• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In a casing is a row of cylinders, each with a conical lower end on which a tip can be placed. Each cylinder contains a plunger projecting downwards from a common horizontal bar fitted with a hand knob projecting outwards through a vertical slot in the casing; when the knob is raised, liq. is drawn by suction into the tips. On the upper side of the common bar is a piston rod fitted with a vertical row of teeth with sloping edges. A spring loaded knob has a ratchet finger mating with the teeth when the knob is pressed downwards so dosed delivery of the liq. can be achieved.
    公开号:SU959612A3
    申请号:SU802908002
    申请日:1980-03-21
    公开日:1982-09-15
    发明作者:А.Суованиеми Осмо；Тервамяки Юкка
    申请人:Коммандииттиихтие Финнпипетте Осмо А., Суованиеми (Фирма)；
    IPC主号:
    专利说明:

    (5) PIPE
    The invention relates to the construction of pipettes and can be used in laboratory practice for measuring and dispensing liquid. i A well-known pipette containing a vertical case, made in the form of a frame, a common drive sleeve located in the case, cylinders with a working conical surface fixed in the lower part of the case under the sleeve, pistons fixed by their ends in the drive sleeve, and by others. cylinders entering a cylinder, a hollow handle mounted on the housing, a rod placed in the handle along the axis of the housing and connected at one end to a drive sleeve, a shaft with a push button fixed to its upper end and interchangeable tips e on the tapered surface t1 cylinders. A disadvantage of the known pipette is the complexity of its maintenance and the duration of operations for the intake and discharge of fluid. The purpose of the invention is to increase the convenience of service by separating the operations of dialing and draining the liquid. The goal is achieved by the fact that the pipette is equipped with an additional handle attached to the drive sleeve concentric with the axis of the body in which the longitudinal window is made, and the additional handle is placed into the longitudinal window. . The pipette is provided with a driving element connected to the second end of the stem along the axis of the housing, on the surface of which a ratchet is made, and a latch connecting the shaft to the ratchet. FIG. 1 shows a pipette in axonometric projection with partial cuts, general view; in fig. 2nd, longitudinal section; in fig. 3 is a side view of the lower part of the pipette; in fig. type of dosing mechanism. The pipette contains a vertical housing 1, made in the form of a frame, a common drive sleeve 2, located395
    in the housing, cylinders 3 with a working conical surface t, fixed in the lower part of the housing under sleeve 2, pistons 5 fixed at one end in the drive sleeve 2, and the other part included in cylinders 3, hollow handle 6 mounted on the body, rod 7, placed in the handle 6 along the axis of the housing and connected at one end with the drive sleeve 2, the shaft 8 with the push button 9 fixed at its upper end. Replaceable tips 10, mounted on the conical surfaces of the cylinders 3 and the additional handle 11 attached to drive tulkus 2 is concentric to the housing axis, wherein the longitudinal slot 12 is satisfied, and the additional handle 11 is placed in the longitudinal slot 12 ..
    The pipette is provided with a driving element 13 on the surface of which the ratchet 14 is connected to the second end of the rod 7 along the axis of the housing, and a latch 15 connecting the shaft 8 to the ratchet.
    The pipette works as follows. When the displacing handle, 11 rises along the window 12 from the lower position to the upper position, the pistons 5 rise together with it through an intermediate link in the form of a sleeve 2, resulting in a vacuum in cylinder 3, and sucked into the lugs 10. When the button 9 is pressed, its movement is transmitted through the shaft 8 to the latch 15. The lower end of the latch 15 is pressed against the inclined surface of the tooth at the upper end of the piston rod 7 and the ratchet 14 moves down one step and pushes the piston and 5 and pushes the amount of liquid corresponding to this movement. When ot- Without pressing the button 9, the spring 16 returns it to the upper position, with the result that the plate 17 retracts the elastic latch 15 from the ratchet 14 having an inclined surface.
    24
    When the button 9 is pressed again, new axial displacements of the ratchet 14 and pistons 5 occur until they reach the end position, and the tips 10 are not empty. Thereafter, the tips 10 can be refilled by displacing the handle 11.
