IT1257798B - Metodo per la chiusura di sacchi a valvola - Google Patents

Metodo per la chiusura di sacchi a valvola

Info

Publication number
IT1257798B
IT1257798B ITBO920191A ITBO920191A IT1257798B IT 1257798 B IT1257798 B IT 1257798B IT BO920191 A ITBO920191 A IT BO920191A IT BO920191 A ITBO920191 A IT BO920191A IT 1257798 B IT1257798 B IT 1257798B
Authority
IT
Italy
Prior art keywords
bag
sealing
mouth
valve
heat
Prior art date
Application number
ITBO920191A
Other languages
English (en)
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 filed Critical
Priority to ITBO920191A priority Critical patent/IT1257798B/it
Publication of ITBO920191A0 publication Critical patent/ITBO920191A0/it
Priority to EP93830212A priority patent/EP0571342A1/en
Publication of ITBO920191A1 publication Critical patent/ITBO920191A1/it
Application granted granted Critical
Publication of IT1257798B publication Critical patent/IT1257798B/it

Links

Landscapes

  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

Un metodo per la chiusura a tenuta di un sacco (1) provvisto di valvola (2) in materiale termosaldabile e consistente nel: serrare le superfici adiacenti allo spigolo (10), in modo da chiudere la bocca (20), a mezzo di due forze di pressione portate in posizione di applicazione lungo traiettorie curve (T, T') intersecantisi ed aventi la concavità rivolta verso l'esterno del sacco; sigillare la bocca (20) della valvola (2) mediante un dispositivo (B) atto a trasmettere calore, ad esempio un saldatore ad ultrasuoni, e facente parte dei mezzi che consentono di applicare dette due forze di pressione. Fasi preliminari del metodo possono consistere nel ruotare il sacco e nel comprimere le pareti (11) a maggior superficie. (FIG. 6)
ITBO920191A 1992-05-21 1992-05-21 Metodo per la chiusura di sacchi a valvola IT1257798B (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ITBO920191A IT1257798B (it) 1992-05-21 1992-05-21 Metodo per la chiusura di sacchi a valvola
EP93830212A EP0571342A1 (en) 1992-05-21 1993-05-19 A method and a device for effecting a hermetic closure of bags with filler valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITBO920191A IT1257798B (it) 1992-05-21 1992-05-21 Metodo per la chiusura di sacchi a valvola

Publications (3)

Publication Number Publication Date
ITBO920191A0 ITBO920191A0 (it) 1992-05-21
ITBO920191A1 ITBO920191A1 (it) 1993-11-21
IT1257798B true IT1257798B (it) 1996-02-13

Family

ID=11338277

Family Applications (1)

Application Number Title Priority Date Filing Date
ITBO920191A IT1257798B (it) 1992-05-21 1992-05-21 Metodo per la chiusura di sacchi a valvola

Country Status (1)

Country Link
IT (1) IT1257798B (it)

Also Published As

Publication number Publication date
ITBO920191A1 (it) 1993-11-21
ITBO920191A0 (it) 1992-05-21

Similar Documents

Publication Publication Date Title
AU638595B2 (en) Vacuum packaging method and apparatus
DE3479883D1 (en) Flexible package with easy opening peel seal
MY107958A (en) Ultrasonic welding in pouch manufacture.
WO1995001288A3 (de) Verschlusseinheit aus kunststoff und verfahren zu deren herstellung
CA2115613A1 (en) Injection molding valve member sealing bushing with thin collar portion
MY126007A (en) An assembly with a pouch and a fitment and a process for its manufacture
CA2011813A1 (en) Fill tube spreader
AU3164095A (en) Paper composite for making packages for liquid or granular products
GB8725833D0 (en) Ports for fluid containers
GB8321115D0 (en) Method of forming seal
FR2439133A1 (fr) Machoire de soudure pour machine d'emballage
IT1257798B (it) Metodo per la chiusura di sacchi a valvola
CA2165123A1 (en) Apparatus and method for sealing valved bags transported by a conveyer
NZ285620A (en) Self-closing valved bag for minimising sifting losses between bag filling and sealing
ZA976336B (en) Can and facilities for its production filling and sealed closure
GB2105646B (en) Continuous heat sealer for sacks and bags of thermoplastic material
PL308114A1 (en) Closure for bags, sacks or similar flexible containers
FR2709315B1 (fr) Procédé pour rendre étanches des assemblages de palplanches, dispositif pour la mise en place du matériau d'étanchement et joint étanche ainsi réalisé.
NO994296D0 (no) Orienteringsanordning for en orienteringsfölsom lukkeanordning
FR2416781A1 (fr) Procede et dispositif de soudure d'une manche en materiau thermo-plastique
AU2880695A (en) Method and apparatus for moving a valve-sack from a filling position to a closing position, and a filling nozzle for use in connection with the filling
GB2314069A (en) Filler paste container
IT1257799B (it) Dispositivo per la chiusura a tenuta di sacchi a valvola
ES2066678A2 (es) "maquina barnizadora de tapas circulares para latas de conservas"
GB2230227A (en) Improved method and apparatus for forming fin-type back seals

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970529