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124 条记录 (耗时 0.012 秒)

    Squeezed tube valve
    61.
    发明授权
    Squeezed tube valve 失效
    挤压管阀

    公开(公告)号：US4369951A

    公开(公告)日：1983-01-25

    申请号：US290213

    申请日：1981-08-05

    申请人： Hermann Marsoner ,  Erich Kleinhappl

    发明人： Hermann Marsoner ,  Erich Kleinhappl

    IPC分类号： B01L3/00 ,  F16K7/04 ,  F16L55/14

    CPC分类号： B01L3/567 ,  F16K7/04

    摘要： In a squeezed tube valve which comprises a valve block with a longitudinal groove to guide a flexible tube and a transverse groove for an electromagnetically actuated clamping bolt to shut off the tube, the crossing between the longitudinal and the transverse groove is rounded off at its edges, and the clamping force exerted by the bolt rises from zero according to an asymptotic rise function over the duration of the shutting action.

    摘要翻译： 在挤压管阀中，其包括具有用于引导柔性管的纵向槽的阀块和用于电磁致动的夹紧螺栓的横向槽以切断管，所述纵向和横向槽之间的交叉在其边缘处被倒圆 并且由螺栓施加的夹紧力在关闭作用的持续时间内根据渐近上升功能从零上升。

    Method of controlling the relative humidity in a soil environment and apparatus for accomplishing same
    62.
    发明授权
    Method of controlling the relative humidity in a soil environment and apparatus for accomplishing same 失效
    控制土壤环境中的相对湿度的方法及其设备

    公开(公告)号：US4182357A

    公开(公告)日：1980-01-08

    申请号：US882789

    申请日：1978-03-02

    申请人： Leonard Ornstein

    发明人： Leonard Ornstein

    IPC分类号： A01G25/16 ,  F16K7/04 ,  F16K7/14 ,  F16K17/36 ,  G05D22/00 ,  F16K7/06

    CPC分类号： A01G25/167 ,  F16K7/04 ,  G05D22/00 ,  Y10T137/0318 ,  Y10T137/189

    摘要： Method and apparatus are disclosed for controlling the relative humidity of a soil environment at a pre-set value using an enclosed volume of a water-soluble or water-swellable material, said enclosed volume separated from the external environment by a relatively stiff and strong semipermeable membrane and separated from a pressurized irrigation water supply by a water-impermeable constrictable flexible section or diaphragm in the supply line. When the soil is more moist than the pre-set value, intake of water through the membrane causes expansion of the water-swellable material which in turn constricts the flexible section of the water supply line to interrupt the flow of water to the soil. When the soil moisture falls below the pre-set value, egress of water from the water-swellable material releases the constricting force on the flexible section thereby allowing increased flow of water through the flexible section of supply line to the soil.This process, which is called hygrostatic irrigation, is especially useful for optimized and unattended control and delivery of water to the root system of a plant growing in soil, particularly a potted plant, as well as for water conservation in the agricultural irrigation of arid regions. It also permits the optimized delivery to a plant, on a continuous basis in proportion to the water consumed, of nutrients, e.g. fertilizers dissolved at appropriate low concentrations in the supply water.

    摘要翻译： 公开了用于使用封闭体积的水溶性或水可溶胀材料以预定值控制土壤环境的相对湿度的方法和装置，所述封闭容积通过相对僵硬和强的半透性与外部环境分离 膜，并且通过供水管线中的不透水的可收缩柔性部分或隔膜与加压灌溉水源分离。 当土壤比预先设定的值更潮湿时，通过该膜的水摄入引起水溶胀性材料的膨胀，这反过来又限制了供水管线的柔性部分，以阻止水流入土壤。 当土壤水分低于预设值时，来自水溶胀材料的水的出口释放了柔性部分上的收缩力，从而允许水通过供应管线的柔性部分增加到土壤中。 这种被称作潮湿灌溉的过程特别适用于对土壤特别是盆栽植物生长的植物根系进行优化和无人管理的控制和输送，以及干旱地区农业灌溉中的节水。 。 它还允许优选地以与所消耗的水成比例的比例连续地向植物输送营养物质，例如营养物质。 肥料以适当的低浓度溶解在供水中。

    Fluid metering valve
    63.
    发明授权
    Fluid metering valve 失效
    流体计量阀

    公开(公告)号：US4171006A

    公开(公告)日：1979-10-16

    申请号：US840781

    申请日：1977-10-11

    申请人： Robert E. Steere, Jr.