    权利要求:
    Claims (2)
    [1]
    1. A pipette containing a vertical case, a frame-shaped common drive sleeve located in the case, cylinders with a working conical surface, fixed in the lower part of the case under the sleeve, pistons fixed at their ends in the drive sleeve,
    and others entering the cylinders, a hollow handle mounted on the housing, a rod placed in the handle along the axis of the housing and connected at one end to the drive sleeve, a shaft with a push button fixed to its upper end and interchangeable tips attached to conical surfaces cylinders, characterized in that, in order to improve serviceability by separating the operations of fluid collection and draining, it is equipped with an additional handle fixed on the drive sleeve concentrically with the axis of the housing in which noe window, and additional handle is placed in the longitudinal slot.
    [2]
    2. A pipette according to Claim 1, characterized in that it is provided with a drive element connected to the second end of the rod along the axis of the housing, on the surface of which a ratchet is made, and a latch connecting the shaft to the ratchet.
    Sources of information taken into account in the examination
    1. US patent ff 3855868, cl. 73 - 425.6, 12/24/1974.
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    类似技术:
    公开号 | 公开日 | 专利标题
    US4054062A|1977-10-18|Hand-held micropipettor with improved accuracy of liquid volumes transferred
    SU845757A3|1981-07-07|Pipet
    US4268481A|1981-05-19|Pipette
    US7284454B2|2007-10-23|Hand held pipette
    RU2252408C2|2005-05-20|Adjustable hypodermic
    US3302462A|1967-02-07|Pipetting device with stop mechanism
    US3809298A|1974-05-07|Syringe
    SU959612A3|1982-09-15|Pipette
    JP4347430B2|2009-10-21|Multi-cylinder pipette
    SE8900164D0|1989-01-18|DISPENSES FOR PRODUCTS IN SUCH FORM
    US4599220A|1986-07-08|Multi-channel pipetter
    FI58875B|1981-01-30|pipette
    FI60137C|1981-12-10|pipette
    US3935734A|1976-02-03|Pipettes
    US2798647A|1957-07-09|Pipette
    US4139333A|1979-02-13|Positive displacement flow through fluid pump
    GB2115719A|1983-09-14|Multi-channel pipetter
    JP6033628B2|2016-11-30|Manual weighing device
    US2249961A|1941-07-22|Fountain pen
    SU1660729A1|1991-07-07|Multiplex pipet
    RU1810105C|1993-04-23|Multichannel pipet
    SE8008285L|1981-05-28|DEVICE FOR AUTOMATIC SAMPLING OF SCREWS IN KERL
    SU1701364A1|1991-12-30|Pipette
    SU827155A1|1981-05-07|Pipette-type meter
    RU1820872C|1993-06-07|Pipet
    同族专利:
    公开号 | 公开日
    JPS55129158A|1980-10-06|
    JPS6247584B2|1987-10-08|
    FI57704B|1980-06-30|
    DE3008347C2|1989-02-23|
    DE3008347A1|1980-10-02|
    FI57704C|1980-10-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3855868A|1972-02-10|1974-12-24|O Sudvaniemi|Multiple pipette|
    JPS5539232B2|1975-09-13|1980-10-09|
    FI52025C|1976-04-08|1977-06-10|Osmo Antero Suovaniemi|Method and device for liquid dosing, liquid transfer and dilution series.|
    US4099548A|1976-08-25|1978-07-11|Oxford Laboratories Inc.|Hand-held pipette for repetitively dispensing precise volumes of liquid|DE3224077C2|1982-02-16|1989-12-14|Data Packaging Corp., Cambridge, Mass., Us|
    US4599220A|1982-02-16|1986-07-08|Yonkers Edward H|Multi-channel pipetter|
    US4659677A|1983-05-26|1987-04-21|Eastman Kodak Company|Method providing liquid mixing outside containers|
    US4779467A|1987-01-28|1988-10-25|Rainin Instrument Co., Inc.|Liquid-end assembly for multichannel air-displacement pipette|
    GB2247950A|1990-09-17|1992-03-18|N Proizv Ob Biolog Priborostro|Multichannel pipette|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI790991A|FI57704C|1979-03-23|1979-03-23|SERIEPIPETT|
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