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    • 5. 发明申请
    • ADJUSTABLE VOLUME PIPETTE WITH IMPROVED VOLUME ADJUSTMENT LOCK MECHANISM
    • 可调节体积调节器,具有改进的体积调节锁定机构
    • WO1997033148A1
    • 1997-09-12
    • PCT/US1997004811
    • 1997-03-05
    • RAININ INSTRUMENT CO., INC.
    • RAININ INSTRUMENT CO., INC.HOMBERG, William, D.
    • G01N01/14
    • B01L3/0224B01L2300/026
    • A volume adjustable pipette (30) for aspirating and dispensing precise volumes of liquid comprising an elongated hollow hand-holdable housing (32) supporting a plunger (34) for turning and for axial movement within the housing. The pipette includes an upper stop (40) which is axially adjustable within the housing in response to a turning of the plunger to adjust the volume of liquid which may be drawn into a tip (1b) secured to a lower end of the housing upon upward axial movement of the plunger to the upper stop. The pipette further includes a manually actuated lock mechanism (48) for locking the plunger against rotation to set the volume adjustment for the pipette. The lock mechanism comprises a hand-turnable knob (50) for actuating and releasing the lock mechanism by virtue of two thumb and/or finger engageable wings (68a, 68b) extending outwardly from diametrically opposite sides of the hand-turnable knob. A thumb and/or finger turning force exerted on the wings in one direction effects an actuation of the lock. A thumb and/or finger turning force exerted on the wings in an opposite direction effects a release of the lock. The lock further comprises a gripping member (62) for fixedly securing the plunger against turning. A gripping member is actuated by a turning of the hand-turnable knob to force a cam surface of the knob against a cam surface of the gripping member.
    • 一种用于抽吸和分配精确体积的液体的体积可调移液管(30),包括支撑用于转动并在壳体内轴向运动的柱塞(34)的细长的中空手持式壳体(32)。 移液管包括上部止动件(40),其可响应于柱塞的转动而在壳体内可轴向调节,以调节液体的体积,该液体的体积可以被拉入到固定到壳体的下端上的尖端(1b) 柱塞向上止动件的轴向运动。 移液管还包括用于锁定柱塞以防止旋转以设定移液管的体积调节的手动致动的锁定机构(48)。 锁定机构包括用于通过从手动转动旋钮的直径相对侧向外延伸的两个拇指和/或手指可接合的翼(68a,68b)来致动和释放锁定机构的手动转动旋钮(50)。 在一个方向上施加在翼上的拇指和/或手指转动力影响锁的致动。 以相反方向施加在翼上的拇指和/或手指转动力影响锁的释放。 所述锁还包括用于固定地固定所述柱塞以防转动的夹紧构件(62)。 握持构件通过手动转动旋钮的转动而致动,以将把手的凸轮表面压靠在夹持构件的凸轮表面上。
    • 8. 发明申请
    • PIPETTE TIP RACK REFILL PLATE HOLD DOWN APPARATUS
    • WO1997015215A1
    • 1997-05-01
    • PCT/US1996016381
    • 1996-10-15
    • RAININ INSTRUMENT CO., INC.
    • RAININ INSTRUMENT CO., INC.KELLY, ChristopherRAININ, Kenneth
    • A47F07/00
    • B01L9/543
    • A reusable pipette tip rack (12) for successively receiving and dispensing arrays of pipette tips (20) and including a manually releaseable latch mechanism (10) for securing a support plate (14) carrying an array of pipette tips (20) flat on the top (16) of a support tray (18) of the pipette tip rack with the array of tips seated in an array of openings (24) in the top of the support tray. The latch mechanism (10) comprises a latch (26) including a laterally extending locking surface (28) on one of the support plate (14) or the support tray (18) and a manually releasable locking member (30) extending from the other of the support plate (14) or the support tray (18). Preferably, the latch mechanism (10) comprises a combination of two such latches (26a, 26b) each including a locking member and locking surface located at opposite edges of the support tray of the pipette tip rack.
    • 一种用于连续地接收和分配移液器吸头(20)阵列并且包括可手动释放的闩锁机构(10)的可重复使用的移液管末端齿条(12),用于将承载有吸管头(20)阵列的支撑板(14)固定在 吸管头架的支撑托盘(18)的顶部(16),其中尖端的阵列位于支撑托盘顶部的开口阵列(24)中。 闩锁机构(10)包括闩锁(26),该闩锁(26)包括在支撑板(14)或支撑托盘(18)中的一个上的横向延伸的锁定表面(28)和从另一个延伸的手动释放的锁定构件 的支撑板(14)或支撑盘(18)。 优选地,闩锁机构(10)包括两个这样的闩锁(26a,26b)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。
    • 9. 发明申请
    • PIPETTE TIP EJECTOR
    • WO1996037302A1
    • 1996-11-28
    • PCT/US1996007632
    • 1996-05-24
    • RAININ INSTRUMENT CO., INC.
    • RAININ INSTRUMENT CO., INC.HOMBERG, William, D.
    • B01L03/02
    • B01L3/0279Y10T403/606
    • A pipette tip ejector mechanism for a pipette (12) comprising a releasable connector (42) between a lower end of an ejector shaft (20) and an upper end of an ejector arm (40). The connector has a female receptor (44) and a male connector (46) which can be adapted to fit either the shaft (20) or arm (40). A cantilever (48) carries a locking member (50) or a locking shoulder (52) to engage and lock a respective shoulder (52) or member (50) on the shaft (20) or arm (40). The cantilever (48) also carries a tab (54) extending outwardly for finger engagement by a user to move the cantilever (48) for disengaging the locking member (50) from the locking shoulder (52), allowing the arm (40) to be separated from the shaft (20) of the pipette (12) for cleaning, service, replacement, or use of the pipette (12) without the arm (40).
    • 一种用于移液管(12)的移液器吸头顶出机构,包括在推出器轴(20)的下端和排出臂(40)的上端之间的可释放连接器(42)。 连接器具有阴接收器(44)和可以适于安装轴(20)或臂(40)的阳连接器(46)。 悬臂(48)承载锁定构件(50)或锁定肩部(52),以将相应的肩部(52)或构件(50)接合并锁定在轴(20)或臂(40)上。 悬臂(48)还具有向外延伸的突片(54),用于使用者手指接合以移动悬臂(48),以使锁定构件(50)与锁定肩部(52)脱离,从而允许臂(40) 与吸液管(12)的轴(20)分离,用于清洁,维修,更换或使用移液管(12)而不用臂(40)。