会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 13. 发明公开
    • ADJUSTABLE VOLUME PIPETTE WITH IMPROVED VOLUME ADJUSTMENT LOCK MECHANISM
    • PIPETTE可变容积和改进的机制,缔结这个卷
    • EP0826142A1
    • 1998-03-04
    • EP97916209.0
    • 1997-03-05
    • RAININ INSTRUMENT CO.,INC.
    • HOMBERG, William, D.
    • B01L3
    • 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.