EP0796667A3 - Process and device for dosing and extrusion of bicomponent sealant - Google Patents

Process and device for dosing and extrusion of bicomponent sealant Download PDF

Info

Publication number
EP0796667A3
EP0796667A3 EP97104209A EP97104209A EP0796667A3 EP 0796667 A3 EP0796667 A3 EP 0796667A3 EP 97104209 A EP97104209 A EP 97104209A EP 97104209 A EP97104209 A EP 97104209A EP 0796667 A3 EP0796667 A3 EP 0796667A3
Authority
EP
European Patent Office
Prior art keywords
cylinder
slave
master
base
catalyst
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Withdrawn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
EP97104209A
Other languages
German (de)
French (fr)
Other versions
EP0796667A2 (en
Inventor
Nadia Davanzo
Original Assignee
Nadia Davanzo
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 to ITTV960037 priority Critical patent/IT1288593B1/en
Priority to ITTV960037 priority
Application filed by Nadia Davanzo filed Critical Nadia Davanzo
Publication of EP0796667A2 publication Critical patent/EP0796667A2/en
Publication of EP0796667A3 publication Critical patent/EP0796667A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F15/00Accessories for mixers ; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F15/02Feed or discharge mechanisms
    • B01F15/0266Discharge mechanism
    • B01F15/0274Discharge mechanism characterized by the means for discharging the components from the mixer
    • B01F15/0288Discharge mechanism characterized by the means for discharging the components from the mixer using a rotary discharge means, e.g. a screw beneath the receptacle

Abstract

The present application relates to a procedure and a device for extruding, according to a variable volumetric ratio, liquid components, including very high viscosity components, called the base product and the catalyst, of a dual-component sealant (or in any case a dual-component product) and pumping them into other devices such as a mixer and an extrusion gun.
The device is made up of two dosing cylinders (1b,1c), (the base product cylinder that functions as the 'master' cylinder and the catalyst cylinder that functions as the 'slave' cylinder), whose pistons (2b,2c) are driven by rods (3b,3c) placed parallel between themselves. The piston stroke of the 'master' cylinder is driven by the pressure of the base product obtained by means of a pump that suctions the product out of a drum, while the movement of the 'slave' cylinder rod is driven by a mechanical transmission which is set in motion by the 'master' cylinder rod. The pump that suctions the catalyst therefore only feeds the 'slave' cylinder. The mechanical transmission between the movement of the 'master' cylinder rod and the 'slave' cylinder rod, is variable due to the substitution of the components of the kinematic movement but is strictly constant during piston strokes. Appropriate valves, such as slide valves, enable the device to function continuously insofar as they invert the piston strokes when the base product piston comes to its stroke end.
EP97104209A 1996-03-20 1997-03-13 Process and device for dosing and extrusion of bicomponent sealant Withdrawn EP0796667A3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ITTV960037 IT1288593B1 (en) 1996-03-20 1996-03-20 DEVICE FOR DOSING AND EXTRUSION OF TWO-COMPONENT SEALANT
ITTV960037 1996-03-20

Publications (2)

Publication Number Publication Date
EP0796667A2 EP0796667A2 (en) 1997-09-24
EP0796667A3 true EP0796667A3 (en) 1998-01-14

Family

ID=11419870

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97104209A Withdrawn EP0796667A3 (en) 1996-03-20 1997-03-13 Process and device for dosing and extrusion of bicomponent sealant

Country Status (2)

Country Link
EP (1) EP0796667A3 (en)
IT (1) IT1288593B1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1334443A (en) * 1970-09-10 1973-10-17 Ferrari A Metering device
US4150769A (en) * 1976-02-09 1979-04-24 Accuratio Systems, Inc. Apparatus for metering, mixing and dispensing fluids

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1334443A (en) * 1970-09-10 1973-10-17 Ferrari A Metering device
US4150769A (en) * 1976-02-09 1979-04-24 Accuratio Systems, Inc. Apparatus for metering, mixing and dispensing fluids

Also Published As

Publication number Publication date
IT1288593B1 (en) 1998-09-23
ITTV960037A1 (en) 1997-09-22
EP0796667A2 (en) 1997-09-24
ITTV960037D0 (en) 1996-03-20

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