IT1257798B - Method for sealing bags with valves - Google Patents
Method for sealing bags with valvesInfo
- 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
Links
- 238000000034 method Methods 0.000 title abstract 3
- 238000007789 sealing Methods 0.000 title abstract 3
- 238000002604 ultrasonography Methods 0.000 abstract 1
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>
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) |
-
1992
- 1992-05-21 IT ITBO920191A patent/IT1257798B/en active IP Right Grant
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 |