GB967313A - A block bottom valve sack of weldable synthetic material,a method for its productionand a mechanism for the application of said method - Google Patents

A block bottom valve sack of weldable synthetic material,a method for its productionand a mechanism for the application of said method

Info

Publication number
GB967313A
GB967313A GB25417/62A GB2541762A GB967313A GB 967313 A GB967313 A GB 967313A GB 25417/62 A GB25417/62 A GB 25417/62A GB 2541762 A GB2541762 A GB 2541762A GB 967313 A GB967313 A GB 967313A
Authority
GB
United Kingdom
Prior art keywords
welds
bottom valve
productionand
application
windmoller
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
Application number
GB25417/62A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ALFRED WINDMOELLER
Original Assignee
ALFRED WINDMOELLER
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
Priority claimed from DEW30501A external-priority patent/DE1239929B/en
Application filed by ALFRED WINDMOELLER filed Critical ALFRED WINDMOELLER
Publication of GB967313A publication Critical patent/GB967313A/en
Expired legal-status Critical Current

Links

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
    • 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
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure
    • 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
    • B31B70/60—Uniting opposed surfaces or edges; Taping

Landscapes

  • Making Paper Articles (AREA)

Abstract

967,313. Making block-bottom bags; seaming non-metallic sheet materials. M. GENNERICH, and A. WINDMOLLER, [trading as WINDMOLLER & HOLSCHER]. July 3, 1962 [Aug. 10, 1961], No. 25417/62. Headings B5D and B5K. [Also in Division B8] Welds 17 . . . 20 (Fig. 3) are effected in a block-bottom valve sack (see Division B8) by heating members 58 (Fig. 17) mounted for adjustment peripherally on discs 55, 56 to permit adjustment for bags of different lengths. A flattening roller 65 precedes the discs 55, 56. Inserts 64 prevent the welds extending to the walls of the bag. The welds may be spot welds as shown, continuous lines, or may cover an area extending out to the margins of the corner flaps (Fig. 4, not shown). The creases of the corner flaps may be heated to a plastic condition before they are folded. A valve insert 50 (Fig. 12, not shown) is glued in before the side flaps are folded down.
GB25417/62A 1961-08-10 1962-07-03 A block bottom valve sack of weldable synthetic material,a method for its productionand a mechanism for the application of said method Expired GB967313A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW30501A DE1239929B (en) 1961-08-10 1961-08-10 Cross-bottom valve bag made of weldable plastic, a process for its production and a device for carrying out the process

Publications (1)

Publication Number Publication Date
GB967313A true GB967313A (en) 1964-08-19

Family

ID=7599523

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25417/62A Expired GB967313A (en) 1961-08-10 1962-07-03 A block bottom valve sack of weldable synthetic material,a method for its productionand a mechanism for the application of said method

Country Status (1)

Country Link
GB (1) GB967313A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104890284A (en) * 2015-01-09 2015-09-09 浙江天风塑料机械有限公司 A bottom-sewn valve sack machining device and method
CN107433735A (en) * 2017-09-07 2017-12-05 北京正达利业工贸有限公司 Valve bag process equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104890284A (en) * 2015-01-09 2015-09-09 浙江天风塑料机械有限公司 A bottom-sewn valve sack machining device and method
CN107433735A (en) * 2017-09-07 2017-12-05 北京正达利业工贸有限公司 Valve bag process equipment
CN107433735B (en) * 2017-09-07 2023-06-02 北京正达利业工贸有限公司 Valve pocket processing equipment

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