GB1304939A - - Google Patents

Info

Publication number
GB1304939A
GB1304939A GB1304939DA GB1304939A GB 1304939 A GB1304939 A GB 1304939A GB 1304939D A GB1304939D A GB 1304939DA GB 1304939 A GB1304939 A GB 1304939A
Authority
GB
United Kingdom
Prior art keywords
slits
series
planes
parallel
slit
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
Other languages
English (en)
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 GB1304939A publication Critical patent/GB1304939A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
    • A47C27/142—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities
    • A47C27/146—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities on the outside surface of the mattress or cushion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/006—Cutting work characterised by the nature of the cut made; Apparatus therefor specially adapted for cutting blocs of plastic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/18—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/56—After-treatment of articles, e.g. for altering the shape
    • B29C44/5627—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching
    • B29C44/5663—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching by perforating the foam, e.g. to open the cells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/028—Compositions for or methods of fixing a thermally insulating material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2028/00—Nets or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • General Engineering & Computer Science (AREA)
  • Treatment Of Fiber Materials (AREA)
GB1304939D 1970-04-21 1970-04-21 Expired GB1304939A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1900670 1970-04-21

Publications (1)

Publication Number Publication Date
GB1304939A true GB1304939A (enrdf_load_stackoverflow) 1973-01-31

Family

ID=10122174

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1304939D Expired GB1304939A (enrdf_load_stackoverflow) 1970-04-21 1970-04-21

Country Status (1)

Country Link
GB (1) GB1304939A (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0001469A1 (en) * 1977-10-07 1979-04-18 Willy Poppe Foam spring and a bedding seating or supporting element made therefrom
FR2434450A1 (fr) * 1978-07-25 1980-03-21 Weltin Optac Dispositif d'absorption de son
US4294240A (en) * 1977-07-14 1981-10-13 Minnesota Mining And Manufacturing Company Perforated closed cell padding material
EP0135771A3 (en) * 1983-08-26 1985-12-18 Bayer Ag Cushion with a foam rubber heart and an air permeable cover
GB2264050A (en) * 1992-02-04 1993-08-18 David James Gilbert Baby safe sleep mattress
EP1347118A1 (de) * 2002-03-22 2003-09-24 Gefinex Gesellschaft für Innovative Extrusionsprodukte mbh Polyethylenschaum mit geringer dynamischer Steifigkeit
FR2934518A1 (fr) * 2008-07-31 2010-02-05 Sidel Participations Masse spongieuse pour traiter des fonds de recipients thermoplastiques, et installation qui en est equipee notamment pour le refroidissement des fonds chauds de recipients sortant de moulage
EP4000879A1 (en) * 2020-11-24 2022-05-25 Galloplastik S.r.l. Film for providing packaging materials and method for providing it

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4294240A (en) * 1977-07-14 1981-10-13 Minnesota Mining And Manufacturing Company Perforated closed cell padding material
EP0001469A1 (en) * 1977-10-07 1979-04-18 Willy Poppe Foam spring and a bedding seating or supporting element made therefrom
FR2434450A1 (fr) * 1978-07-25 1980-03-21 Weltin Optac Dispositif d'absorption de son
EP0135771A3 (en) * 1983-08-26 1985-12-18 Bayer Ag Cushion with a foam rubber heart and an air permeable cover
GB2264050A (en) * 1992-02-04 1993-08-18 David James Gilbert Baby safe sleep mattress
EP1347118A1 (de) * 2002-03-22 2003-09-24 Gefinex Gesellschaft für Innovative Extrusionsprodukte mbh Polyethylenschaum mit geringer dynamischer Steifigkeit
FR2934518A1 (fr) * 2008-07-31 2010-02-05 Sidel Participations Masse spongieuse pour traiter des fonds de recipients thermoplastiques, et installation qui en est equipee notamment pour le refroidissement des fonds chauds de recipients sortant de moulage
WO2010012958A3 (fr) * 2008-07-31 2010-04-08 Sidel Participations Masse spongieuse pour traiter des fonds de recipients thermoplastiques, installation et utilisation de cette masse
EP4000879A1 (en) * 2020-11-24 2022-05-25 Galloplastik S.r.l. Film for providing packaging materials and method for providing it

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee