公开(公告)号：US06250164B1

公开(公告)日：2001-06-26

申请号：US08798077

申请日：1997-02-12

申请人： Richard J. O'Brien ,  Richard A. Sorich ,  Alan Wirbisky

发明人： Richard J. O'Brien ,  Richard A. Sorich ,  Alan Wirbisky

IPC分类号： G01L702

CPC分类号： G01L7/02 ,  G01L9/0002

摘要： A method of sensing fluid pressure in which a deformable tube provides an accessible and substantially flat section. Deflection of the flat section reflects line pressure. In one embodiment, a fluid pressure sensing apparatus comprises a deformable tube for carrying fluid and at least one constraint member comprising an inner surface and a pressure sensing opening. The inner surface comprises a substantially flat portion and a constraint portion. The tube is positioned against the inner surface and constrained by the constraint portion such that a portion of the tube is deformed against the substantially flat portion of the inner surface. This produces a substantially flat section of the tube adjacent to, and accessible through, the pressure sensing opening. Similarly, a method of manufacturing a fluid pressure sensing apparatus comprises the steps of: providing a deformable tube, and constraining the tube to provide an accessible and substantially flat section of the tube. The method and apparatus are suitable for cardioplegia safety systems and other systems involving a shear sensitive fluid such as blood.

摘要翻译： 一种感测流体压力的方法，其中可变形管提供可接近且基本上平坦的部分。 扁平部分的偏转反映了线路压力。 在一个实施例中，流体压力感测装置包括用于承载流体的可变形管和包括内表面和压力感测开口的至少一个约束构件。 内表面包括基本上平坦的部分和约束部分。 管被抵靠内表面定位并被约束部分约束，使得管的一部分变形抵抗内表面的基本上平坦的部分。 这产生与压力感测开口相邻并且可通过压力感测开口的管的基本平坦的部分。 类似地，制造流体压力感测装置的方法包括以下步骤：提供可变形管，并限制管以提供管的可接近且基本上平坦的部分。 该方法和装置适用于心麻痹安全系统和涉及剪切敏感流体如血液的其它系统。

公开(公告)号：US06813955B2

公开(公告)日：2004-11-09

申请号：US10344027

申请日：2003-02-06

申请人： John Paul McKelvey ,  David Charles Tyrer

发明人： John Paul McKelvey ,  David Charles Tyrer

IPC分类号： G01L702

CPC分类号： E21D21/008 ,  E04C5/122 ,  E04C5/125 ,  E04G21/121 ,  E21D21/02

摘要： There is provided a tensioning device that includes an inflatable pressure vessel, a bellows arrangement, and a valve. The pressure vessel has two superimposed major wall components fabricated from sheet metal and further has an aperture which passes through the two superimposed major wall components. The aperture has an axial direction. The bellows arrangement is connected to and located between the two superimposed major wall components at and around the aperture. The valve is for filling the pressure vessel with liquid under pressure to cause the pressure vessel to be inflated in the axial direction of the aperture.

摘要翻译： 提供了一种张紧装置，其包括可膨胀的压力容器，波纹管装置和阀。 压力容器具有由金属板制成的两个重叠的主壁组件，并且还具有穿过两个重叠的主壁组件的孔。 孔具有轴向。 波纹管布置连接到并位于孔周围和周围的两个重叠的主壁部件之间。 阀用于在压力下用液体填充压力容器，以使压力容器在孔的轴向方向上膨胀。

公开(公告)号：US06691580B1

公开(公告)日：2004-02-17

申请号：US10224033

申请日：2002-08-20

申请人： William D. Bertelsen

发明人： William D. Bertelsen

IPC分类号： G01L702

CPC分类号： G01M5/005

摘要： A testing fixture assembly induces a compound bend deflection in a test panel upon relative movement of opposing pressure applying parts. A panel holder has restraint members for receiving the edges of a test panel and a measuring device has an element for measuring the compound deflection induced in the panel. A liquid filled bladder formed of a pair of opposed pliant membranes is partitioned by a non-pliant plate and a bladder frame structure sandwiches the perimeter edge portions of the plate and membranes in tightly clamped relationship.

