GB1305489A - - Google Patents

Info

Publication number
GB1305489A
GB1305489A GB1305489DA GB1305489A GB 1305489 A GB1305489 A GB 1305489A GB 1305489D A GB1305489D A GB 1305489DA GB 1305489 A GB1305489 A GB 1305489A
Authority
GB
United Kingdom
Prior art keywords
sheet
projections
base plane
centres
coincident
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
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 filed Critical
Publication of GB1305489A publication Critical patent/GB1305489A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D65/00Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38Packaging materials of special type or form
    • B65D65/44Applications of resilient shock-absorbing materials, e.g. foamed plastics material, honeycomb material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/10Forming by pressure difference, e.g. vacuum
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2025/00Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04Condition, form or state of moulded material or of the material to be shaped cellular or porous

Abstract

1305489 Sheet forming OMEGA PLASTICS Ltd 22 July 1971 [24 Sept 1970] 45625/70 Heading B5A [Also in Division B8] A sheet of packing material, used to protect contents in containers, comprises a thin sheet of microcellular expanded polystyrene which has been vacuum moulded to produce a series of rows of projections 2 on one, and corresponding recesses 3 on the other, side. The sheets, which are each of the order of 1 mm. thick, can be stacked, to provide the required packaging thickness, and also for storage. As shown in Figs. 1, 2 the projections 2 are arranged in a regular pattern and are circular in cross-section, the distance between the centres of the projections preferably being no more than three times the height of a projection above the base plane of a sheet. In a modification, Figs. 4, 5, not shown, the projections (7) are of annular form and have their bases (10) coincident with the base plane of the sheet.
GB1305489D 1970-09-24 1970-09-24 Expired GB1305489A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4562570 1970-09-24

Publications (1)

Publication Number Publication Date
GB1305489A true GB1305489A (en) 1973-01-31

Family

ID=10437939

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1305489D Expired GB1305489A (en) 1970-09-24 1970-09-24

Country Status (1)

Country Link
GB (1) GB1305489A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2531310A1 (en) * 1982-08-04 1984-02-10 Drachkovitch Albert Box for fishing weights.
FR2674510A1 (en) * 1991-03-25 1992-10-02 Lauragri Sa Package for concave-bottomed bottles
GB2272662A (en) * 1992-11-21 1994-05-25 Hadley Ind Plc Sheet material,method of producing same and rolls for use in the method
US6547280B1 (en) 1998-11-21 2003-04-15 Cellbond Limited Energy-absorbing structures
US6908143B2 (en) 1998-11-21 2005-06-21 Cellbond Limited Energy-absorbing structure
US7947380B2 (en) 2007-11-13 2011-05-24 Hadley Industries Overseas Holdings Limited Sheet material

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2531310A1 (en) * 1982-08-04 1984-02-10 Drachkovitch Albert Box for fishing weights.
FR2674510A1 (en) * 1991-03-25 1992-10-02 Lauragri Sa Package for concave-bottomed bottles
GB2272662A (en) * 1992-11-21 1994-05-25 Hadley Ind Plc Sheet material,method of producing same and rolls for use in the method
GB2272662B (en) * 1992-11-21 1996-09-04 Hadley Ind Plc Sheet material, method of producing same and rolls for use in the method
US5689990A (en) * 1992-11-21 1997-11-25 Hadley Industries Plc Sheet material, method of producing same and rolls for use in the method
US6547280B1 (en) 1998-11-21 2003-04-15 Cellbond Limited Energy-absorbing structures
US6908143B2 (en) 1998-11-21 2005-06-21 Cellbond Limited Energy-absorbing structure
US7947380B2 (en) 2007-11-13 2011-05-24 Hadley Industries Overseas Holdings Limited Sheet material
US7992418B1 (en) 2007-11-13 2011-08-09 Hadley Industries Overseas Holdings Limited Sheet material
US9138796B2 (en) 2007-11-13 2015-09-22 Hadley Industries Overseas Holdings Limited Sheet material

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Legal Events

Date Code Title Description
PS Patent sealed
433D Application made for revocation (sect. 33/1949)
433B Case decided by the comptroller ** patent revoked (sect. 33/1949)