EP0195618A3 - Metering pump - Google Patents

Metering pump Download PDF

Info

Publication number
EP0195618A3
EP0195618A3 EP86301871A EP86301871A EP0195618A3 EP 0195618 A3 EP0195618 A3 EP 0195618A3 EP 86301871 A EP86301871 A EP 86301871A EP 86301871 A EP86301871 A EP 86301871A EP 0195618 A3 EP0195618 A3 EP 0195618A3
Authority
EP
European Patent Office
Prior art keywords
pistons
liquid
longitudinal passage
outlet port
pump
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.)
Granted
Application number
EP86301871A
Other versions
EP0195618B1 (en
EP0195618A2 (en
Inventor
Albert Henry Morland
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.)
CooperVision Optics Ltd
Original Assignee
CooperVision Optics Ltd
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 CooperVision Optics Ltd filed Critical CooperVision Optics Ltd
Priority to AT86301871T priority Critical patent/ATE47673T1/en
Publication of EP0195618A2 publication Critical patent/EP0195618A2/en
Publication of EP0195618A3 publication Critical patent/EP0195618A3/en
Application granted granted Critical
Publication of EP0195618B1 publication Critical patent/EP0195618B1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/714—Feed mechanisms for feeding predetermined amounts
    • B01F35/7141—Feed mechanisms for feeding predetermined amounts using measuring chambers moving between a loading and unloading position, e.g. reciprocating feed frames

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Eye Examination Apparatus (AREA)
  • Reciprocating Pumps (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

A pump is provided which is capable of delivering measured doses of a liquid, the pump comprising a body having a longitudinal passage, and a pair of opposed pistons slidingly received in said longitudinal passage, cross passages in said body which communicate with the longitudinal passage and constitute respectively an inlet port and an outlet port, means for moving the pistons in unison between the inlet port and outlet port while their opposed faces are spaced by a distance defining the liquid dose and means for closing the gap between the pistons while the pistons are in the region of the outlet port so as to deliver a measured dose of liquid through the outlet.
EP86301871A 1985-03-19 1986-03-14 Metering pump Expired EP0195618B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86301871T ATE47673T1 (en) 1985-03-19 1986-03-14 DOSING PUMP.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8507064 1985-03-19
GB858507064A GB8507064D0 (en) 1985-03-19 1985-03-19 Metering pump

Publications (3)

Publication Number Publication Date
EP0195618A2 EP0195618A2 (en) 1986-09-24
EP0195618A3 true EP0195618A3 (en) 1986-11-12
EP0195618B1 EP0195618B1 (en) 1989-11-02

Family

ID=10576229

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86301871A Expired EP0195618B1 (en) 1985-03-19 1986-03-14 Metering pump

Country Status (5)

Country Link
EP (1) EP0195618B1 (en)
JP (1) JPS61291780A (en)
AT (1) ATE47673T1 (en)
DE (1) DE3666669D1 (en)
GB (2) GB8507064D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES1021312Y (en) * 1992-05-19 1993-04-01 Caravaca Treves Milton David ALGINATE DISPENSER FOR DENTAL USE.
CN106523318B (en) * 2016-10-31 2019-04-02 深圳市世椿智能装备股份有限公司 A kind of type bidirectional piston pump and its control method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1662969A (en) * 1926-10-13 1928-03-20 Gerace Giuseppe Batter-measuring machine
GB1317412A (en) * 1971-09-06 1973-05-16 Anchor Hocking Corp Mixing and metering apparatus
FR2383607A1 (en) * 1977-03-18 1978-10-13 Laurent Raymond Volumetric dough dividing machine for large or small bakeries - is adjustable, automatic, inexpensive and can be motorised or manually operated
US4290700A (en) * 1979-11-08 1981-09-22 Mechanical Service Company Measuring apparatus for shot dispensers
US4366918A (en) * 1979-04-20 1983-01-04 Naka Seiki Company Limited Variable ratio metering, mixing and dispensing apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1662969A (en) * 1926-10-13 1928-03-20 Gerace Giuseppe Batter-measuring machine
GB1317412A (en) * 1971-09-06 1973-05-16 Anchor Hocking Corp Mixing and metering apparatus
FR2383607A1 (en) * 1977-03-18 1978-10-13 Laurent Raymond Volumetric dough dividing machine for large or small bakeries - is adjustable, automatic, inexpensive and can be motorised or manually operated
US4366918A (en) * 1979-04-20 1983-01-04 Naka Seiki Company Limited Variable ratio metering, mixing and dispensing apparatus
US4290700A (en) * 1979-11-08 1981-09-22 Mechanical Service Company Measuring apparatus for shot dispensers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM TECHNICAL DISCLOSURE BULLETIN, vol. 18, no. 1, June 1975, pages 66,67, New York, US; L.A. WILLARD: "Positive displacement dispenser" *

Also Published As

Publication number Publication date
GB8507064D0 (en) 1985-04-24
GB8606325D0 (en) 1986-04-23
GB2172666A (en) 1986-09-24
EP0195618B1 (en) 1989-11-02
EP0195618A2 (en) 1986-09-24
DE3666669D1 (en) 1989-12-07
JPS61291780A (en) 1986-12-22
ATE47673T1 (en) 1989-11-15

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