GB1008558A - Improvements in or relating to sacks of heat sealable or weldable material - Google Patents
Improvements in or relating to sacks of heat sealable or weldable materialInfo
- Publication number
- GB1008558A GB1008558A GB25157/62A GB2515762A GB1008558A GB 1008558 A GB1008558 A GB 1008558A GB 25157/62 A GB25157/62 A GB 25157/62A GB 2515762 A GB2515762 A GB 2515762A GB 1008558 A GB1008558 A GB 1008558A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- welds
- tube
- welded
- corners
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/14—Valve bags, i.e. with valves for filling
- B65D31/142—Valve bags, i.e. with valves for filling the filling port being formed by folding a flap connected to a side, e.g. block bottoms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/14—Valve bags, i.e. with valves for filling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/74—Auxiliary operations
- B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
- B31B70/84—Forming or attaching means for filling or dispensing contents, e.g. valves or spouts
- B31B70/85—Applying patches or flexible valve inserts, e.g. applying film-like valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
Abstract
1,008,558. Block-bottom valve bags. WALTER DURBECK PAPIERSACKFABRIKEN G.m.b.H. June 29, 1962 [June 30, 1961; Aug. 5, 1961; Jan. 8, 1962], No. 25157/62. Heading B8K. [Also in Division B5] At least two corners of a valve sack formed from gussetted tube are welded, as at 17 (Fig. 14) so that the inturned portions of the gussets are welded to the side wall, but not to one another, as indicated in Fig. 15; these welds ensure that the sack takes up a block form when filled. Three of the corners may be treated in this way, and a valve is formed by folding in the remaining corner about the line x-x (Fig. 1) to form the equivalent of one end of a diamond fold. The ends 15, 16 (Fig. 14) of the bag are welded. These welds may be interrupted adjacent the gussets, where the welds 17 provide a complete seal, or, alternatively, the welds 15, 16 may be produced to the edges of the tube and the welds 17 formed as spot welds. The valve corner may be formed with a slit 12 (Fig. 10) to provide a long valve 8, 9, or an extension may be secured on to the portion 8, 9. An insert may be welded over the valve corner, when this is opened out as shown in Fig. 12, and this insert may extend outside the bag to provide a valve portion which can be bent over for sealing. The bags may be welded and cut from plastie tube as indicated in Figs. 16 and 18, so that extensions 8, 9 are left at the valve corners. The weld 16 (Fig. 16) is preferably made only after the tube has been opened up, the valve folded in, and the tube closed again. The tube may be laminated of different materials.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED36454A DE1180927B (en) | 1961-06-30 | 1961-06-30 | Process for the continuous production of space bags and sacks with valve opening |
DED0036744 | 1961-08-05 | ||
DED0037858 | 1962-01-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1008558A true GB1008558A (en) | 1965-10-27 |
Family
ID=27209716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25157/62A Expired GB1008558A (en) | 1961-06-30 | 1962-06-29 | Improvements in or relating to sacks of heat sealable or weldable material |
Country Status (6)
Country | Link |
---|---|
AT (1) | AT256601B (en) |
BE (1) | BE619480A (en) |
CH (1) | CH418221A (en) |
DE (1) | DE1180927B (en) |
GB (1) | GB1008558A (en) |
NL (1) | NL280215A (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB544626A (en) * | 1941-01-17 | 1942-04-21 | Norman Russell Booth | Improved electric fuse holders |
US2772823A (en) * | 1954-06-28 | 1956-12-04 | Richard H Plamann | Bag spout |
US2815063A (en) * | 1955-01-17 | 1957-12-03 | Fleur Arthur E La | Plastic bag making machine |
-
0
- BE BE619480D patent/BE619480A/xx unknown
- NL NL280215D patent/NL280215A/xx unknown
-
1961
- 1961-06-30 DE DED36454A patent/DE1180927B/en active Pending
-
1962
- 1962-06-20 CH CH746562A patent/CH418221A/en unknown
- 1962-06-22 AT AT500562A patent/AT256601B/en active
- 1962-06-29 GB GB25157/62A patent/GB1008558A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH418221A (en) | 1966-07-31 |
DE1180927B (en) | 1964-11-05 |
NL280215A (en) | |
AT256601B (en) | 1967-08-25 |
BE619480A (en) |
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