公开(公告)号：US07128089B2

公开(公告)日：2006-10-31

申请号：US10845947

申请日：2004-05-14

申请人： H. Bryan Bente ,  Robert Clark Henderson

发明人： H. Bryan Bente ,  Robert Clark Henderson

IPC分类号： F16K15/00

CPC分类号： F16K31/0655 ,  Y10T137/784 ,  Y10T137/87539

摘要： An electro-mechanical variable fluid flow restrictor includes a support having a passage and a seal surface, a deformable seal that is engageable with the seal surface, and a bias member for exerting an electronically controlled variable bias against the deformable seal. The seal surface includes channels formed in its surface that extend beneath the deformable seal. The bias member can exert a bias sufficient to cause the deformable seal to fill the channels, preventing fluid flow through the channels. When the bias member decreases the bias against the deformable seal, the deformable seal gradually moves out of the channels, allowing fluid flow through the channels, and through the passage in a flow control. The deformable seal does not need to separate from the seal surface to allow fluid flow. Instead, fluid flows through the small, controlled flow areas created when the deformable seal withdraws from the channels.

摘要翻译： 电机械可变流体限流器包括具有通道和密封表面的支撑件，可与密封表面接合的可变形密封件，以及用于对电子控制的可变偏压施加抵靠可变形密封件的偏置构件。 密封表面包括在其表面上形成的在可变形密封件下方延伸的通道。 偏置构件可以施加足以使可变形密封件填充通道的偏压，防止流体流过通道。 当偏置构件减小针对可变形密封件的偏压时，可变形密封件逐渐移出通道，允许流体流过通道，并且在流量控制中通过通道。 可变形密封件不需要与密封表面分离以允许流体流动。 相反，流体流过可变形密封件从通道退出时产生的小的受控流动区域。

公开(公告)号：US5827481A

公开(公告)日：1998-10-27

申请号：US903014

申请日：1997-07-31

申请人： H. Bryan Bente ,  Michael David Glaser

发明人： H. Bryan Bente ,  Michael David Glaser

IPC分类号： G01N1/00 ,  G01N1/14 ,  G01N30/12 ,  G01N30/16 ,  G01N30/88 ,  G01N35/00 ,  G01N35/10

CPC分类号： G01N35/00732 ,  G01N1/14 ,  G01N30/12 ,  G01N1/22 ,  G01N2030/0095 ,  G01N2030/126 ,  G01N2030/8881 ,  G01N2035/00782 ,  G01N30/16 ,  Y10T436/117497 ,  Y10T436/119163 ,  Y10T436/25 ,  Y10T436/2575

摘要： A device for performing sample acquisition and introduction of a selectable quantity of the acquired sample to associated device such as an analytical instrument. The preferred embodiment of a the device includes a reservoir for reserving a quantity of sample, a sipper section having a nozzle for inserting an exposed orifice extending therefrom into a sample aggregation, a pump for forcing a quantity of sample from the sample aggregation through the nozzle and into the reservoir, a metering section having a selectably operable motive force unit and a metering unit for withdrawing a sample quantity to be analyzed from the reservoir and for causing the withdrawn sample quantity to be metered into at least one discrete sample quantity of selectable volume, a vaporization section having a vaporizing chamber for receiving the discrete sample quantity and a vaporizer for optionally causing the volatile components of the discrete sample quantity to be volatilized, and an interface which is connected to the vaporization chamber and adapted for insertion into the carrier fluid stream of the instrument. The vaporization chamber may be pneumatically coupled on demand to a carrier fluid stream whereby the metered or volitalized sample components may be rapidly introduced to the carrier fluid stream so as to effect a sample component/carrier fluid mixture.

摘要翻译： 用于执行样本采集并将所获取的样本的可选择量引入诸如分析仪器的相关装置的装置。 装置的优选实施例包括用于储存一定量样品的储存器，具有用于将从其延伸的暴露孔插入样品聚集体的喷嘴的吸嘴部分，用于迫使来自样品聚集体的量的样品通过喷嘴 并且进入储存器，具有可选择地可操作的动力单元的计量部分和用于从储存器中取出要分析的样本量并将取出的样本量计量到计量的至少一个离散样本量的可选择体积的计量单元 ，具有用于接收离散样品量的蒸发室的蒸发部分和用于任选地使离散样品量的挥发性组分挥发的蒸发器，以及连接到蒸发室并适于插入载体流体的界面 仪器流。 蒸发室可以根据需要气动地耦合到载体流体流，由此可以将计量或运动的样品组分快速引入载体流体流中，以便实现样品组分/载体流体混合物。

公开(公告)号：US4714545A

公开(公告)日：1987-12-22

申请号：US841922

申请日：1986-03-20

申请人： H. Bryan Bente ,  Alan C. Herman ,  Joel Myerson ,  Benjamin G. Shaw ,  Andrew Stefanski

发明人： H. Bryan Bente ,  Alan C. Herman ,  Joel Myerson ,  Benjamin G. Shaw ,  Andrew Stefanski

IPC分类号： G01N30/34 ,  B01D15/08 ,  F04B13/02 ,  F04B49/06 ,  G01N30/32 ,  G01N30/36 ,  G05D11/00 ,  G05D11/13 ,  F04B41/06

CPC分类号： G05D11/132 ,  F04B13/02 ,  F04B49/065 ,  G05D11/001 ,  G01N2030/324 ,  G01N2030/326 ,  G01N30/34 ,  G01N30/36

摘要： A plurality of different liquid solutions are connected to an input of a pump system having at least two displacement chambers and in a manner to control the proportions of each constituent that are taken into each chamber during its intake stroke. The outputs of the chambers are connected to a common liquid output. The chambers are driven by independently controllable motors so that the discharge stroke may be chosen to have some parameters, such as speed profile and duration, that are different than during the intake stroke. As a result, both chambers may simultaneously discharge liquid through the common output, if desired. The proportion of constituents may be made different each time one of the chambers is filled, so the simultaneous discharge of the chambers allows a gradual, carefully controlled change from the mixture of one chamber to that of the other. Thus, the pump system can be operated to provide a combination of low pressure and high pressure mixing of two or more liquid constituents in order to provide a smooth gradient in the output liquid flow. Output liquid flow rate can be controlled by changing the time in which the chamber's volume is reduced, or by controlling the maximum volume of the chamber's displacement, or both. Such a pumping system is especially useful in providing a solvent mixture with a gradually changing composition to a liquid chromatograph column.