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    Solute metering apparatus
    61.
    发明授权
    Solute metering apparatus 失效
    解决方案

    公开(公告)号：US3853478A

    公开(公告)日：1974-12-10

    申请号：US31765372

    申请日：1972-12-22

    Applicant: PACTIDE CORP

    Inventor： RODGERS F

    IPC: B01D3/02 ,  B01J4/02 ,  C02F1/68 ,  B01D11/02 ,  B01D13/00 ,  B01F1/00

    CPC classification number: B01D61/00 ,  B01D3/02 ,  B01J4/02 ,  C02F1/688 ,  Y10T137/4891

    Abstract: Apparatus for and method of feeding a solute into a stream of solvent at an accurately predetermined and variable rate. A solute such as an acid for treating water to prevent scale formation is disposed in a container in solid form. The interior of the container communicates with a supply of heated and deaerated distilland via a conduit blocked by a predetermined variable area microporous membrane. The heated and deaerated distilland is circulated in contact with one side of the membrane and diffuses therethrough whereby the solute dissolves therein to form a concentrated aqueous acid solution. The concentrated acid solution is permitted to diffuse back through the membrane and mix with the distilland to control the pH thereof. The solute concentration within the acid solution in the container is maintained generally constant and means are provided for indicating a change in solute concentration.

    Abstract translation: 用于将溶质以精确预定和可变速率进料到溶剂流中的装置和方法。 在固体形式的容器中设置用于处理水以防止结垢形成的溶质如酸。

    Chemical dispensing apparatus
    62.
    发明授权
    Chemical dispensing apparatus 失效
    化学分配装置

    公开(公告)号：US3754871A

    公开(公告)日：1973-08-28

    申请号：US3754871D

    申请日：1971-01-22

    Applicant: STEWART HALL CHEM CO

    Inventor： HESSEL H ,  KIELE F

    IPC: B01J4/02 ,  B01L3/00 ,  C02F1/68 ,  B01D11/02 ,  C02B1/18

    CPC classification number: B01L3/505 ,  B01F1/0027 ,  B01J4/02 ,  C02F1/688

    Abstract: A simplified chemical dispenser apparatus capable of dispensing a predetermined amount of a treatment chemical into a fluid includes a porous matrix exhibiting capillary action when the fluid contacts a surface of the matrix, a fluid treatment chemical composition located on a surface of the matrix, and housing means for covering said chemical composition and at least said chemical bearing matrix surface to shield against dripping or splashing from the top or sides. The housing may be applied as an envelope in which case the chemical supported upon the matrix is sealed therein.

    Interchangeable tip for discrete dropping apparatus
    63.
    发明授权
    Interchangeable tip for discrete dropping apparatus 失效
    可拆卸的拆卸设备

    公开(公告)号：US3677447A

    公开(公告)日：1972-07-18

    申请号：US3677447D

    申请日：1971-03-29

    Applicant: US ARMY

    Inventor： RENTZ JOHN C

    IPC: B01J4/02 ,  B67D5/54

    CPC classification number: B01J4/02

    Abstract: An apparatus and method for dispensing accurate mono-dispersed aerosol droplets wherein a syringe, a dropping needle, a conduit needle, and a fluid supply are arranged in a combination to form a droplet of liquid on the tip of the dropping needle from the syringe and to blow the droplet off of the dropping needle to a receiver means by the fluid supply.

    Abstract translation: 一种用于分配精确的单分散气溶胶液滴的装置和方法，其中注射器，滴液针，导管针和流体供应组合地组合以在注射器的尖端上形成液滴， 通过流体供应将液滴从滴液针吹出到接收器装置。

    Sample injection apparatus
    64.
    发明授权
    Sample injection apparatus 失效
    样品注射装置

    公开(公告)号：US3604267A

    公开(公告)日：1971-09-14

    申请号：US3604267D

    申请日：1969-01-15

    Applicant: BECKMAN INSTRUMENTS INC

    Inventor： JOHNS THERON

    IPC: B01J4/02 ,  G01N1/00 ,  G01N30/18

    CPC classification number: G01N30/18 ,  G01N1/22

    Abstract: Syringe-type apparatus for injecting a fluid sample into a fluid stream including a plunger section and a needle section enclosing a sample cavity of predetermined volume and diameter. The cavity includes a discharge opening in the front of the needle section and a gas inlet opening adapted to be opened or closed by a reciprocable plunger in the plunger section of the device. The plunger section also includes a gas inlet port through the sidewall thereof communicating with the inlet opening to the needle section when the plunger is in a retracted position. The needle section has a shoulder formed on the outer surface thereof at a position between the discharge opening and the inlet opening to the cavity. The shoulder is constructed to engage an abutment within a sample port thereby obstructing flow of the gas stream through the port and causing the gas stream to flow through the gas inlet port into the sample injector cavity to sweep the sample from the cavity.

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