CH289384A - Process for the production of valve sacks consisting of several staggered layers of fabric and valve sacks produced according to this process. - Google Patents

Process for the production of valve sacks consisting of several staggered layers of fabric and valve sacks produced according to this process.

Info

Publication number
CH289384A
CH289384A CH289384DA CH289384A CH 289384 A CH289384 A CH 289384A CH 289384D A CH289384D A CH 289384DA CH 289384 A CH289384 A CH 289384A
Authority
CH
Switzerland
Prior art keywords
valve sacks
fabric
production
produced according
valve
Prior art date
Application number
Other languages
German (de)
Inventor
Limited Paper Sacks
Original Assignee
Paper Sacks Ltd
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 by Paper Sacks Ltd filed Critical Paper Sacks Ltd
Publication of CH289384A publication Critical patent/CH289384A/en

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Making Paper Articles (AREA)
CH289384D 1949-07-20 1950-07-17 Process for the production of valve sacks consisting of several staggered layers of fabric and valve sacks produced according to this process. CH289384A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB289384X 1949-07-20

Publications (1)

Publication Number Publication Date
CH289384A true CH289384A (en) 1953-03-15

Family

ID=10283618

Family Applications (1)

Application Number Title Priority Date Filing Date
CH289384D CH289384A (en) 1949-07-20 1950-07-17 Process for the production of valve sacks consisting of several staggered layers of fabric and valve sacks produced according to this process.

Country Status (6)

Country Link
US (1) US2764339A (en)
BE (1) BE497124A (en)
CH (1) CH289384A (en)
DE (1) DE966516C (en)
GB (1) GB695196A (en)
NL (1) NL83723C (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2810509A (en) * 1951-04-28 1957-10-22 St Regis Paper Co Multi-ply bags with stepped corner flaps
DE1154758B (en) * 1952-07-21 1963-09-19 Paper Sacks Ltd Multi-layer cross-bottom valve bag
DE1160780B (en) * 1952-12-22 1964-01-02 Windmoeller & Hoelscher Multi-layer cross-bottom valve sack made of paper or the like with layers ending in a staggered manner in the cross-bottom
US2818003A (en) * 1953-09-03 1957-12-31 St Regis Paper Co Apparatus for making a multi-ply valve bag having an extended intermediate valve ply
DE1105790B (en) * 1955-10-10 1961-04-27 Bowaters Res And Dev Company L Multi-layer valve block bottom bags made of paper
DE1105338B (en) * 1958-09-23 1961-04-20 Natronzellstoff Und Papierfab Cross-bottom valve bag with emptying device
DE1268047B (en) * 1962-08-13 1968-05-09 West Virginia Pulp & Paper Co Gusseted multi-layer bag or sack
DE1486706B1 (en) * 1963-04-09 1971-08-12 Windmoeller & Hoelscher Multi-layer cross-bottom valve bag
US3966115A (en) * 1974-11-25 1976-06-29 International Paper Company Stepped and angle-cut, pinch closure
US4453270A (en) * 1982-05-19 1984-06-05 Westvaco Corporation Pasted valve stepped end bag
US4892665A (en) * 1983-12-05 1990-01-09 Wettlaufer Dale E Method and press for pressing liquid from thin layers of liquid containing masses
CN110435227B (en) * 2018-05-02 2021-02-19 上海洲泰轻工机械制造有限公司 Method and equipment for folding corner of side organ of packaging bag

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1633296A (en) * 1927-06-21 Multiply bag
GB343447A (en) * 1928-09-22 1931-02-10 Bates International Bag Company
US1935380A (en) * 1930-11-01 1933-11-14 Continental Paper & Bag Corp Method of making a multi-ply bag
US2013086A (en) * 1932-02-27 1935-09-03 Bagpak Inc Apparatus for and method of making multiwall bags
US2055030A (en) * 1933-09-29 1936-09-22 St Regis Paper Co Method of making stepped end bags
US2176499A (en) * 1935-11-28 1939-10-17 Hoppe Multiwall bag of paper or other material
DE656591C (en) * 1935-11-29 1938-02-12 Edgar Hoppe Multi-walled sack made of paper or other materials
DE669835C (en) * 1936-04-15 1939-01-05 Edgar Hoppe Multi-walled sack made of paper or other materials
US2246911A (en) * 1940-07-13 1941-06-24 Bagpak Inc Siftproof bag
US2360720A (en) * 1941-07-22 1944-10-17 Paper Sacks Ltd Block-bottom closure for multiply paper bags or sacks
FR941423A (en) * 1944-12-09 1949-01-11 St Regis Paper Co Multiple envelope bag
US2460885A (en) * 1944-12-09 1949-02-08 St Regis Paper Co Multiply pasted end bag with sealed inner ply
US2488038A (en) * 1946-08-23 1949-11-15 Raymond Bag Company Method of forming valve bags
GB623313A (en) * 1947-04-29 1949-05-16 Paper Sacks Ltd Improvements in and relating to multiply valve sacks

Also Published As

Publication number Publication date
BE497124A (en)
GB695196A (en) 1953-08-05
US2764339A (en) 1956-09-25
NL83723C (en)
DE966516C (en) 1957-08-14

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