IT1257798B - Method for sealing bags with valves - Google Patents

Method for sealing bags with valves

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
Italian (it)
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/en
Publication of ITBO920191A0 publication Critical patent/ITBO920191A0/en
Priority to EP93830212A priority patent/EP0571342A1/en
Publication of ITBO920191A1 publication Critical patent/ITBO920191A1/en
Application granted granted Critical
Publication of IT1257798B publication Critical patent/IT1257798B/en

Links

Landscapes

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

Abstract

A method for sealing a bag 1 fitted with a valve 2 made of heat-sealable material and consisting in: clamping the surfaces adjacent to the edge 10, so that the mouth 20 is closed, by means of two pressure forces brought into the position of application along intersecting curved trajectories T, T' whose concavities are oriented away from the bag; and sealing the mouth 20 of the valve 2 using a heat-transmitting device B such as an ultrasound welder forming part of the means that apply the said two pressure forces. Preliminary steps in the method may involve rotating the bag and compressing the walls 11 of greater surface area. <IMAGE>
ITBO920191A 1992-05-21 1992-05-21 Method for sealing bags with valves IT1257798B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ITBO920191A IT1257798B (en) 1992-05-21 1992-05-21 Method for sealing bags with valves
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 (en) 1992-05-21 1992-05-21 Method for sealing bags with valves

Publications (3)

Publication Number Publication Date
ITBO920191A0 ITBO920191A0 (en) 1992-05-21
ITBO920191A1 ITBO920191A1 (en) 1993-11-22
IT1257798B true IT1257798B (en) 1996-02-13

Family

ID=11338277

Family Applications (1)

Application Number Title Priority Date Filing Date
ITBO920191A IT1257798B (en) 1992-05-21 1992-05-21 Method for sealing bags with valves

Country Status (1)

Country Link
IT (1) IT1257798B (en)

Also Published As

Publication number Publication date
ITBO920191A1 (en) 1993-11-22
ITBO920191A0 (en) 1992-05-21

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Legal Events

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

Effective date: 19970529