Easy eject pipette tip
    22.
    发明授权
    Easy eject pipette tip 有权
    轻松拔出吸头

    公开(公告)号:US06197259B1

    公开(公告)日:2001-03-06

    申请号:US09188030

    申请日:1998-11-06

    IPC分类号: B01L302

    CPC分类号: B01L3/0279

    摘要: A plastic pipette tip easily and firmly mountable on and easily ejectable from a pipette mounting shaft of a pipette by application of relatively small axial mounting and ejection forces of about six and three (3) pounds respectively. The pipette tip includes a tubular proximal portion comprising (i) a frusto-conical open upper end portion having an inner diameter at its upper end greater than the diameter of a mounting shaft of the pipette to which the pipette tip is to be mounted, (ii) a hollow mid-portion and (iii) an annular sealing region at a junction of the open end and mid-portions. The annular sealing region has an inner diameter less than “x” and is designed to engage a lower end of a sealing zone of the mounting shaft to stretch radially outward as the mounting shaft is guided and stably oriented in the proximal portion thereby creating a fluid tight seal between the sealing zone and the sealing region.

    摘要翻译: 一个塑料移液器吸头通过分别施加约6和3(3)磅的相对较小的轴向安装和弹出力而容易且牢固地安装在移液管的移液管安装轴上并且容易地从移液器的移液管安装轴排出。 移液管末端包括管状近端部分,其包括(i)截头圆锥形的敞开的上端部分,其上端的内径大于移液管的安装轴的直径,移液管尖端将被安装到该直径上 ii)中空的中间部分和(iii)在开口端和中间部分的接合处的环形密封区域。 环形密封区域具有小于“x”的内径,并且被设计成与安装轴的密封区域的下端接合以在安装轴被引导并且在近端部分中稳定地定向时径向向外延伸,从而形成流体 密封区和密封区之间密封。

    Bilaterally symmetrical battery powered microprocessor controlled lightweight hand-holdable electronic pipette
    24.
    发明授权
    Bilaterally symmetrical battery powered microprocessor controlled lightweight hand-holdable electronic pipette 失效
    双边对称电池供电微处理器控制轻便手持电子移液器

    公开(公告)号:US06299841B1

    公开(公告)日:2001-10-09

    申请号:US09263131

    申请日:1999-03-05

    IPC分类号: B01L302

    摘要: A bilaterally symmetrical lightweight hand holdable battery powered microprocessor controlled electronic pipette including an axially elongated hollow housing having a vertically extending longitudinal axis. An upper portion of the housing includes a forward compartment containing a forwardly facing alpha-numeric display, a plurality of columns of forwardly facing control keys and plurality of forwardly facing trigger switches arranged in a vertically spaced pattern such that a user in gripping a lower handle portion of the housing in either his or her right or left hand can easily reach with his thumb the control keys, trigger switches as well as a push button of a pipette tip ejector.

    摘要翻译: 一种双向对称的轻量级可手持电池供电的微处理器控制电子移液器,其包括具有垂直延伸的纵向轴线的轴向细长的中空壳体。 壳体的上部包括一个前部隔间,它包含一个向前面对的字母数字显示器,多个向前面对的控制键列和多个向前的触发开关,以垂直间隔的图案布置,使得使用者抓住一个下手柄 外壳的右侧或左侧的部分可以用拇指轻松到达控制键,触发开关以及移液器顶端喷射器的按钮。

    Refill pack for pipette tip racks
    27.
    发明授权
    Refill pack for pipette tip racks 失效
    移液器吸头架的补充包装

    公开(公告)号:US6007779A

    公开(公告)日:1999-12-28

    申请号:US819795

    申请日:1997-03-18

    CPC分类号: B65D71/70 B01L9/543

    摘要: A refill pack for storing and dispensing pipette tips into an empty tip rack. The refill rack comprises a hand-gripable carrier for an array of pipette tips releasably secured relative to the carrier such that after hand positioning the array of tips on the empty tip rack, the carrier may be released from the tips which are then free to be seated on a lower end of a pipette and removed from the tip rack.

    摘要翻译: 用于将移液管尖端存储和分配到空头架中的补充包装。 再充填架包括用于可移动吸头阵列的可手动抓握的载体,该移液管尖端相对于载体可释放地固定,使得将手尖阵列手动定位在空的末端齿条上之后,载体可以从尖端释放, 坐在移液器的下端并从尖端架上取下。

    Manual pipette with delayed-action home position latch
    28.
    发明授权
    Manual pipette with delayed-action home position latch 失效
    手动移液器,带有延迟动作原位置锁存器

    公开(公告)号:US5792424A

    公开(公告)日:1998-08-11

    申请号:US658862

    申请日:1996-08-15

    IPC分类号: B01L3/02 G01N1/14

    摘要: A manual pipette including a delayed action home position latch for engaging only after the plunger unit of the pipette has moved downward through its home position to thereafter releasably connect a moveable bottom stop member to the plunger unit to move therewith and upon an upward return of the plunger unit by the pipette's return spring to engage a home position stop to releasably lock the plunger unit in its home position without any downward force being exerted by the pipette user on the plunger unit.

    摘要翻译: 手动移液器包括用于仅在移液管的柱塞单元之后接合的延迟动作原位锁定器已经向下移动通过其原始位置,此后将可移动的底部止动构件可释放地连接到柱塞单元以随之移动,并且在向上返回时 柱塞单元通过移液管的复位弹簧接合原位置止动件以可释放地将柱塞单元锁定在其原始位置,而没有由移液管使用者施加在柱塞单元上的任何向下的力。

    Pipette tip rack refill plate hold down apparatus
    29.
    发明授权
    Pipette tip rack refill plate hold down apparatus 失效
    移液器支架机架补充板压紧装置

    公开(公告)号:US5642816A

    公开(公告)日:1997-07-01

    申请号:US548233

    申请日:1995-10-25

    IPC分类号: B65D85/00 B01L9/00 A47F7/00

    CPC分类号: B01L9/543

    摘要: A reusable pipette tip rack for successively receiving and dispensing arrays of pipette tips and including a manually releasable latch mechanism for securing a support plate carrying an array of pipette tips flat on the top of a support tray of the pipette tip rack with the array of tips seated in an array of openings in the top of the support tray. The latch mechanism comprises a latch including a laterally extending locking surface on one of the support plate or the support tray and a manually releasable locking member extending from the other of the support plate or the support tray. Preferably, the latch mechanism comprises a combination of two such latches each including a locking member and locking surface located at opposite edges of the support tray of the pipette tip rack.

    摘要翻译: 一种用于连续地接收和分配移液管尖端阵列的可重复使用的移液管末端架,并且包括可手动释放的闩锁机构,用于将携带移液管尖端的平面的支撑板平坦地固定在移液管末端架的支撑托盘的顶部上, 坐在支撑盘顶部的开口阵列中。 闩锁机构包括闩锁,其包括在支撑板或支撑托盘中的一个上的横向延伸的锁定表面和从支撑板或支撑托盘中的另一个延伸的可手动释放的锁定构件。 优选地,闩锁机构包括两个这样的闩锁的组合,每个闩锁包括锁定构件和位于移液管末端支架的支撑托盘的相对边缘处的锁定表面。