Method for leak testing and leak testing apparatus

    公开(公告)号:US20060081036A1

    公开(公告)日:2006-04-20

    申请号:US11267190

    申请日:2005-11-07

    申请人: Martin Lehmann

    发明人: Martin Lehmann

    IPC分类号: G01M3/02 G01L27/00

    摘要: For leak testing closed containers (9) which are filled with a filling product containing at least one liquid component the container is introduced in a test cavity (1) which is evacuated at least down to vapour pressure of that liquid component. The pressure in the surrounding of the container (9) and thus within test cavity (1) is monitored. Monitoring is performed by a vacuum pressure sensor (7), whereas lowering pressure surrounding the container (9) is performed by a vacuum pump (5). Leakage is detected by monitoring a pressure change in the surrounding of the container which is due to evaporation of liquid emerging from a leak and being evaporated in the low pressure surrounding.

    Method for leak testing and leak testing apparatus
    22.
    发明授权
    Method for leak testing and leak testing apparatus 失效
    泄漏检测和泄漏检测装置的方法

    公开(公告)号:US07000456B2

    公开(公告)日:2006-02-21

    申请号:US10950512

    申请日:2004-09-28

    申请人: Martin Lehmann

    发明人: Martin Lehmann

    IPC分类号: G01M3/32 G01M3/20 B08B21/00

    摘要: For leak testing closed containers (9) which are filled with a filling product containing at least one liquid component the container is introduced in a test cavity (1) which is evacuated at least down to vapour pressure of that liquid component. The pressure in the surrounding of the container (9) and thus within test cavity (1) is monitored. Monitoring is performed by a vacuum pressure sensor (7), whereas lowering pressure surrounding the container (9) is performed by a vacuum pump (5). Leakage is detected by monitoring a pressure change in the surrounding of the container which is due to evaporation of liquid emerging from a leak and being evaporated in the low pressure surrounding.

    摘要翻译: 对于密封容器(9)的泄漏测试,其中填充有包含至少一种液体组分的填充产品,容器被引入至少抽真空至该液体组分的蒸气压的测试空腔(1)中。 监测容器(9)周围并因此在测试腔(1)内的压力。 通过真空压力传感器(7)进行监视,而通过真空泵(5)执行围绕容器(9)的降低压力。 通过监测容器周围的压力变化来检测泄漏,这是由于泄漏出现的液体蒸发而在低压环境中蒸发。

    Method for testing containers, use of the method, and a testing device

    公开(公告)号:US20050115306A1

    公开(公告)日:2005-06-02

    申请号:US11032029

    申请日:2005-01-11

    申请人: Martin Lehmann

    发明人: Martin Lehmann

    IPC分类号: G01M3/32 G01M3/34

    CPC分类号: G01M3/3281 Y10T29/49771

    摘要: A method and device for testing containers, the method calling for a difference in pressure to be generated between the pressure inside the container and the pressure immediately surrounding the container, the behavior of one of these pressures permitting the gas tightness of the container to be assessed. A pressure value is stored and subsequently compared with one of the pressures, the stored pressure value being stored electronically and compared with at least one value of the output signal from a pressure sensor. The container is housed in an enclosure which is connected to a pressure or suction line, and a pressure-value storage unit, a comparator unit and a pressure sensor are associated with the pressure or suction line.

    Phytases
    24.
    发明授权
    Phytases 失效
    植酸酶

    公开(公告)号:US06720174B1

    公开(公告)日:2004-04-13

    申请号:US09488265

    申请日:2000-01-20

    申请人: Martin Lehmann

    发明人: Martin Lehmann

    IPC分类号: C12N916

    CPC分类号: C07H21/04 C12N9/16

    摘要: This invention relates to improved phytases, preferably phytases of an increased thermostability, and a process of producing them. In particular, stabilizing amino acid mutations are introduced into a homologous protein, or the active site of a phytase is replaced in part or in toto. The corresponding DNA sequences and methods of preparing them are also disclosed, as are methods of producing the improved phytases, and the use thereof. Specific variants of Aspergillus fumigatus phytase and of consensus phytases are disclosed.

