RU94028222ARU94028222/04ARU94028222ARU94028222ARU 94028222 ARU94028222 ARU 94028222ARU 94028222/04 ARU94028222/04 ARU 94028222/04ARU 94028222 ARU94028222 ARU 94028222ARU 94028222 ARU94028222 ARU 94028222A
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Publication of RU94028222ApublicationCriticalpatent/RU94028222A/en
FIELD: hand pipettes with controlled amount of doses intended for hand sampling and dosage of liquids at analytical and research work, as well as in medicine. SUBSTANCE: offered pipette comprises a spring-loaded piston coupled to a rod and placed in a hollow casing, and a discrete mechanism adjusting the piston stroke. The discrete mechanism used for adjustment of the stroke is made in the form of a cylindrical mechanism consisting of a cylindrical holder secured an the rod and a shell installed for axial and rotary motion relative to the holder. EFFECT: improved design. 3 dwg
Claims (1)
Изобретение относится к ручным пипеткам с регулируемым объемом доз и предназначенным для ручного отбора и дозирования жидкостей при проведении аналитических и исследовательских работ, а также в медицине. Предлагается пипетка, содержащая расположенный в полом корпусе, связанный со штоком подпружиненный поршень и дискретный механизм регулировки хода поршня. Новым является выполнение дискретного механизма регулировки хода поршня в виде цилиндрического механизма, состоящего из закрепленной на штоке цилиндрической обоймы и обечайки, установленной с возможностью осевого и вращательного движения относительно обоймы.The invention relates to manual pipettes with an adjustable volume of doses and intended for manual selection and dosing of liquids during analytical and research work, as well as in medicine. A pipette is proposed that contains a spring-loaded piston connected to the stem and a discrete piston stroke adjustment mechanism connected to the rod. New is the implementation of a discrete piston stroke adjustment mechanism in the form of a cylindrical mechanism, consisting of a cylindrical cage fixed to the rod and a shell mounted with the possibility of axial and rotational movement relative to the cage.
Reciprocating pump for liq. carrying solids in suspension - has piston housed in semi-cylindrical sleeve and including rod with cam to control movement