GB1232028A – – Google Patents
GB1232028A – – Google Patents
Info
Publication number
GB1232028A
GB1232028A
GB3846467A
GB1232028DA
GB1232028A
GB 1232028 A
GB1232028 A
GB 1232028A
GB 3846467 A
GB3846467 A
GB 3846467A
GB 1232028D A
GB1232028D A
GB 1232028DA
GB 1232028 A
GB1232028 A
GB 1232028A
Authority
GB
United Kingdom
Prior art keywords
film
web
valve
edge
bags
Prior art date
1967-08-21
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
Application number
GB3846467A
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.)
1967-08-21
Filing date
1967-08-21
Publication date
1971-05-19
1967-08-21
Application filed
filed
Critical
1971-05-19
Publication of GB1232028A
publication
Critical
patent/GB1232028A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
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
B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
B31D5/0034—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making valve inserts for bags
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
B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
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
B31B2160/00—Shape of flexible containers
B31B2160/20—Shape of flexible containers with structural provision for thickness of contents
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
B31B70/844—Applying rigid valves, spouts, or filling tubes
Abstract
1,232,028. Making valve bags. CANADIAN INDUSTRIES Ltd. 5 Aug., 1968 [21 Aug., 1967], No. 38464/67. Heading B5D. In a machine for making valve bags such as disclosed in Specification 1,211,696 a folded web 16, Fig. 8, of heat-sealable plastics film has overlapping valve panels 21 sealed along the open edges at 17 and 26 to form a tube. Gussets are formed at the sides of the tube by wheels 27, 28, 30 and V-shaped and transverse seals made. The plastics web is advanced in units of one bag width by drive rollers 33 which are governed by a photo-electric cell responding to marks printed on the film web. The tube is then cut into separate bags. Alternatively the machine can be arranged to form pillow-type bags. Valve panel insertion.-Film from reel 19, Fig. 10, overlaps thinner film from reel 18 at roller 43 and both pass through a sealing device 20 to join them at the overlap. The sealer 20 consists of a heat sealing element 45 which acts against an anvil attached to plate 50 and is activated by an air piston and cylinder 48 acting against springs 49. The sealed film passes between metering rollers 51, 52, each of which mesh together by spur gears 57, 58, Fig. 12, and are rotatably mounted on freely rotating shaft 53 and fixed shaft 54 respectively by unidirectional clutches 83, 84. The draft 53 is driven by a pinion 76 and rack 75 the extremity of which carries a rod 80 and adjustable collar 81 coacting with stop 82 to limit the throw of the rack 75 and thus meter the plastics film. The rack 75 is activated by air cylinder 77. Each end of shaft 53 carries spur gears 59 which engage racks 60 sliding in guide 61 to advance a film support plate 62 when the metering rollers discharge a length of valve panel. The film then advances between clamping element 63 and cutting member 65 until the edge lies over the anvil 86 and underneath the edge of the lower layer of the web 16 and the trailing edge of the preceeding valve panel 21. The leading edge of the valve panel is then heat sealed to the edge of the lower ply web 16 by element 87 acting against the anvil 86 and actuated by air cylinders 92, 93 through the frame 88. Air cylinder 67 clamps member 63 against the cutting member 65 and air cylinder 74 actuates a knife 70 to cut off the panel to the required length. The web 16 is advanced and a folding device 24, Fig. 8, folds the valve panel 21 over the upper layer of the web 16, to be heat sealed thereto at 25 by element 26 acting on former plate 22.
GB3846467A
1967-08-21
1967-08-21
Expired
GB1232028A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB3846467
1967-08-21
Publications (1)
Publication Number
Publication Date
GB1232028A
true
GB1232028A
(en)
1971-05-19
Family
ID=10403624
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB3846467A
Expired
GB1232028A
(en)
1967-08-21
1967-08-21
Country Status (5)
Country
Link
US
(1)
US3548722A
(en)
CH
(1)
CH507807A
(en)
FR
(1)
FR1577706A
(en)
GB
(1)
GB1232028A
(en)
IL
(1)
IL30569A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US5538573A
(en)
*
1994-12-02
1996-07-23
Cti Industries Corporation
Automatic valve insertion method and apparatus therefor
Families Citing this family (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB1281401A
(en)
*
1969-02-17
1972-07-12
Canadian Ind
Valved plastics bag
AT377427B
(en)
*
1978-06-26
1985-03-25
Hamann Klaus Jochen
DEVICE FOR SOLVABLE HOLDING OF SMALL PARTS, IN PARTICULAR TOOLS
US4481669A
(en)
*
1978-06-26
1984-11-06
W. R. Grace & Co., Cryovac Div.
Multi-walled plastics bag
NL7903733A
(en)
*
1979-05-11
1980-11-13
Wavin Bv
METHOD FOR MANUFACTURING A TRACK OF PLASTIC BAGS WITH TWO BLOCK BOTTOMS
JPS58116142A
(en)
*
1981-12-29
1983-07-11
鯨岡製袋株式会社
Device for manufacturing paper bag with valve
US4526565A
(en)
*
1983-02-23
1985-07-02
Linear Films, Inc.
Method of making flat bottom plastic bag
1967
1967-08-21
GB
GB3846467A
patent/GB1232028A/en
not_active
Expired
1968
1968-08-16
US
US757207A
patent/US3548722A/en
not_active
Expired – Lifetime
1968-08-16
IL
IL6830569A
patent/IL30569A/en
unknown
1968-08-20
CH
CH1251868A
patent/CH507807A/en
unknown
1968-08-21
FR
FR1577706D
patent/FR1577706A/fr
not_active
Expired
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US5538573A
(en)
*
1994-12-02
1996-07-23
Cti Industries Corporation
Automatic valve insertion method and apparatus therefor
Also Published As
Publication number
Publication date
CH507807A
(en)
1971-05-31
US3548722A
(en)
1970-12-22
FR1577706A
(en)
1969-08-08
IL30569A
(en)
1973-02-28
IL30569A0
(en)
1968-10-24
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Legal Events
Date
Code
Title
Description
1971-09-29
PS
Patent sealed [section 19, patents act 1949]
1972-03-29
426
Order made revoking patent and granting patent of addition in lieu thereof (sect. 26(2)/1949)
1981-12-09
PCNP
Patent ceased through non-payment of renewal fee