    摘要翻译: 本发明涉及改进的植酸酶,优选植酸酶的增加的热稳定性,以及它们的生产方法。 特别地,将稳定的氨基酸突变引入同源蛋白质中,或者植酸酶的活性位点被部分或者替代。 还公开了相应的DNA序列及其制备方法,以及生产改良的植酸酶的方法及其用途。 公开了烟曲霉植酸酶和共有植酸酶的具体变体。

    Method of and apparatus for checking the volume of containers
    25.
    发明授权
    Method of and apparatus for checking the volume of containers 失效
    用于检查容器体积的方法和装置

    公开(公告)号:US5760294A

    公开(公告)日:1998-06-02

    申请号:US605646

    申请日:1996-02-22

    申请人: Martin Lehmann

    发明人: Martin Lehmann

    摘要: A method of checking the volume of containers is disclosed according to which a gas is fed into a volume which is correlated to the volume of the respective container and a signal which depends from the fed amount of gas is evaluated as signal indicative of the volume of the container. In order to substantially reduce the time of the measuring cycle at such a method a gas is fed to the volume which is correlated to the volume of the container at a controlled flow, i.e. the mass flow of the gas per unit of time is pre-set in a controlled manner such that it is possible to drastically reduce the time spans during which it is necessary to wait due to transient processes and a chamber which must be loaded in advance will become superfluous.

    摘要翻译: 公开了一种检查容器体积的方法,根据该方法,将气体输入到与相应容器的体积相关的体积中,并且将从供给的气体量取决于的信号被评估为指示体积的信号 容器 为了在这种方法下大幅度地减少测量循环的时间,将气体以可控制的流量供给到与容器的体积相关的体积,即每单位时间内的气体质量流量预先 以受控的方式设置,使得可以显着减少由于瞬时过程而需要等待的时间跨度,并且必须预先加载的室将变得多余。

    Method and apparatus for leak testing a hollow body
    26.
    发明授权
    Method and apparatus for leak testing a hollow body 失效
    用于空心体泄漏测试的方法和装置

    公开(公告)号:US5239859A

    公开(公告)日:1993-08-31

    申请号:US693586

    申请日:1991-04-30

    申请人: Martin Lehmann

    发明人: Martin Lehmann

    摘要: A method and apparatus for leak testing a hollow body wherein the hollow body is placed in a test chamber. The hollow body is exposed to one of a positive or negative differential pressure between an internal pressure of the hollow body and a pressure in the test chamber. A pressure prevailing in the test chamber is tapped off from the test chamber at two points in time, with a signal being generated of a pressure differential between the values of the prevailing pressure in the test chamber at the two points of time. The tightness or change in volume of the hollow body is determined in dependence upon the generated pressure differential signal.

    摘要翻译: 一种用于对中空体进行泄漏测试的方法和装置,其中中空体放置在测试室中。 空心体暴露于中空体的内部压力与试验室的压力之间的正或负压差之一。 测试室中的压力在两个时间点从测试室中分离出来,并且在两个时间点产生测试室中主要压力值之间的压力差的信号。 中空体的密度或体积变化根据产生的压差信号来确定。

    Process and apparatus for volume-testing a hollow body
    27.
    发明授权
    Process and apparatus for volume-testing a hollow body 失效
    用于体积测试中空体的方法和装置

    公开(公告)号:US5170660A

    公开(公告)日:1992-12-15

    申请号:US551792

    申请日:1990-07-12

    申请人: Martin Lehmann

    发明人: Martin Lehmann

    IPC分类号: B07C5/34 G01F17/00 G01M3/32

    摘要: A closed container is placed in a test chamber for the purpose of testing the container's tightness. A pre-chamber is brought to a desired pressure, then connected with the test chamber. The pressure in the test chamber is stored at a certain point in time on the input side of a differential pressure sensor and then the plot of the test chamber pressure is compared with the reference pressure thus formed. Any pressure compensation which occurs if leaks are present in the hollow body is recorded as an indication of such leakage.

