3.
    发明专利
    未知

    公开(公告)号:ES2051008T3

    公开(公告)日:1994-06-01

    申请号:ES90900482

    申请日:1989-11-16

    Abstract: Optical encoding of a cuvette or other object is provided by means of multiple facets molded integrally into flanges or other portions of the object, which facets selectively refract light passing therethrough in accordance with a predetermined code. The detector for the coded light includes a separate detector for each code state of the facets, with the detector having a different output when no facets are between a light source and the detectors. The facets are preferably bevels, which are selectively angled in accordance with the code.

    PIPETTE
    5.
    发明专利
    PIPETTE 未知

    公开(公告)号:GB1531515A

    公开(公告)日:1978-11-08

    申请号:GB622576

    申请日:1976-02-17

    Abstract: 1531515 Pipette MEDICAL LABORATORY AUTOMATION INC 17 Feb 1976 [26 Feb 1975] 06225/76 Addition to 1492432 Heading B1X A pipette comprises a first air chamber and a second air chamber, a measuring piston 14a movable a predetermined distance in the first chamber between first and second limiting positions, a second piston 41, moveable in second chamber, with a substantially greater cross-sectional area than measuring piston, a valve 50 separating the air chamber so that the measuring piston displaces air from the first chamber while the second piston compresses air in the second chamber, actuating means for moving the piston, first and second fixed stops for arresting the measuring piston in its first and second limiting positions and means for mechanically engaging the valve to open the valve when the measuring piston is immediately adjacent its first limiting position, whereby air compressed by the second piston in the second chamber is admitted to the first chamber.

    7.
    发明专利
    未知

    公开(公告)号:DE2607583A1

    公开(公告)日:1976-09-09

    申请号:DE2607583

    申请日:1976-02-25

    Abstract: A mechanical pipette having a fixed stroke for aspirating and discharging a predetermined volume of liquid into and from a reservoir. A measuring piston controls the volume of liquid drawn into the reservoir and a substantially larger piston assures that all of the liquid in the reservoir is expelled therefrom on a discharge stroke. On the discharge stroke, a mechanically actuated valve is opened to admit air being compressed by the substantially larger piston into the reservoir.

    PIPETTE TIP PACKAGE
    8.
    发明专利

    公开(公告)号:CA988059A

    公开(公告)日:1976-04-27

    申请号:CA177403

    申请日:1973-07-26

    Abstract: A package of disposable pipette tips in which tapered pipette tips are supported on trays by projecting through apertures provided in the tray and in which the trays have sidewalls that extend downwardly from the tip supporting surface of the tray a distance greater than the distance the pipette tips project through the supporting surface. The sidewalls of the trays may be configured such that the bottom edge of the sidewall of a tray is supported by a shoulder formed in the sidewall of a tray on which the first tray is stacked. When the trays are thus stacked, the pipette tips on one tray project into the pipette tips on the tray below.

    10.
    发明专利
    未知

    公开(公告)号:DE2432086A1

    公开(公告)日:1975-01-23

    申请号:DE2432086

    申请日:1974-07-04

    Abstract: The invention is shown as a two part stand having receptacles for holding test tubes. The first, top part comprises a plurality of vertical receptacles for receiving the test tubes in a close fitting relationship. The second, bottom part is a rack that is interconnected to the top part in an easily detachable manner, and it comprises a base plate and vertical corner posts so that it is possible to look through all four sides of the bottom part of the stand and observe the contents of the test tubes.

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