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    13.
    发明专利
    未知

    公开(公告)号：DE2449903A1

    公开(公告)日：1975-07-03

    申请号：DE2449903

    申请日：1974-10-21

    Applicant: COULTER ELECTRONICS

    Inventor： JONES ALAN RICHARDSON

    IPC: G01N35/02 ,  B01D53/86 ,  B01D53/94 ,  B01J21/00 ,  B01J23/76 ,  B01J23/86 ,  B01J23/89 ,  B01J35/02 ,  B01J35/04 ,  B01J37/02 ,  B01L99/00 ,  B08B9/28 ,  C01B21/26 ,  G01N35/04 ,  G01N35/08 ,  G01N35/10 ,  G01N1/00 ,  B08B9/00

    Abstract: The fluid circuit is useful in an automatic chemical analysis apparatus for supplying fluid to a tube rinsing system, to an incubator tank for maintaining the level of heated bath fluid in the tank to a system for washing the tubes, to a system for washing cuvettes in colorimeters of the apparatus and to a system for providing fluid for sampling head probes of the apparatus. The tube rinsing system includes a valve for connecting a manifold, from which depends a plurality of cannulas, to either a source of rinsing fluid or a drain conduit leading to a pump reservoir or to a receiver tank so that the used rinsing fluid can be utilized for maintaining the bath level in the incubator tank. The fluid connections and the valve passageways between the cannulas and the pump reservoir or receiver tank are sized to control the flow of fluid that is siphoned out of the tubes so that the meniscus of the rinsing fluid in each tube recedes at a rate which is slow enough to inhibit, if not altogether prevent, droplets of fluid from breaking away from the meniscus and clinging to the inner side walls of the tubes whereby, most, if not all, of the rinsing fluid is withdrawn from the tubes by siphoning. The receiver tank is connected to the incubator tank and rinsing fluid, supplied to the receiver tank either directly from the cannulas or via a pump in the pump reservoir, is maintained at a desired level by a standpipe extending into the receiver tank and emptying into the pump reservoir. Additionally, the fluid circuit includes a diaphragm valve and a needle metering valve connected between the source of rinsing fluid and a conduit emptying into the receiver tank. The diaphragm valve and metering valve being operable to supply a trickle of fluid to the receiver tank only when the tube rinsing system is in a non-operative stand-by state, the trickle of fluid serving to maintain the bath level in the incubator tank when the apparatus is in a stand-by condition.

    14.
    发明专利
    未知

    公开(公告)号：DE2417626A1

    公开(公告)日：1974-11-07

    申请号：DE2417626

    申请日：1974-04-10

    Applicant: COULTER ELECTRONICS

    Inventor： GINSBERG GUENTER ,  JONES ALAN RICHARDSON

    IPC: G01F11/00 ,  B01L3/02 ,  B01L99/00 ,  F04B43/06 ,  F04B43/073 ,  G01F11/08 ,  G01N1/00 ,  G01N1/14 ,  G01N35/10

    Abstract: 1455664 Pipettes COULTER ELECTRONICS Inc 10 April 1974 [16 April 1973 18 April 1973] 16007/74 Heading B1X [Also in Divisions F1 and G1] Fixed volumes of liquid are drawn up into a cuvette 110 for analysis by means of a constant volume fluid displacement device 10, the device having a non-elastic diaphragm 16 clamped between two similar opposed concave surfaces 30, 32 for movement between and against the surfaces. A sample of liquid is drawn up into the cuvette by the application of a vacuum via a valve 154 to one side of the diphragm, and the sample is subsequently forced out of the cuvette by the application of pressure to the same side of the diaphragm via the valve. The forcing out of the sample may be assisted by pressurised air applied via a valve 164, this air serving also to purge the cuvette. The volume of the sample may either be defined by the whole volume of the space enclosed by the two concave surfaces, or by half that space. In the latter case the normal starting position of the diaphragm is midway between the concave surfaces, this method enabling an equal volume of air to be forced out from the cuvette following the forcing out of the sample.

    REAGENT MIXING APPARATUS
    15.
    发明专利
    REAGENT MIXING APPARATUS 未知

    公开(公告)号：AU4759872A

    公开(公告)日：1974-04-26

    申请号：AU4759872

    申请日：1972-10-10

    Applicant: COULTER ELECTRONICS

    Inventor： JONES ALAN RICHARDSON

    IPC: B01L99/00 ,  B01F33/40 ,  B01F3/04 ,  B01F15/00

    Abstract: A mixing device adapted to bubble air through a sample solution in a reaction tube without disturbing the tube and without carrying any contaminating portion of the sample solution into the next tube whose sample solution is to be mixed by the same device. The device includes a cylinder having a piston connected with an air injecting probe adapted to be lowered into the reaction tube and to inject bubbles and thereafter to be retracted into the cylinder while at the same time wiping the exterior of the probe by means of a cylindrical curtain of air. Means are provided to retain the probe in retracted position until the next mixing cycle.

    MAGNETIC HOPPER SYSTEM
    19.
    发明专利
    MAGNETIC HOPPER SYSTEM 未知

    公开(公告)号：AU4759972A

    公开(公告)日：1974-05-23

    申请号：AU4759972

    申请日：1972-10-10

    Applicant: COULTER ELECTRONICS

    Inventor： JONES ALAN RICHARDSON

    IPC: G01N1/00 ,  B01J19/22 ,  B65G59/06 ,  B65G60/00 ,  G01N35/02 ,  G01N35/04 ,  B65G1/06

    Abstract: The system includes a first magnetic plate mounted in a generally upright position at a first location adjacent a conveyor and adapted to hold thereagainst a plurality of objects each having a magnetizable material therein. The plate has two slots therein and a movable finger in each slot which is adapted to engage the top side of the object for sequentially moving objects downwardly onto the conveyor. A second magnetic plate is mounted in a generally upright position at a second location downstream from the first location and adjacent the conveyor. A vertically reciprocal ram powered by a pneumatic cylinder is situated at the second location and is adapted to move upwardly to sequentially move objects from the conveyor onto the second plate as each object reaches the second location.

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