摘要翻译： 测试夹具组件在相对的压力施加部件的相对运动时在测试面板中引起复合弯曲偏转。 面板支架具有用于接收测试面板的边缘的约束构件，并且测量装置具有用于测量在面板中感应的复合偏转的元件。 由一对相对的柔性膜形成的液体填充的气囊由非柔性板分隔开，并且气囊框架结构以紧密夹紧的关系夹住板和膜的周边边缘部分。

公开(公告)号：US06481292B1

公开(公告)日：2002-11-19

申请号：US09472708

申请日：1999-12-24

申请人： Sanford Reich

发明人： Sanford Reich

IPC分类号： G01L702

CPC分类号： A61B5/6865 ,  A61B5/0215 ,  A61B2560/0257

摘要： A remote pressure sensor includes a probe having a chamber for holding a liquid. A flexible membrane is mounted in the probe. A conduit joins a reference cell to the chamber for holding the liquid. And, a reference pressure gauge is operatively joined to the conduit for measuring pressure of the liquid therein for use in referencing a primary pressure sensor through which fluid flows.

摘要翻译： 远程压力传感器包括具有用于保持液体的室的探针。 柔性膜安装在探头中。 导管将参考单元连接到用于保持液体的室。 并且，参考压力计可操作地连接到管道，用于测量其中的液体的压力，以用于参考流体流过的主压力传感器。

公开(公告)号：US06422087B1

公开(公告)日：2002-07-23

申请号：US09352077

申请日：1999-07-14

申请人： Jerry L. Potter

发明人： Jerry L. Potter

IPC分类号： G01L702

CPC分类号： B60N2/0248 ,  B60N2/0232 ,  B60N2/0244 ,  B60N2/66 ,  B60N2/665 ,  B60N2/914 ,  B60N2002/0268

摘要： A variable support mechanism includes a plurality of pneumatic bladders and an electronic control system for controlling the inflation and deflation thereof. Each of the bladders communicates through a valve with a common manifold. The operations of the valves are individually controlled by a microprocessor. A pressure sensor communicates with the manifold and generates electrical signals that are representative of the magnitude of the fluid pressure in the manifold to the microprocessor. The microprocessor is also connected to a vent valve that provides selective fluid communication between the manifold and the atmosphere. The microprocessor is further connected to a pressure valve that provides selective fluid communication between the manifold and a pump. Initially, the magnitude of the pressure in each of the bladders is sampled, measured, and stored by the electronic control system. Then, the measured pressure readings from the bladders are compared with respective target values and, in response to that comparison, are designated as being either (1) Too Low, (2) Too High, or (3) Within Limits. The bladders that have been identified as being Too Low are inflated until they have achieved their respective target values, and the bladders that have been identified as being Too High are deflated until they have achieved their respective target values. The electronic control system identifies the user of the vehicular seat assembly and, in response thereto, customizes the operation of one or more controlled devices in the vehicle. Lastly, the electronic control system is placed an inactive mode, wherein no action occurs for a predetermined length of time. When the predetermined length of time expires, the algorithm branches back to the first routine discussed above, wherein this cycle is repeated.

摘要翻译： 可变支撑机构包括多个气动气囊和用于控制其充气和收缩的电子控制系统。 每个气囊通过具有公共歧管的阀连通。 阀的操作由微处理器分别控制。 压力传感器与歧管进行通信，并产生代表微处理器歧管中流体压力大小的电信号。 微处理器还连接到排气阀，其在歧管和大气之间提供选择性的流体连通。 微处理器还连接到压力阀，该压力阀在歧管和泵之间提供选择性的流体连通。 最初，每个气囊中的压力的​​大小由电子控制系统进行采样，测量和存储。 然后，将来自气囊的测量的压力读数与相应的目标值进行比较，并且响应于该比较，被指定为（1）过低，（2）过高或（3）限制内。 被认定为过低的气囊膨胀至达到各自的目标值为止，被认定为过高的气囊被放气，直到达到各自的目标值为止。 电子控制系统识别车座组件的用户，并且响应于此，定制车辆中的一个或多个受控设备的操作。 最后，电子控制系统处于非活动模式，其中在预定时间长度内不发生动作。 当预定时间长度到期时，算法分支回到上面讨论的第一程序，其中重复该循环。