DE59708029D1 - Piston - Google Patents

Piston

Info

Publication number
DE59708029D1
DE59708029D1 DE59708029T DE59708029T DE59708029D1 DE 59708029 D1 DE59708029 D1 DE 59708029D1 DE 59708029 T DE59708029 T DE 59708029T DE 59708029 T DE59708029 T DE 59708029T DE 59708029 D1 DE59708029 D1 DE 59708029D1
Authority
DE
Germany
Prior art keywords
piston
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE59708029T
Other languages
German (de)
Inventor
Walter Lutz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WALU LABORTECHNIK GmbH
Original Assignee
WALU LABORTECHNIK GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WALU LABORTECHNIK GmbH filed Critical WALU LABORTECHNIK GmbH
Application granted granted Critical
Publication of DE59708029D1 publication Critical patent/DE59708029D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
    • G01N35/1095—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices for supplying the samples to flow-through analysers
    • G01N35/1097—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices for supplying the samples to flow-through analysers characterised by the valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/02—Burettes; Pipettes
    • B01L3/0203—Burettes, i.e. for withdrawing and redistributing liquids through different conduits
    • B01L3/0206—Burettes, i.e. for withdrawing and redistributing liquids through different conduits of the plunger pump type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
    • F04B11/005—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons
    • F04B11/0058—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons with piston speed control
    • F04B11/0066—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons with piston speed control with special shape of the actuating element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • F04B9/042—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
    • G01N1/2035—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Reciprocating Pumps (AREA)
DE59708029T 1996-04-18 1997-04-17 Piston Expired - Lifetime DE59708029D1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19615386 1996-04-18
DE19633583 1996-08-20
DE19647133A DE19647133A1 (en) 1996-04-18 1996-11-14 Piston burette

Publications (1)

Publication Number Publication Date
DE59708029D1 true DE59708029D1 (en) 2002-10-02

Family

ID=26024869

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19647133A Ceased DE19647133A1 (en) 1996-04-18 1996-11-14 Piston burette
DE59708029T Expired - Lifetime DE59708029D1 (en) 1996-04-18 1997-04-17 Piston

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19647133A Ceased DE19647133A1 (en) 1996-04-18 1996-11-14 Piston burette

Country Status (1)

Country Link
DE (2) DE19647133A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19845702C2 (en) * 1998-10-05 2002-06-06 Huebers Verfahrenstech Stirring and mixing device for a storage container with metering device for viscous substances, such as cast resin

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3150595A (en) * 1962-04-17 1964-09-29 Bernard John Springer Fuel pump apparatus
US3327632A (en) * 1966-01-04 1967-06-27 Carl F Gromme Variable stroke dual plunger pump
DE1942310A1 (en) * 1969-08-20 1971-03-04 Karl Kremel Brightness adjustable lamp
CH516790A (en) * 1970-01-15 1971-12-15 Medizin Labortechnik Veb K Automatic piston pipette for measuring and transferring small amounts of liquid
AT336297B (en) * 1971-02-05 1977-04-25 Lupert Rosemarie DEVICE FOR QUANTITATIVE DOSING OF TWO PLASTIC COMPONENTS
AT326903B (en) * 1972-10-18 1976-01-12 Lupert Rosemarie DEVICE FOR QUANTITATIVE DOSING OF SEVERAL PLASTIC COMPONENTS
CH618787A5 (en) * 1977-07-26 1980-08-15 Spuehl Ag
SE446655B (en) * 1985-09-13 1986-09-29 Lars Johansson Piston pump assembly for dispensing at least two components
DE8816172U1 (en) * 1988-12-30 1989-02-16 ALLTECH Dosieranlagen GmbH, 7504 Weingarten Dosing pump
DE8902519U1 (en) * 1989-03-02 1989-06-08 Reinhardt-Technik Gmbh & Co, 5883 Kierspe Device for dosing two components of a multi-component mixture

Also Published As

Publication number Publication date
DE19647133A1 (en) 1997-10-23

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition