公开(公告)号：US09341277B2

公开(公告)日：2016-05-17

申请号：US14381974

申请日：2013-03-07

Applicant: Waters Technologies Corporation

Inventor： Joshua A. Shreve ,  Paul Keenan ,  John Maillet, Jr. ,  Ryan Hill

IPC: F16K27/02 ,  F16K1/38 ,  G01N30/20 ,  G01N30/32 ,  F16K31/06 ,  B01D15/40

CPC classification number: F16K27/02 ,  B01D15/40 ,  F16K1/38 ,  F16K31/0655 ,  G01N30/20 ,  G01N30/32 ,  Y10T137/0486 ,  Y10T137/6065

Abstract: Exemplary embodiments are directed to apparatus, systems and methods used in connection with a needle valve device operating in a pressurized flow system. The apparatus, systems and methods provide for automatic positioning of a needle relative to a seat in the needle valve device to provide consistent calibration with minimal user interaction after a maintenance event or upon a start-up of the pressurized flow system. The apparatus, systems and methods utilize a calibration collar secured to a shaft of an actuator within the needle valve device. The calibration collar includes one or more locking mechanism and a spring.

Abstract translation: 示例性实施例涉及与在加压流动系统中操作的针阀装置结合使用的装置，系统和方法。 该设备，系统和方法提供针相对于针阀装置中的座的自动定位，以在维护事件之后或在启动加压流动系统时提供一致的校准，同时最小的用户相互作用。 该装置，系统和方法利用固定在针阀装置内的致动器的轴上的校准轴环。 校准轴环包括一个或多个锁定机构和弹簧。

公开(公告)号：US10399031B2

公开(公告)日：2019-09-03

申请号：US14381981

申请日：2013-03-07

Applicant: Waters Technologies Corporation

Inventor： Joshua A. Shreve ,  John Maillet, Jr. ,  Steven D. Trudeau ,  Paul Linderson

IPC: B01D15/16 ,  B01D15/40 ,  B01D53/04 ,  G01N30/02 ,  G01N30/32 ,  G01N30/36 ,  G01N30/30 ,  G05D16/00 ,  B01D15/10

Abstract: Exemplary embodiments of the present disclosure include systems, apparatuses, and methods that are directed to controlling pressure in a pressurized flow system, such as a CO2-based chromatography system or other pressurized flow systems. Exemplary embodiments of the present disclosure comprise one or more apparatuses, systems or methods for implementing multiple pressure regulators to control pressure. In addition to providing pressure control, apparatuses, systems and methods described herein dampen damaging thermal effects caused by pressure drops of a mobile phase including CO2.

公开(公告)号：US09381447B2

公开(公告)日：2016-07-05

申请号：US14381975

申请日：2013-03-07

Applicant: Waters Technologies Corporation

Inventor： Joshua A. Shreve ,  Paul Linderson ,  John Maillet, Jr. ,  John Angelosanto

IPC: B01D15/10 ,  G01N30/32 ,  B01D15/16 ,  B01D15/40 ,  G05D16/20

CPC classification number: B01D15/163 ,  B01D15/10 ,  B01D15/40 ,  G01N30/32 ,  G01N2030/328 ,  G05D16/2013

Abstract: Exemplary embodiments of the present disclosure relate to systems and methods comprising a dynamic pressure regulator and a force balance needle that regulate pressure changes due to flow or composition changes in a pressurized flow system, such as, for example, a CO2-based chromatography system.

Abstract translation: 本公开的示例性实施例涉及包括动态压力调节器和力平衡针的系统和方法，所述动态压力调节器和力平衡针调节由于加压流系统（例如基于CO 2的色谱系统）中的流动或组成变化引起的压力变化。