    发明人： Robert E. Steere, Jr.

    IPC分类号： F16K7/06 ,  F16K7/04

    CPC分类号： F16K7/04 ,  Y10T137/87161 ,  Y10T137/87981

    摘要： The present invention is related to a fluid metering valve that is specifically constructed to provide fine metering at extremely low flow rates while still providing a full shut-off capability. The fluid metering valve of the present invention is specifically adapted to be utilized in conjunction with corrosive fluids or fluids containing suspended solid particles that would otherwise damage or clog a comparable precision needle valve.

    摘要翻译： 本发明涉及一种流体计量阀，其特别构造为在极低流量下提供精细计量，同时仍然提供完全关闭能力。 本发明的流体计量阀特别适于与腐蚀性流体或含有悬浮固体颗粒的流体结合使用，否则会损坏或堵塞可比较的精密针阀。

    Adjustable pressure control valve
    64.
    发明授权
    Adjustable pressure control valve 失效
    可调节压力控制阀

    公开(公告)号：US3828822A

    公开(公告)日：1974-08-13

    申请号：US36239773

    申请日：1973-05-21

    申请人： WITTE T

    发明人： WITTE T

    IPC分类号： F16K7/04 ,  F15D1/02

    CPC分类号： F16K7/04 ,  Y10T137/7804

    摘要： A pressure regulating valve which is readily adjustable in continuous operation, for regulating the outlet pressure of a fluid, liquid or gas, flowing through the valve, said valve being capable of maintaining a uniform outlet pressure despite variations in the rate of flow or in the inlet line pressure. The valve contains a flexible tubing or bladder through which the fluid flows, with a lever arm resting along the length of the tubing. The lever arm is backed against a roller which may be located at any point along the length of the lever arm, so as to vary the pivot point of the lever arm as rotated by the pressure exerted by the tubing against both sides of the pivot point. Rotation of the lever arm in the closing direction acts to clamp the input end of the tubing so as to restrict the flow of fluid into the tubing and thus restrict the outlet fluid pressure.

    Bioprocess Flow System
    67.
    发明公开
    Bioprocess Flow System 审中-公开

    公开(公告)号：US20230417332A1

    公开(公告)日：2023-12-28

    申请号：US18462316

    申请日：2023-09-06

    申请人： Cytiva Sweden AB

    发明人： Klaus Gebauer

    IPC分类号： F16K7/04 ,  F16K7/12 ,  F16K31/12 ,  F16K31/122 ,  F16K31/126

    CPC分类号： F16K7/04 ,  F16K7/12 ,  F16K31/126 ,  F16K31/122 ,  F16K31/12

    摘要： A valve configured to be in a first state, which is an open state when a flow through the tube should be allowed; a second state during some parts of a process run in the system, said second state is a closed state were a first closing force is provided; and a third state during some parts of a process run in the system, said third state is a closed state were a second closing force is provided which is a higher force than the first closing force.

    Encapsulated system for pressurized fluid processes
    69.
    发明授权
    Encapsulated system for pressurized fluid processes 有权

    公开(公告)号：US11754191B2

    公开(公告)日：2023-09-12

    申请号：US17835166

    申请日：2022-06-08

    申请人： Repligen Corporation

    发明人： Michael C. Gagne ,  Dean C. Richards ,  Steven V. Cates

    IPC分类号： F16K7/04 ,  F16L57/02 ,  F16K27/02 ,  F16L57/00

    CPC分类号： F16K7/04 ,  F16K27/0236 ,  F16L57/00 ,  F16L57/02 ,  F16L2201/20

    摘要： Fluid management systems for handling pressurized fluid connect various subsystems or subunits without the need to use reinforced tubing. The system utilizes one or more segments of unreinforced conduit that are encapsulated at various points along a length of the segment with one or more rigid encapsulating members. The unreinforced conduit may be made a disposable element while the rigid encapsulating members may be re-used. In one aspect, the encapsulating member may include a two-part valve body that surrounds and encapsulates a portion of the unreinforced conduit. In another aspect, the encapsulating member may include a two-part jacket that surrounds and encapsulates a portion of the unreinforced conduit. The two-part valve bodies and two-part jackets may be joined at various points within the system as part of the overall flow system.