    摘要翻译: 为了测试容器的紧密度,将一个密封的容器放置在测试室中。 将预制室带到所需的压力,然后与测试室连接。 试验箱中的压力在差压传感器的输入侧的某个时间点被储存,然后将试验室压力的曲线与由此形成的参考压力进行比较。 如果在中空体中存在泄漏,则发生任何压力补偿作为这种泄漏的指示。

    Test device, in particular for bottle-shaped containers as well as
procedure for testing same
    28.
    发明授权
    Test device, in particular for bottle-shaped containers as well as procedure for testing same 失效
    测试装置,特别是瓶形容器以及测试装置的程序

    公开(公告)号:US4768372A

    公开(公告)日:1988-09-06

    申请号:US54271

    申请日:1987-05-04

    申请人: Martin Lehmann

    发明人: Martin Lehmann

    摘要: The test device (7) serves in particular for testing bottle-shaped containers (4), and is in the form of a piston/cylinder assembly. It has two pistons (41, 53) in order to test simultaneously or consecutively two properties of the container (4), while the position of the container (4) and cylinders (30, 31) remains the same. The two pistons (41, 53) can be operationally connected by a piston rod (42). The piston strokes are different. Containers which are to be filled with a liquid material and are preferably made of plastic can be tested in this way before they are filled with the material thus making it possible to locate quickly and unambiguously any containers which are to be rejected owing to their dimensions, resistance to crushing, sealing property and so on, before the filling process takes place.

    摘要翻译: PCT No.PCT / CH86 / 00121 Sec。 371日期:1987年5月4日 102(e)日期1987年5月4日PCT提交1986年8月26日PCT公布。 第WO87 / 01449号公报 日期1987年3月12日。试验装置(7)特别用于测试瓶形容器(4),并且是活塞/气缸组件的形式。 为了同时或连续地测试容器(4)的两个特性,同时容器(4)和气缸(30,31)的位置保持相同,它具有两个活塞(41,53)。 两个活塞(41,53)可以通过活塞杆(42)可操作地连接。 活塞冲程不同。 要填充液体材料并且优选由塑料制成的容器可以在其被填充材料之前以这种方式被测试,从而使得可以快速且明确地定位任何由于其尺寸而被拒绝的容器, 在填充过程发生之前,耐破碎,密封性能等。

    Vibration damper for a drivetrain
    29.
    发明授权
    Vibration damper for a drivetrain 有权
    传动系减振器

    公开(公告)号:US09377059B2

    公开(公告)日:2016-06-28

    申请号:US14238140

    申请日:2012-08-04

    IPC分类号: F16D3/76 F16D3/68 F16F15/124

    CPC分类号: F16D3/68 F16F15/1245

    摘要: A vibration damper and a drive shaft comprising a vibration damper having a small radial extent is provided. A first shaft part is provided with a sleeve and a second shaft part is provided with an inner part which extends axially into the sleeve. The sleeve and the inner part include longitudinal rotary drivers that engage negative profiles of an damping part which is elastically deformable in the direction of shaft rotation and includes at least one decoupling ring and at least one pair of rotation limiting rings.

    摘要翻译: 提供了一种减震器和包括具有小径向范围的减振器的驱动轴。 第一轴部分设置有套筒,第二轴部分设置有轴向延伸到套筒中的内部部分。 套筒和内部包括纵向旋转驱动器,其接合阻尼部件的负型轮廓,所述阻尼部件可在轴旋转方向上弹性变形,并且包括至少一个解耦环和至少一对旋转限制环。

    X-ray detection of flaws in containers and/or in their contents
    30.
    发明授权
    X-ray detection of flaws in containers and/or in their contents 有权
    X射线检测容器和/或其内容物中的缺陷

    公开(公告)号:US09278378B2

    公开(公告)日:2016-03-08

    申请号:US14405875

    申请日:2012-06-13

    申请人: Martin Lehmann

    发明人: Martin Lehmann

    摘要: Method and system for x-ray detection of flaws in containers or their contents wherein containers are conveyed on a circular path around a central axis upon which an x-ray source is situated below the plane of the base of the containers. The x-ray source emits x-ray radiation obliquely upwards through the containers to a plurality of imaging x-ray detectors. Analysis of the images provided by these x-ray detectors determines the presence of a flaw in a container or its contents and is used to command a rejection mechanism to reject the container in question.

    摘要翻译: 用于x射线检测容器或其内容物中的瑕疵的方法和系统,其中容器在围绕中心轴线的圆形路径上被输送,在所述中心轴线上X射线源位于容器底部平面的下方。 x射线源将X射线辐射通过容器向上倾斜向上发射到多个成像x射线检测器。 由这些X射线探测器提供的图像的分析确定容器或其内容物中是否存在缺陷,并且用于命令拒绝机制来拒绝所述容器。