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CA2549357A1 - Method and apparatus for accurately dispensing liquids and solids - Google Patents

Method and apparatus for accurately dispensing liquids and solids Download PDF

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Publication number
CA2549357A1
CA2549357A1 CA002549357A CA2549357A CA2549357A1 CA 2549357 A1 CA2549357 A1 CA 2549357A1 CA 002549357 A CA002549357 A CA 002549357A CA 2549357 A CA2549357 A CA 2549357A CA 2549357 A1 CA2549357 A1 CA 2549357A1
Authority
CA
Canada
Prior art keywords
solids
dispensing liquids
accurately dispensing
double helix
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
CA002549357A
Other languages
French (fr)
Other versions
CA2549357C (en
Inventor
David J. Cline
Steven Smith
Timothy S. Clark
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.)
Fluid Research Corp
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
Priority claimed from US08/752,768 external-priority patent/US5857589A/en
Application filed by Individual filed Critical Individual
Publication of CA2549357A1 publication Critical patent/CA2549357A1/en
Application granted granted Critical
Publication of CA2549357C publication Critical patent/CA2549357C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Abstract

A system for metering and dispensing single and plural component liquids and solids. The dispensing system maintains constant pressure between the output of the pump and the dispense head. The progressive cavity pump is formed from individual, interlocking pressure sections (140), each of which has a double helix bore (139). A rotor (141) is inserted into the double helix bore with an interference fit.
CA002549357A 1996-11-20 1997-11-12 Method and apparatus for accurately dispensing liquids and solids Expired - Lifetime CA2549357C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/752,768 US5857589A (en) 1996-11-20 1996-11-20 Method and apparatus for accurately dispensing liquids and solids
US08/752,768 1996-11-20
CA002272626A CA2272626C (en) 1996-11-20 1997-11-12 Method and apparatus for accurately dispensing liquids and solids

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002272626A Division CA2272626C (en) 1996-11-20 1997-11-12 Method and apparatus for accurately dispensing liquids and solids

Publications (2)

Publication Number Publication Date
CA2549357A1 true CA2549357A1 (en) 1998-06-11
CA2549357C CA2549357C (en) 2009-05-12

Family

ID=36955346

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002549357A Expired - Lifetime CA2549357C (en) 1996-11-20 1997-11-12 Method and apparatus for accurately dispensing liquids and solids
CA002549684A Expired - Fee Related CA2549684C (en) 1996-11-20 1997-11-12 Method and apparatus for accurately dispensing liquids and solids

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA002549684A Expired - Fee Related CA2549684C (en) 1996-11-20 1997-11-12 Method and apparatus for accurately dispensing liquids and solids

Country Status (1)

Country Link
CA (2) CA2549357C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112005185A (en) * 2018-04-12 2020-11-27 诺信公司 System and method for dispensing multiple component materials
CN112292649A (en) * 2018-05-24 2021-01-29 科思创知识产权两合公司 Process for the manufacture of thermosetting polymers and low-pressure metering and mixing machine for carrying out said process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112005185A (en) * 2018-04-12 2020-11-27 诺信公司 System and method for dispensing multiple component materials
CN112292649A (en) * 2018-05-24 2021-01-29 科思创知识产权两合公司 Process for the manufacture of thermosetting polymers and low-pressure metering and mixing machine for carrying out said process

Also Published As

Publication number Publication date
CA2549684A1 (en) 1998-06-11
CA2549357C (en) 2009-05-12
CA2549684C (en) 2009-05-26

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Legal Events

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EEER Examination request
MKEX Expiry

Effective date: 20171114