FR2221669A1 - Non-drip precision liquid dosing disperser - discharges via split elastic nozzle subsequently sealed by suction - Google Patents

Non-drip precision liquid dosing disperser - discharges via split elastic nozzle subsequently sealed by suction

Info

Publication number
FR2221669A1
FR2221669A1 FR7309224A FR7309224A FR2221669A1 FR 2221669 A1 FR2221669 A1 FR 2221669A1 FR 7309224 A FR7309224 A FR 7309224A FR 7309224 A FR7309224 A FR 7309224A FR 2221669 A1 FR2221669 A1 FR 2221669A1
Authority
FR
France
Prior art keywords
suction
disperser
drip
subsequently sealed
precision liquid
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.)
Withdrawn
Application number
FR7309224A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7309224A priority Critical patent/FR2221669A1/en
Publication of FR2221669A1 publication Critical patent/FR2221669A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J4/00—Feed or outlet devices; Feed or outlet control devices
    • B01J4/02—Feed or outlet devices; Feed or outlet control devices for feeding measured, i.e. prescribed quantities of reagents
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K23/00—Valves for preventing drip from nozzles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

A suction device, e.g. a piston, is connected into the line between the metered supply of liquid and the discharge nozzle, which takes the form of a split teat made of rubber or plastic elastomer; as soon as delivery of a measured dose of liquid has passed through the nozzle, the suction device is actuated to retract the teat and collapse it completely so that no drips may escape from liquid remaining in the supply line. In contrast with capillary tube delivery nozzles, the elastic teat will not block up in use, it will not splash, is positively sealed when not delivering and can locate easily for delivering into small apertures.
FR7309224A 1973-03-15 1973-03-15 Non-drip precision liquid dosing disperser - discharges via split elastic nozzle subsequently sealed by suction Withdrawn FR2221669A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7309224A FR2221669A1 (en) 1973-03-15 1973-03-15 Non-drip precision liquid dosing disperser - discharges via split elastic nozzle subsequently sealed by suction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7309224A FR2221669A1 (en) 1973-03-15 1973-03-15 Non-drip precision liquid dosing disperser - discharges via split elastic nozzle subsequently sealed by suction

Publications (1)

Publication Number Publication Date
FR2221669A1 true FR2221669A1 (en) 1974-10-11

Family

ID=9116323

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7309224A Withdrawn FR2221669A1 (en) 1973-03-15 1973-03-15 Non-drip precision liquid dosing disperser - discharges via split elastic nozzle subsequently sealed by suction

Country Status (1)

Country Link
FR (1) FR2221669A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0199538A1 (en) * 1985-04-16 1986-10-29 Elopak A/S Fluid flow nozzle
WO1992015811A1 (en) * 1991-03-05 1992-09-17 V.O.F. Waij & Van De Wiel Valve
DE9409973U1 (en) * 1994-06-20 1994-08-11 Loctite Europa E.E.I.G. (E.W.I.V.), 85748 Garching Non-drip valve
EP0575469B1 (en) * 1991-03-11 1995-10-11 BULGARINI, Giovanni Catamaran for pastime, model construction or racing in any competition rating, with induced hydrodynamic stability
EP2179961A1 (en) * 2008-10-22 2010-04-28 Carlsberg Breweries A/S A valve element of a beverage dispensing assembly

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0199538A1 (en) * 1985-04-16 1986-10-29 Elopak A/S Fluid flow nozzle
WO1992015811A1 (en) * 1991-03-05 1992-09-17 V.O.F. Waij & Van De Wiel Valve
US5379985A (en) * 1991-03-05 1995-01-10 V. O. F. Waij Valve
EP0575469B1 (en) * 1991-03-11 1995-10-11 BULGARINI, Giovanni Catamaran for pastime, model construction or racing in any competition rating, with induced hydrodynamic stability
DE9409973U1 (en) * 1994-06-20 1994-08-11 Loctite Europa E.E.I.G. (E.W.I.V.), 85748 Garching Non-drip valve
EP2179961A1 (en) * 2008-10-22 2010-04-28 Carlsberg Breweries A/S A valve element of a beverage dispensing assembly
WO2010046391A1 (en) 2008-10-22 2010-04-29 Carlsberg Breweries A/S A valve element of a beverage dispensing assembly

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Legal Events

Date Code Title Description
ST Notification of lapse