料的拖车中倾倒内容物的便携式小型翻斗机包括可倾斜的细长且成角度的框架,其具有在倾倒期间搁置在地面上的部分以获得更大的稳定性。 甲板在提升位置枢转地附接到框架后端。 在倾倒期间,甲板上有一个用于定位拖车的后挡板。 执行器提升和降低甲板以转储拖车内容物。 翻斗具有具有固定和枢转部件的滑槽,其协作以将可倾倒材料从拖车引导通过框架后端。 前后稳定器从框架向外延伸。 前稳定器提升和降低框架前端在低轮廓倾倒位置和抬起的牵引位置之间。 还提供了使用自卸车从多个拖车中连续地移除内容物的方法。
    • 94. 发明授权
    • Supercritical fluid chromatography injector and the method for using the
same
    • 超临界流体色谱注射器及其使用方法
    • US4967590A
    • 1990-11-06
    • US408609
    • 1989-09-18
    • David J. MillerSteven B. Hawthorne
    • David J. MillerSteven B. Hawthorne
    • G01N30/02G01N30/16G01N30/18G01N30/20
    • G01N30/20G01N2030/165G01N30/02G01N30/18
    • An injector for use with a capillary supercritical fluid chromatography (SFC) apparatus includes an operable four-port switching valve having a body portion and a rotor rotatably mounted within the body portion. The rotor has a hole therethrough which will selectively register with pairs of aligned ports. Thus, the rotor is rotatable between a loading position, wherein a first and third port are in communication, and a chromatographic position, wherein a second and fourth port are in communication. A first tubular member extends from the third port and is connected to a retention gap, which is in turn connected to an end of a capillary SFC column. A bypass tube connects the fourth port to the first tubular member. The loading position of the rotor and the first tubular member form a straight pathway to permit a needle to be inserted therethrough into the retention gap to inject a sample. A method is also disclosed whereby said injector permits the venting of a sample solvent from the injector by cycling the rotor, between the chromatographic and loading positions for predetermined time intervals.
    • 用于毛细管超临界流体色谱(SFC)装置的注射器包括可操作的四端口切换阀,其具有主体部分和可旋转地安装在主体部分内的转子。 转子具有穿过其中的孔,其将选择性地对准成对的对准端口。 因此,转子可在其中第一和第三端口连通的装载位置和色谱位置之间旋转,其中第二和第四端口连通。 第一管状构件从第三端口延伸并连接到保持间隙,保持间隙又连接到毛细管SFC柱的端部。 旁通管将第四端口连接到第一管状构件。 转子和第一管状部件的装载位置形成直线路径,以允许针穿过其插入保持间隙中以注射样品。 还公开了一种方法,其中所述喷射器允许通过在色谱和装载位置之间循环转动预定时间间隔来从喷射器排出样品溶剂。